Effects of Human Activity on the Fallen-Fruit Foraging Behavior of Carnivoran Species in an Urban Forest

IF 0.8 4区 生物学 Q3 ZOOLOGY Mammal Study Pub Date : 2022-02-15 DOI:10.3106/ms2021-0041
S. Ōsugi, Bruna Elisa Trentin, S. Koike
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引用次数: 3

Abstract

Abstract. The purpose of the present study was to determine whether and how the fruit-foraging behaviors of two frugivorous carnivorans, the raccoon dog (Nyctereutes procyonoides) and Japanese badger (Meles anakuma), are influenced by the presence of humans. In the first investigation, we contrasted the frequency and duration of foraging visits to fruit-bearing trees in an urban forest and a mountain forest. In the second investigation, we employed a modeling approach to ascertain whether the degree of shelter affected tree selection in the urban forest by these frugivorous species. The results of the first investigation showed that both species foraged almost solely at night in the urban forest and had significantly shorter visit times in the urban forest than in the mountain forest. The second investigation revealed that both species selected to forage in sheltered places where the forest floor was covered with vegetation. We found that fruit production did not affect tree choice in these places, indicating that the mammals prioritize avoiding humans over effective foraging in places with more plentiful fruits. These tendencies to forage at night and in areas with adequate shelter indicate that these species have adapted their behaviors to avoid humans in urban environments.
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人类活动对城市森林食肉动物落果觅食行为的影响
摘要本研究的目的是确定浣熊(Nyctereutes procyonoides)和日本獾(Meles anakuma)这两种食果食肉动物的水果觅食行为是否以及如何受到人类存在的影响。在第一次调查中,我们对比了城市森林和山林中果树的觅食频率和持续时间。在第二项调查中,我们采用建模方法来确定遮荫程度是否影响城市森林中这些食果物种的树木选择。第一次调查结果表明,这两种物种在城市森林中几乎只在夜间觅食,并且在城市森林中的访问时间明显短于在山地森林中的访问时间。第二次调查显示,这两个物种都选择在森林地面被植被覆盖的有遮蔽的地方觅食。我们发现,在这些地方,水果产量并不影响树木的选择,这表明哺乳动物优先避开人类,而不是在水果更丰富的地方有效觅食。这些在夜间和有足够庇护所的地区觅食的倾向表明,这些物种已经适应了它们的行为,以避开城市环境中的人类。
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来源期刊
Mammal Study
Mammal Study ZOOLOGY-
CiteScore
1.70
自引率
20.00%
发文量
23
审稿时长
>12 weeks
期刊介绍: Mammal Study is the official journal of the Mammal Society of Japan. It publishes original articles, short communications, and reviews on all aspects of mammalogy quarterly, written in English.
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