Effects of body size on estimation of mammalian area requirements
Effects of body size on estimation of mammalian area requirements
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DOI：
10.1111/cobi.13495
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发表时间：
2020-06-18
影响因子：
6.3
通讯作者：
Calabrese, Justin M.
中科院分区：
文献类型：
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作者：
Noonan, Michael J.;Fleming, Christen H.;Calabrese, Justin M.
准确地量化物种的面积需求是有效的区域保护的先决条件。这通常涉及收集有关感兴趣物种的跟踪数据，然后进行家域分析。问题是，跟踪数据的自相关性可能导致空间需求被严重低估。基于以前的工作，我们假设低估的幅度随体重而变化，这种关系可能具有严重的保护意义。为了评估这一假设的陆地哺乳动物，我们估计了全球定位系统（GPS）的位置从757个人在61个全球分布的哺乳动物物种的体重范围从0.4到4000公斤的家庭范围内的地区。然后，我们应用块交叉验证来量化经验家庭范围估计的偏差。哺乳动物的面积要求1，这意味着在质谱的上端，关系的标度发生了实质性变化。
Accurately quantifying species' area requirements is a prerequisite for effective area-based conservation. This typically involves collecting tracking data on species of interest and then conducting home-range analyses. Problematically, autocorrelation in tracking data can result in space needs being severely underestimated. Based on the previous work, we hypothesized the magnitude of underestimation varies with body mass, a relationship that could have serious conservation implications. To evaluate this hypothesis for terrestrial mammals, we estimated home-range areas with global positioning system (GPS) locations from 757 individuals across 61 globally distributed mammalian species with body masses ranging from 0.4 to 4000 kg. We then applied block cross-validation to quantify bias in empirical home-range estimates. Area requirements of mammals 1, meaning the scaling of the relationship changed substantially at the upper end of the mass spectrum.