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Forest patch characteristics affect reptile occurrence in north‐western Madagascar
Austral Ecology ( IF 1.5 ) Pub Date : 2021-02-14 , DOI: 10.1111/aec.13007
Alexandra M. Evans 1 , Jason P. Marshal 1 , Graham J. Alexander 1
Affiliation  

Characterising species–landscape associations is relevant for conservation planning and management in response to environmental transformation. The occurrence of reptiles is linked to landscape structure that allows for thermoregulation, shelter and feeding, but the relative importance of these factors is unknown for many tropical and subtropical species. We used community‐level occupancy modelling and remote sensing to investigate the effects of vegetation structure and anthropogenic development on reptile occurrence in a Malagasy dry forest during the dry season (June and July). The occupancy estimates for some species revealed that species occupancy increased for more densely vegetated sites situated closer to the forest edge. The proximity of anthropogenic transformation did not significantly affect the occurrence of species except for Uroplatus guentheri which showed preference for sites away from settlements. Because most species and those most sensitive to habitat transformation were associated with edges of intact forest patches with denser green vegetation, these areas should form the focus of efforts to conserve reptiles in tropical dry forests. We also demonstrate how setting and scale can affect how habitat‐use patterns are interpreted and the importance of local, species‐specific studies.

中文翻译:

马达加斯加西北部的森林斑块特征影响爬行动物的发生

物种-景观协会的特征对于响应环境转变的保护规划和管理非常重要。爬行动物的发生与景观结构有关,可以进行温度调节,庇护和觅食,但是对于许多热带和亚热带物种而言,这些因素的相对重要性尚不明确。我们使用社区级别的居住模型和遥感技术来研究干旱季节(6月和7月)的马达加斯加干旱森林中植被结构和人为发展对爬行动物发生的影响。对某些物种的占有率估计表明,靠近森林边缘的植被更密集的地区,物种的占有率增加了。人为转化的邻近性对物种的发生没有显着影响,除了Uroplatus guentheri表现出对远离定居点的遗址的偏爱。因为大多数物种和对生境转变最敏感的物种都与完整的森林斑块边缘和茂密的绿色植被有关,所以这些地区应成为保护热带干燥森林中爬行动物的重点。我们还展示了环境和规模如何影响栖息地使用方式的解释方式以及当地物种特定研究的重要性。
更新日期:2021-04-21
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