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Determining daytime resting site habitats of exurban feral cats
Urban Ecosystems ( IF 2.5 ) Pub Date : 2020-10-27 , DOI: 10.1007/s11252-020-01067-2
Catherine Normand , Rachael E. Urbanek , Carson L. Hicks

Predicting daytime resting sites (DRS) in feral cat (Felis catus) populations provides a means for further understanding what habitat characteristics are used by the species, which in turn may help in managing their populations. Between May – August 2013, we identified 319 summer DRSs used by 24 radiocollared feral cats in Russellville, Arkansas. Our goal was to characterize summer DRS use by feral cats via microhabitat and macrohabitat analysis in an exurban city. We identified DRSs by homing in on individuals between 1000 and 1600 h and sampled the habitat of one DRS for each cat weekly. We developed 13 a priori models focused on six micro- and macrohabitat variables that explained 97% of the data variability. Most cats used DRSs in thick vegetation or under anthropogenic structures, but we also observed cats inside anthropogenic structures, underground openings, and in open areas with no protective cover. Most DRSs were located within the open-low intensity developed land cover type. Two competing models that included 82% of the model weights indicated that DRS locations with relatively cooler temperatures, high overhead cover, and high ground-level visual obscurity were used frequently by cats. We also observed seven occasions of DRS sharing which were all within 165 m to known artificial food sources. Given the variety of habitats used by feral cats in this study, it would be difficult to predict specific daytime trapping locations with no established colony associated with a subsidized feeding area.



中文翻译:

确定郊区野猫的白天休息场所栖息地

预测野猫(Felis catus)的白天休息位(DRS))种群提供了一种进一步了解该物种使用哪些栖息地特征的方法,这反过来可能有助于管理其种群。在2013年5月至8月之间,我们确定了阿肯色州罗素维尔的24只放射性领野猫使用的319种夏季DRS。我们的目标是通过城市郊区的微观栖息地和宏观栖息地分析来表征野猫在夏季使用DRS的特征。我们通过归巢于1000至1600小时之间的个体来识别DRS,并每周为每只猫采样一次DRS的栖息地。我们开发了13个先验模型,重点关注六个微观和宏观栖息地变量,这些变量解释了97%的数据变异性。大多数猫在茂密的植被中或在人为结构下使用DRS,但我们还观察到猫在人为结构内部,地下开口以及没有保护罩的开放区域中。大多数DRS位于开放低强度发达的土地覆盖类型内。包含82%模型权重的两个相互竞争的模型表明,猫经常使用温度相对较低,高架空覆盖物和较高地面视觉模糊度的DRS位置。我们还观察到共有7次DRS共享的情况,这些情况都在165 m以内到已知的人工食物来源。考虑到野猫在这项研究中使用的栖息地多种多样,将很难预测特定的白天诱捕地点,而没有与补贴的饲养区相关的既定殖民地。和高水平的地面遮盖力经常被猫使用。我们还观察到共有7次DRS共享的情况,这些情况都在165 m以内到已知的人工食物来源。考虑到野猫在这项研究中使用的栖息地多种多样,将很难预测特定的白天诱捕地点,而没有与补贴的饲养区相关的既定殖民地。和高水平的地面遮盖力经常被猫使用。我们还观察到共有7次DRS共享的情况,这些情况都在165 m以内到已知的人工食物来源。考虑到野猫在这项研究中使用的栖息地多种多样,将很难预测特定的白天诱捕地点,而没有与补贴的饲养区相关的既定殖民地。

更新日期:2020-10-30
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