Aquatic communities in arid landscapes: Local conditions, dispersal traits and landscape configuration determine local biodiversity

A Moran-Ordonez, Alexandra Pavlova, Adrian Pinder, Lien Sim, Paul Sunnucks, Ross THOMPSON, Jenny DAVIS

    Research output: Contribution to journalArticle

    21 Citations (Scopus)

    Abstract

    Aim: To understand how environmental conditions and landscape structure interact at different spatial scales to shape the community composition of arid zone aquatic invertebrates with different dispersal abilities. Location: Australia. Methods: For each of five drainage basins and for their encompassing region (Pilbara), we built matrices of dissimilarities in presence-absence patterns of aquatic invertebrate community composition. This was carried out for all taxa collectively and separately for five dispersal trait groups: obligate aquatics, passive aerial dispersers, animals moving by aerial phoresy, weak and strong fliers. We analysed correlations between community dissimilarities and (1) dissimilarities in local environmental conditions, (2) geographic distances and (3) landscape resistance distances among the sites from which invertebrates were sampled. Calculation of landscape resistances accounted for longitudinal connectivity along the river channels (least-cost-path), lateral connectivity between streams and the potential effects of rugged topography on invertebrate dispersal. Results: Local environmental factors and landscape resistances explained differences in community composition at the regional scale. In basins with complex topography, local environmental conditions were the main factor explaining community dissimilarities in most dispersal groups. Conversely, in basins where flatter topography meant that moderate to high lateral connectivity between streams is possible, the spatial configuration of the dendritic network determined the community composition of most dispersal trait groups. Geographic and least-cost-path distances were poor predictors of community composition. None of the groups showed a consistent correlation with environmental factors alone, or just landscape resistances, across all basins. Main conclusions: Local environmental conditions, hydrological connectivity and landscape resistance to dispersal are all important influences on community composition of arid zone aquatic invertebrates. The impact of each of these factors varies with dispersal trait group and spatial configuration of basins: the importance of lateral connectivity for explaining a substantial proportion of community composition points to a major role of flooding regimes in maintaining biological communities.
    Original languageEnglish
    Pages (from-to)1230-1241
    Number of pages12
    JournalDiversity and Distributions
    Volume21
    Issue number10
    DOIs
    Publication statusPublished - 2015

    Fingerprint

    aquatic communities
    aquatic community
    community composition
    biodiversity
    connectivity
    environmental factors
    aquatic invertebrates
    invertebrate
    basins
    topography
    environmental conditions
    arid zones
    basin
    invertebrates
    phoresy
    environmental factor
    landscape structure
    river channel
    cost
    drainage basin

    Cite this

    Moran-Ordonez, A ; Pavlova, Alexandra ; Pinder, Adrian ; Sim, Lien ; Sunnucks, Paul ; THOMPSON, Ross ; DAVIS, Jenny. / Aquatic communities in arid landscapes: Local conditions, dispersal traits and landscape configuration determine local biodiversity. In: Diversity and Distributions. 2015 ; Vol. 21, No. 10. pp. 1230-1241.
    @article{0907ef9f07bf45b0b8cbebd34e7ed429,
    title = "Aquatic communities in arid landscapes: Local conditions, dispersal traits and landscape configuration determine local biodiversity",
    abstract = "Aim: To understand how environmental conditions and landscape structure interact at different spatial scales to shape the community composition of arid zone aquatic invertebrates with different dispersal abilities. Location: Australia. Methods: For each of five drainage basins and for their encompassing region (Pilbara), we built matrices of dissimilarities in presence-absence patterns of aquatic invertebrate community composition. This was carried out for all taxa collectively and separately for five dispersal trait groups: obligate aquatics, passive aerial dispersers, animals moving by aerial phoresy, weak and strong fliers. We analysed correlations between community dissimilarities and (1) dissimilarities in local environmental conditions, (2) geographic distances and (3) landscape resistance distances among the sites from which invertebrates were sampled. Calculation of landscape resistances accounted for longitudinal connectivity along the river channels (least-cost-path), lateral connectivity between streams and the potential effects of rugged topography on invertebrate dispersal. Results: Local environmental factors and landscape resistances explained differences in community composition at the regional scale. In basins with complex topography, local environmental conditions were the main factor explaining community dissimilarities in most dispersal groups. Conversely, in basins where flatter topography meant that moderate to high lateral connectivity between streams is possible, the spatial configuration of the dendritic network determined the community composition of most dispersal trait groups. Geographic and least-cost-path distances were poor predictors of community composition. None of the groups showed a consistent correlation with environmental factors alone, or just landscape resistances, across all basins. Main conclusions: Local environmental conditions, hydrological connectivity and landscape resistance to dispersal are all important influences on community composition of arid zone aquatic invertebrates. The impact of each of these factors varies with dispersal trait group and spatial configuration of basins: the importance of lateral connectivity for explaining a substantial proportion of community composition points to a major role of flooding regimes in maintaining biological communities.",
    author = "A Moran-Ordonez and Alexandra Pavlova and Adrian Pinder and Lien Sim and Paul Sunnucks and Ross THOMPSON and Jenny DAVIS",
    year = "2015",
    doi = "10.1111/ddi.12342",
    language = "English",
    volume = "21",
    pages = "1230--1241",
    journal = "Diversity and Distributions",
    issn = "1366-9516",
    publisher = "Wiley-Blackwell",
    number = "10",

    }

    Aquatic communities in arid landscapes: Local conditions, dispersal traits and landscape configuration determine local biodiversity. / Moran-Ordonez, A; Pavlova, Alexandra; Pinder, Adrian; Sim, Lien; Sunnucks, Paul; THOMPSON, Ross; DAVIS, Jenny.

    In: Diversity and Distributions, Vol. 21, No. 10, 2015, p. 1230-1241.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Aquatic communities in arid landscapes: Local conditions, dispersal traits and landscape configuration determine local biodiversity

    AU - Moran-Ordonez, A

    AU - Pavlova, Alexandra

    AU - Pinder, Adrian

    AU - Sim, Lien

    AU - Sunnucks, Paul

    AU - THOMPSON, Ross

    AU - DAVIS, Jenny

    PY - 2015

    Y1 - 2015

    N2 - Aim: To understand how environmental conditions and landscape structure interact at different spatial scales to shape the community composition of arid zone aquatic invertebrates with different dispersal abilities. Location: Australia. Methods: For each of five drainage basins and for their encompassing region (Pilbara), we built matrices of dissimilarities in presence-absence patterns of aquatic invertebrate community composition. This was carried out for all taxa collectively and separately for five dispersal trait groups: obligate aquatics, passive aerial dispersers, animals moving by aerial phoresy, weak and strong fliers. We analysed correlations between community dissimilarities and (1) dissimilarities in local environmental conditions, (2) geographic distances and (3) landscape resistance distances among the sites from which invertebrates were sampled. Calculation of landscape resistances accounted for longitudinal connectivity along the river channels (least-cost-path), lateral connectivity between streams and the potential effects of rugged topography on invertebrate dispersal. Results: Local environmental factors and landscape resistances explained differences in community composition at the regional scale. In basins with complex topography, local environmental conditions were the main factor explaining community dissimilarities in most dispersal groups. Conversely, in basins where flatter topography meant that moderate to high lateral connectivity between streams is possible, the spatial configuration of the dendritic network determined the community composition of most dispersal trait groups. Geographic and least-cost-path distances were poor predictors of community composition. None of the groups showed a consistent correlation with environmental factors alone, or just landscape resistances, across all basins. Main conclusions: Local environmental conditions, hydrological connectivity and landscape resistance to dispersal are all important influences on community composition of arid zone aquatic invertebrates. The impact of each of these factors varies with dispersal trait group and spatial configuration of basins: the importance of lateral connectivity for explaining a substantial proportion of community composition points to a major role of flooding regimes in maintaining biological communities.

    AB - Aim: To understand how environmental conditions and landscape structure interact at different spatial scales to shape the community composition of arid zone aquatic invertebrates with different dispersal abilities. Location: Australia. Methods: For each of five drainage basins and for their encompassing region (Pilbara), we built matrices of dissimilarities in presence-absence patterns of aquatic invertebrate community composition. This was carried out for all taxa collectively and separately for five dispersal trait groups: obligate aquatics, passive aerial dispersers, animals moving by aerial phoresy, weak and strong fliers. We analysed correlations between community dissimilarities and (1) dissimilarities in local environmental conditions, (2) geographic distances and (3) landscape resistance distances among the sites from which invertebrates were sampled. Calculation of landscape resistances accounted for longitudinal connectivity along the river channels (least-cost-path), lateral connectivity between streams and the potential effects of rugged topography on invertebrate dispersal. Results: Local environmental factors and landscape resistances explained differences in community composition at the regional scale. In basins with complex topography, local environmental conditions were the main factor explaining community dissimilarities in most dispersal groups. Conversely, in basins where flatter topography meant that moderate to high lateral connectivity between streams is possible, the spatial configuration of the dendritic network determined the community composition of most dispersal trait groups. Geographic and least-cost-path distances were poor predictors of community composition. None of the groups showed a consistent correlation with environmental factors alone, or just landscape resistances, across all basins. Main conclusions: Local environmental conditions, hydrological connectivity and landscape resistance to dispersal are all important influences on community composition of arid zone aquatic invertebrates. The impact of each of these factors varies with dispersal trait group and spatial configuration of basins: the importance of lateral connectivity for explaining a substantial proportion of community composition points to a major role of flooding regimes in maintaining biological communities.

    U2 - 10.1111/ddi.12342

    DO - 10.1111/ddi.12342

    M3 - Article

    VL - 21

    SP - 1230

    EP - 1241

    JO - Diversity and Distributions

    JF - Diversity and Distributions

    SN - 1366-9516

    IS - 10

    ER -