Population density estimation of meso-mammal carnivores using camera traps without the individual recognition in Maduru Oya National Park, Sri Lanka

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-10-04 DOI:10.4404/HYSTRIX-00452-2021

D. Jayasekara, D. Mahaulpatha, S. Miththapala

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引用次数: 0

Abstract

Reliable population estimates are crucial for the conservation and management of faunal species. Population data of meso-mammal carnivores in Sri Lanka, as well as elsewhere in the world, is scarce. We estimated population densities of meso-mammal carnivores in Maduru Oya Na- tional Park (MONP) using Random Encounter Model (REM) and Camera Trap Distance Sampling (CTDS) methods in this study. A total of 3402 camera trapping days yielded 3357 video captures of 69 diﬀerent animal taxa including 658 video captures of meso-mammal carnivores. In this study, we recorded all 12 meso-mammal carnivore species found on the island. The two density estim- ate methods generated similar population estimates indicating that both methods are compatible to be applied in tropical forest habitats for meso-carnivore species. We identify MONP as an area with high richness for the focal species. The study also generated movement speed, activity patterns, activity levels, and day ranges for the focal species, which will be useful for future research. We discuss the population density estimates for diﬀerent meso-carnivore species and the use of REM and CTDS density estimation methods and their applicability to a tropical meso-carnivore community.

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在没有个体识别的情况下使用相机陷阱估算斯里兰卡马杜鲁奥亚国家公园中食肉动物的种群密度

可靠的种群估计对于保护和管理动物物种至关重要。在斯里兰卡以及世界其他地方，中哺乳食肉动物的种群数据很少。本文采用随机相遇模型(REM)和相机陷阱距离采样(CTDS)方法估算了马杜鲁Oya Na国家公园(MONP)中食性哺乳动物的种群密度。在3402天的时间里，共捕获了69个不同动物类群的3357个视频，其中包括658个中哺乳食肉动物的视频。在这项研究中，我们记录了岛上发现的所有12种中哺乳动物食肉动物。两种密度估计方法得到的种群估计结果相似，表明两种方法都适用于热带森林生境中食肉动物。我们认为MONP是焦点物种丰富度较高的地区。该研究还得出了焦点物种的运动速度、活动模式、活动水平和日活动范围，这将对未来的研究有用。本文讨论了不同中食肉动物种群密度估算方法的应用，以及REM和CTDS密度估算方法在热带中食肉动物群落中的适用性。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.