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 FUKASAWA, Keita

FUKASAWA, Keita

 Ph.D., Senior Researcher

Biodiversity Assessment and Projection Section
Center for Environmental Biology and Ecosystem Studies,
National Institute for Environmental Studies

Onogawa 16-2, Tsukuba City, Ibaraki 305-8506, Japan

Research Overview


Large-scale ecosystem management such as eradication of invasive alien species and wildlife damage control is an increasing issue. If a management action is planned properly, it can be considered as a large-scale field manipulation experiment. Then, we will be able to obtain not only understandings about dynamics of the organisms but also decision-support information for the management. My research theme is connecting data and decision-making in ecosystem management using ecological models. My specific interests are management of invasive alien tree species in the Bonin Islands, eradication of the small Asian mongoose in Amami Island, and population management of the bear.

Research Interests


Spatio-temporal ecology, Conservation biology, Hierarchical Bayes model

Original Papers (peer reviewed)


Matsuhashi S., Asai M., Fukasawa K. (2021) Estimations and projections of Avena fatua dynamics under multiple management scenarios in crop fields using simplified longitudinal monitoring. PLoS ONE, 16, e0245217 new arrival updated Jan. 18, 2021

Fukasawa K., Osada Y., Iijima H. (2020) Is harvest size a valid indirect measure of abundance for evaluating the population size of game animals using harvest-based estimation? Wildlife Biology

Nishimoto M., Miyashita T., Yokomizo H., Matsuda H., Imazu T., Takahashi H., Hasegawa M., Fukasawa K. (2020) Spatial optimization of invasive species control informed by management practices. Ecological Applications, 31, e02261

Yoshioka A., Shimizu A., Oguma H., Kumada N., Fukasawa K., Jingu S., Kadoya T. (2020) Development of a camera trap for perching dragonflies: a new tool for freshwater environmental assessment. PeerJ, 8, e9681. DOI: 10.7717/peerj.9681

Yoshioka A., Matsushima N., Jingu S., Kumada N., Yokota R., Totsu K., Fukasawa K. (2020) Acoustic monitoring data of anuran species inside and outside the evacuation zone of the Fukushima Daiichi power plant accident. Ecological Research, 35, 765-772. DOI: 10.1111/1440-1703.12121

Komine, H., Fukasawa, K., Akasaka, M., Watari, Y., Iwai, N., Kaji, K. (2020) Rapid behavioural responses of native frogs caused by past predation pressure from invasive mongooses. Journal of Zoology, 310(2), 126-134. DOI: 10.1111/jzo.12734

Fukasawa, K., Akasaka, T. (2019) Long-lasting effects of historical land use on the current distribution of mammals revealed by ecological and archaeological patterns. Scientific Reports, 9, 10697. DOI: 10.1038/s41598-019-46809-1 link to press release

Ohashi, H., Fukasawa, K., Ariga, T., Matsui, T., Hijioka, Y. (2019) High-resolution national land use scenarios under a shrinking population in Japan. Transactions in GIS, 23, 786-804. DOI: 10.1111/tgis.12525

Nakashima, Y., Fukasawa, K., Samejima, H. (2018) Estimating animal density without individual recognition using information derivable exclusively from camera traps. Journal of Applied Ecology, 55(2), 735-744. DOI: 10.1111/1365-2664.13059

Yoshioka, A., Fukasawa, K., Mishima, Y., Sasaki, K., Kadoya, T. (2017). Ecological dissimilarity among land-use/land-cover types improves a heterogeneity index for predicting biodiversity in agricultural landscapes. Ambio, 46(8), 894-906. DOI: 10.1007/s13280-017-0925-7

Hata, A., Takada, MB., Nakashita, R., Fukasawa, K., Oshida, T., Ishibashi, Y., Sato, Y. (2017) Stable isotope and DNA analyses reveal the spatial distribution of crop-foraging brown bears. Journal of Zoology, 303(3), 207-217. DOI: 10.1111/jzo.12479

Mizuta T., Takami Y., Torikai H., Watanabe T., Fukasawa K. (2017) Song-count surveys and population estimates reveal the recovery of the endangered Amami Thrush Zoothera dauma major, which is endemic to Amami-Oshima Island in south-western Japan. Bird Conservation International, 27(4), 470-482. DOI: 10.1017/S095927091600023X

Fukasawa, K., Mishima, Y., Yoshioka, A., Kumada, N., Totsu, K. (2017) Acoustic monitoring data of avian species inside and outside the evacuation zone of the Fukushima Daiichi power plant accident. Ecological Research, 32(6), 769. DOI: 10.1007/s11284-017-1491-y

Yoshioka, A., Fukasawa, K., Mishima, Y., Sasaki, K., Kadoya, T. (2017) Ecological dissimilarity among land-use/land-cover types improves a heterogeneity index for predicting biodiversity in agricultural landscapes. Ambio, 46(8), 894-906. DOI: 10.1007/s13280-017-0925-7

Fukasawa, K., Mishima, Y., Yoshioka, A., Kumada, N., Totsu, K., Osawa, T. (2016) Mammal assemblages recorded by camera traps inside and outside the evacuation zone of the Fukushima Daiichi Nuclear Power Plant accident. Ecological Research, 31(4), 493. DOI: 10.1007/s11284-016-1383-6

Tani, N., Tsumura, Y., Fukasawa, K., Kado, T., Taguchi, Y., Lee, SL, et al. (2015) Mixed Mating System Are Regulated by Fecundity in Shorea curtisii (Dipterocarpaceae) as Revealed by Comparison under Different Pollen Limited Conditions. PLoS ONE, 10(5), e0123445. DOI: 10.1371/journal.pone.0123445

Yoshioka, A., Mishima, Y., Fukasawa, K. (2015) Pollinators and other flying insects inside and outside the Fukushima evacuation zone. PLOS ONE, 10(e0140957), 1-16. DOI: 10.1371/journal.pone.0140957

Fukasawa, K., Hashimoto, T., Tatara, M., Abe, S. (2013) Reconstruction and prediction of invasive mongoose population dynamics from history of introduction and management: a Bayesian state-space modelling approach. Journal of Applied Ecology, 50(2), 469-478. DOI: 10.1111/1365-2664.12058
    
Fukasawa, K., Miyashita, T., Hashimoto, T., Tatara, M., and Abe, S. (2013) Differential population responses of native and alien rodents to an invasive predator, habitat alteration, and plant masting. Proceedings of Royal Society B: Biological Sciences, 280, 20132075. DOI: 10.1098/rspb.2013.2075

Tani, N., Tsumura, Y., Fukasawa, K., Kado, T., Taguchi, Y., Lee, S.L., Lee, C.T., Muhammad, N., Niiyama, K., Otani, T., Yagihashi, T., Ripin,A., Kassim, A. R. (2012) Male fecundity and pollen dispersal in hill dipterocarps: significance of mass synchronized flowering and implications for conservation. Journal of Ecology, 100(2), 405-415. DOI: 10.1111/j.1365-2745.2011.01929.x

Fukasawa, K., Koike, F., Tanaka, N. and Otsu, K. (2009) Predicting future invasion of an invasive alien tree in a Japanese oceanic island by process-based statistical models using recent distribution maps. Ecological Research, 24, 965-975. DOI: 10.1007/s11284-009-0595-4

Books/ Book Sections


Yoshioka, A., Mishima, Y., Kumada, N., Fukasawa, K. (2016). Tackling biodiversity monitoring of the Fukushima evacuation zone. IAIA1 6 Conference Proceedings.

Last updated Jan. 18, 2021