Genetic diversity in the Gammarus pecos species complex: Implications for conservation and regional biogeography in the Chihuahuan Desert

  title={Genetic diversity in the Gammarus pecos species complex: Implications for conservation and regional biogeography in the Chihuahuan Desert},
  author={Vivianaluxa Gervasio1 and David J. Berg2 and Brian K. Lang and Nathan L. Allan and Sheldon I. Guttman},
  journal={Limnology and Oceanography},
We used allozyme electrophoresis to quantify genetic variation in nine populations of the Gammarus pecos species complex endemic to spring systems of the northern Chihuahuan Desert. There was significant within‐population and high among‐population genetic variation. Two populations exhibited heterozygote deficiencies and high proportions of polymorphic loci, which suggests the presence of cryptic species. Genetic distances among populations were negatively correlated with previously published… 

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Critically low levels of genetic diversity in fragmented populations of the endangered Glenelg spiny freshwater crayfish Euastacus bispinosus

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The genetic population structure of the pond-dwelling fairy shrimp Branchinecta coloradensis in the Rocky Mountains of Colorado, U.S.A., is investigated using allozymes to assess the relative impacts of history and contemporary gene flow on population structure.

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Conservation genetics of freshwater fish

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Phylogenetic relationships within the aquatic snail genus Tryonia: implications for biogeography of the North American Southwest.

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