流域间高海拔地区新热带水獭(Lontra longicaudis)的存在

IF 0.5 4区 环境科学与生态学 Q4 BIODIVERSITY CONSERVATION
J. P. Esparza-Carlos, P. C. Hernández-Romero, Jaime Antonio Escoto Moreno
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引用次数: 1

摘要

摘要新热带水獭(Lontra longicaudis)与淡水系统有关,通常在海拔低于1500米的地方发现。它以鱼类和甲壳类动物为食。我们提出了在塞拉利昂de Manantlán生物圈保护区,哈利斯科州,m西科州,两个水文盆地之间的分界线的新热带水獭的3张照片记录。这些照片都是在海拔2000米左右的地方拍摄的,其中一张距离水源>600米。由于水流低,鱼类缺乏,甲壳类动物稀少,该地区不具备水獭存在的最佳条件。这些记录是新热带水獭生活在高海拔环境的证据,那里的条件对该物种来说不是最理想的。此外,还讨论了保护流域源头的重要性,因为源头可以支持新热带水獭在边缘栖息地的运动或偶尔停留,从而保持流域之间的连通性,促进水獭种群之间的遗传交流。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Presence of Neotropical Otter (Lontra longicaudis) at High Elevation between Watersheds
Abstract. The neotropical otter (Lontra longicaudis) is associated with freshwater systems and is generally found at elevations lower than 1500 masl. Its diet is based on fish and crustaceans. We present 3 photorecords of the neotropical otter at the divide between 2 hydrological basins in the Sierra de Manantlán Biosphere Reserve, Jalisco, México. The photos were taken at an altitude near 2000 masl, and one of them was >600 m from a water source. The area does not present optimal conditions for the presence of otter since water flows are low, fish are absent, and crustaceans are scarce. These records are evidence of the neotropical otter at high altitude in environments where conditions are suboptimal for the species. In addition, the importance of conserving the basin headwaters is discussed, since the headwaters can support movement or occasional stays of the neotropical otter in marginal habitat and thereby maintain the connectivity between basins and facilitate genetic exchange between otter populations.
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来源期刊
Western North American Naturalist
Western North American Naturalist 环境科学-生态学
CiteScore
0.90
自引率
16.70%
发文量
39
审稿时长
>36 weeks
期刊介绍: The Western North American Naturalist places neither restriction nor preference on manuscripts within the disciplines of the biological sciences. Each issue treats diverse taxa from the perspectives of various disciplines (e.g., ecology, population dynamics, behavior, systematics, anatomy, and physiology).
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