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在本地和入侵性小哺乳动物之间共享空间:对塞内加尔的共生社区的研究

Laurent Granjon¹, Emanuelle Artige¹, Khalilou Bâ²

¹CBGP, IRD, INRAE, CIRAD, Montpellier SupAgro, Univ Montpellier Montpellier France.

Ecology and evolution

|September 25, 2023

概括

非洲的城市化推动了像家鼠和黑老鼠这样的入侵性小哺乳动物主导本地物种. 这些共生社区共享息地,引发了人们对动物传染病和物种相互作用的担忧.

科学领域:

生态生态学生态生态学
城市生态城市生态学
哺乳动物学哺乳动物学

背景情况:

非洲的快速城市化正在改变息地,并促进本地和入侵性小型哺乳动物物种的繁殖.
这些开始性小哺乳动物可以引起与人类有关的不便,并充当动物传染病的储.
了解这些改造环境中的物种相互作用对于管理潜在风险至关重要.

研究的目的:

研究塞内加尔开始性小哺乳动物群落的组成和空间分布.
分析主要的入侵物种和本地物种之间的息地偏好和利基区分.
评估共同发生的模式,并预测正在进行的全球变化下的社区动态.

主要方法:

在塞内加尔的各种人类定居点中采用了活捕捉和息地表征.
记录了物种的丰度,分布和息地联系.
在统计学上分析了利基范围,利基重叠和并发模式.

主要成果:

确定了七种主要的小型哺乳动物物种,入侵性家鼠 (Mus musculus) 和黑鼠 (Rattus rattus) 在数量上占主导地位.
本地鱼Crocidura olivieri广泛分布,而其他本地动物不那么丰富或局部.
观察到息地偏好的显著差异,特别是在室内小鼠,黑鼠和Mastomys natalensis之间.
在物种之间发现了高度的利基重叠,具有不同的局部共发生模式 (聚合和分离).

结论:

侵入性物种,特别是室内老鼠,比一些本地物种具有更广的利基范围.
塞内加尔的大型小型哺乳动物群落是由城市化所塑造的,入侵物种扮演着主导角色.
该研究提供了对物种相互作用和息地共享的见解,为全球环境变化中社区演变的预测提供了信息.

关键词:

西非西非是西非的一个地区.社区生态社区生态学同时发生的共发生.动物动物动物螺旋的螺旋是什么意思

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