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bioRxiv · 10.1101/044073

Genomic data reveal similar genetic differentiation between invertebrates living under and on a riverine floodplain

Steve Jordan·Amanda DelVecchia·Brian K Hand·Laney Hayssen·Clark Nissley·Gordon Luikart·Jack Stanford
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Abstract

Little is known about the life histories, population connectivity, or dispersal mechanisms of shallow groundwater organisms. Here we used RAD-seq to analyze population structure in two aquifer species: Paraperla frontalis, a stonefly with groundwater larvae and aerial adults, and Stygobromus sp., a groundwater-obligate amphipod. We found similar levels of connectivity in each species between floodplains separated by ~70 river km in the Flathead River basin of NW Montana, USA. Given that Stygobromous lacks the aboveground life stage of P. frontalis, our findings suggest that aquifer-obligate species might have previously unrecognized dispersal capacity.

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Steve Jordan, Amanda DelVecchia, Brian K Hand, Laney Hayssen, Clark Nissley, Gordon Luikart, Jack Stanford. 2016-03-17. Genomic data reveal similar genetic differentiation between invertebrates living under and on a riverine floodplain. https://doi.org/10.1101/044073

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