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环境和特征会影响寄生虫和宿主物种的位置,但不会影响跳-哺乳动物网络中的角色
Boris R Krasnov1, Georgy I Shenbrot1, Irina S Khokhlova2
1Mitrani Department of Desert Ecology, Swiss Institute for Dryland Environmental and Energy Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, Israel.
Integrative zoology
|January 24, 2024
概括
跳和宿主物种在生态网络中的位置显示出一些一致性,但受当地环境和网络大小的影响. 种类特征会影响这些因素如何影响它们在网络中的角色.
科学领域:
- 生态生态学 生态生态学
- 网络分析 网络分析
- 寄生虫学的寄生虫学
背景情况:
- 了解物种在生态网络中的作用对于预测生态系统稳定性至关重要.
- 跳与哺乳动物的相互作用形成了由地理和环境因素影响的复杂网络.
- 之前的研究还没有充分探索这些网络中的物种位置和角色的空间变化.
研究的目的:
- 研究四个生物地理领域的跳-哺乳动物相互作用网络中的物种位置和角色的空间变化.
- 为了确定物种的位置 (物种强度,相互作用专业化程度,自身向量中心性) 和角色是否在物种内可重复.
- 评估环境变量和网络大小对物种地位和角色的影响,以及这些影响是否取决于物种特征.
主要方法:
- 在多个跳-哺乳动物网络中对物种位置和角色的空间变化的分析.
- 使用物种强度 (SS),相互作用专业化程度 (d') 和自身矢量中心性 (C) 来量化物种位置.
- 统计分析以评估物种内索引的重复性以及环境变量和网络大小的影响.
主要成果:
- 物种位置 (SS,d',C) 显示出物种内部的重复性显著,尽管不高,这表明当地因素的影响.
- 大多数跳和宿主物种在相互作用网络中占据了边缘角色.
- 环境变量或网络大小在大多数多网络物种中至少影响了一种物种的位置指数.
结论:
- 跳-哺乳动物网络中的物种位置表现出一些保护,但对当地环境条件和网络大小敏感.
- 环境和网络大小对物种地位的影响,但不是角色,与特定物种特征有关.
- 这些发现强调了物种相互作用的动态性质以及它们在生态网络中的位置.
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