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Small terrestrial mammal distributions in Simien Mountains National Park, Ethiopia: a reassessment after 88 years
Journal of Mammalogy ( IF 1.5 ) Pub Date : 2020-05-05 , DOI: 10.1093/jmammal/gyaa040
Evan W Craig 1 , William T Stanley 1 , Julian C Kerbis Peterhans 1, 2 , Josef Bryja 3, 4 , Yonas Meheretu 5
Affiliation  

Despite the presence of mostly endemic species, the most comprehensive data set on the distribution and ecology of small mammals inhabiting Simien Mountains National Park (SMNP) dated from 1927. The study we carried out and report here provides a unique opportunity to assess the possible role of climate change over the last 88 years on the elevational distribution of mammals in the Ethiopian highlands. Between September and November 2015, three of us (EWC, WTS, YM) collected nonvolant small mammals at four sites (2,900, 3,250, 3,600, and 4,000 m a.s.l.) along the western slope of the Simien Mountains using standardized sampling. Over a 4-week period we recorded 13 species, comprising 11 species of rodents and two of shrews, all endemic to the Ethiopian Plateau. We found the greatest species richness at mid-elevations (3,250 m), consistent with a general pattern found on many other mountains worldwide, but less so in Africa. We compared our species distribution results to the 1927 data set and found upward elevational shifts in species' ranges, highlighting the role and influence of climate change on the small mammal community. SMNP represents an exceptionally valuable core area of endemism and the best protected natural habitat in northern Ethiopia.

中文翻译:

埃塞俄比亚 Simien 山国家公园的小型陆生哺乳动物分布:88 年后的重新评估

尽管存在大多数地方性物种,但关于居住在 Simien Mountains National Park (SMNP) 的小型哺乳动物的分布和生态的最全面数据集可追溯到 1927 年。我们在此进行和报告的研究提供了一个独特的机会来评估可能的作用过去 88 年气候变化对埃塞俄比亚高原哺乳动物海拔分布的影响。2015 年 9 月至 11 月期间,我们三个人(EWC、WTS、YM)使用标准化采样在 Simien 山脉西坡沿线的四个地点(海拔 2,900、3,250、3,600 和 4,000 米)收集了非活动性小型哺乳动物。在 4 周的时间里,我们记录了 13 种,包括 11 种啮齿动物和两种鼩鼱,它们都是埃塞俄比亚高原的特有种。我们在中海拔(3,250 m)发现了最大的物种丰富度,与世界上许多其他山上发现的一般模式一致,但在非洲则不然。我们将我们的物种分布结果与 1927 年的数据集进行了比较,发现物种范围的海拔升高,突出了气候变化对小型哺乳动物群落的作用和影响。SMNP 代表了一个非常有价值的地方性核心区和埃塞俄比亚北部受保护最好的自然栖息地。
更新日期:2020-05-05
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