气候,而不是土壤,驱动着两个密切相关的虫的分布
Henrique J Oliveira1, Karoline Ceron2, Mario R Moura3
1Programa de Pós-Graduação em Biodiversidade e Conservação da Natureza Universidade Federal de Juiz de Fora Juiz de Fora Brazil.
Ecology and evolution
|August 18, 2025
概括
气候驱动两个姐妹虫物种Amphisbaena bolivica和A. camura的空间隔离,尽管它们有共同的土壤. 这种生态区分有助于解释它们在重叠的息地共存.
科学领域:
- 生态生态学 生态生态学
- 动物学 动物学
- 进化生物学 进化生物学
背景情况:
- 了解物种共存是一个核心的生态挑战.
- 姐妹物种提供了关于由于共同的进化历史而导致的利基重叠和分离的见解.
- 对于化石 (地下) 生物,气候和土壤在分布和相互作用中的作用尚不清楚.
研究的目的:
- 调查影响两个姊妹虫物种Amphisbaena bolivica和A. camura.共存的因素.
- 评估气候,地形 (土壤) 和地形变量对它们分布的相对重要性.
- 评估气候和土壤环境空间中的利基重叠和分离.
主要方法:
- 利用马克森特的利基建模来预测基于发生记录的息地适合性.
- 分析了影响物种分布的气候,地形和地形变量.
- 在不同的环境空间 (气候与土壤) 中,量化的利基重叠.
主要成果:
- 两种物种的息地适合性模型准确地反映了它们在南美洲的已知分布.
- 气候变量对两种物种的分布的影响力大于地形变量和浮标变量.
- 关键的气候驱动因素包括A. bolivica最潮湿季度的同热度和平均温度,以及A. camura的平均日间范围.
- 在气候空间观察到低利基重叠,但在地空间的相似性高于预期.
结论:
- 气候因素是这些姐妹化石物种之间的空间隔离的主要驱动因素.
- 艾达菲克的保守主义表明,对于两种Amphisbaena物种来说,稳定的土壤利基偏好.
- 由气候驱动的生态区分,促进了密切相关物种的共存.
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