Relating bat species presence to simple habitat measures in a central Appalachian forest
Relating bat species presence to simple habitat measures in a central Appalachian forest
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DOI：
10.1016/j.biocon.2005.07.003
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发表时间：
2005-12-01
影响因子：
5.9
通讯作者：
Johnson, JB
中科院分区：
文献类型：
--
作者：
Ford, WM;Menzel, MA;Johnson, JB
2001年5月至2003年6月，我们在西弗吉尼亚州阿巴拉契亚山脉中部的Fernow实验森林（FEF）使用Anabat声学设备对63个地点的蝙蝠群落进行了主动采样，采用检测和非检测指标，将物种存在与简单的栖息地测量（如靠近河流地区、森林冠层覆盖、森林冠层间隙宽度和森林冠层高度）联系起来。我们在FEF上发现了8种物种，包括濒临灭绝的Myotis sodalis。河鼠、绿足鼠、粟足鼠和黄下Pipistrellus在河岸地区的分布比在旱地地区的分布要多。单因素比较和多元logistic回归模型均表明，随着林冠盖度的增加或林冠间隙大小的减小，聚类适应的觅食物种（如M. septentrionalis和M. sodalis）被检测到的概率增大，而开放适应的觅食物种（如Eptesicus fuscus和L. cinereus）被检测到的概率则相反。未识别的蝙蝠回声定位序列占已识别物种回声定位序列的总体比例与森林冠层覆盖增加的高地地点有关，表明在杂乱和非杂乱生境之间存在抽样偏差。然而，如果有足够的样本点，使用声学探测的蝙蝠群落调查显示，在阿巴拉契亚山脉中部等崎岖地区，传统的雾网调查工作在后勤上往往很困难，而且范围不够广，因此能够迅速建立普遍的栖息地联系。此外，这些声学调查还可以帮助研究人员对特定物种的觅食栖息地进行预测测绘，并允许研究人员对详细的蝙蝠栖息地关系制定可测试的假设，并通过无线电遥测技术进行最终测试。(c) 2005 Elsevier Ltd版权所有。
We actively sampled the bat community at 63 sites using detection and non-detection metrics on the Fernow Experimental Forest (FEF) in the central Appalachians of West Virginia using Anabat acoustical equipment May-June 2001-2003 to relate species presence to simple habitat measures such as proximity to riparian areas, forest canopy cover, forest canopy gap width, and forest canopy height. We acoustically detected eight species on the FEF, including the endangered Myotis sodalis. The presence of Lasiurus cinereus, M. lucifugus, M. sodalis, and Pipistrellus subflavus was associated more with riparian areas than upland areas. Both univariate comparisons and multiple logistic regression modeling showed that the probability that clutter-adapted foraging species such as M. septentrionalis and M. sodalis would be detected was greater as forest canopy cover increased or forest canopy gap size decreased, whereas the opposite was true for open-adapted foraging species such as Eptesicus fuscus and L. cinereus. The overall proportion of unidentifiable bat echolocation sequences to those identified to species was related to upland sites with increasing forest canopy cover indicating some sampling bias between cluttered and uncluttered habitats. However, given sufficient sample points, bat community surveys using acoustical detection show the ability to quickly develop generalized habitat associations for rugged areas such as the central Appalachians where traditional mist-net survey efforts often are logistically difficult and are lacking in scope. Moreover, these acoustical surveys also could lend themselves to species-specific predictive mapping of foraging habitat as well as allowing researchers to formulate testable hypotheses about detailed bat habitat relationships to be definitively tested with radio-telemetry techniques. (c) 2005 Elsevier Ltd. All rights reserved.