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首页> 外文期刊>Ecological research >Species geographical co-occurrence and the effect of Grinnellian and Eltonian niche partitioning: The case of a Neotropical felid assemblage
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Species geographical co-occurrence and the effect of Grinnellian and Eltonian niche partitioning: The case of a Neotropical felid assemblage

机译：物种地理共生以及格林尼利和埃尔顿利基分区的影响：新热带猫科动物组合的案例

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摘要

Understanding local coexistence and broad-scale species co-occurrence patterns are central questions in ecology and macroecology. Niche theory relates both spatial scales by considering the resources (Eltonian niche) and conditions (Grinnellian niche) used by species and allow us to assess the contribution of these factors for species co-occurrence. Indeed, combining local field data on diet preferences and climatic variables across species distributions can help us to evaluate their co-occurrence while jointly considering resources and conditions on niche partitioning. Here, using information drawn from literature, we evaluated the relationship between geographic, climatic (Grinnellian) and trophic (Eltonian) niche dimensions among five highly sympatric felid species in favoring species co-occurrence at broad spatial scales across the Neotropical region. We obtain potential geographic distributions of species through ecological niche models. Then, we calculated the pairwise species overlaps for each niche dimension and tested for a relationship between each pair of dimensions using Mantel and partial Mantel tests. We found a positive and significant relationship between geographic co-occurrence and climatic overlap. This relationship remained after controlling for trophic overlap. Geographic and trophic overlap, as well as climatic and trophic overlap, did not show significant relationships. We conclude that the high degree of geographic co-occurrence among our studied felid species is favored by climate and that their high degree of trophic overlap is not limiting their co-occurrence pattern.
机译：理解本地共存和大规模物种共生模式是生态学和宏观生态学的核心问题。生态位理论通过考虑物种所使用的资源（爱尔顿生态位）和条件（格林纳利生态位）来关联空间尺度，并使我们能够评估这些因素对物种共生的贡献。的确，结合饮食偏好和跨物种分布的气候变量的本地现场数据可以帮助我们评估它们的共现性，同时共同考虑利基划分的资源和条件。在这里，我们使用从文献中获得的信息，评估了五个高度同伴猫科动物物种之间的地理，气候（格林纳利）和营养（生态位）生态位维度之间的关系，以利于新热带地区广泛空间尺度上的物种共生。我们通过生态位模型获得了潜在的物种地理分布。然后，我们计算了每个利基维度的成对物种重叠，并使用Mantel和部分Mantel测试测试了每对维度之间的关系。我们发现地理共现与气候重叠之间存在积极且显着的关系。在控制了营养重叠之后，这种关系仍然存在。地理和营养上的重叠以及气候和营养上的重叠没有显示出显着的关系。我们得出的结论是，我们研究的猫科动物物种之间的高度地理共生受到气候的青睐，并且它们高度的营养重叠并不限制其共生模式。

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  • 来源
    《Ecological research》 |2020年第2期|382-393|共12页
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    Inst Ecol AC Lab Macroecol Evolut Red Biol Evolut Carretera Antigua Coatepec 351 Xalapa 91070 Veracruz Mexico|Inst Ecol AC Programa Doctorado Ciencias Xalapa Veracruz Mexico;

    Inst Ecol AC Lab Macroecol Evolut Red Biol Evolut Carretera Antigua Coatepec 351 Xalapa 91070 Veracruz Mexico;

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  • 正文语种 eng
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  • 关键词

    ecological niche; geographic range; neotropics; felidae; diet;

    机译：生态位;地理范围新热带猫科饮食;

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