ArticleIntegrative and comparative biology2012
Asymmetric dispersal can maintain larval polymorphism: a model motivated by Streblospio benedicti.
Article in Integrative and comparative biology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- Assortative mating and mate-choice contributes to the maintenance of a developmental dimorphism in Streblospio benedicti.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2023Article
- Seasonal genetic variation associated with population dynamics of a poecilogonous polychaete worm.Ecology and evolution · 2017Article
- Evolution of a butterfly dispersal syndrome.Proceedings. Biological sciences · 2016Article
- An empiricist's guide to theoretical predictions on the evolution of dispersal.Interface focus · 2013Review
- Consequences of a poecilogonous life history for genetic structure in coastal populations of the polychaete Streblospio benedicti.Molecular ecology · 2012Article
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Authors and funding
2 authors.
Funding
Abstract
Polymorphism in traits affecting dispersal occurs in a diverse variety of taxa. Typically, the maintenance of a dispersal polymorphism is attributed to environmental heterogeneity where parental bet-hedging can be favored. There are, however, examples of dispersal polymorphisms that occur across similar environments. For example, the estuarine polychaete Streblospio benedicti has a highly heritable offspring dimorphism that affects larval dispersal potential. We use analytical models of dispersal to determine the conditions necessary for a stable dispersal polymorphism to exist. We show that in asexual haploids, sexual haploids, and in sexual diploids in the absence of overdominance, asymmetric dispersal is required in order to maintain a dispersal polymorphism when patches do not vary in intrinsic quality. Our study adds an additional factor, dispersal asymmetry, to the short list of mechanisms that can maintain polymorphism in nature. The region of the parameter space in which polymorphism is possible is limited, suggesting why dispersal polymorphisms within species are rare.
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