DOI: 10.1111/ele.13781
论文题名: A simple null model predicts the island rule
作者: Biddick M. ; Burns K.C.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期: 8 起始页码: 1646
结束页码: 1654
语种: 英语
中文关键词: body size
; convergent evolution
; dwarfism
; evolutionary drift
; gigantism
; size diversity
; trait evolution
英文关键词: evolution
; genetic selection
; island (geological)
; phenotype
; plant
; Biological Evolution
; Islands
; Phenotype
; Plants
; Selection, Genetic
英文摘要: The island rule is a putative pattern in island evolution, where small species become larger on islands and large species become smaller. Despite decades of study, a mechanistic explanation for why some taxonomic groups obey the island rule, while others do not, has yet to be identified. Here, we explore whether the island rule might result from evolutionary drift. We derived a simulation model that predicts evolutionary size changes on islands based on random evolutionary trajectories along bounded trait domains. The model consistently predicted the island rule and could account for its occurrence in plants inhabiting islands in the Southwest Pacific. When support for the island rule was not detected, insular gigantism was often observed, suggesting that natural selection was at work. Overall results indicate that evolutionary drift can provide a parsimonious explanation for the island rule, suggesting future work should focus on circumstances where it does not occur. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166776
Appears in Collections: 气候变化与战略
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作者单位: Terestrial Ecology Research Group, Technical University of Munich, Freising, Germany; Te Kura Mātauranga Koiora, School of Biological Sciences, Te Herenga Waka, Victoria University of Wellington, Wellington, New Zealand
Recommended Citation:
Biddick M.,Burns K.C.. A simple null model predicts the island rule[J]. Ecology Letters,2021-01-01,24(8)