Data from: Using spatial capture–recapture to elucidate population processes and space-use in herpetological studies

The cryptic behavior and ecology of herpetofauna make estimating the impacts of environmental change on demography difficult; yet, the ability to measure demographic relationships is essential for elucidating mechanisms leading to the population declines reported for herpetofauna worldwide. Recently developed spatial capture–recapture (SCR) methods are well suited to standard herpetofauna monitoring approaches. Individually identifying animals and their locations allows accurate estimates of population densities and survival. Spatial capture–recapture methods also allow estimation of parameters describing space-use and movement, which generally are expensive or difficult to obtain using other methods. In this paper, we discuss the basic components of SCR models, the available software for conducting analyses, and the experimental designs based on common herpetological survey methods. We then apply SCR models to Red-backed Salamander (Plethodon cinereus), to determine differences in density, survival, dispersal, and space-use between adult male and female salamanders. By highlighting the capabilities of SCR, and its advantages compared to traditional methods, we hope to give herpetologists the resource they need to apply SCR in their own systems.两栖爬行类（herpetofauna）的隐蔽行为与生态特征，使得评估环境变化对其种群统计学的影响极具挑战；然而，量化种群统计关系的能力，是阐明全球范围内报道的两栖爬行类种群衰退背后机制的关键所在。近年来新兴的空间捕获-再捕获（spatial capture–recapture, SCR）方法，非常适配标准的两栖爬行类监测方案。对动物个体及其栖息位置进行精准识别，可准确估算种群密度与存活率。空间捕获-再捕获方法还可用于估算描述物种空间利用与移动的参数，而这类参数通常难以通过其他方法获取，且获取成本高昂。本文首先阐述了SCR模型的基本构成、可用于相关分析的软件工具，以及基于常用两栖爬行动物学调查方法的实验设计方案。随后，我们将SCR模型应用于红背蝾螈（Plethodon cinereus），以探究成年雄性与雌性蝾螈在种群密度、存活率、扩散能力以及空间利用模式上的差异。本文通过梳理SCR的功能优势及其相较于传统方法的优越性，旨在为两栖爬行动物学家提供可在其研究体系中应用SCR方法的参考资源。