Phenotypic links among life-history stages are complex and context-dependent in a marine invertebrate: Interactions among offspring size, larval nutrition and postmetamorphic density

Allen, Richard M. and Marshall, Dustin J. (2013) Phenotypic links among life-history stages are complex and context-dependent in a marine invertebrate: Interactions among offspring size, larval nutrition and postmetamorphic density. Functional Ecology, 27 6: 1358-1366. doi:10.1111/1365-2435.12117


Author Allen, Richard M.
Marshall, Dustin J.
Title Phenotypic links among life-history stages are complex and context-dependent in a marine invertebrate: Interactions among offspring size, larval nutrition and postmetamorphic density
Journal name Functional Ecology   Check publisher's open access policy
ISSN 0269-8463
1365-2435
Publication date 2013-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1111/1365-2435.12117
Volume 27
Issue 6
Start page 1358
End page 1366
Total pages 9
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing Ltd.
Language eng
Subject 1105 Dentistry
Abstract Examples of simple phenotypic relationships, where variation in one stage directly affects phenotypic variation in a subsequent stage, are documented in most taxa. However, environmental variation can mediate these relationships, and because most organisms develop through multiple life-history stages, each stage-dependent environment has the potential to create new phenotypic relationships and interfere with existing relationships. Despite the likelihood of complex phenotypic interactions among life-history stages, and the potential for these interactions to resonate throughout the life history, there are few tests of the problem and few predictions of how these phenotypic interactions are resolved. Here, we examined the interdependent effects of three sources of phenotypic variation on the performance of a marine tube worm. Sources of phenotypic variation included: offspring size, larval nutrition and juvenile density. We found highly context-dependent relationships between these factors and postmetamorphic performance. Within the overarching result of context dependence, we found: interactions could negate and reverse relationships; early-stage phenotypes could persist to postmetamorphosis; later, life-history environments could contribute more to recruit phenotypes than early-stages; and late-stage variation can depend on early-stage phenotypes. Our results demonstrate that while simple phenotypic links among the egg, larval and postrecruitment stages may be common and important contributors to growth and survival, these relationships should be considered in the context of the organism's life experience. Each phenotypic link among stages can potentially be complex and depend on prior experience, current state and the subsequent environments experienced.
Keyword Carry over effects
Complex life cycles
Egg size
Hydroides diramphus
Life history
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Biological Sciences Publications
 
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