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黄獴对城市资源的灵活利用

Flexible Use of Urban Resources by the Yellow Mongoose .

作者信息

Cronk Nadine Elizabeth, Pillay Neville

机构信息

School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Johannesburg, Private Bag 3, WITS 2050, South Africa.

出版信息

Animals (Basel). 2019 Jul 16;9(7):447. doi: 10.3390/ani9070447.

Abstract

Several species are negatively impacted by urbanization, while others thrive in urban areas by exploiting anthropogenic habitats matching their pre-existing niche preferences, or by modifying their behavior for urban life. We studied the ecology of a recent urban resident, the yellow mongoose, in an urban ecological estate in South Africa. We assessed urban dwelling yellow mongooses' diet, spatial and temporal occurrence, home range size, and whenever possible, compared our findings to the published literature on their non-urban conspecifics. Additionally, we evaluated occurrence overlap with residential gardens. Similar to their non-urban counterparts, scat analyses revealed that yellow mongooses in urban areas fed mainly on insects, particularly during spring/summer. In the colder months, anthropogenic items, small mammals and birds in scats increased. Camera trap surveys showed that the mongooses were common in open habitats, similar to previous studies, and exhibited a species-typical bimodal diurnal activity pattern. The occurrence of these mongooses was greater near human residences than at sites further away. Home range sizes were considerably smaller than those of non-urban mongoose. Mongoose occurred in residential gardens, more so during the colder months. The urban yellow mongooses' diet, habitat preference and activity patterns were similar to non-urban conspecifics. Nonetheless, the exploitation of anthropogenic food sources, occurrence in residential gardens and smaller home range sizes showed that they respond flexibly to urbanization, and these modifications might aid in their success in urban areas.

摘要

城市化对一些物种产生了负面影响,而另一些物种则通过利用与其先前的生态位偏好相匹配的人为栖息地,或通过改变自身行为以适应城市生活,从而在城市地区繁衍生息。我们在南非的一个城市生态庄园研究了一种新近出现的城市居民——黄獴的生态。我们评估了居住在城市中的黄獴的饮食、时空出现情况、家域大小,并尽可能将我们的研究结果与已发表的关于其非城市同类物种的文献进行比较。此外,我们还评估了与住宅花园的出现重叠情况。与它们的非城市同类物种类似,粪便分析表明,城市地区的黄獴主要以昆虫为食,尤其是在春/夏季节。在较寒冷的月份,粪便中的人为物品、小型哺乳动物和鸟类有所增加。相机陷阱调查显示,与之前的研究相似,獴在开阔栖息地很常见,并表现出典型的双峰昼夜活动模式。这些獴在人类住所附近的出现频率高于较远的地点。家域大小比非城市獴的家域小得多。獴出现在住宅花园中,在较寒冷的月份更为常见。城市黄獴的饮食、栖息地偏好和活动模式与非城市同类物种相似。尽管如此,对人为食物来源的利用、在住宅花园中的出现以及较小的家域大小表明,它们对城市化有灵活的反应,这些变化可能有助于它们在城市地区的生存。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4893/6680935/6fbdc17e4ceb/animals-09-00447-g001.jpg

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