パンデミック期の人間と野生動物移動データが共存方法を示唆(Data on Human and Wildlife Movement During the Pandemic Suggest New Ways for Us to Coexist)

2026-05-21 カリフォルニア大学サンタバーバラ校(UCSB)

米国のUniversity of California, Santa Barbaraの研究チームは、新型コロナ禍における人間と野生動物の移動データを分析し、人と野生生物がより共存しやすい環境設計の可能性を示した。研究では、パンデミックによる人間活動の急減が野生動物の行動範囲や移動パターンに与えた影響を比較解析し、人間の移動制限時には一部の野生動物が都市周辺や交通回廊をより活発に利用することを確認した。一方で、すべての種が恩恵を受けたわけではなく、人間活動への依存度や生態特性によって反応が異なることも判明した。研究者らは、高頻度移動データやGPS追跡情報を活用することで、人間活動と野生動物保全を両立する都市計画や交通設計が可能になると指摘している。本研究は、人新世における人間-野生生物共存戦略への重要な知見を提供する成果とされる。

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人間の存在と景観改変が鳥類と哺乳類に及ぼす相互作用効果 Interacting effects of human presence and landscape modification on birds and mammals

Ruth Y. Oliver, Scott W. Yanco, Diego Ellis-Soto, Brett R. Jesmer, […] , and Walter Jetz

Science  Published:21 May 2026

DOI:https://doi.org/10.1126/science.adq3396

パンデミック期の人間と野生動物移動データが共存方法を示唆(Data on Human and Wildlife Movement During the Pandemic Suggest New Ways for Us to Coexist)

Editor’s summary

Agriculture, settlements, roads, and other infrastructure profoundly shape the habitats that are available to nonhuman animals. In addition to changing their behavior to avoid or exploit these new hazards and resources, many species may also directly avoid humans. Oliver et al. examined how bird and mammal habitat use depends on both human land use and direct human presence using mobile device data to determine where people are (see the Perspective by Beaudrot). Across 37 species with geolocation data in the United States, most species responded directly to human movements, with most of these showing interactive effects between human land use and human presence. Considering only human effects on land cover will thus often provide inaccurate assessments of species’ habitat use. —Bianca Lopez

Abstract

Sustainable human–wildlife coexistence requires a mechanistic understanding of the many ways that humans affect animals. However, progress is hampered by the lack of accessible data measuring the dynamic presence of people. Here, we leverage mobile-device data to disentangle how human presence and landscape modification differentially influence the use of geographic and environmental space for 37 mammal and bird species across the United States. Human presence affected more than 65% of species, with substantial variation across species. For ~60% of species that responded to human activities, the effects were interdependent—animals tended to react more strongly to human presence in less modified habitats. Our results demonstrate that human presence and landscape modification have complex combined effects on wildlife, which need to be considered for effective management.

1903自然環境保全
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