2016 Fiscal Year Final Research Report
Collective brains for spatiotemporal distributions of herons and egrets
Project/Area Number |
26440233
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Ecology/Environment
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Research Institution | University of Tsukuba |
Principal Investigator |
|
Research Collaborator |
FASOLA Mauro Pavia大学, Zoology, 教授
MASHIKO Miyuki 野生動物保護管理事務所, 計画策定支援室, 研究員
CARRASCO Luis Centre for Ecology and Hydrology, Research Associate
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Project Period (FY) |
2014-04-01 – 2017-03-31
|
Keywords | Collective site fidelity / Random forest / Habitat selection / Long term data / Ardea cinerea / Bayesian / Evidentialist / Fisherian |
Outline of Final Research Achievements |
We analyzed heronry dynamics around Ibaraki prefecture with random forest and correlated random walk. Increasing site fidelity was detected as a collective decision of colony members, and such decision was highly correlated with changes in species composition. We used the same technique for Dr. Fasola's data in northern Italy and found a similar tendency of increasing site fidelity. Our findings warn a previous interpretation that colony distributions were mainly determined by distributions of available foraging sites. More attention should be paid for historicity of colony formation.
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Free Research Field |
理論生物学
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