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婆罗洲雨林的猩猩现在在地面活动更频繁之因

标签:猩猩
摘要 : 一个国际研究组在新研究中表明,猩猩对生活环境剧烈变化的适应能力可能要比人们以前所认为的更强。这一发现为所有年龄的雄性和雌性猩猩在地面上行走提供证据。相关文章发表于2014年2月13日的《Scientific Reports》杂志上。
Nature子刊:婆罗洲雨林的猩猩现在在地面活动更频繁之因

婆罗洲雨林的猩猩现在在地面活动更频繁之因

一个国际研究组在新研究中表明,猩猩对生活环境剧烈变化的适应能力可能要比人们以前所认为的更强。这一发现为所有年龄的雄性和雌性猩猩在地面上行走提供证据。相关文章发表于2014年2月13日的《scientific Reports》杂志上。

猩猩从它们在婆罗洲雨林的树上生活环境走下来可能要比以前的传闻更频繁。一项新研究提供了所有年龄的雄性和雌性猩猩在地面上行走的证据。该研究表明,猩猩对生活环境剧烈变化的适应能力可能要比人们以前所认为的更强。

婆罗洲猩猩(Pongo pygmaeus)是世界最大的树栖哺乳动物。有关其在地面上行为的记录很少,并且往往与生活环境受到扰动有关。

Marc Ancrenaz及同事利用在婆罗洲16个地点通过隐藏相机捕捉到的全面数据对猩猩在地上的活动进行了一次大规模分析。作者的意图是,评估猩猩从树上下来在地面上行走的程度以及人类造成的扰动是否会影响这种行为。

所有年龄-性别类别的猩猩都被发现在地面上活动,其中那些身材高大、像长着凸缘的雄性(即那些长着独特脸盘、喉囊和长毛的雄性)在地面上出现得最频繁。另外,猩猩在原始森林以及严重退化的生境中都被发现在地面上活动,说明人类对林冠的破坏可能会影响它们在地面上活动,但却并不是造成这种行为的惟一原因。

这些发现表明,地面活动在婆罗洲猩猩的自然行为中所起作用可能要比人们所预料的更大。

原文摘要:

Coming down from the trees: Is terrestrial activity in Bornean orangutans natural or disturbance driven?

Marc Ancrenaz, Rahel Sollmann, Erik Meijaard, Andrew J. Hearn, Joanna Ross, Hiromitsu Samejima, Brent Loken, Susan M. Cheyne, Danica J. Stark, Penny C. Gardner, Benoit Goossens, Azlan Mohamed, Torsten Bohm, Ikki Matsuda, Miyabi Nakabayasi, Shan Khee Lee, Henry Bernard, Jedediah Brodie, Serge Wich, Gabriellafredriksson et al.

 

The orangutan is the world's largest arboreal mammal, and images of the red ape moving through the tropical forest canopy symbolise its typical arboreal behaviour. Records of terrestrial behaviour are scarce and often associated with habitat disturbance. We conducted a large-scale species-level analysis of ground-based camera-trapping data to eva1uate the extent to which Bornean orangutans Pongo pygmaeus come down from the trees to travel terrestrially, and whether they are indeed forced to the ground primarily by anthropogenic forest disturbances. Although the degree of forest disturbance and canopy gap size influenced terrestriality, orangutans were recorded on the ground as frequently in heavily degraded habitats as in primary forests. Furthermore, all age-sex classes were recorded on the ground (flanged males more often). This suggests that terrestrial locomotion is part of the Bornean orangutan's natural behavioural repertoire to a much greater extent than previously thought, and is only modified by habitat disturbance. The capacity of orangutans to come down from the trees may increase their ability to cope with at least smaller-scale forest fragmentation, and to cross moderately open spaces in mosaic landscapes, although the extent of this versatility remains to be investigated.

来源: Scientific Reports 浏览次数:11

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