Density Estimation in Terrestrial Chelonian Populations Using Spatial Capture–Recapture and Search–Encounter Surveys

IF 0.8 4区生物学 Q3 ZOOLOGY

Journal of Herpetology Pub Date : 2022-09-26 DOI:10.1670/21-016

J. Andrew Royle, Haley Turner

引用次数: 0

Abstract

Abstract.— Having an accurate estimate of population size and density is imperative to the conservation of chelonian species and a central objective of many monitoring programs. Capture–recapture and related methods are widely used to obtain information about population size of chelonians. However, classical capture–recapture methods have strict spatial sampling requirements and do not account for lack of geographic closure caused by movement of individuals in and out of the surveyed landscape. Newly developed spatial capture–recapture (SCR) models address these limitations by specification of explicit models for spatial sampling as well as the spatial distribution of individuals in the population. Spatial capture–recapture models have not yet been applied to the study of chelonian populations. Here we demonstrate their application to a population of box turtles in Maryland that has been studied for 75 yr. Results support dramatic declines in population size of box turtles since the 1940s.

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利用空间捕获-再捕获和搜索-遭遇调查估算陆生龟种群的密度

摘要。——准确估计种群规模和密度对保护龟类物种至关重要，也是许多监测项目的中心目标。捕获-再捕获及相关方法被广泛用于获取有关螯蟹种群规模的信息。然而，经典的捕获-再捕获方法具有严格的空间采样要求，并且没有考虑到由于个体进出调查景观而导致的地理封闭性不足。新开发的空间捕获-再捕获（SCR）模型通过指定空间采样的显式模型以及种群中个体的空间分布来解决这些限制。空间捕获-再捕获模型尚未应用于车龙种群的研究。在这里，我们展示了它们在马里兰州箱龟种群中的应用，该种群已经研究了75年。结果支持自20世纪40年代以来箱龟种群规模的急剧下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Herpetology 生物-动物学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： The Journal of Herpetology accepts manuscripts on all aspects on the biology of amphibians and reptiles including their behavior, conservation, ecology, morphology, physiology, and systematics, as well as herpetological education. We encourage authors to submit manuscripts that are data-driven and rigorous tests of hypotheses, or provide thorough descriptions of novel taxa (living or fossil). Topics may address theoretical issues in a thoughtful, quantitative way. Reviews and policy papers that provide new insight on the herpetological sciences are also welcome, but they must be more than simple literature reviews. These papers must have a central focus that propose a new argument for understanding a concept or a new approach for answering a question or solving a problem. Focus sections that combine papers on related topics are normally determined by the Editors. Publication in the Long-Term Perspectives section is by invitation only. Papers on captive breeding, new techniques or sampling methods, anecdotal or isolated natural history observations, geographic range extensions, and essays should be submitted to our sister journal, Herpetological Review.