Effective spatial scales for evaluating environmental determinants of population density in Yakushima macaques
Effective spatial scales for evaluating environmental determinants of population density in Yakushima macaques
复制标题
评估屋久岛猕猴种群密度环境决定因素的有效空间尺度
DOI：
--
复制
发表时间：
2015
影响因子：
2.4
通讯作者：
Yoshimi Agetsuma
中科院分区：
文献类型：
--
作者：
N. Agetsuma;R. Koda;R. Tsujino;Yoshimi Agetsuma
野生动物物种的种群密度往往与栖息地的资源生产力相关。然而，由于人类影响的增加，野生动物的密度已大大改变。为了有效地保护，我们必须首先确定影响野生动物密度的重要因素，然后确定应该对这些因素进行管理的区域范围。在这里，我们提出了一个完成这两项任务的协议。人们认为对野生动物的主要威胁是栖息地改变和狩猎，外来食肉动物的增加是最近出现的一个问题。在这里，我们研究了这些人为干扰以及自然因素对屋久岛猕猴（Macaca fuscata yakui）当地密度的影响。我们使用 403 个自动摄像机的数据调查了猕猴栖息地 30 个地点的密度。我们量化了自然植被（阔叶林、针叶/阔叶混交林等）、植被改变（林地和农田）、狩猎压力和野家犬（Canisamilis）密度的影响。在多个空间尺度（距相机位置半径 150 至 3,600 米之间）分析每种植被类型的影响，以确定解释猕猴密度的最佳尺度（有效空间尺度）。使用模型选择程序（广义线性混合模型）来检测影响猕猴密度的重要因素。我们发现最有效的空间尺度是半径 400 米，该尺度与猕猴的群体范围大小相对应。在这个尺度上，阔叶林的数量被选为猕猴密度的正因子，而混交林和林业面积被选为猕猴密度的负因子。这项研究证明了在适当的空间尺度上同时评估野生动物种群密度的所有可能因素的重要性。是。 J.普里马托尔。 77:152–161, 2015。© 2014 Wiley periodicals, Inc.
Population densities of wildlife species tend to be correlated with resource productivity of habitats. However, wildlife density has been greatly modified by increasing human influences. For effective conservation, we must first identify the significant factors that affect wildlife density, and then determine the extent of the areas in which the factors should be managed. Here, we propose a protocol that accomplishes these two tasks. The main threats to wildlife are thought to be habitat alteration and hunting, with increases in alien carnivores being a concern that has arisen recently. Here, we examined the effect of these anthropogenic disturbances, as well as natural factors, on the local density of Yakushima macaques (Macaca fuscata yakui). We surveyed macaque densities at 30 sites across their habitat using data from 403 automatic cameras. We quantified the effect of natural vegetation (broad‐leaved forest, mixed coniferous/broad‐leaved forest, etc.), altered vegetation (forestry area and agricultural land), hunting pressure, and density of feral domestic dogs (Canis familiaris). The effect of each vegetation type was analyzed at numerous spatial scales (between 150 and 3,600‐m radii from the camera locations) to determine the best scale for explaining macaque density (effective spatial scale). A model‐selection procedure (generalized linear mixed model) was used to detect significant factors affecting macaque density. We detected that the most effective spatial scale was 400 m in radius, a scale that corresponded to group range size of the macaques. At this scale, the amount of broad‐leaved forest was selected as a positive factor, whereas mixed forest and forestry area were selected as negative factors for macaque density. This study demonstrated the importance of the simultaneous evaluation of all possible factors of wildlife population density at the appropriate spatial scale. Am. J. Primatol. 77:152–161, 2015. © 2014 Wiley Periodicals, Inc.
赤道几内亚大陆枪支狩猎对昼行灵长类动物的影响
影响因子：
2.5
作者：
Kümpel N
通讯作者：
Kümpel N
影响因子：
5.7
作者：
Rowcliffe, J. Marcus;Field, Juliet;Carbone, Chris
通讯作者：
Carbone, Chris