Summer Diet and Habitat Use of Pallas's Squirrels in Urban Areas of Yokohama City

• Takahata Yu

  Toyo University

• Kikuchi Dale M.

  Tokyo City University

• Kawamata Kotaro

  Tokyo City University

• Watanabe Rina

  Toyo University

• Shirai Kotaro

  Atmosphere and Ocean Research Institute, The University of Tokyo

• Tanaka Kentaro

  Atmosphere and Ocean Research Institute, The University of Tokyo

• Ito Motohiro

  Toyo University

Bibliographic Information

Other Title

• 横浜市の都市部小緑地に生息するクリハラリスの夏季における食性と生息地利用

Abstract

 In Japan, the Pallas's squirrel (Callosciurus erythraeus) is an invasive species with adverse effects on native ecosystems and urban human activities, and is becoming a serious concern. However, there remains a lack of knowledge about the basic ecological habits of Pallas's squirrels in urban areas. We conducted stable isotope analysis and GPS logger deployment to understand the diet and habitat use of Pallas's squirrels in Yokohama City, during summer. We found that the squirrels mainly foraged on plants from the small forests in the urban area, and most of their activities were carried out in the forest areas during summer. This suggested that the main habitat of the urban living squirrels are small forests in urban area. In addition, not very often, but some substantial movement of squirrels in human residential areas outside of the forest were observed in this study. Such behavior could be a potential factor for rapid dispersal of these invasive squirrels in urban areas.

Journal

• Wildlife and Human Society

  Wildlife and Human Society 8 (0), 47-57, 2020

  Association of Wildlife and Human Society

Keywords

• invasive species
• biologging
• <i>Callosciurus erythraeus</i>
• habitat use
• stable isotope analysis

Details

• CRID: 1391975831225599744
• NII Article ID: 130007965796
• DOI: 10.20798/awhswhs.8.0_47
• ISSN: 24242365
• ISSN: 24240877
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed