更大并不一定更好:经验测试表明,分散代理错误地表示了实际的分散能力
Jill Lancaster1, Barbara J Downes1, Zachary J Kayll1
1School of Geography, Earth and Atmospheric Sciences, The University of Melbourne , , Victoria, 3010, Australia.
Proceedings. Biological sciences
|May 21, 2024
概括
像翅膀大小和专家意见这样的分散代理很难预测实际的昆虫分散. 新的研究表明,这些代理对生态模型来说不可靠,质疑过去的发现.
科学领域:
- 生态生态学 生态生态学
- 生物地理学 生物地理学 生物地理学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 生态和生物地理模型经常使用分散代理,因为缺乏经验分散数据.
- 通常使用的代理包括翅膀大小/形状指标和专家意见,特别是在淡水昆虫等无脊椎动物.
- 这些代理代表实际物种分散的可靠性在很大程度上未经测试.
研究的目的:
- 实证测试真实分散能力与常用的散布代理在虫中的关联.
- 评估翅膀形态和专家意见作为昆虫分散的可靠指标的有效性.
- 评估依赖于生态和生物地理研究中的分散代理的研究的有效性.
主要方法:
- 收集了罕见的,独特的经验数据,关于59种虫在12个家族中的实际散播能力.
- 测量和分析翅膀大小和形状指标作为分散代理.
- 经验分散数据与专家指定的分散能力进行了比较.
主要成果:
- 翅膀形态学显示,与所有物种的实际分散能力没有显著的关联.
- 虽然一些翅膀指标为特定家族内的分散提供了较低的预测能力,但这些差异很大.
- 关于分散能力的专家意见表现不好于随机机会,在某些情况下,表现明显差.
结论:
- 这些发现严重怀疑生态和生物地理研究中常用的分散代理值的可靠性.
- 以前依赖这些代理的研究可能需要重新评估.
- 未来的研究应该优先考虑通过创新的现场调查和实验设计直接测量实际分散.
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