Strong habitat and weak genetic effects shape the lifetime reproductive success in a wild clownfish population

Salles, Océane C., Almany, Glenn R., Berumen, Michael L., Jones, Geoffrey P., Saenz-Agudelo, Pablo, Srinivasan, Maya, Thorrold, Simon R., Pujol, Benoit, and Planes, Serge (2020) Strong habitat and weak genetic effects shape the lifetime reproductive success in a wild clownfish population. Ecology Letters, 23 (2). pp. 265-273.

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The relative contributions of environmental, maternal and additive genetic factors to the Lifetime reproductive success (LRS) determine whether species can adapt to rapid environmental change. Yet to date, studies quantifying LRS across multiple generations in marine species in the wild are non-existent. Here we used 10-year pedigrees resolved for a wild orange clownfish population from Kimbe Island (PNG) and a quantitative genetic linear mixed model approach to quantify the additive genetic, maternal and environmental contributions to variation in LRS for the self-recruiting portion of the population. We found that the habitat of the breeder, including the anemone species and geographic location, made the greatest contribution to LRS. There were low to negligible contributions of genetic and maternal factors equating with low heritability and evolvability. Our findings imply that our population will be susceptible to short-term, small-scale changes in habitat structure and may have limited capacity to adapt to these changes.

Item ID: 61249
Item Type: Article (Research - C1)
ISSN: 1461-0248
Keywords: adaptation, additive genetic variation, environmental effects, evolvability, heritability, maternal effects, multi-generational pedigree, selection
Copyright Information: © 2019 John Wiley & Sons Ltd/CNRS
Funders: Laboratoire d’Excellence CORAIL, Expenditure Review Committee, Coral Reef Initiatives for the Pacific, Global Environment Facility Coral Reef Targeted Research Connectivity Working Group, National Science Foundation, ARC Centre of Excellence for Coral Reef Studies, The Nature Conservancy, Total Foundation, James Cook University, King Abdullah University of Science and Technology, Woods Hole Oceanographic Institution
Date Deposited: 18 Dec 2019 08:04
FoR Codes: 31 BIOLOGICAL SCIENCES > 3103 Ecology > 310305 Marine and estuarine ecology (incl. marine ichthyology) @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 100%
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