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首页> 外文期刊>Conservation Biology >Bat diversity and abundance as indicators of disturbance in neotropical rainforests
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Bat diversity and abundance as indicators of disturbance in neotropical rainforests

机译：蝙蝠的多样性和丰度是新热带雨林扰动的指标

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Evaluating the degree of disturbance of any region to determine its relative importance for conservation purposes requires procedures that are relatively inexpensive and that yield accurate results fast. Because bats are abundant diverse, and easy to sample, especially in the Neotropical rainforest, they fulfill several of the requirements of indicator species as identified in the literature. For 10 months we sampled bat communities in the Selva Lacandona in Chiapas, Mexico, at 15 sites representing five habitats. We also measured 10 variables representing vegetation structure and diversity at each site. With fuzzy-set techniques we produced a gradient classification of disturbance for the 15 sites based on the vegetation data. We explored the relationship between vegetation conditions, described as the membership degrees in the construct "fuzzy forest set" (the complementary fuzzy set of "disturbance"), and four bat community variables. Bat species richness, number of rare bat species, and the bat diversity index were positively correlated with the vegetation scores, and relative abundance of the most abundant bat species was negatively correlated with vegetation scores. A high number of phyllostomine species in a community is a good indicator of low levels of disturbance. Although a single indicator group will probably not be sufficient for decision-making processes in conservation, evaluating bat populations may be a good first step in assessing an area's conservation value especially in rainforest regions. [References: 47]
机译：要评估任何区域的干扰程度，以确定其对保护目的的相对重要性，就需要相对便宜且可快速产生准确结果的程序。由于蝙蝠种类繁多且易于采样，尤其是在新热带雨林中，因此它们满足了文献中确定的指示物种的若干要求。在10个月中，我们在墨西哥恰帕斯州的塞尔瓦拉坎多纳（Selva Lacandona）的15个代表五个栖息地的地点采样了蝙蝠群落。我们还测量了10个代表每个站点的植被结构和多样性的变量。利用模糊集技术，我们基于植被数据对15个站点进行了干扰的梯度分类。我们探索了植被条件与四个蝙蝠群落变量之间的关系，植被条件被描述为构造“模糊森林集”（“干扰”的互补模糊集）中的隶属度。蝙蝠物种的丰富度，稀有蝙蝠物种的数量和蝙蝠多样性指数与植被得分呈正相关，而最丰富的蝙蝠物种的相对丰度与植被得分呈负相关。一个社区中大量的叶绿素物种是低干扰水平的良好指示。尽管单个指标组可能不足以进行保护方面的决策，但是评估蝙蝠种群可能是评估该地区的保护价值的良好第一步，尤其是在雨林地区。 [参考：47]

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