Abstract
Little is known about the life histories, genetic structure and population connectivity of shallow groundwater organisms. We used next-generation sequencing (RAD-seq) to analyse population genomic structure in two aquifer species: Paraperla frontalis (Banks, 1902), a stonefly with groundwater larvae and aerial (winged) adults; and Stygobromus sp., a groundwater-obligate amphipod. We found similar genetic differentiation in each species between floodplains separated by ∼70 river km in the Flathead River basin of north-west Montana, USA. Given that Stygobromus lacks the above-ground life stage of P. frontalis, our findings suggest that connectivity and the magnitude of genetic structure cannot be definitively assumed from life history differences.
Original language | English |
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Pages (from-to) | 315-322 |
Number of pages | 8 |
Journal | Biological Journal of the Linnean Society |
Volume | 129 |
Issue number | 2 |
DOIs | |
State | Published - Jan 30 2020 |
Keywords
- Amphipoda
- Plecoptera
- RAD-seq
- aquifer ecosystem
- groundwater fauna