利用仓鸮颗粒长期监测欧洲草原上常见的斑足蟾蜍活动。

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Lukas Landler, Katharina Stefke
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引用次数: 0

摘要

背景:世界上三分之一的两栖动物物种受到威胁,因此需要有效的监测工作。采用隐蔽生活方式的两栖动物,如常见的蹼足蟾蜍,经常被标准的调查工作遗漏。在仓鸮的反刍颗粒中可以发现足部蟾蜍,这为估计蟾蜍的活动提供了一种有效的方法。在我们的研究中,我们分析了2004年至2016年奥地利东部草原景观中大脚蟾蜍遗骸的频率。方法:采用自动模型选择程序,结合零膨胀误差泊松分布的GLM分析,对仓鸮丸中褐藻的存在进行分析。所有的分析都是在统计软件R中完成的,复制我们的结果的脚本可以在本出版物中找到。我们的方法可以为其他研究人员提供一个模板,用于他们自己的颗粒数据。结论:我们的分析表明,普通掌足蟾蜍的活动主要受降雨的影响,而一年中的时间和温度的影响较小但显著。有趣的是,我们的数据证实了夏季有可能出现第二次繁殖期,这是由暴雨引发的。在观察的年份和地点没有迹象表明种群减少。我们的研究表明,仓鸮颗粒可以有效地用于评估一个地区的pelobatid活动。这可能为两栖动物的保护管理提供一个有用的监测工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Long-term monitoring of common spadefoot toad activity in a European steppe using barn owl pellets.

Long-term monitoring of common spadefoot toad activity in a European steppe using barn owl pellets.

Long-term monitoring of common spadefoot toad activity in a European steppe using barn owl pellets.

Background: One third of the worldwide amphibian species are threatened, therefore, efficient monitoring efforts are needed. Amphibians which adopt a hidden lifestyle, such as the common spadefoot toad, are often missed with standard surveying efforts. Spadefoot toads can be identified in regurgitated pellets of the barn owl, which provides an effective way to estimate toad activity. In our study we analyzed frequency of spadefoot toad remains from 2004 to 2016 in a steppe landscape in eastern Austria.

Methods: We used an automated model selection procedure together with a GLM analysis using a zero inflated error Poisson distribution, to analyze the presence of Pelobates fuscus in barn owl pellets. All analyses were done in the statistical software R, and the scripts to reproduce our results are available within this publication. Our approach may provide a template for other researchers to use for their own pellet data.

Conclusions: Our analysis suggested that activity of the common spadefoot toad is mainly influenced by rainfalls, while time of the year and temperature had small but significant effects. Interestingly, our data confirmed the possibility of a second breeding period in summer, triggered by heavy rainfalls. There were no indications for a population decrease in the observed years and locations. Our study shows that barn owl pellets can be used effectivley to assess pelobatid activity in an area. This might constitute a useful monitoring tool for conservation management for amphibians.

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来源期刊
Accounts of Chemical Research
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.
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