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环境异质性作为两种同性动物物种密度的差异驱动因素

Stefania Gasperini¹, Francesca Napoleone², Paola Bartolommei¹

¹Fondazione Ethoikos Convento dell'Osservanza snc Siena Italy.

Ecology and evolution

|November 13, 2025

概括

环境异质性影响物种多样性. 森林专家和通用主义者动物对森林结构变化做出了不同的反应,专家倾向于树直径变化,通用主义者倾向于多样化的底层.

科学领域:

生态生态学生态生态学
林业林业林业林业林业
野生动物保护野生动物保护

背景情况:

环境异质性影响物种多样性和种群动态.
由于资源稀缺,息地专家可能会在高度异质的环境中下降.

研究的目的:

调查森林专家 (Apodemus flavicollis) 和一般主义者 (Apodemus sylvaticus) 动物物种对环境异质性的不同反应.
分析楼层和地下层的异质性如何影响这两种同情的动物物种的密度.

主要方法:

使用空间显式捕获-重新捕获分析,在12个森林网格中估计了三年的动物密度.
环境异质性的量化使用支架结构属性,植物物种组成和功能特征.
线性混合模型测试了物种密度和异质成分之间的关系.

主要成果:

一般类物种 (A. sylvaticus) 的密度略有下降,随着树木物种多样性的增加 (层层异质).
专科物种 (A. flavicollis) 的密度与树直径异质性有积极的关联.
较高的地下层异质性,与coppicing相关,支持一般主义物种的较高密度,而专家没有显著的反应.

结论:

种类的利基范围显著影响它们对环境异质性的反应.
森林管理实践,如树木采伐,可以对专家和通用物种种群产生不同的影响.
了解这些多样化的反应对于预测生物多样性模式和森林生态系统管理至关重要.

关键词:

植物功能多样性植物功能多样性植物的功能特征植物的功能特征小哺乳动物小哺乳动物与树相关的微生态息地植被结构植物结构

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