Swimming through sand: connectivity of aquatic fauna in deserts

Ecology and Evolution
Ashley L MurphyPaul Sunnucks

Abstract

Freshwater ecosystems in arid regions range from highly fragmented to highly connected, and connectivity has been assumed to be a major factor in the persistence of aquatic biota in arid environments. This review sought to synthesize existing research on genetic estimation of population connectivity in desert freshwaters, identify knowledge gaps, and set priorities for future studies of connectivity in these environments. From an extensive literature search, we synthesized the approaches applied, systems studied, and conclusions about connectivity reached in population genetic research concerning desert freshwater connectivity globally. We restrict our scope to obligate aquatic fauna that disperse largely via freshwaters and exclude those with active aerial dispersal abilities. We examined 92 papers, comprising 133 studies, published from 1987 to 2014. Most described studies of fishes and invertebrates in the deserts of Australia and North America. Connectivity declined with increasing scale, but did not differ significantly among arid regions or taxonomic classes. There were significant differences in connectivity patterns between species with different dispersal abilities, and between spring and riverine habitats at local sca...Continue Reading

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Citations

Jan 25, 2017·Ecological Applications : a Publication of the Ecological Society of America·Robbi Bishop-TaylorMark Broich
Nov 16, 2021·Evolution; International Journal of Organic Evolution·Catherine R M AttardLuciano B Beheregaray

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