A Case for Using Plethodontid Salamanders for Monitoring Biodiversity and Ecosystem Integrity of North American Forests
A Case for Using Plethodontid Salamanders for Monitoring Biodiversity and Ecosystem Integrity of North American Forests
复制标题
使用无齿蝾螈监测北美森林生物多样性和生态系统完整性的案例
DOI：
10.1046/j.1523-1739.2001.015003558.x
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发表时间：
2001
影响因子：
6.3
通讯作者：
S. Droege
中科院分区：
文献类型：
--
作者：
H. Welsh;S. Droege
摘要：Plethodontidae科的陆地蝾螈具有独特的属性，使它们成为森林栖息地生物多样性和生态系统完整性的极好指标。它们的寿命长，领土面积小，网站保真度，自然和人为扰动的敏感性，倾向于发生在高密度，和低采样成本意味着plethodontid蝾螈的计数提供了许多优势，比其他北美森林生物的计数指示环境变化。此外，它们在生理上与小气候和演替过程密切相关，这些过程影响许多其他亲水但难以研究的森林居住植物和动物的分布和丰度。生态系统过程，如水分循环，食物网动态和演替，以及相关的结构和小气候变化，都影响森林生物多样性，并已被证明会影响蝾螈种群。我们通过估计可用时间序列数据的变异系数（CV），确定了与plethodontid蝾螈采样相关的变异性。 变异系数的中位数表明，研究中个体数量的变异在Plethodontid（27%）中远低于鳞翅目（93%），雀形目鸟类（57%），小型哺乳动物（69%）或其他两栖动物（37-46%），这意味着Plethodontid蝾螈在监测长期森林健康方面比其他物种提供了重要的统计优势。
Abstract: Terrestrial salamanders of the family Plethodontidae have unique attributes that make them excellent indicators of biodiversity and ecosystem integrity in forested habitats. Their longevity, small territory size, site fidelity, sensitivity to natural and anthropogenic perturbations, tendency to occur in high densities, and low sampling costs mean that counts of plethodontid salamanders provide numerous advantages over counts of other North American forest organisms for indicating environmental change. Furthermore, they are tightly linked physiologically to microclimatic and successional processes that influence the distribution and abundance of numerous other hydrophilic but difficult‐to‐study forest‐dwelling plants and animals. Ecosystem processes such as moisture cycling, food‐web dynamics, and succession, with their related structural and microclimatic variability, all affect forest biodiversity and have been shown to affect salamander populations as well. We determined the variability associated with sampling for plethodontid salamanders by estimating the coefficient of variation (CV ) from available time‐series data. The median coefficient of variation indicated that variation in counts of individuals among studies was much lower in plethodontids (27%) than in lepidoptera (93%), passerine birds (57%), small mammals (69%), or other amphibians (37–46%), which means plethodontid salamanders provide an important statistical advantage over other species for monitoring long‐term forest health.