The Mitsui & Co. Environment Fund

Introduction to Grant Projects

Nao Miyashita, Associate Professor, Graduate School of Agricultural and Life Sciences, The University of Tokyo

Building a spatially explicit management strategy that integrates multiple species of mammals

Research grant

Project Description

Develop a model to predict the density and spread of agricultural damage caused by several species of mammals living in the same area and expanding their distribution. Based on the results of this model we will assess how the limited eradication budgets of local self-governing bodies can be used on each species and at each location, and allocated to achieve the lowest overall risk, under various scenarios of differing uncertainties, and give policy advice about the results to local administrators.

Preservation of surface soil and forestsPreservation of biodiversity and ecosystem
Grant year
FY2010 Research Grants
Grant term
2 years
April 2011 - March 2013
Grant amount
9,940,884 yen
Activity region
Chiba Prefecture, Japan
Traps for catching wild boars

Overview of the Organization

Nao Miyashita, Associate Professor
Nao Miyashita, Associate Professor
Specialist fields
Animal ecology, community ecology, conservation ecology
Affiliated academic societies
The Ecological Society of Japan, Society of Population Ecology
Research Assistant, Faculty of Agriculture, The University of Tokyo, 1985; Assistant Professor, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1998; Associate Professor, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 2006. Position: Professor (agriculture)
WEB site
Hiroyuki Yokomizo, Researcher, Center for Environmental Risk Research; Haruhiko Tachida, Associate Professor, Faculty of Agriculture, University of the Ryukyus; Masahiko Asada, Chief Investigator, Chiba Biodiversity Center, Nature Conservation Division, Environmental and Community Affairs Department, Chiba Prefecture
Reearch record
  • (1) Miyashita, T., Suzuki, M., Takada, M., Fujita, G., Ochiai, K. & Asada, M. (2007) Landscape structure affects food quality of sika deer (Cervus nippon) evidenced by fecal nitrogen levels. Population Ecology, 49: 185-190.
  • (2) Miyashita, T. & Takada, M. (2007) Habitat provisioning for aboveground predators decreases detritivores: the coupling of engineering effect to top-down eff ect. Ecology, 88: 2903-2809.
  • (3) Suzuki, M., Miyashita, T., Kabaya, H., Ochiai, K., Asada, M. & Tange, K. (2008) Deer density affects ground-layer vegetation differently in conifer plantations and hardwood forests on the Boso peninsula, Japan. Ecological Research, 23: 151-158.
  • (4) Miyashita, T., Suzuki, M., Ando, D., Fujita, G., Ochiai, K. & Asada, M. (2008) Forest edge creates smallscale variation in reproductive rate of sika deer. Population Ecology, 50: 111-120.