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首页> 外文期刊>Journal of arid environments >Is human disturbance causing differential preference of agricultural landscapes by taruka and feral donkeys in high Andean deserts during the dry season?
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Is human disturbance causing differential preference of agricultural landscapes by taruka and feral donkeys in high Andean deserts during the dry season?

机译：在干旱季节，人为干扰是否会导致高安第斯沙漠中塔鲁卡和野生驴对农业景观的偏爱？

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Areas with high shrub and grass cover are scarce and important for arid-land ungulates. Unfortunately, agricultural activities are often concentrated in such areas causing ungulates either to include croplands as foraging areas or being displaced to less desirable and more restrictive habitats. Considering this conflict, we assessed the spatial overlap of taruka (Hippocamelus antisensis) and feral donkeys (Equus asinus) at intermediate scales (0-2000 m) and compare their habitat preferences in the highland desert of northern Chile. We visited the area during the dry season; we estimated the vegetation cover and measured distance to croplands from animal sightings and control points. We found that there was an aggregated spatial pattern between donkey and taruka and both species used areas with shrub (p = 0.770) and bare ground cover (p = 0.124) as available. Nevertheless they differed on their location relative to crops (taruka used areas as available p = 0.964, feral donkeys avoided areas near crops p < 0.001). Our results suggest that there is a low potential for competition between species considering their habitat preferences. In spite of human persecution, this pattern appears to be driven by the taruka's dependence upon humid habitats near water and thus crops while feral donkeys can avoid such areas because of their tolerance of more arid environments than the native deer. (C) 2016 Elsevier Ltd. All rights reserved.
机译：灌木和草皮高的地区稀少，对干旱地有蹄类动物很重要。不幸的是，农业活动往往集中在这些地区，导致有蹄类动物将耕地包括在内作为觅食区，或者被转移到较不理想和限制性更强的栖息地。考虑到这一冲突，我们评估了塔鲁卡（Hippocamelus antisensis）和野驴（Equus asinus）在中等规模（0-2000 m）的空间重叠，并比较了它们在智利北部高原沙漠中的栖息地偏好。我们在干旱季节访问了该地区。我们估计了植被覆盖度，并从动物的视线和控制点测算了距农田的距离。我们发现驴和塔鲁卡之间存在聚集的空间格局，并且两个物种都使用了灌木（p = 0.770）和裸露地表覆盖（p = 0.124）的区域。然而，它们相对于农作物的位置有所不同（塔鲁卡使用的可用面积p = 0.964，野生驴避免了农作物附近的面积p <0.001）。我们的结果表明，考虑到栖息地的偏好，物种之间竞争的可能性很小。尽管受到人类的迫害，但这种模式似乎是由于塔鲁卡人对水附近潮湿的生境以及作物的依赖而引起的，而野生驴可以避开这些地区，因为它们比本地鹿更能适应干旱环境。 （C）2016 Elsevier Ltd.保留所有权利。

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