Preliminary evidence of a barrier effect of a railroad on the migration of Mongolian gazelles
Preliminary evidence of a barrier effect of a railroad on the migration of Mongolian gazelles
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DOI：
10.1111/j.1523-1739.2005.004364.x
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发表时间：
2005-06-01
影响因子：
6.3
通讯作者：
Jiang, ZW
中科院分区：
文献类型：
--
作者：
Ito, TY;Miura, N;Jiang, ZW
关于人类活动如何影响大型哺乳动物的迁徙，还有很多东西有待了解。我们研究了蒙古国的国际铁路对蒙古瞪羚（Procapra gutturosa）迁移的潜在影响。我们研究了瞪羚运动和归一化植被指数（NDVI）的铁路两侧。跟踪瞪羚从来没有越过铁路，尽管运动，主要是在冬季铁路和较高的NDVI值的对面。这条铁路很可能对瞪羚的迁徙产生了障碍效应，因为它分裂了瞪羚的栖息地。我们的研究结果，虽然基于一个非常小的样本，有效用的方法，可能是有用的有蹄类动物的迁移检查。
Much remains to be learned about how anthropogenic structures affect migration in large mammals. We examined the potential influence of the international railroad in Mongolia on migration in Mongolian gazelles (Procapra gutturosa). We examined gazelle movements and the normalized difference vegetation index (NDVI) on both sides of the railroad. The tracked gazelles never crossed the railroad, despite movements that mainly followed the railroad in winter and higher NDVI values on the opposite side. It is likely that the railroad had a barrier effect on gazelle migration because it split the gazelles' habitat. Our results, although based on an extremely small sample, have utility in indicating approaches that might be useful for examining migration in ungulates.