DOI: 10.1111/ele.12607
Scopus记录号: 2-s2.0-84965049931
论文题名: Costs of reproduction can explain the correlated evolution of semelparity and egg size: Theory and a test with salmon
作者: Kindsvater H.K. ; Braun D.C. ; Otto S.P. ; Reynolds J.D.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2016
卷: 19, 期: 6 起始页码: 687
结束页码: 696
语种: 英语
英文关键词: Costs of reproduction
; Demography
; Iteroparity
; Life history theory
; Offspring size
; Salmon
; Semelparity
Scopus关键词: Pisces
; Salmonidae
; animal
; biological model
; body size
; clutch size
; evolution
; female
; ovum
; physiology
; reproduction
; salmonine
; Animals
; Biological Evolution
; Body Size
; Clutch Size
; Female
; Models, Biological
; Ovum
; Reproduction
; Salmon
英文摘要: Species' life history traits, including maturation age, number of reproductive bouts, offspring size and number, reflect adaptations to diverse biotic and abiotic selection pressures. A striking example of divergent life histories is the evolution of either iteroparity (breeding multiple times) or semelparity (breed once and die). We analysed published data on salmonid fishes and found that semelparous species produce larger eggs, that egg size and number increase with salmonid body size among populations and species and that migratory behaviour and parity interact. We developed three hypotheses that might explain the patterns in our data and evaluated them in a stage-structured modelling framework accounting for different growth and survival scenarios. Our models predict the observation of small eggs in iteroparous species when egg size is costly to maternal survival or egg number is constrained. By exploring trait co-variation in salmonids, we generate new hypotheses for the evolution of trade-offs among life history traits. © 2016 John Wiley & Sons Ltd/CNRS. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107762
Appears in Collections: 气候减缓与适应
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作者单位: Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada; School of Resource and Environmental Management, Simon Fraser University, Burnaby, BC, Canada; InStream Fisheries Research Inc., Vancouver, BC, Canada; Biodiversity Research Centre, University of British Columbia, Vancouver, BC, Canada
Recommended Citation:
Kindsvater H.K.,Braun D.C.,Otto S.P.,et al. Costs of reproduction can explain the correlated evolution of semelparity and egg size: Theory and a test with salmon[J]. Ecology Letters,2016-01-01,19(6)