Phenotypes of predator individuals underpin contrasting ecosystem effects

IF 2.8 2区 生物学 Q2 ECOLOGY Freshwater Biology Pub Date : 2024-04-04 DOI:10.1111/fwb.14242
Thibaut Rota, Jérémy Jabiol, Sylvain Lamothe, Didier Lambrigot, Éric Chauvet, Antoine Lecerf
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捕食者个体的表型支撑着截然不同的生态系统效应
种内变异对我们了解生态系统的功能具有重要意义。然而,除了体型的个体发育变异外,我们对个体间的表型差异如何调节生态系统功能知之甚少。我们在一条森林溪流中研究了同种捕食性蜻蜓幼虫对生态系统的影响,这些幼虫在性别、体形、行为和生长速度上都存在差异。在溪流围栏的帮助下,我们能够评估在不受控制的自然条件下,不同的捕食者表型如何对栖息在落叶层中的猎物、真菌生物量和落叶层分解产生连带效应。与对照组(未添加蜻蜓幼虫)相比,一些捕食者增加了落叶固体存量和真菌生物量,但另一些捕食者则产生了相反的效果。这些对比效应在我们的两次实验中均可重复。表型效应与个体的性别和在生活史-行为连续体中的位置有关,可能是通过对猎物不同的自上而下的控制,或通过非消耗性效应的个体间变异来实现的。即使在森林溪流这样复杂和随机的自然环境中,捕食者对生态系统过程影响的个体差异也可能受多种表型因素的影响。我们邀请大家开展进一步的研究,以了解捕食者对生态系统过程影响的个体差异性的驱动机制(如非消耗性效应)。
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来源期刊
Freshwater Biology
Freshwater Biology 生物-海洋与淡水生物学
CiteScore
5.90
自引率
3.70%
发文量
162
审稿时长
2 months
期刊介绍: Freshwater Biology publishes papers on all aspects of the ecology of inland waters, including rivers and lakes, ground waters, flood plains and other freshwater wetlands. We include studies of micro-organisms, algae, macrophytes, invertebrates, fish and other vertebrates, as well as those concerning whole systems and related physical and chemical aspects of the environment, provided that they have clear biological relevance. Studies may focus at any level in the ecological hierarchy from physiological ecology and animal behaviour, through population dynamics and evolutionary genetics, to community interactions, biogeography and ecosystem functioning. They may also be at any scale: from microhabitat to landscape, and continental to global. Preference is given to research, whether meta-analytical, experimental, theoretical or descriptive, highlighting causal (ecological) mechanisms from which clearly stated hypotheses are derived. Manuscripts with an experimental or conceptual flavour are particularly welcome, as are those or which integrate laboratory and field work, and studies from less well researched areas of the world. Priority is given to submissions that are likely to interest a wide range of readers. We encourage submission of papers well grounded in ecological theory that deal with issues related to the conservation and management of inland waters. Papers interpreting fundamental research in a way that makes clear its applied, strategic or socio-economic relevance are also welcome. Review articles (FRESHWATER BIOLOGY REVIEWS) and discussion papers (OPINION) are also invited: these enable authors to publish high-quality material outside the constraints of standard research papers.
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