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城市郊狼很少被观察到,并且在社区中面对志愿者的坚定靠近时总是会退缩。

Urban coyotes were observed rarely and retreated consistently from assertive approaches by volunteers in neighborhoods.

作者信息

Lajeunesse Gabrielle, Harshaw Howard W, St Clair Colleen Cassady

机构信息

Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.

Faculty of Kinesiology, Sport, and Recreation, University of Alberta, Edmonton, Alberta, Canada.

出版信息

PLoS One. 2025 Apr 16;20(4):e0318127. doi: 10.1371/journal.pone.0318127. eCollection 2025.

Abstract

Human-coyote conflict can arise when coyotes follow, pursue or attack pets or people. Although such attacks are rare, they are typically highly publicized, and leave residents concerned about the presence of coyotes in their neighborhoods. Wildlife managers often promote hazing to mitigate human-coyote conflicts, but this technique for intimidating animals has been studied in coyotes only recently and there are few guidelines for its implementation. We developed a community-based hazing program in Edmonton (Alberta, Canada) implemented by volunteers who patrolled their neighborhoods while recording coyotes and coyote attractants. When coyotes were observed, volunteers walked towards the coyotes and recorded their overt reaction and flight initiation distances. If coyotes did not retreat when volunteers were within 40 m of the animal, volunteers ran towards the coyote while shouting and throwing weighted tennis balls towards the animals. Over two field seasons, we recruited, trained, and engaged 120 volunteers from 71 neighborhoods, who conducted 1598 patrols, observed coyotes in 175 instances, and conducted hazing 23 times. Coyotes retreated before volunteers were within 40 m during 124 (71%) of the observations and retreated immediately from 22 (96%) of the hazing events. We found no evidence that hazing changed subsequent measures of overt reaction or flight initiation distances by coyotes, perhaps because it was implemented too rarely, and its effects on the number or timing of subsequent coyote reports by members of the public were inconsistent. Our study emphasizes the rarity of close encounters with coyotes and the high frequency with which they retreat from human approaches and even directed attention by people. Our study supports the use of community-based hazing to reassure members of the public while potentially promoting wariness in coyotes.

摘要

当郊狼追逐、追捕或攻击宠物或人类时,就会引发人与郊狼的冲突。尽管此类攻击很少见,但通常会被广泛报道,这让居民们担心自家附近出现郊狼。野生动物管理人员经常提倡采用威慑法来缓解人与郊狼的冲突,但这种恐吓动物的方法直到最近才在郊狼身上得到研究,而且实施该方法的指导方针很少。我们在加拿大艾伯塔省埃德蒙顿市开展了一项基于社区的威慑计划,由志愿者实施,他们在自家社区巡逻的同时记录郊狼和郊狼的吸引物。当观察到郊狼时,志愿者走向郊狼,记录它们的明显反应和逃跑起始距离。如果当志愿者距离动物40米以内时郊狼没有后退,志愿者就朝着郊狼奔跑,同时大声呼喊并向动物投掷加重网球。在两个野外季节里,我们招募、培训并让来自71个社区的120名志愿者参与其中,他们进行了1598次巡逻,175次观察到郊狼,并实施了23次威慑行动。在124次(71%)观察中,郊狼在志愿者距离40米以内之前就后退了,在22次(96%)威慑行动中郊狼立即后退。我们没有发现证据表明威慑改变了郊狼随后的明显反应或逃跑起始距离的测量结果,可能是因为实施威慑的次数太少,而且其对公众随后报告郊狼的数量或时间的影响并不一致。我们的研究强调了与郊狼近距离接触的罕见性,以及它们从人类靠近甚至人类直接关注中后退的高频率。我们的研究支持使用基于社区的威慑法,既能让公众安心,又有可能促使郊狼保持警惕。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b551/12002461/ff02e2d6d2ab/pone.0318127.g001.jpg

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