ArticleProceedings of the National Academy of Sciences of the United States of America2011
Asymmetric dispersal allows an upstream region to control population structure throughout a species' range.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed.
- The fence interface effect: how altered herbivore movement creates a soil bacterial diversity hotspot.Movement ecology · 2026Article
- Population genetic structure reveals asymmetric hybridization between Pinus pumila and P. parviflora var. Pentaphylla in the Hakkoda Mountains, Northern Japan.Scientific reports · 2025Article
- Multiple source locations and long-distance dispersal explain the rapid spread of a recent amphibian invasion.Heredity · 2025Article
- The El Niño Southern Oscillation drives multidirectional inter-reef larval connectivity in the Great Barrier Reef.Scientific reports · 2022Article
- Seascape genomics identify adaptive barriers correlated to tidal amplitude in the shore crab Carcinus maenas.Molecular ecology · 2022Article
- Global wind patterns shape genetic differentiation, asymmetric gene flow, and genetic diversity in trees.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Telemetry and genetics reveal asymmetric dispersal of a lake-feeding salmonid between inflow and outflow spawning streams at a microgeographic scale.Ecology and evolution · 2020Article
- Temporal dynamics of genetic clines of invasive European green crab (Evolutionary applications · 2018Article
- Genomewide evidence of environmentally mediated secondary contact of European green crab (Evolutionary applications · 2018Article
- A climate-associated multispecies cryptic cline in the northwest Atlantic.Science advances · 2018Article
- Article
- Genetic substructure and admixture as important factors in linkage disequilibrium-based estimation of effective number of breeders in recovering wildlife populations.Ecology and evolution · 2017Article
- Genomic evidence of hybridization between two independent invasions of European green crab (Carcinus maenas) in the Northwest Atlantic.Heredity · 2017Article
- Ocean currents modify the coupling between climate change and biogeographical shifts.Scientific reports · 2017Article
- RAD sequencing reveals genomewide divergence between independent invasions of the European green crab (Ecology and evolution · 2017Article
- Finite-size effects on bacterial population expansion under controlled flow conditions.Scientific reports · 2017Article
- Stochastic dispersal increases the rate of upstream spread: A case study with green crabs on the northwest Atlantic coast.PloS one · 2017Article
- The oceanic concordance of phylogeography and biogeography: a case study in Notochthamalus.Ecology and evolution · 2016Article
- Directional genetic differentiation and relative migration.Ecology and evolution · 2016Article
- Article
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4 authors.
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Abstract
In a single well-mixed population, equally abundant neutral alleles are equally likely to persist. However, in spatially complex populations structured by an asymmetric dispersal mechanism, such as a coastal population where larvae are predominantly moved downstream by currents, the eventual frequency of neutral haplotypes will depend on their initial spatial location. In our study of the progression of two spatially separate, genetically distinct introductions of the European green crab (Carcinus maenas) along the coast of eastern North America, we captured this process in action. We documented the shift of the genetic cline in this species over 8 y, and here we detail how the upstream haplotypes are beginning to dominate the system. This quantification of an evolving genetic boundary in a coastal system demonstrates that novel genetic alleles or haplotypes that arise or are introduced into upstream retention zones (regions whose export of larvae is not balanced by import from elsewhere) will increase in frequency in the entire system. This phenomenon should be widespread when there is asymmetrical dispersal, in the oceans or on land, suggesting that the upstream edge of a species' range can influence genetic diversity throughout its distribution. Efforts to protect the upstream edge of an asymmetrically dispersing species' range are vital to conserving genetic diversity in the species.
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