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首页> 外文期刊>Bonn zoological Bulletin >Diversity of bats (Mammalia: Chiroptera) along an altitudinal gradient in the western region of Cameroon
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Diversity of bats (Mammalia: Chiroptera) along an altitudinal gradient in the western region of Cameroon

机译：蝙蝠（哺乳动物：Chiroptera）的多样性沿着喀麦隆西区的一直梯度

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摘要

We investigated the patterns of bat species richness, abundance and distribution along an altitudinal gradient in the West region of Cameroon from December 2016 to November 2018 with the use of mist nets. Captures were conducted at 32 sites distributed over six distinct elevational ranges, comprising five sites in elevation range I (< 750 m a.s.l.), four sites in elevation range П (750-1,000 m a.s.l.), eight sites in elevation range III (1,000-1,250 m a.s.l.), six sites in elevation range IV (1,250-1,500 m a.s.l.), six sites in elevation range V (1,500-1,750 m a.s.l.) and two sites in elevation range VI (> 1,750 m a.s.l.). A total of 442 bats were captured during 95 sampling nights, comprising 25 species, 16 genera and six families. Out of the 25 species, Myonycteris angolensis was the most abundant species captured with 80 individuals, followed by Micropteropus pusillus (61 individuals) and Eidolon helvum (60 individuals). Moreover, species richness peaked at the mid-elevation range III (1,000-1,250 m a.s.l.), with 13 species, with richness decreasing both at higher and lower elevations. Elevation range I had the second highest species richness with 12 species, while elevational range VI had the least species riches with three species. Species abundance peaked at elevation range IV (750-1,250 m a.s.l.) and decreases at higher elevations. The sample efficiency was estimated as 72.8% and a species accumulation curve of bats did not reach an asymptote, indicating that our sampling was incomplete.Our data showed that species richness and abundance is affected by elevation, with species richness probably depending on habitat types and availability of resources such as food and suitable roost sites. Our data also contributes to a better descriptionof the local fauna and fills gaps on the species distribution for high altitude sites.
机译：从2016年12月到2018年11月，我们调查了沿着喀麦隆西部地区的蝙蝠物种丰富，丰富和分布的模式，从2018年12月到2018年11月，使用雾网。在分布在六个不同的升高范围内的32个站点进行捕获，其中升高范围I（<750米ASL）中的五个位点，高程范围П（750-1,000米ASL），高程范围III（1,000- 1,250米ASL），高程范围IV（1,250-1,500米ASL），六个位点，六个地点V（1,500-1,750米ASL），升高范围VI（> 1,750米ASL）。在95个采样之夜期间捕获了共有442个蝙蝠，包括25种，16属和六个家庭。在25种物种中，Myonycteris Angolensis是捕获的最丰富的物种，其中80人捕获，其次是Micropteropus pusillus（61个个体）和Eidolon Helvum（60个个体）。此外，物种丰富性在中升高范围III（1,000-1,250米A.S.L.）上达到峰值，具有13种，具有较高且较低的升高性的丰富性降低。海拔范围我拥有12种具有12种的最高种类的丰富性，而高程范围VI有三种物种的含量最少。物种丰富在升高范围IV（750-1,250 m A.S.L.）上达到峰值，并在较高升高处减少。估计样品效率为72.8％，蝙蝠的物种积累曲线没有达到渐近曲线，表明我们的抽样是不完整的。我们的数据显示，物种丰富性和丰富受升高的影响，物种丰富的影响可能取决于栖息地类型和栖息地食物和合适的栖息地等资源的可用性。我们的数据还有助于更好地描述当地的动物区，并填补了高海拔地点的物种分布的差距。

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