globalchange  > 气候变化与战略
DOI: 10.1111/ele.13431
论文题名:
Rapid decreases in relative testes mass among monogamous birds but not in other vertebrates
作者: Baker J.; Humphries S.; Ferguson-Gow H.; Meade A.; Venditti C.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期:2
起始页码: 283
结束页码: 292
语种: 英语
中文关键词: Adaptation ; evolutionary rates ; relative testes mass ; social mating system ; sperm competition ; vertebrates
英文关键词: adaptation ; bird ; evolutionary biology ; mating success ; monogamy ; reproductive success ; sperm competition ; Aves ; Vertebrata ; animal ; bird ; evolution ; male ; phylogeny ; reproduction ; sexual behavior ; spermatozoon ; testis ; Animals ; Biological Evolution ; Birds ; Male ; Phylogeny ; Reproduction ; Sexual Behavior, Animal ; Spermatozoa ; Testis
英文摘要: Larger testes produce more sperm and therefore improve reproductive success in the face of sperm competition. Adaptation to social mating systems with relatively high and low sperm competition are therefore likely to have driven changes in relative testes size in opposing directions. Here, we combine the largest vertebrate testes mass dataset ever collected with phylogenetic approaches for measuring rates of morphological evolution to provide the first quantitative evidence for how relative testes mass has changed over time. We detect explosive radiations of testes mass diversity distributed throughout the vertebrate tree of life: bursts of rapid change have been frequent during vertebrate evolutionary history. In socially monogamous birds, there have been repeated rapid reductions in relative testes mass. We see no such pattern in other monogamous vertebrates; the prevalence of monogamy in birds may have increased opportunities for investment in alternative behaviours and physiologies allowing reduced investment in expensive testes. © 2019 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166583
Appears in Collections:气候变化与战略

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作者单位: School of Biological Sciences, University of Reading, Reading, RG6 6BX, United Kingdom; School of Life Sciences, University of Lincoln, Joseph Banks Laboratories, Green Lane, Lincoln, LN6 7DL, United Kingdom; Department of Genetics, Evolution and Environment, Centre for Biodiversity and Environment Research, University College London, Gower Street, London, WC1E 6BT, United Kingdom

Recommended Citation:
Baker J.,Humphries S.,Ferguson-Gow H.,et al. Rapid decreases in relative testes mass among monogamous birds but not in other vertebrates[J]. Ecology Letters,2020-01-01,23(2)
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