Multi-species occupancy modeling provides novel insights into amphibian metacommunity structure and wetland restoration

A fundamental goal of community ecology is to understand species-habitat relationships and how they shape metacommunity structure. Recent advances in occupancy modeling enable habitat relationships to be assessed for both common and rare species within metacommunities using multi-species occupancy models (MSOM). These models account for imperfect species detection and offer considerable advantages over other analytical tools commonly used for community analyses under the elements of metacommunity structure (EMS) framework. Here, we demonstrate that MSOM can be used to infer habitat relationships and test metacommunity theory, using amphibians. Repeated frog surveys were undertaken at 55 wetland sites in eastern Australia. We detected 11 frog species from three families (Limnodynastidae, Myobatrachidae and Pelodryadidae). The rarest species was detected at only one site whereas the most common species was detected at 42 sites (naïve occupancy rate: 0.02 – 0.76). Two models were assessed ...

群落生态学（community ecology）的核心目标之一是阐明物种与栖息地的关联关系，以及二者如何塑造集合群落（metacommunity）结构。近年来，占有模型（occupancy modeling）的研究进展使得我们能够借助多物种占有模型（multi-species occupancy models, MSOM），对集合群落内常见与稀有物种的栖息地关联进行评估。此类模型可考量物种检测的不完全性，相较于集合群落结构要素（elements of metacommunity structure, EMS）框架下常用于群落分析的其他分析工具，具备显著优势。本研究以两栖动物为研究对象，验证了MSOM可用于推断栖息地关联并检验集合群落理论。研究团队在澳大利亚东部的55处湿地样点开展了重复蛙类调查，共记录到隶属于3个科（Limnodynastidae、Myobatrachidae与Pelodryadidae）的11种蛙类。其中最稀有的物种仅在1处样点被检测到，而最常见的物种则在42处样点被检出（朴素占有率：0.02 – 0.76）。本研究共评估了两类模型……