Latest Update：2026/04/23 16:46:59

YOKOMIZO Hiroyuki

Researcher Name: YOKOMIZO Hiroyuki

Div (Section) name/title: Health and Environmental Risk Division（Strategic Risk Management Research Section）／Chief Senior Researcher

Degree(s): Doctorate of Science

Professional Qualification(s): Biology

Environmental Speciality Field: mathematical ecology,chemical pollutants,conservation biology

Keyword(s): mathematical modelling,dynamic optimization,simulation,conservation ecology,alian species,population dynamics,quantitative risk assessment,chemical pollutants

Membership of Academic Society: Ecological Society of Japan,the Japanese Society for Mathematical Biology,The Society of Population Ecology,The Japanese Society of Environmental Toxicology

Research Subject

Fiscal Year: 2025
- 27210 : Sustainable ecosystem management strategies for a society with a declining population
- 27217 : Research project on the ecological impact and factor analysis considering vulnerability
- 27220 : Research on the development of comprehensive indexes of health risk and ecological risk
- 27235 : Research to enhance adaptation strategies and practices based on scientific projections
- 27353 : Development of ecological impact assessment methods based on interstage flows and reproductive-value flows: A Comparative analysis of animals and plants
- 27363 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
- 27406 : Fundamental study for strategic risk management
- 27551 : Development of New Approaches to Environmental Economics and Evaluation
Fiscal Year: 2024
- 26823 : Sustainable ecosystem management strategies for a society with a declining population
- 26831 : Research project on the ecological impact and factor analysis considering vulnerability
- 26835 : Research on the development of comprehensive indexes of health risk and ecological risk
- 26850 : Research to enhance adaptation strategies and practices based on scientific projections
- 27002 : Development of ecological risk assessment methods for multiple chemicals based on the similarity of activity/structure and exposure profile
- 27012 : Fundamental study for strategic risk management
- 27045 : Development of New Approaches to Environmental Economics and Evaluation
- 27056 : Spatiotemporal variation of heavy metal concentrations in rivers surrounding abandoned mines and assessment of legacy effects on ecosystems
- 27057 : Development of Agent-based models coupling value/behavior change and ecosystem dynamics
- 27100 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
Fiscal Year: 2023
- 26415 : Sustainable ecosystem management strategies for a society with a declining population
- 26421 : Research project on the ecological impact and factor analysis considering vulnerability
- 26424 : Research on the development of comprehensive indexes of health risk and ecological risk
- 26437 : Research to enhance adaptation strategies and practices based on scientific projections
- 26581 : Development of Agent-based models coupling value/behavior change and ecosystem dynamics
- 26611 : Fundamental study for strategic risk management
- 26716 : Development of ecological risk assessment methods for multiple chemicals based on the similarity of activity/structure and exposure profile
- 26736 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
Fiscal Year: 2022
- 25974 : Research project on the ecological impact and factor analysis considering vulnerability
- 25977 : Research on the development of comprehensive indexes of health risk and ecological risk
- 25979 : Sustainable ecosystem management strategies for a society with a declining population
- 26003 : Research to enhance adaptation strategies and practices based on scientific projections
- 26143 : Fundamental study for strategic risk management
- 26144 : Optimal management of mammal populations based on value of information analysis
- 26145 : Bio-demographic study using random matrix — Comparative analysis to big database of population matrices—
- 26257 : Water level operation for ecosystem regime management of lakes
- 26293 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
- 26305 : Study on Sustainable Ecosystem Management of River Watersheds toward Climate-Change Adaptation
- 26337 : Development of ecological risk assessment methods for multiple chemicals based on the similarity of activity/structure and exposure profile
Fiscal Year: 2021
- 25512 : Sustainable ecosystem management strategies for a society with a declining population
- 25518 : Study on ecological impact and factor analysis considering vulnerability
- 25521 : Research on the development of comprehensive indexes of health risk and ecological risk
- 25537 : Research to enhance adaptation strategies and practices based on scientific projections
- 25669 : Fundamental study for strategic risk management
- 25674 : Intellectual research infrastructure development：Systematic monitoring, development of information on impact prediction and adaptation, and development of tools in the field of climate change adaptation
- 25756 : Optimal management of mammal populations based on value of information analysis
- 25757 : Life history research of perennial forest floor plants by integration of multiple approaches
- 25758 : Bio-demographic study using random matrix — Comparative analysis to big database of population matrices—
- 25774 : Water level operation for ecosystem regime management of lakes
- 25910 : Study on Sustainable Ecosystem Management of River Watersheds toward Climate-Change Adaptation
Fiscal Year: 2020
- 25098 : Harmonization with Nature Research Program
- 25099 : Research Program on Health and Environmental Safety
- 25139 : Integrated Evaluation of Biodiversity and the Development of Tools for Conservation Planning
- 25143 : Ecological Risk Assessment and Management Based on Ecological Models
- 25148 : Research Project on the Scientific and Social Framework of Risk Assessment and Management
- 25233 : Life history research of perennial forest floor plants by integration of multiple approaches
- 25256 : Bio-demographic study using random matrix — Comparative analysis to big database of population matrices—
- 25257 : Optimal management of mammal populations based on value of information analysis
- 25260 : Basic Study for Strategic Risk Management
- 25390 : Study on Sustainable Ecosystem Management of River Watersheds toward Climate-Change Adaptation
Fiscal Year: 2019
- 24691 : Developping statistical models for evaluation of wildlife management
- 24695 : Harmonization with Nature Research Program
- 24696 : Research Program on Health and Environmental Safety
- 24719 : Integrated Evaluation of Biodiversity and the Development of Tools for Conservation Planning
- 24723 : Ecological Risk Assessment and Management Based on Ecological Models
- 24728 : Research Project on the Scientific and Social Framework of Risk Assessment and Management
- 24795 : Life history research of perennial forest floor plants by integration of multiple approaches
- 24796 : Development of optimal management strategies to control mammal populations incorporating behaviorally mediated indirect effect
- 24820 : Basic Study for Strategic Risk Management
- 25005 : Scientific clarification and countermeasure to ecological impacts of pesticides on dragonflies
Fiscal Year: 2018
- 24302 : Integrated evaluation of biodiversity and the development of tools for conservation planning
- 24306 : Ecological risk assessment and management based on ecological models
- 24311 : Research project on the scientific and social framework of risk assessment and management
- 24354 : Harmonization with Nature Research Program
- 24355 : Research program on health and environmental safety
- 24392 : Developing sustainable wildlife-friendly farming using biodiversity resources of Satoyama and Satoumi
- 24393 : Development of optimal management strategies to control mammal populations incorporating behaviorally mediated indirect effect
- 24451 : Scientific Clarification and Countermeasure to Ecological Impacts of Pesticides on Dragonflies
- 24495 : Basic study for strategic risk management
Fiscal Year: 2017
- 23817 : Research project on the scientific and social framework of risk assessment and management
- 23822 : Ecological risk assessment and management based on ecological models
- 23826 : Integrated evaluation of biodiversity and the development of tools for conservation planning
- 23845 : Harmonization with Nature Research Program
- 23847 : Research program on health and environmental safety
- 23956 : Developing sustainable wildlife-friendly farming using biodiversity resources of Satoyama and Satoumi
- 23957 : Basic study for strategic risk management
- 23959 : Development of optimal management strategies to control mammal populations incorporating behaviorally mediated indirect effect
- 23960 : Comparative study of demography in plant populations using big data on life history matrices
- 23982 : Developping statistical models for evaluation of wildlife management
- 24192 : Scientific Clarification and Countermeasure to Ecological Impacts of Pesticides on Dragonflies
Fiscal Year: 2016
- 23408 : Harmonization with Nature Research Program
- 23412 : Integrated evaluation of biodiversity and the development of tools for conservation planning
- 23414 : Research program on health and environmental safety
- 23417 : Ecological risk assessment and management based on ecological models
- 23422 : Research project on the scientific and social framework of risk assessment and management
- 23515 : Comparative study of demography in plant populations using big data on life history matrices
- 23645 : Basic study for strategic risk management
- 23769 : Developing sustainable wildlife-friendly farming using biodiversity resources of Satoyama and Satoumi
Fiscal Year: 2015
- 23000 : Studies on the ecological risk assessment and management of pollutant chemicals
- 23008 : The study on the large scale assessment of biodiversity and its furure projection based on social scenario analysis
- 23009 : The study for biodiversity impact assessment and management of artificial disturbance to environment
- 23049 : Development of optimal management strategies to control mammal populations using spatially explicit models
- 23174 : Theoretical ecological study for developping quantitative ecological risk assessment
- 23180 : Development of control methods for priority measures against invasive alien speices
Fiscal Year: 2014
- 22588 : Studies on the ecological risk assessment and management of pollutant chemicals
- 22596 : The study on the large scale assessment of biodiversity and its furure projection based on social scenario analysis
- 22597 : The study for biodiversity impact assessment and management of artificial disturbance to environment
- 22717 : Development of optimal management strategies to control mammal populations using spatially explicit models
- 22804 : Development of control methods for priority measures against invasive alien speices
- 22806 : Theoretical ecological study for developping quantitative ecological risk assessment
Fiscal Year: 2013
- 22172 : Studies on the ecological risk assessment and management of pollutant chemicals
- 22180 : The study on the large scale assessment of biodiversity and its furure projection based on social scenario analysis
- 22181 : The study for biodiversity impact assessment and management of artificial disturbance to environment
- 22366 : Theoretical ecological study for developping quantitative ecological risk assessment
- 22372 : Development of optimal management strategies to control mammal populations using spatially explicit models
- 22527 : Development of integrated control methods and systems for invasive alien animals
Fiscal Year: 2012
- 21743 : Studies on the ecological risk assessment and management of pollutant chemicals
- 21751 : The study on the large scale assessment of biodiversity and its furure projection based on social scenario analysis
- 21752 : The study for biodiversity impact assessment and management of artificial disturbance to envirinment
- 21853 : Development of integrated control methods and systems for invasive alien animals
- 22026 : Optimal management of invasive populations under uncertainties on connectivity between local populations
- 22027 : Optimal spatial allocation of management efforts for mammal populations
- 22041 : Theoretical ecological study for developping quantitative ecological risk assessment
Fiscal Year: 2011
- 21300 : Studies on the ecological risk assessment and management of pollutant chemicals
- 21309 : The study on the large scale assessment of biodiversity and its furure projection based on social scenario analysis
- 21310 : The study for biodiversity impact assessment and management of artificial disturbance to envirinment
- 21536 : Development of integrated control methods and systems for invasive alien animals
- 21540 : Quantitative environmental risk assessment and cost/benefit analysis of chemical pollutants
- 21590 : Theoretical ecological study for developping quantitative ecological risk assessment
- 21627 : Optimal management of invasive populations under uncertainties on connectivity between local populations
- 21628 : Optimal spatial allocation of management efforts for mammal populations
Fiscal Year: 2010
- 20855 : Optimal management of invasive populations under uncertainties on connectivity between local populations
- 20955 : Development of environmental risk assessment methods with reference to biodiversity and ecosystem functioning
- 20973 : Quantitative environmental risk assessment and cost/benefit analysis of chemical pollutants
- 21012 : Assessment tool for national land-use planning for biodiversity conservation
Fiscal Year: 2009
- 20407 : Development of environmental risk assessment methods with reference to biodiversity and ecosystem functioning
- 20510 : Quantitative environmental risk assessment and cost/benefit analysis of chemical pollutants

View all

Research Result (Publication)

all
Original Paper
Review
Other Publications

Original Paper
Evaluating the overall population-level relevance of the current ecotoxicological tests using demographic model analysis

Presenter : Tsuzuki Y., Yokomizo H.
Title : , Environmental Toxicology and Chemistry, 45(3):659-667 (2026)
Other Publications
Population Ecology 2026 Editorial

Presenter : Yokomizo H.
Title : , Population Ecology (2026)
Original Paper
Experimental test of the effects of prolonged flooding practices on animal communities in rice paddy fields

Presenter : Nakanishi K., Akanuma H., Kobayashi R., Yokomizo H., Hayashi T., Robson B., Usio N.
Title : , Agriculture, Ecosystems & Environment, 379:109369 (2025)
Other Publications
Population Ecology 2025 Editorial

Presenter : Yokomizo H.
Title : , Population Ecology, 67(1):3-5 (2025)
Original Paper
The scale-variant interstage flow makes biological insights possible: A response to Hinrichsen

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Takada T.
Title : , Journal of Ecology, 113(6):1458-1460 (2025)
Other Publications
Announcement of the Sixth Population Ecology Awards

Presenter : Kasuya E., Yokomizo H.
Title : , Population Ecology, 67(4):389-390 (2025)
Original Paper
Interstage flow matrices: Population statistic derived from matrix population models

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Kawai Y., Takada T.
Title : , Journal of Ecology, 112:1326-1338 (2024)
Original Paper
State-space model combining local camera data and regional administration data reveals population dynamics of wild boar

Presenter : Kasada M., Nakashima Y., Fukasawa K., Yajima G., Yokomizo H., Miyashita T.
Title : , Population Ecology, 65(1):80-92 (2023)
Original Paper
Assessing ecosystem vulnerability under severe uncertainty of global climate change

Presenter : Yoshikawa T., Koide D., Yokomizo H., Kim Ji Yoon, Kadoya T.
Title : , Scientific Reports, 13:5932 (2023)
Original Paper
Inferring causal impacts of extreme water-level drawdowns on lake water clarity using long-term monitoring data

Presenter : Nakanishi K., Yokomizo H., Fukaya K., Kadoya T., Matsuzaki S., Nishihiro J., Kohzu A., Hayashi T.
Title : , Science of The Total Environment, 838(2): (2022)
Original Paper
What do we want to estimate from observational datasets? Choosing appropriate statistical analysis methods based on the chemical management phase

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Title : , Integrated Environmental Assessment and Management, 18(5):1414-1422 (2022)
Original Paper
Quantitative analyses of misclassification rates in the hazard classification of environmental chemicals: Evaluation of procedures for deriving predicted no-effect concentrations in the Chemical Substance Control Law in Japan

Presenter : Hayashi T., Furuhama A., Yokomizo H., Yamamoto H.
Title : , Risk analysis (2022)
Original Paper
Spatial optimization of invasive species control informed by management practices

Presenter : Nishimoto M., Miyashita T., Yokomizo H., Matsuda H., Imazu T., Takahashi H., Hasegawa M., Fukasawa K.
Title : , Ecological Applications, 31(3):e02261 (2021)
Original Paper
Population model analyses of the combined effects of insecticide use and habitat degradation on the past sharp declines of the dragonfly Sympetrum frequens

Presenter : Nakanishi K., Yokomizo H., Hayashi T.
Title : , Science of The Total Environment, 787(147526): (2021)
Other Publications
Chlorantraniliprole application differentially affects adult emergence of Sympetrum dragonflies in rice paddy fields.

Presenter : Nakanishi K., Usio N., Yokomizo H., Takashima T., Hayashi T.
Title : , Paddy and Water Environment (2021)
Original Paper
Effects of systemic insecticides on the population dynamics of the dragonfly Sympetrum frequens in Japan: Statistical analyses using field census data from 2009 to 2016

Presenter : Nakanishi K., Ueda T., Yokomizo H., Hayashi T.
Title : , Science of The Total Environment, 703:134499 (2020)
Other Publications
Comments to Persistent problems in the construction of matrix population models

Presenter : Che-Castaldo J., Jones O.R., Kendall B.E., Burns J.H., Childs D.Z., Ezard T.H.G., Hernandez-Yanez H., Hodgson D.J., Jongejans E., Knight T., Merow C., Ramula S., Stott I., Vindenes Y., Yokomizo H., Salguero Gomez R.
Title : , Ecological Modelling, 416:108913 (2020)
Original Paper
Preservation of the value of rice paddy fields: Investigating how to prevent farmers from abandoning the fields by means of evolutionary game theory

Presenter : Lee J.H., Yamaguchi R., Yokomizo H., Nakamaru M.
Title : , Journal of Theoretical Biology, 495:110247 (2020)
Original Paper
The effect of intervention in nickel concentrations on benthic macroinvertebrates: A case study of statistical causal inference in ecotoxicology

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Title : , Environmental Pollution, 265(115059): (2020)
Original Paper
Evaluation of interregional consistency in associations between neonicotinoid insecticides and functions of benthic invertebrate communities in rivers in urban rice-paddy areas

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Title : , Science of the Total Environment, 743(140627): (2020)
Original Paper
Investigating effect of climate warming on the population declines of Sympetrum frequens during the 1990s in three regions in Japan

Presenter : Nakanishi K., Koide D., Yokomizo H., Kadoya T., Hayashi T.
Title : , Scientific Reports, 10(12719): (2020)
Original Paper
Much ado about interaction: A combination of linear processes yields non-linear toxic effects in chemical mixtures

Presenter : Kamo M., Iwasaki Y., Yokomizo H.
Title : , Chemosphere, 219:89-94 (2019)
Original Paper
Estimating range expansion of wildlife in heterogeneous landscapes: A spatially explicit state‐space matrix model coupled with an improved numerical integration technique

Presenter : Osada Y., Kuriyama T., Asada M., Yokomizo H., Miyashita T.
Title : , Ecology and Evolution, 9:318-327 (2019)
Original Paper
Broad-scale effect of herbicides on functional properties in benthic invertebrate communities of rivers: An integrated analysis of biomonitoring and exposure evaluations

Presenter : Misaki T., Yokomizo H., Tanaka Y.
Title : , Ecotoxicology and Environmental Safety, 171:173-180 (2019)
Original Paper
Associations of community structure and functions of benthic invertebrates with nickel concentrations: analyses from field surveys

Presenter : Takeshita K., Misaki T., Hayashi T., Yokomizo H.
Title : , Environmental Toxicology and Chemistry, 38(8):1728-1737 (2019)
Original Paper
Evaluation of the ecological niche model approach in spatial conservation prioritization

Presenter : Ishihama F., Takenaka A., Yokomizo H., Kadoya T.
Title : , PLOS ONE (2019)
Original Paper
Assessment of Instructions on Protection Against Food Contaminated with Radiocesium in Japan in 2011

Presenter : Seto M., Uriu K., Kawaguchi I., Yokomizo H.
Title : , Risk Analysis, 38(6):1154-1168 (2018)
Original Paper
Were the sharp declines of dragonfly populations in the 1990s in Japan caused by fipronil and imidacloprid? An analysis of Hill’s causality for the case of Sympetrum frequens

Presenter : Nakanishi K., Yokomizo H., Hayashi T.
Title : , Environmental Science and Pollution Research, 25(35):35352-35364 (2018)
Original Paper
Relative robustness of NOEC and ECx against large uncertainties in data

Presenter : Tanaka Y., Nakamura K., Yokomizo H.
Title : , PLOS ONE, 13(11):e0206901 (2018)
Original Paper
The influence of time since introduction on the population growth of introduced species and the consequences for management

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Title : , Population Ecology, 59(2):89-97 (2017)
Original Paper
ECOLOGICAL RISK ASSESSMENT OF HERBICIDES IN JAPAN: INTEGRATING SPATIOTEMPORAL VARIATION IN EXPOSURE AND EFFECTS USING A MULTIMEDIA MODEL AND ALGAL DENSITY DYNAMICS MODELS

Presenter : Hayashi TI., Imaizumi Y., Yokomizo H., Tatarazako N., Suzuki N.
Title : , Environmental Toxicology and Chemistry, 35(1):233-240 (2016)
Original Paper
Efficient management for the Hokkaido population of sika deer Cervus nippon in Japan: accounting for migration and management cost

Presenter : Ijima H., Fujimaki A., Ohta U., Yamamura K., Yokomizo H., Uno H., Matsuda H.
Title : , Population Ecology, 57:397-408 (2015)
Original Paper
Explanation of non-additive effects in mixtures of similar mode of action chemicals

Presenter : Kamo M., Yokomizo H.
Title : , Toxicology, 335:20-26 (2015)
Original Paper
Exploring the drivers of wildlife population dynamics from insufficient data by Bayesian model averaging

Presenter : Osada Y., Kuriyama T., Asada M., Yokomizo H., Miyashita T.
Title : , Population Ecology, 57:485-493 (2015)
Review
Decision science for effective management of populations subject to stochasticity and imperfect knowledge.

Presenter : Yokomizo H., Coutts S.R., Possingham H.P.
Title : , Population Ecology, 56(1):41-53 (2014)
Original Paper
Meta-models as a straight forward approach to the sensitivity analysis of complex models.

Presenter : Coutts S.R., Yokomizo H.
Title : , Population Ecology, 56(1):7-19 (2014)
Review
Making the most of mathematical models for effective environmental management.

Presenter : Yokomizo H., Takimoto G.
Title : , Population Ecology, 56(1):3-5 (2014)
Original Paper
Linking ecosystem and socioeconomic dynamics for the effective management of agricultural landscapes

Presenter : Yokomizo H.
Title : , Social-Ecological Restoration in Paddy-Dominated Landscapes, 283-294 (2014)
Original Paper
The behavior of multiple independent managers and ecological traits interact to determine prevalence of weeds

Presenter : Coutts S.R., Yokomizo H., Buckley Y.M.
Title : , Ecological Applications, 23(3):523-536 (2013)
Original Paper
Setting the most robust effluent level under severe uncertainty: Application of information-gap decision theory to chemical management

Presenter : Yokomizo H., naito W., Tanaka Y., kamo M.
Title : , Chemosphere, 93(10):2224-2229 (2013)
Original Paper
Cost-benefit analysis for intentional plant introductions under uncertainty

Presenter : Yokomizo H., Possingham H.P., Hulme P.E., Grice A.C., Buckley Y.M.
Title : , Biological Invasions, 14(4):839-849 (2012)
Original Paper
What are the key drivers of spread in invasive plants:dispersal, demography or landscape: and how can we use this knowledge to aid management?

Presenter : Coutts S.R., van Klinken R.D., Yokomizo H., Buckley Y.M.
Title : , Biological Invasions, 13(7):1649-1661 (2011)
Original Paper
Optimal wind patterns for biological production in shelf ecosystems driven by coastal upwelling

Presenter : Yokomizo H., Botsford L.W., Holland M.D., Lawrence C.A., Hastings A.
Title : , Theor.Ecol., 3(1):53-63 (2010)
Original Paper
Paradox of nutrient removal in coupled socio-economic and ecological dynamics for lake water pollution

Presenter : Iwasa Y, Suzuki-Ohno, Yokomizo H.
Title : , Theor.Ecol., 3(2):113-122 (2010)

View all

Evaluating the overall population-level relevance of the current ecotoxicological tests using demographic model analysis

Presenter : Tsuzuki Y., Yokomizo H.
Title : , Environmental Toxicology and Chemistry, 45(3):659-667 (2026)
Experimental test of the effects of prolonged flooding practices on animal communities in rice paddy fields

Presenter : Nakanishi K., Akanuma H., Kobayashi R., Yokomizo H., Hayashi T., Robson B., Usio N.
Title : , Agriculture, Ecosystems & Environment, 379:109369 (2025)
The scale-variant interstage flow makes biological insights possible: A response to Hinrichsen

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Takada T.
Title : , Journal of Ecology, 113(6):1458-1460 (2025)
Interstage flow matrices: Population statistic derived from matrix population models

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Kawai Y., Takada T.
Title : , Journal of Ecology, 112:1326-1338 (2024)
State-space model combining local camera data and regional administration data reveals population dynamics of wild boar

Presenter : Kasada M., Nakashima Y., Fukasawa K., Yajima G., Yokomizo H., Miyashita T.
Title : , Population Ecology, 65(1):80-92 (2023)
Assessing ecosystem vulnerability under severe uncertainty of global climate change

Presenter : Yoshikawa T., Koide D., Yokomizo H., Kim Ji Yoon, Kadoya T.
Title : , Scientific Reports, 13:5932 (2023)
Inferring causal impacts of extreme water-level drawdowns on lake water clarity using long-term monitoring data

Presenter : Nakanishi K., Yokomizo H., Fukaya K., Kadoya T., Matsuzaki S., Nishihiro J., Kohzu A., Hayashi T.
Title : , Science of The Total Environment, 838(2): (2022)
What do we want to estimate from observational datasets? Choosing appropriate statistical analysis methods based on the chemical management phase

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Title : , Integrated Environmental Assessment and Management, 18(5):1414-1422 (2022)
Quantitative analyses of misclassification rates in the hazard classification of environmental chemicals: Evaluation of procedures for deriving predicted no-effect concentrations in the Chemical Substance Control Law in Japan

Presenter : Hayashi T., Furuhama A., Yokomizo H., Yamamoto H.
Title : , Risk analysis (2022)
Spatial optimization of invasive species control informed by management practices

Presenter : Nishimoto M., Miyashita T., Yokomizo H., Matsuda H., Imazu T., Takahashi H., Hasegawa M., Fukasawa K.
Title : , Ecological Applications, 31(3):e02261 (2021)
Population model analyses of the combined effects of insecticide use and habitat degradation on the past sharp declines of the dragonfly Sympetrum frequens

Presenter : Nakanishi K., Yokomizo H., Hayashi T.
Title : , Science of The Total Environment, 787(147526): (2021)
Effects of systemic insecticides on the population dynamics of the dragonfly Sympetrum frequens in Japan: Statistical analyses using field census data from 2009 to 2016

Presenter : Nakanishi K., Ueda T., Yokomizo H., Hayashi T.
Title : , Science of The Total Environment, 703:134499 (2020)
Preservation of the value of rice paddy fields: Investigating how to prevent farmers from abandoning the fields by means of evolutionary game theory

Presenter : Lee J.H., Yamaguchi R., Yokomizo H., Nakamaru M.
Title : , Journal of Theoretical Biology, 495:110247 (2020)
The effect of intervention in nickel concentrations on benthic macroinvertebrates: A case study of statistical causal inference in ecotoxicology

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Title : , Environmental Pollution, 265(115059): (2020)
Evaluation of interregional consistency in associations between neonicotinoid insecticides and functions of benthic invertebrate communities in rivers in urban rice-paddy areas

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Title : , Science of the Total Environment, 743(140627): (2020)
Investigating effect of climate warming on the population declines of Sympetrum frequens during the 1990s in three regions in Japan

Presenter : Nakanishi K., Koide D., Yokomizo H., Kadoya T., Hayashi T.
Title : , Scientific Reports, 10(12719): (2020)
Much ado about interaction: A combination of linear processes yields non-linear toxic effects in chemical mixtures

Presenter : Kamo M., Iwasaki Y., Yokomizo H.
Title : , Chemosphere, 219:89-94 (2019)
Estimating range expansion of wildlife in heterogeneous landscapes: A spatially explicit state‐space matrix model coupled with an improved numerical integration technique

Presenter : Osada Y., Kuriyama T., Asada M., Yokomizo H., Miyashita T.
Title : , Ecology and Evolution, 9:318-327 (2019)
Broad-scale effect of herbicides on functional properties in benthic invertebrate communities of rivers: An integrated analysis of biomonitoring and exposure evaluations

Presenter : Misaki T., Yokomizo H., Tanaka Y.
Title : , Ecotoxicology and Environmental Safety, 171:173-180 (2019)
Associations of community structure and functions of benthic invertebrates with nickel concentrations: analyses from field surveys

Presenter : Takeshita K., Misaki T., Hayashi T., Yokomizo H.
Title : , Environmental Toxicology and Chemistry, 38(8):1728-1737 (2019)
Evaluation of the ecological niche model approach in spatial conservation prioritization

Presenter : Ishihama F., Takenaka A., Yokomizo H., Kadoya T.
Title : , PLOS ONE (2019)
Assessment of Instructions on Protection Against Food Contaminated with Radiocesium in Japan in 2011

Presenter : Seto M., Uriu K., Kawaguchi I., Yokomizo H.
Title : , Risk Analysis, 38(6):1154-1168 (2018)
Were the sharp declines of dragonfly populations in the 1990s in Japan caused by fipronil and imidacloprid? An analysis of Hill’s causality for the case of Sympetrum frequens

Presenter : Nakanishi K., Yokomizo H., Hayashi T.
Title : , Environmental Science and Pollution Research, 25(35):35352-35364 (2018)
Relative robustness of NOEC and ECx against large uncertainties in data

Presenter : Tanaka Y., Nakamura K., Yokomizo H.
Title : , PLOS ONE, 13(11):e0206901 (2018)
The influence of time since introduction on the population growth of introduced species and the consequences for management

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Title : , Population Ecology, 59(2):89-97 (2017)
ECOLOGICAL RISK ASSESSMENT OF HERBICIDES IN JAPAN: INTEGRATING SPATIOTEMPORAL VARIATION IN EXPOSURE AND EFFECTS USING A MULTIMEDIA MODEL AND ALGAL DENSITY DYNAMICS MODELS

Presenter : Hayashi TI., Imaizumi Y., Yokomizo H., Tatarazako N., Suzuki N.
Title : , Environmental Toxicology and Chemistry, 35(1):233-240 (2016)
Efficient management for the Hokkaido population of sika deer Cervus nippon in Japan: accounting for migration and management cost

Presenter : Ijima H., Fujimaki A., Ohta U., Yamamura K., Yokomizo H., Uno H., Matsuda H.
Title : , Population Ecology, 57:397-408 (2015)
Explanation of non-additive effects in mixtures of similar mode of action chemicals

Presenter : Kamo M., Yokomizo H.
Title : , Toxicology, 335:20-26 (2015)
Exploring the drivers of wildlife population dynamics from insufficient data by Bayesian model averaging

Presenter : Osada Y., Kuriyama T., Asada M., Yokomizo H., Miyashita T.
Title : , Population Ecology, 57:485-493 (2015)
Meta-models as a straight forward approach to the sensitivity analysis of complex models.

Presenter : Coutts S.R., Yokomizo H.
Title : , Population Ecology, 56(1):7-19 (2014)
Linking ecosystem and socioeconomic dynamics for the effective management of agricultural landscapes

Presenter : Yokomizo H.
Title : , Social-Ecological Restoration in Paddy-Dominated Landscapes, 283-294 (2014)
The behavior of multiple independent managers and ecological traits interact to determine prevalence of weeds

Presenter : Coutts S.R., Yokomizo H., Buckley Y.M.
Title : , Ecological Applications, 23(3):523-536 (2013)
Setting the most robust effluent level under severe uncertainty: Application of information-gap decision theory to chemical management

Presenter : Yokomizo H., naito W., Tanaka Y., kamo M.
Title : , Chemosphere, 93(10):2224-2229 (2013)
Cost-benefit analysis for intentional plant introductions under uncertainty

Presenter : Yokomizo H., Possingham H.P., Hulme P.E., Grice A.C., Buckley Y.M.
Title : , Biological Invasions, 14(4):839-849 (2012)
What are the key drivers of spread in invasive plants:dispersal, demography or landscape: and how can we use this knowledge to aid management?

Presenter : Coutts S.R., van Klinken R.D., Yokomizo H., Buckley Y.M.
Title : , Biological Invasions, 13(7):1649-1661 (2011)
Optimal wind patterns for biological production in shelf ecosystems driven by coastal upwelling

Presenter : Yokomizo H., Botsford L.W., Holland M.D., Lawrence C.A., Hastings A.
Title : , Theor.Ecol., 3(1):53-63 (2010)
Paradox of nutrient removal in coupled socio-economic and ecological dynamics for lake water pollution

Presenter : Iwasa Y, Suzuki-Ohno, Yokomizo H.
Title : , Theor.Ecol., 3(2):113-122 (2010)

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Decision science for effective management of populations subject to stochasticity and imperfect knowledge.

Presenter : Yokomizo H., Coutts S.R., Possingham H.P.
Title : , Population Ecology, 56(1):41-53 (2014)
Making the most of mathematical models for effective environmental management.

Presenter : Yokomizo H., Takimoto G.
Title : , Population Ecology, 56(1):3-5 (2014)

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Chlorantraniliprole application differentially affects adult emergence of Sympetrum dragonflies in rice paddy fields.

Presenter : Nakanishi K., Usio N., Yokomizo H., Takashima T., Hayashi T.
Title : , Paddy and Water Environment (2021)
Comments to Persistent problems in the construction of matrix population models

Presenter : Che-Castaldo J., Jones O.R., Kendall B.E., Burns J.H., Childs D.Z., Ezard T.H.G., Hernandez-Yanez H., Hodgson D.J., Jongejans E., Knight T., Merow C., Ramula S., Stott I., Vindenes Y., Yokomizo H., Salguero Gomez R.
Title : , Ecological Modelling, 416:108913 (2020)
Population Ecology 2025 Editorial

Presenter : Yokomizo H.
Title : , Population Ecology, 67(1):3-5 (2025)
Population Ecology 2026 Editorial

Presenter : Yokomizo H.
Title : , Population Ecology (2026)
Announcement of the Sixth Population Ecology Awards

Presenter : Kasuya E., Yokomizo H.
Title : , Population Ecology, 67(4):389-390 (2025)

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Research Result (Presentation)

all
Research Presentation
Research Lecture

Research Lecture
Understanding Ecological Processes:From Confounding Effects to Demographic Flows

Presenter : Yokomizo H.
Name of Society : The Department of Biological Sciences Research Seminar Series (2026)
Name of Proceedings : Abstracts
Research Presentation
Flow-based demography reveals distinct strategies of non-native plant species

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T.
Name of Society : 10th Evolutionary Demography Conference (2025)
Name of Proceedings : Abstracts, 42
Research Presentation
Ecological Impacts on Trillium camschatcense via exactLTRE and interstage flows

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Hernandez C., Takada T.
Name of Society : 第41回個体群生態学会大会 (2025)
Name of Proceedings : Abstracts
Research Presentation
Can peer pressure or social pressure on collaborative activity reduce rice-field abandonment?

Presenter : Ohtsuki A., Yokomizo H., Nakamaru M.
Name of Society : ACMB-JSMB2025 (2025)
Name of Proceedings : -
Research Lecture
Environmental risk assessment of chemical mixtures considering their mode of action, structure, and exposure profile

Presenter : Yamamoto H., Watanabe H., Oda Y., Yamagishi T., Hiki K., Imaizumi Y., Yokomizo H., Ozawa F., Ohno K.
Name of Society : The 52nd Annual Meeting of the Japan Society of Toxicology (2025)
Name of Proceedings : The Journalof Toxicological Sciences, 50(Supplement 1):S42
Research Presentation
Comparing native and non-native species with interstage flow and reproductive-value flow matrices

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T.
Name of Society : The 11th EAFES International Congress (2025)
Name of Proceedings : Abstracts, 147
Research Presentation
How are invasive species different? Ecological characteristics of plants revealed by interstage flows and reproductive-value flows

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T.
Name of Society : ACMBーJSMB2025 (2025)
Name of Proceedings : -
Research Presentation
British Ecological Society

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T
Name of Society : Annual Meeting 2025 (2025)
Name of Proceedings : -
Research Presentation
Integrating life table response experiments with interstage flow to assess environmental impacts on Trillium camschatcense

Presenter : Yokomizo H.
Name of Society : シンポジウム「個体群管理：その理論、応用と予測」 (2025)
Name of Proceedings : Abstracts
Research Presentation
Comparative demographic analysis using new population statistics: inter-stage flow matrix and reproductive-value flow matrix.

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Takada T.
Name of Society : The 9th annual meeting of Evolutionary Demography Society (2024)
Name of Proceedings : -
Research Presentation
Exploring the causal relationship between insecticide use and sharp population declines of the dragonfly Sympetrum frequens in Japan

Presenter : Nakanishi K., Yokomizo H., Hayashi T.
Name of Society : XXVII International Congress of Entomology (ICE2024) (2024)
Name of Proceedings : Abstracts
Research Presentation
A thought experiment on three metrics of matrix population models.

Presenter : Takada T., Yokomizo H.
Name of Society : The European Conference on Mathematical and Theoretical Biology (2024)
Name of Proceedings : Abstracts
Research Presentation
Assessing ecological impacts on Trillium camschatcense using life table response experiments and interstage flow matrix

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : Annual Meeting of the Canadian Society for Ecology and Evolution (2024)
Name of Proceedings : Abstracts
Research Lecture
Population statistics derived from matrix population models: Interstage flow matrix and reproductive-value flow matrix

Presenter : Yokomizo H.
Name of Society : Joint Seminar at Salguero-Gomez lab Davis lab, University of Oxford (2024)
Name of Proceedings : -
Research Presentation
Innovative ecological impact assessment using life-table response experiments and interstage flow matrices: Effects of habitat fragmentation and temporal environmental variation on Trillium camschatcense

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : British Ecological Society Annual Meeting 2024 (2024)
Name of Proceedings : Abstracts, 871
Research Presentation
Innovative ecological impact assessment using life-table response experiments and interstage flow matrices: Ecotoxicity of phthalate esters with different alkyl chain length

Presenter : Yokomizo H., Tsuzuki Y., Kamo M., Takada T., Oda Y., Watanabe H., Yamamoto H.
Name of Society : The Joint Meeting of the Annual Meeting of the Society of Population Ecology and Taiwan-Japan Ecology Workshop 2024 (2024)
Name of Proceedings : Abstracts, 58-59
Research Lecture
Interstage flow and reproductive-value flow: Population statistics derived from matrix population models

Presenter : Yokomizo H.
Name of Society : Seminar at School of Biological Sciences, University of Aberdeen (2024)
Name of Proceedings : -
Research Presentation
Population-level relevance missing from the current ecotoxicological test standards.

Presenter : Tsuzuki Y., Yokomizo H.
Name of Society : The Joint Meeting of the Annual Meeting of the Society of Population Ecology and Taiwan-Japan Ecology Workshop 2024 (2024)
Name of Proceedings : Abstracts, 42
Research Presentation
Novel ecological impact assessment: Effect of habitat fragmentation and environmental variation on Trillium camschatcense

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : Japanese Society of Mathematical Biology 2023 (2023)
Name of Proceedings : Abstracts
Research Presentation
A novel ecological impact assessment by using life-table response experiment and interstage flow matrices: Effects of habitat fragmentation and temporal environmental variation on Trillium camschatcense

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : Evolutionary demography society 8th annual meeting (2023)
Name of Proceedings : -
Research Presentation
Improving watershed adaptability bunder large uncertainty of climate change: a case study on the conservation of the Japanese freshwater crab (Geothelphusa dehaani) in the Takasaki river watershed,Japan

Presenter : Yokomizo H., Kim J.Y. , Nishihiro J., Kadoya T.
Name of Society : The 10th Annual Conference of the Society for Decision Making Under Deep Uncertainty (DMDU) (2023)
Name of Proceedings : Abstracts, 31
Research Lecture
Population model analyses of the combined effects of insecticide use and habitat degradation on the past sharp declines of the dragonfly Sympetrum frequens

Presenter : Hayashi T., Nakanishi K., Yokomizo H.
Name of Society : K-INET International Symposium 2022 (2022)
Name of Proceedings : Abstracts, 33
Research Presentation
A national-scale assessment of associations between benthic macroinvertebrate communities and nickel concentrations in Japan

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 第68回日本生態学会大会 (2021)
Name of Proceedings : Abstracts
Research Presentation
Inferring the potential of water-level operations for ecosystem management in lakes: a theoretical approach

Presenter : Yokomizo H., Kadoya T.
Name of Society : Joint International Symposium: To the New Stage of Collaboration (2021)
Name of Proceedings : Abstracts
Research Presentation
Inter-stage flow and reproductive value flow matrices as new population statistics for comparative plant demography

Presenter : Yokomizo H.
Name of Society : The 67th Annual Meeting of the Ecological Society of Japan (2020)
Name of Proceedings : Abstracts
Research Presentation
Do neonicotinoids associate with functional diversity of benthic macroinvertebrates?: Analyses of broad-scale biomonitoring and exposure datasets

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 日本生態学会第67回全国大会 (2020)
Name of Proceedings : Abstracts
Research Presentation
Associations between neonicotinoid insecticides and functional-feeding-group abundances of benthic invertebrate communities in rivers in urban rice-paddy areas

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 環境DNA学会第3回大会第36回個体群生態学会大会合同大会 (2020)
Name of Proceedings : Abstracts
Research Lecture
Negative effects of insecticides on the population dynamics of the dragonfly Sympetrum frequens in rice fields: A statistical analysis using field census data in Hokuriku region, Japan

Presenter : Nakanishi K., Uéda T., Yokomizo H., Hayashi T.
Name of Society : Joint International Symposium: Challenging the Research Development and Collaboration Through Online Discussion (2020)
Name of Proceedings : Abstracts
Research Presentation
Estimation of Effects of Intervention in Heavy Metal Concentrations on Aquatic Insects in the Field

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 5th NIES International Forum (2020)
Name of Proceedings : Abstracts, 67
Research Presentation
Inter stage flow matrix: a new population statistic in ecological risk assessment

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Kawai Y., Takada T.
Name of Society : 第25回（2019年）日本環境毒性学会研究発表会 (2019)
Name of Proceedings : Abstract, 72
Research Presentation
Inter-stage flow matrix as a population statistic for comparative plant demography

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Kawai Y., Takada T.
Name of Society : 第35回個体群生態学会大会 (2019)
Name of Proceedings : Abstracts
Research Lecture
A new population statistic for comparative plant demography - Inter-stage flow matrix

Presenter : Yokomizo H.
Name of Society : CER seminars special (2019)
Name of Proceedings : Abstracts
Research Presentation
Causal inference in ecological risk assessment of heavy metals for benthic invertebrate community in rivers

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : SETAC Europe 29th Annual Meeting (2019)
Name of Proceedings : Abstracts, 289
Research Presentation
Making robust decisions in the face of uncertainty in ecological risk management of zinc in Japanese surface waters

Presenter : Yokomizo H., Naito W., Tanaka Y., Hayashi T., Kamo M.
Name of Society : SETAC Europe 29th Annual Meeting (2019)
Name of Proceedings : Abstracts, 328
Research Presentation
The (mis) assessment of ecological risk for nickel based on the conventional statistical approach in ecotoxicology: the importance of causal inference

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 日本生態学会第66回全国大会 (2019)
Name of Proceedings : Abstracts
Research Presentation
Comparative demography among four functional groups based on elasticity and inter-stage flows of individuals

Presenter : Yokomizo H., Fukaya K., Lambrinos J., Kawai Y., Takada T.
Name of Society : Sixth Annual Meeting of the Evolutionary Demography Society (2019)
Name of Proceedings : -
Research Presentation
Optimal management strategies to control mammal populations incorporating behaviorally mediated indirect effect

Presenter : Yokomizo H., Nakashima Y., Osada Y., Kagawa K., Kuriyama T., Kasada M., Suzuki M., Yajima G., Ishizuka N., Asada M., Yokoyama Y., Miyashita T.
Name of Society : 2018 Annual Meeting of the Society for Mathematical Biology & the Japanese Society for Mathematical Biology (2018)
Name of Proceedings : Abstracts, 21
Research Presentation
Assessment of instructions on protection against food contaminated with radiocesium in Japan in 2011

Presenter : Seto M., Uriu K., Kawaguchi I., Yokomizo H.
Name of Society : The Society for Risk Analysis, Asia Conference 2018 (2018)
Name of Proceedings : Abstracts
Research Presentation
Analysis of flow matrices describing inter-stage flows of individuals using randomly generated population matrices

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Takada T,
Name of Society : 第34回個体群生態学会 (2018)
Name of Proceedings : Abstracts, 34
Research Presentation
Flow matrices describing inter-stage flows of individuals: Application to comparative demographic analysis of introduced and native plant populations

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.
Name of Society : evodemo2018 : Evolutionary demography society 5th annual meeting (2018)
Name of Proceedings : Abstracts
Research Presentation
Making most robust decisions in ecological risk management of zinc in Japanese surface waters under severe uncertainty

Presenter : Yokomizo H.
Name of Society : 3rd International Forum on Sustainable Future in Asia (2018)
Name of Proceedings : Abstracts, 59
Research Presentation
Combination of Linear Process Yields Non-linear Toxic Effect in Chemical Mixtures

Presenter : kamo M., Yokomizo H.
Name of Society : SETAC North America Focused Topic Meeting Risk Assessment of Chemical Mixtures: From Scientific Evidence to Environmental Regulation (2017)
Name of Proceedings : Abstracts, 17
Research Presentation
The influence of time since introduction on the population growth of introduced species and the consequences for management

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.
Name of Society : 102nd Annual meeting of Ecological Society of America (2017)
Name of Proceedings : Abstracts
Research Lecture
The influence of time since introduction on the population growth of introduced species and the optimal management

Presenter : Yokomizo H.
Name of Society : 奈良女大域情報セミナー (2017)
Name of Proceedings : -
Research Presentation
The influence of time since introduction on the demography of invasive species and the consequences for management.

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Name of Society : The 64th annual meeting of the Ecological Society of Japan (2017)
Name of Proceedings : Abstracts
Research Presentation
The influence of time since introduction on the population growth of introduced species and effective management measures

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Name of Society : The 2017 (27th) annual meeting of the Japanese Society for Mathematical Biology (2017)
Name of Proceedings : Abstracts, 138
Research Presentation
Comparative demography of invasive and native plant populations based on inter-stage flows of individuals

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Name of Society : The 32nd Annual Meeting of the Society of Population Ecology (2017)
Name of Proceedings : Abstracts
Research Presentation
Explanation of non-additive effects in mixtures of similar mode of action chemicals

Presenter : kamo M., Yokomizo H.
Name of Society : The 2016 (26th) annual meeting of the Japanese Society for Mathematical Biology (2016)
Name of Proceedings : Abstracts, 212
Research Presentation
Cost-benefit analysis of food safety management:The case of radioactive contaminant

Presenter : Seto M., Uriu K., Kawaguchi I., Yokomizo H.
Name of Society : The 2016 (26th) annual meeting of the Japanese Society for Mathematical Biology (2016)
Name of Proceedings : Abstracts, 242
Research Presentation
The influence of time since introduction on the population growth of invasive species and the consequences for management

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.
Name of Society : The 32nd Annual Meeting of the Society of Population Ecology (2016)
Name of Proceedings : Meeting Program & Abstracts, 20
Research Presentation
Testing the influence of time since introduction on population growth and optimal management

Presenter : Yokomizo H., Takada T, Fukaya K., Lambrinos J.
Name of Society : 4th Annual meeting of The Evolutionary Demography Society (2016)
Name of Proceedings : Abstracts
Research Presentation
Optimal management strategies to control deer populations in Chiba prefecture using a spatially explicit model

Presenter : Yokomizo H.
Name of Society : Biological Conservation Planning under Uncertainties (2015)
Name of Proceedings : -
Research Presentation
Selection of conservation areas under severe uncertainty of population dynamics in future

Presenter : Yokomizo H., Kadoya T.
Name of Society : 99th Ecological Society of America Annual Meeting (2014)
Name of Proceedings : Abstracts
Research Lecture
Coupled socio-economic and ecological dynamics for management of agricultural landscapes and revitalization of local economy

Presenter : Yokomizo H.
Name of Society : Seminar in celebration of Prof. Alan Hastings' career (2014)
Name of Proceedings : -
Research Presentation
Mathematical tools in decision-making for effective environmental management subject to stochasticity and imperfect knowledge

Presenter : Yokomizo H.
Name of Society : Joint Annual Meeting of the Japanese Society for Mathematical Biology and the Society for Mathematical Biology, 2014 (JSMB/SMB 2014 Osaka) (2014)
Name of Proceedings : Abstracts
Research Presentation
Decision science for effective management of populations subject to stochasticity and imperfect knowledge

Presenter : Yokomizo H.
Name of Society : Symposium on Kanto Branch of Ecological Society of Japan (2014)
Name of Proceedings : -
Research Presentation
Mathematical models for effective management of populations subject to uncertainty

Presenter : Yokomizo H.
Name of Society : the 30th Annual Meeting of the Society of Population Ecology (2014)
Name of Proceedings : Abstracts, 12
Research Presentation
When do species distribution models work in conservation prioritization?

Presenter : Ishihama F., Takenaka A., Yokomizo H., Kadoya T.
Name of Society : INTECOL 2013 (2013)
Name of Proceedings : -
Research Presentation
Selection of conservation areas under severe uncertainty of population dynamics in future

Presenter : Yokomizo H., Kadoya T.
Name of Society : 26th International Congress for Conservation Biology (2013)
Name of Proceedings : Abstracts, 73
Research Presentation
Coupled socio-economic and ecological dynamics for management of agricultural landscapes in Sado Island

Presenter : Yokomizo H., Tsuge T., Nakamura S., Ujiie K., Usio N.
Name of Society : The 61st Annual Meeting of Ecological Society of Japan (ESJ61) (2013)
Name of Proceedings : -
Research Presentation
Coupled socio-economic and ecological dynamics for management of agricultural landscapes in Sado Island, Japan

Presenter : Yokomizo H.
Name of Society : Mathematical Biosciences Institute- Workshop 3: Sustainable Management of Living Natural Resources (2013)
Name of Proceedings : Abstracts
Research Presentation
Making most robust ecological risk management of zinc in Japanese surface waters under severe uncertainty

Presenter : Yokomizo H., Naito W., Tanaka Y., Kamo M.
Name of Society : SETAC Asia/Pacufuc 2012 (2012)
Name of Proceedings : Abstracts, 132
Research Presentation
Setting most robust effluent level against severe uncertainty: application of information-gap decision theory to chemical management

Presenter : Yokomizo H.
Name of Society : 6th SETAC World Congress/SETAC Europe 22nd Annual Meeting (2012)
Name of Proceedings : Abstracts book of 6th SETAC World Congress/SETAC Europe 22nd Annual Meeting, 274
Research Presentation
Making most robust decisions in ecological risk management of chemicals under severe uncertainty

Presenter : Yokomizo H.
Name of Society : Joint Meeting of The 59th Annual Meeting of ESJ and The 5th EAFES International Congress (2012)
Name of Proceedings : ESJ59/EAFES5 Abstract
Research Presentation
Making most robust ecological risk management of zinc in Japanese surface waters under sever uncertainty

Presenter : Yokomizo H., Naito W., Tanaka Y., Kamo M.
Name of Society : 28TH ANNUAL MEETING, SOCIETY OF POPULATION ECOLOGY (2012)
Name of Proceedings : Abstracts, 13
Research Presentation
Cost-benefit analysis for intentional plant introductions under uncertainty

Presenter : Yokomizo H., Possingham H.P., Hulme P.E., Grice A.C., Buckley Y.M.
Name of Society : 25th International Congress for Conservation Biology (2011)
Name of Proceedings : Abstracts of 25th International Congress for Conservation Biology, 182
Research Presentation
Application of information-gap decision theory to ecological risk assessment and management of chemicals

Presenter : Yokomizo H., Naito W., Kamo M.
Name of Society : SETAC North Am.31st Annu.Meet. (2010)
Name of Proceedings : Abstracts, 332
Research Presentation
The use of modelling tools for invasive plant management

Presenter : Yokomizo H.
Name of Society : 10th Int.Congr.Ecol. (2009)
Research Presentation
Economic weed risk assessment: when should we introduce plants of commercial value?

Presenter : Yokomizo H., Hulme P.E., Possingham H.P., Grice A.C., Buckley Y.M.
Name of Society : 10th Int.Congr.Ecol. (2009)

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Flow-based demography reveals distinct strategies of non-native plant species

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T.
Name of Society : 10th Evolutionary Demography Conference (2025)
Name of Proceedings : Abstracts, 42
Ecological Impacts on Trillium camschatcense via exactLTRE and interstage flows

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Hernandez C., Takada T.
Name of Society : 第41回個体群生態学会大会 (2025)
Name of Proceedings : Abstracts
Can peer pressure or social pressure on collaborative activity reduce rice-field abandonment?

Presenter : Ohtsuki A., Yokomizo H., Nakamaru M.
Name of Society : ACMB-JSMB2025 (2025)
Name of Proceedings : -
British Ecological Society

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T
Name of Society : Annual Meeting 2025 (2025)
Name of Proceedings : -
Integrating life table response experiments with interstage flow to assess environmental impacts on Trillium camschatcense

Presenter : Yokomizo H.
Name of Society : シンポジウム「個体群管理：その理論、応用と予測」 (2025)
Name of Proceedings : Abstracts
Comparative demographic analysis using new population statistics: inter-stage flow matrix and reproductive-value flow matrix.

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Takada T.
Name of Society : The 9th annual meeting of Evolutionary Demography Society (2024)
Name of Proceedings : -
Assessing ecological impacts on Trillium camschatcense using life table response experiments and interstage flow matrix

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : Annual Meeting of the Canadian Society for Ecology and Evolution (2024)
Name of Proceedings : Abstracts
Innovative ecological impact assessment using life-table response experiments and interstage flow matrices: Effects of habitat fragmentation and temporal environmental variation on Trillium camschatcense

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : British Ecological Society Annual Meeting 2024 (2024)
Name of Proceedings : Abstracts, 871
Improving watershed adaptability bunder large uncertainty of climate change: a case study on the conservation of the Japanese freshwater crab (Geothelphusa dehaani) in the Takasaki river watershed,Japan

Presenter : Yokomizo H., Kim J.Y. , Nishihiro J., Kadoya T.
Name of Society : The 10th Annual Conference of the Society for Decision Making Under Deep Uncertainty (DMDU) (2023)
Name of Proceedings : Abstracts, 31
A national-scale assessment of associations between benthic macroinvertebrate communities and nickel concentrations in Japan

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 第68回日本生態学会大会 (2021)
Name of Proceedings : Abstracts
Inferring the potential of water-level operations for ecosystem management in lakes: a theoretical approach

Presenter : Yokomizo H., Kadoya T.
Name of Society : Joint International Symposium: To the New Stage of Collaboration (2021)
Name of Proceedings : Abstracts
Inter-stage flow and reproductive value flow matrices as new population statistics for comparative plant demography

Presenter : Yokomizo H.
Name of Society : The 67th Annual Meeting of the Ecological Society of Japan (2020)
Name of Proceedings : Abstracts
Do neonicotinoids associate with functional diversity of benthic macroinvertebrates?: Analyses of broad-scale biomonitoring and exposure datasets

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 日本生態学会第67回全国大会 (2020)
Name of Proceedings : Abstracts
The (mis) assessment of ecological risk for nickel based on the conventional statistical approach in ecotoxicology: the importance of causal inference

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 日本生態学会第66回全国大会 (2019)
Name of Proceedings : Abstracts
Comparative demography among four functional groups based on elasticity and inter-stage flows of individuals

Presenter : Yokomizo H., Fukaya K., Lambrinos J., Kawai Y., Takada T.
Name of Society : Sixth Annual Meeting of the Evolutionary Demography Society (2019)
Name of Proceedings : -
Optimal management strategies to control mammal populations incorporating behaviorally mediated indirect effect

Presenter : Yokomizo H., Nakashima Y., Osada Y., Kagawa K., Kuriyama T., Kasada M., Suzuki M., Yajima G., Ishizuka N., Asada M., Yokoyama Y., Miyashita T.
Name of Society : 2018 Annual Meeting of the Society for Mathematical Biology & the Japanese Society for Mathematical Biology (2018)
Name of Proceedings : Abstracts, 21
Assessment of instructions on protection against food contaminated with radiocesium in Japan in 2011

Presenter : Seto M., Uriu K., Kawaguchi I., Yokomizo H.
Name of Society : The Society for Risk Analysis, Asia Conference 2018 (2018)
Name of Proceedings : Abstracts
Flow matrices describing inter-stage flows of individuals: Application to comparative demographic analysis of introduced and native plant populations

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.
Name of Society : evodemo2018 : Evolutionary demography society 5th annual meeting (2018)
Name of Proceedings : Abstracts
The influence of time since introduction on the population growth of introduced species and effective management measures

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Name of Society : The 2017 (27th) annual meeting of the Japanese Society for Mathematical Biology (2017)
Name of Proceedings : Abstracts, 138
The influence of time since introduction on the population growth of invasive species and the consequences for management

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.
Name of Society : The 32nd Annual Meeting of the Society of Population Ecology (2016)
Name of Proceedings : Meeting Program & Abstracts, 20
Testing the influence of time since introduction on population growth and optimal management

Presenter : Yokomizo H., Takada T, Fukaya K., Lambrinos J.
Name of Society : 4th Annual meeting of The Evolutionary Demography Society (2016)
Name of Proceedings : Abstracts
Optimal management strategies to control deer populations in Chiba prefecture using a spatially explicit model

Presenter : Yokomizo H.
Name of Society : Biological Conservation Planning under Uncertainties (2015)
Name of Proceedings : -
Selection of conservation areas under severe uncertainty of population dynamics in future

Presenter : Yokomizo H., Kadoya T.
Name of Society : 99th Ecological Society of America Annual Meeting (2014)
Name of Proceedings : Abstracts
Mathematical tools in decision-making for effective environmental management subject to stochasticity and imperfect knowledge

Presenter : Yokomizo H.
Name of Society : Joint Annual Meeting of the Japanese Society for Mathematical Biology and the Society for Mathematical Biology, 2014 (JSMB/SMB 2014 Osaka) (2014)
Name of Proceedings : Abstracts
Decision science for effective management of populations subject to stochasticity and imperfect knowledge

Presenter : Yokomizo H.
Name of Society : Symposium on Kanto Branch of Ecological Society of Japan (2014)
Name of Proceedings : -
Mathematical models for effective management of populations subject to uncertainty

Presenter : Yokomizo H.
Name of Society : the 30th Annual Meeting of the Society of Population Ecology (2014)
Name of Proceedings : Abstracts, 12
When do species distribution models work in conservation prioritization?

Presenter : Ishihama F., Takenaka A., Yokomizo H., Kadoya T.
Name of Society : INTECOL 2013 (2013)
Name of Proceedings : -
Selection of conservation areas under severe uncertainty of population dynamics in future

Presenter : Yokomizo H., Kadoya T.
Name of Society : 26th International Congress for Conservation Biology (2013)
Name of Proceedings : Abstracts, 73
Coupled socio-economic and ecological dynamics for management of agricultural landscapes in Sado Island

Presenter : Yokomizo H., Tsuge T., Nakamura S., Ujiie K., Usio N.
Name of Society : The 61st Annual Meeting of Ecological Society of Japan (ESJ61) (2013)
Name of Proceedings : -
Making most robust ecological risk management of zinc in Japanese surface waters under severe uncertainty

Presenter : Yokomizo H., Naito W., Tanaka Y., Kamo M.
Name of Society : SETAC Asia/Pacufuc 2012 (2012)
Name of Proceedings : Abstracts, 132
Making most robust decisions in ecological risk management of chemicals under severe uncertainty

Presenter : Yokomizo H.
Name of Society : Joint Meeting of The 59th Annual Meeting of ESJ and The 5th EAFES International Congress (2012)
Name of Proceedings : ESJ59/EAFES5 Abstract
Making most robust ecological risk management of zinc in Japanese surface waters under sever uncertainty

Presenter : Yokomizo H., Naito W., Tanaka Y., Kamo M.
Name of Society : 28TH ANNUAL MEETING, SOCIETY OF POPULATION ECOLOGY (2012)
Name of Proceedings : Abstracts, 13
Cost-benefit analysis for intentional plant introductions under uncertainty

Presenter : Yokomizo H., Possingham H.P., Hulme P.E., Grice A.C., Buckley Y.M.
Name of Society : 25th International Congress for Conservation Biology (2011)
Name of Proceedings : Abstracts of 25th International Congress for Conservation Biology, 182
The use of modelling tools for invasive plant management

Presenter : Yokomizo H.
Name of Society : 10th Int.Congr.Ecol. (2009)
Economic weed risk assessment: when should we introduce plants of commercial value?

Presenter : Yokomizo H., Hulme P.E., Possingham H.P., Grice A.C., Buckley Y.M.
Name of Society : 10th Int.Congr.Ecol. (2009)
Comparing native and non-native species with interstage flow and reproductive-value flow matrices

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T.
Name of Society : The 11th EAFES International Congress (2025)
Name of Proceedings : Abstracts, 147
How are invasive species different? Ecological characteristics of plants revealed by interstage flows and reproductive-value flows

Presenter : Yokomizo H., Lambrinos J.G., Fukaya K., Takada T.
Name of Society : ACMBーJSMB2025 (2025)
Name of Proceedings : -
Exploring the causal relationship between insecticide use and sharp population declines of the dragonfly Sympetrum frequens in Japan

Presenter : Nakanishi K., Yokomizo H., Hayashi T.
Name of Society : XXVII International Congress of Entomology (ICE2024) (2024)
Name of Proceedings : Abstracts
A thought experiment on three metrics of matrix population models.

Presenter : Takada T., Yokomizo H.
Name of Society : The European Conference on Mathematical and Theoretical Biology (2024)
Name of Proceedings : Abstracts
Innovative ecological impact assessment using life-table response experiments and interstage flow matrices: Ecotoxicity of phthalate esters with different alkyl chain length

Presenter : Yokomizo H., Tsuzuki Y., Kamo M., Takada T., Oda Y., Watanabe H., Yamamoto H.
Name of Society : The Joint Meeting of the Annual Meeting of the Society of Population Ecology and Taiwan-Japan Ecology Workshop 2024 (2024)
Name of Proceedings : Abstracts, 58-59
Population-level relevance missing from the current ecotoxicological test standards.

Presenter : Tsuzuki Y., Yokomizo H.
Name of Society : The Joint Meeting of the Annual Meeting of the Society of Population Ecology and Taiwan-Japan Ecology Workshop 2024 (2024)
Name of Proceedings : Abstracts, 42
Novel ecological impact assessment: Effect of habitat fragmentation and environmental variation on Trillium camschatcense

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : Japanese Society of Mathematical Biology 2023 (2023)
Name of Proceedings : Abstracts
A novel ecological impact assessment by using life-table response experiment and interstage flow matrices: Effects of habitat fragmentation and temporal environmental variation on Trillium camschatcense

Presenter : Yokomizo H., Tomimatsu H., Kamo M., Takada T.
Name of Society : Evolutionary demography society 8th annual meeting (2023)
Name of Proceedings : -
Associations between neonicotinoid insecticides and functional-feeding-group abundances of benthic invertebrate communities in rivers in urban rice-paddy areas

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 環境DNA学会第3回大会第36回個体群生態学会大会合同大会 (2020)
Name of Proceedings : Abstracts
Estimation of Effects of Intervention in Heavy Metal Concentrations on Aquatic Insects in the Field

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : 5th NIES International Forum (2020)
Name of Proceedings : Abstracts, 67
Inter stage flow matrix: a new population statistic in ecological risk assessment

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Kawai Y., Takada T.
Name of Society : 第25回（2019年）日本環境毒性学会研究発表会 (2019)
Name of Proceedings : Abstract, 72
Inter-stage flow matrix as a population statistic for comparative plant demography

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Kawai Y., Takada T.
Name of Society : 第35回個体群生態学会大会 (2019)
Name of Proceedings : Abstracts
Causal inference in ecological risk assessment of heavy metals for benthic invertebrate community in rivers

Presenter : Takeshita K., Hayashi T., Yokomizo H.
Name of Society : SETAC Europe 29th Annual Meeting (2019)
Name of Proceedings : Abstracts, 289
Making robust decisions in the face of uncertainty in ecological risk management of zinc in Japanese surface waters

Presenter : Yokomizo H., Naito W., Tanaka Y., Hayashi T., Kamo M.
Name of Society : SETAC Europe 29th Annual Meeting (2019)
Name of Proceedings : Abstracts, 328
Analysis of flow matrices describing inter-stage flows of individuals using randomly generated population matrices

Presenter : Yokomizo H., Fukaya K., Lambrinos J.G., Takada T,
Name of Society : 第34回個体群生態学会 (2018)
Name of Proceedings : Abstracts, 34
Making most robust decisions in ecological risk management of zinc in Japanese surface waters under severe uncertainty

Presenter : Yokomizo H.
Name of Society : 3rd International Forum on Sustainable Future in Asia (2018)
Name of Proceedings : Abstracts, 59
Combination of Linear Process Yields Non-linear Toxic Effect in Chemical Mixtures

Presenter : kamo M., Yokomizo H.
Name of Society : SETAC North America Focused Topic Meeting Risk Assessment of Chemical Mixtures: From Scientific Evidence to Environmental Regulation (2017)
Name of Proceedings : Abstracts, 17
The influence of time since introduction on the population growth of introduced species and the consequences for management

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.
Name of Society : 102nd Annual meeting of Ecological Society of America (2017)
Name of Proceedings : Abstracts
The influence of time since introduction on the demography of invasive species and the consequences for management.

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Name of Society : The 64th annual meeting of the Ecological Society of Japan (2017)
Name of Proceedings : Abstracts
Comparative demography of invasive and native plant populations based on inter-stage flows of individuals

Presenter : Yokomizo H., Takada T., Fukaya K., Lambrinos J.G.
Name of Society : The 32nd Annual Meeting of the Society of Population Ecology (2017)
Name of Proceedings : Abstracts
Explanation of non-additive effects in mixtures of similar mode of action chemicals

Presenter : kamo M., Yokomizo H.
Name of Society : The 2016 (26th) annual meeting of the Japanese Society for Mathematical Biology (2016)
Name of Proceedings : Abstracts, 212
Cost-benefit analysis of food safety management:The case of radioactive contaminant

Presenter : Seto M., Uriu K., Kawaguchi I., Yokomizo H.
Name of Society : The 2016 (26th) annual meeting of the Japanese Society for Mathematical Biology (2016)
Name of Proceedings : Abstracts, 242
Coupled socio-economic and ecological dynamics for management of agricultural landscapes in Sado Island, Japan

Presenter : Yokomizo H.
Name of Society : Mathematical Biosciences Institute- Workshop 3: Sustainable Management of Living Natural Resources (2013)
Name of Proceedings : Abstracts
Setting most robust effluent level against severe uncertainty: application of information-gap decision theory to chemical management

Presenter : Yokomizo H.
Name of Society : 6th SETAC World Congress/SETAC Europe 22nd Annual Meeting (2012)
Name of Proceedings : Abstracts book of 6th SETAC World Congress/SETAC Europe 22nd Annual Meeting, 274
Application of information-gap decision theory to ecological risk assessment and management of chemicals

Presenter : Yokomizo H., Naito W., Kamo M.
Name of Society : SETAC North Am.31st Annu.Meet. (2010)
Name of Proceedings : Abstracts, 332

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Understanding Ecological Processes:From Confounding Effects to Demographic Flows

Presenter : Yokomizo H.
Name of Society : The Department of Biological Sciences Research Seminar Series (2026)
Name of Proceedings : Abstracts
Environmental risk assessment of chemical mixtures considering their mode of action, structure, and exposure profile

Presenter : Yamamoto H., Watanabe H., Oda Y., Yamagishi T., Hiki K., Imaizumi Y., Yokomizo H., Ozawa F., Ohno K.
Name of Society : The 52nd Annual Meeting of the Japan Society of Toxicology (2025)
Name of Proceedings : The Journalof Toxicological Sciences, 50(Supplement 1):S42
Population statistics derived from matrix population models: Interstage flow matrix and reproductive-value flow matrix

Presenter : Yokomizo H.
Name of Society : Joint Seminar at Salguero-Gomez lab Davis lab, University of Oxford (2024)
Name of Proceedings : -
Interstage flow and reproductive-value flow: Population statistics derived from matrix population models

Presenter : Yokomizo H.
Name of Society : Seminar at School of Biological Sciences, University of Aberdeen (2024)
Name of Proceedings : -
Population model analyses of the combined effects of insecticide use and habitat degradation on the past sharp declines of the dragonfly Sympetrum frequens

Presenter : Hayashi T., Nakanishi K., Yokomizo H.
Name of Society : K-INET International Symposium 2022 (2022)
Name of Proceedings : Abstracts, 33
Negative effects of insecticides on the population dynamics of the dragonfly Sympetrum frequens in rice fields: A statistical analysis using field census data in Hokuriku region, Japan

Presenter : Nakanishi K., Uéda T., Yokomizo H., Hayashi T.
Name of Society : Joint International Symposium: Challenging the Research Development and Collaboration Through Online Discussion (2020)
Name of Proceedings : Abstracts
A new population statistic for comparative plant demography - Inter-stage flow matrix

Presenter : Yokomizo H.
Name of Society : CER seminars special (2019)
Name of Proceedings : Abstracts
The influence of time since introduction on the population growth of introduced species and the optimal management

Presenter : Yokomizo H.
Name of Society : 奈良女大域情報セミナー (2017)
Name of Proceedings : -
Coupled socio-economic and ecological dynamics for management of agricultural landscapes and revitalization of local economy

Presenter : Yokomizo H.
Name of Society : Seminar in celebration of Prof. Alan Hastings' career (2014)
Name of Proceedings : -

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YOKOMIZO Hiroyuki

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