Patterns and drivers of aquatic invertebrate diversity across an arid biome

Jenny Davis, Lien Sim, Ross M. Thompson, Adrian Pinder, Jayne Brim Box, Nicholas P. Murphy, Fran Sheldon, Alejandra Morán-Ordóñez, Paul Sunnucks

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    Managing and restoring faunal diversity across large areas requires an understanding of the roles of connectivity and dispersal in driving community patterns. We sought to determine the influence of connectivity, water regime, water source, geographical location, and dispersal traits on patterns of aquatic invertebrate diversity across a continent-wide arid biome. We compiled data on freshwater invertebrate assemblages from sites spanning the breadth of arid Australia. Univariate analyses (analysis of variance and rarefaction) revealed that alpha and gamma diversity across sites decreased as latitude increased. Multivariate analyses (ordination and analysis of similarity) revealed that community composition had considerable fidelity to geographic regions. Hydrological connectivity was strongly associated with riverine community composition although water rarely flowed (often less than annually). Hydrologically isolated sites (springs and rockholes) supported communities that were markedly dissimilar to hydrologically connected sites, and to each other. We investigated the influence of dispersal on diversity patterns by examining distance decay relationships for each of four dispersal trait groups (obligate aquatic and passive, weak, and strong aerial dispersers) on the basis of geodesic (shortest path) distances between pairs of sites and Mantel tests. We did not detect clear differences between dispersal traits and distance decay relationships at the continental scale, even for the two groups with the lowest dispersal ability (obligate aquatics and passive dispersers). Our results suggest that the loss of hydrological connectivity from water developments in arid lands (for example, the impoundment of intermittent rivers) is likely to affect macroinvertebrates. However, the exact flow mechanisms underlying such changes remain to be determined.

    Original languageEnglish
    Pages (from-to)375-387
    Number of pages12
    JournalEcography
    Volume41
    Issue number2
    Early online date15 Mar 2017
    DOIs
    Publication statusPublished - Feb 2018

    Fingerprint

    aquatic invertebrates
    biome
    invertebrate
    connectivity
    ecosystems
    deterioration
    water
    Geographical Locations
    hydrochemistry
    arid lands
    macroinvertebrates
    community composition
    analysis of variance
    invertebrates
    rivers
    impoundment
    ordination
    variance analysis
    macroinvertebrate
    testing

    Cite this

    Davis, J., Sim, L., Thompson, R. M., Pinder, A., Box, J. B., Murphy, N. P., ... Sunnucks, P. (2018). Patterns and drivers of aquatic invertebrate diversity across an arid biome. Ecography, 41(2), 375-387. https://doi.org/10.1111/ecog.02334
    Davis, Jenny ; Sim, Lien ; Thompson, Ross M. ; Pinder, Adrian ; Box, Jayne Brim ; Murphy, Nicholas P. ; Sheldon, Fran ; Morán-Ordóñez, Alejandra ; Sunnucks, Paul. / Patterns and drivers of aquatic invertebrate diversity across an arid biome. In: Ecography. 2018 ; Vol. 41, No. 2. pp. 375-387.
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    Davis, J, Sim, L, Thompson, RM, Pinder, A, Box, JB, Murphy, NP, Sheldon, F, Morán-Ordóñez, A & Sunnucks, P 2018, 'Patterns and drivers of aquatic invertebrate diversity across an arid biome', Ecography, vol. 41, no. 2, pp. 375-387. https://doi.org/10.1111/ecog.02334

    Patterns and drivers of aquatic invertebrate diversity across an arid biome. / Davis, Jenny; Sim, Lien; Thompson, Ross M.; Pinder, Adrian; Box, Jayne Brim; Murphy, Nicholas P.; Sheldon, Fran; Morán-Ordóñez, Alejandra; Sunnucks, Paul.

    In: Ecography, Vol. 41, No. 2, 02.2018, p. 375-387.

    Research output: Contribution to journalArticle

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