人間と野生動物の衝突を解決する新戦略を提案 (Chinese Scientists Propose Human-wildlife Conflict Resolution Strategy)

2026-03-11 中国科学院(CAS)

中国科学院西北高原生物研究所(NWIPB)の研究チームは、人間と野生動物の衝突を減らすための「時間的家畜管理戦略」を提案した。青海省三江源地域で2014~2024年に422台の赤外線カメラを設置し、ユキヒョウ、オオカミ、オオヤマネコ、ヒグマの活動データを収集・解析した結果、これら大型肉食動物は主に夜行性で、種ごとに家畜捕食リスクが高まる時間帯が異なることが判明した。特にヒグマは夜間20:42~翌2:36に人家侵入の危険性が高い。研究は、動物の活動時間に合わせて放牧時間や監視対策を調整することで、家畜被害や人身事故を減らし、人と野生動物の共存を促進できる可能性を示した。

<関連情報>

中国三江源地域における放牧家畜の時間制御管理による人間と大型肉食動物の衝突緩和 Mitigating Human–Large Carnivore Conflicts via Time-Regulated Management of Free-Ranging Livestock in the Sanjiangyuan Region, China

Dong Wang, Quanbang Li, Xu Su, Xinming Lian
Integrative Zoology  Published: 12 February 2026
DOI:https://doi.org/10.1111/1749-4877.70076

人間と野生動物の衝突を解決する新戦略を提案 (Chinese Scientists Propose Human-wildlife Conflict Resolution Strategy)

ABSTRACT

Livestock depredation by large carnivores is a global conservation challenge that fuels human–carnivore conflict and hinders coexistence with agropastoral communities. Understanding carnivore activity patterns and implementing temporal segregation are key to mitigating conflict risks. In this study, we have compiled nearly a decade (2014 to 2024) of infrared camera monitoring data from a representative region of China (the Sanjiangyuan Region), where human–large carnivore conflicts are particularly pronounced. We employed kernel and conditional circular kernel density estimation to analyze the diel activity patterns of four large carnivores and to identify seasonal variations between cold and warm periods, thereby enabling the identification of high-risk intervals for potential human–large carnivore conflicts. Our analysis showed that all four large carnivores were primarily nocturnal with species-specific peak activity times. Notably, the wolf (Canis lupus) exhibited distinct seasonal diel activity patterns, unlike the other species. The temporal risk assessment of livestock predation identified species-specific high-risk windows: for snow leopards (Panthera uncia), the high-risk periods are from 02:35 to 06:41 and from 16:00 to 21:08; for wolves, the high-risk periods are from 06:24 to 11:33 and from 16:12 to 21:24; for Eurasian lynx (Lynx lynx), the high-risk periods are from 01:42 to 06:46 and from 15:57 to 19:32; and for brown bears (Ursus arctos), the high-risk periods for intruding into pastoral dwellings, causing property damage, and posing risks to human safety are from 20:42 to 02:36. Our study established temporal management frameworks in SR for human–carnivore conflict risk mitigation, providing transferable insights for global human–wildlife conflict resolution.

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