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  • Mitochondrial DNA reveals phylogenetic structuring and cryptic diversity in Australian freshwater macroinvertebrate assemblages.

    Author(s)
    Baker, AM
    Hughes, JM
    Dean, JC
    Bunn, SE
    Griffith University Author(s)
    Hughes, Jane M.
    Bunn, Stuart E.
    Baker, Andrew M.
    Year published
    2004
    Metadata
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    Abstract
    Freshwater catchments of south-east Australia possess generally rich and diverse macroinvertebrate faunas, although the genetic structuring of these assemblages is poorly known. In this study, we assessed mitochondrial phylogenetic structure within four genera of macroinvertebrates from the Sydney Water Supply Catchment, south-east Australia: Euastacus (parastacid crayfish), Cheumatopsyche (hydropsychid caddisflies), Atalophlebia (leptophlebiid mayflies) and Paratya (atyid shrimp), with a view to prioritising areas of high diversity for future conservation efforts. We found extremely divergent (购19%) cytochrome c oxidase ...
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    Freshwater catchments of south-east Australia possess generally rich and diverse macroinvertebrate faunas, although the genetic structuring of these assemblages is poorly known. In this study, we assessed mitochondrial phylogenetic structure within four genera of macroinvertebrates from the Sydney Water Supply Catchment, south-east Australia: Euastacus (parastacid crayfish), Cheumatopsyche (hydropsychid caddisflies), Atalophlebia (leptophlebiid mayflies) and Paratya (atyid shrimp), with a view to prioritising areas of high diversity for future conservation efforts. We found extremely divergent (购19%) cytochrome c oxidase subunit I (COI) lineages within all surveyed groups, many of which corresponded to recognised taxa, although there was also evidence of cryptic species within three genera; Euastacus, Atalophlebia and Paratya. Distributions of these three genera were associated with high altitude streams, above dam impoundments. Our results have important implications for management of the Sydney Water Supply Catchment. Future disturbance in this region is likely to be high and priority should be directed towards preserving the diversity of fauna in these upland areas. This comparative phylogenetic approach may have value as a means to focus and direct conservation efforts in other areas supporting high biodiversity.
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    Journal Title
    Marine and Freshwater Research
    Volume
    55
    Issue
    6
    Publisher URI
    http://www.publish.csiro.au/nid/126.htm
    DOI
    https://doi.org/10.1071/MF04050
    Publication URI
    http://hdl.handle.net/10072/5249
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