GSTDTAP  > 资源环境科学
DOI10.1111/ele.13768
Evidence for general size-by-habitat rules in actinopterygian fishes across nine scales of observation
John T. Clarke
2021-06-10
发表期刊Ecology Letters
出版年2021
英文摘要

Identifying environmental predictors of phenotype is fundamentally important to many ecological questions, from revealing broadscale ecological processes to predicting extinction risk. However, establishing robust environment—phenotype relationships is challenging, as powerful case studies require diverse clades which repeatedly undergo environmental transitions at multiple taxonomic scales. Actinopterygian fishes, with 32,000+ species, fulfil these criteria for the fundamental habitat divisions in water. With four datasets of body size (ranging 10,905–27,226 species), I reveal highly consistent size-by-habitat-use patterns across nine scales of observation. Taxa in marine, marine-brackish, euryhaline and freshwater-brackish habitats possess larger mean sizes than freshwater relatives, and the largest mean sizes consistently emerge within marine-brackish and euryhaline taxa. These findings align with the predictions of seven mechanisms thought to drive larger size by promoting additional trophic levels. However, mismatches between size and trophic-level patterns highlight a role for additional mechanisms, and support for viable candidates is examined in 3439 comparisons.

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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/329774
专题资源环境科学
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John T. Clarke. Evidence for general size-by-habitat rules in actinopterygian fishes across nine scales of observation[J]. Ecology Letters,2021.
APA John T. Clarke.(2021).Evidence for general size-by-habitat rules in actinopterygian fishes across nine scales of observation.Ecology Letters.
MLA John T. Clarke."Evidence for general size-by-habitat rules in actinopterygian fishes across nine scales of observation".Ecology Letters (2021).
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