Selective logging shows no impact on the dietary breadth of the fawn leaf-nosed bat ( Hipposideros cervinus )
Selective logging shows no impact on the dietary breadth of the fawn leaf-nosed bat ( Hipposideros cervinus )
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选择性伐木对小鹿叶鼻蝠 ( Hipposideros cervinus ) 的饮食范围没有影响
DOI：
10.1101/2021.07.30.453964
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Hemprich-Bennett D
中科院分区：
文献类型：
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作者：
Hemprich-Bennett D
伐木活动使热带大片地区的森林生境退化，但对支撑森林生态系统的营养相互作用的影响知之甚少。DNA元条形码为研究这种相互作用提供了一种宝贵的工具，使分析的规模和分辨率远远超过以前。我们分析了食虫小鹿叶鼻蝙蝠Hipposideros cervinus在婆罗洲的森林干扰梯度的饮食，使用一个数据集的生态相互作用，从前所未有的数量蝙蝠衍生的粪便样本。蝙蝠主要消耗昆虫的订单鳞翅目，蜚蠊目，双翅目和鞘翅目，其饮食的分类组成保持相对一致的网站，无论伐木干扰。在每个伐木处理消耗的猎物的丰富度差异不大，这表明该物种的栖息地退化的潜在弹性。事实上，蝙蝠消耗了丰富的猎物项目，需要密集的采样来可靠地比较多个地点的摄食生态，无论使用的生物信息学程序。
Logging activities degrade forest habitats across large areas of the tropics, but the impacts on trophic interactions that underpin forest ecosystems are poorly understood. DNA metabarcoding provides an invaluable tool to investigate such interactions, allowing analysis at a far greater scale and resolution than has previously been possible. We analysed the diet of the insectivorous fawn leaf-nosed batHipposideros cervinusacross a forest disturbance gradient in Borneo, using a dataset of ecological interactions from an unprecedented number of bat-derived faecal samples. Bats predominantly consumed insects from the orders Lepidoptera, Blattodea, Diptera and Coleoptera, and the taxonomic composition of their diet remained relatively consistent across sites regardless of logging disturbance. There was little difference in the richness of prey consumed in each logging treatment, indicating potential resilience of this species to habitat degradation. In fact, bats consumed a high richness of prey items, and intensive sampling is needed to reliably compare feeding ecology over multiple sites regardless of the bioinformatic procedures used.