Mechanistic models for estimating habitat suitability of top predators and its application to future prediction

2015 Fiscal Year Final Research Report

• Project/Area Number: 23241077
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Resource conservation science
• Research Institution: The University of Tokyo
• Principal Investigator: Miyashita Tadashi 東京大学, 農学生命科学研究科, 教授 (50182019)
• Co-Investigator(Kenkyū-buntansha): AZUMA Atsuki 岩手大学, 農学部, 講師 (10322968) ; KEITA Fukasawa 国立環境研究所, 生物生態系環境研究センター 生物多様性評価予測研究室, 主任研究員 (90617101)
• Co-Investigator(Renkei-kenkyūsha): FUJITA Go 東京大学, 大学院農学生命科学研究科, 助教 (80302595)
• Project Period (FY): 2011-04-01 – 2016-03-31
• Keywords: 生息適地モデル / ニッチモデル / 景観生態学 / 分散制限 / 食物網 / 転用可能性

Outline of Final Research Achievements

This study investigated how dispersal limitation and resource limitation affect distribution pattern and habitat suitability modelling for top predators. In particular, we obtained high-resolution data of Gray faced buzzard, a top predator and an endangered species in Satoyama landscape, and estimated the degree of dispersal limitation by statistical analysis, constructed habitat suitability models incorporating regional characteristics, and regional differences in seasonal dynamics of prey animals. Based on these results, we discussed spatio-temporal transferability of habitat suitability models and importance for considering geographic variation in prey dynamics for top predators.

Free Research Field

生態学