Chapter 3: The Mammals of the Mingan Mountains, Luzon: Evidence for a New Center of Mammalian Endemism

Chapter 3: The Mammals of the Mingan Mountains, Luzon: Evidence for a New Center of Mammalian Endemism
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第三章:吕宋岛明安山的哺乳动物:哺乳动物特有现象新中心的证据

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发表时间:
2011
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通讯作者:
E. Rickart
E. Rickart
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作者:
D. Balete;Phillip A. Alviola;M. Duya;Melizar V. Duya;L. Heaney;E. Rickart

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摘要2006年5月至8月,我们对吕宋岛马德雷山脉中部奥罗拉省和新伊瓦埃西亚省明安山最高峰的哺乳动物进行了海拔样带调查,记录到35种哺乳动物。这些蝙蝠包括1只地鼠(索瑞科)、6只果蝠(翼蝙科)、1只鬼蝙蝠(巨头蝠科)、3只马蹄蝠(犀牛科)、3只圆叶蝙蝠(马蜂科)、4只黄蝙蝠(夜蝙蝠)、1只猕猴(天牛科)、12只老鼠(鼠科)、2只果子狸(蜂科)、1只野猪(水猪科)和1只鹿(鹿科)。我们对这个鲜为人知的小山脉的调查包括发现了两种新的森林老鼠(Apomys),一种新的仓鼠(Archboldomys),一种可能的新的仓鼠(Rhynchomys),以及一种不明的管鼻蝙蝠(Murina)。蝙蝠的物种丰富度随着海拔的升高而降低,而本地非迁徙小型哺乳动物的物种丰富度随着海拔的升高而增加,在1681和1785 m处逐渐下降。只有两种小型森林老鼠(无足鼠和肌肉鼠)是在地面上捕获的;其他不会游动的小型哺乳动物几乎都是在地面上捕获的。明安山有三到四个特有物种,显然是哺乳动物特有物种的重要中心,值得保护。
Abstract We conducted an elevational transect survey of mammals on the highest peak in the Mingan Mountains of Aurora and Nueva Ecija provinces in the central Sierra Madre Range of Luzon from May to August 2006 and documented 35 species of mammals. These included one shrew (Soricidae), six fruit bats (Pteropodidae), one ghost bat (Megadermatidae), three horseshoe bats (Rhinolophidae), three roundleaf bats (Hipposideridae), four evening bats (Vespertilionidae), one macaque (Cercopithecidae), 12 mice and rats (Muridae), two civets (Viverridae), one wild pig (Suidae), and one deer (Cervidae). Our survey of this small, poorly known mountain range included the discovery of two new species of forest mice (Apomys), a new species of shrew-mouse (Archboldomys), a probable new species of shrew-rat (Rhynchomys), and an unidentified species of tube-nosed bat (Murina). Species richness of bats decreased with increasing elevation, whereas that for native non-volant small mammals increased with increasing elevation up to 1677 m, then declined at 1681 and 1785 m. Statistically significant diel activity and bait preferences were observed among the native non-volant small mammals. Only the two species of small forest mice (Apomys microdon and A. musculus) were captured exclusively above ground; the other non-volant small mammals were nearly always captured on the ground. The Mingan Mountains, with either three or four endemic species, are clearly a significant center of mammalian endemism, deserving of conservation.