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  • Grassland management intensification weakens the associations among the diversities of multiple plant and animal taxa

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    Author(s)
    Manning, Pete
    Gossner, Martin M.
    Bossdorf, Oliver
    Allan, Eric
    Zhang, Yuan-Ye
    Prati, Daniel
    Bluthgen, Nico
    Boch, Steffen
    Bohm, Stefan
    Borschig, Carmen
    Holzel, Norbert
    Jung, Kirsten
    Klaus, Valentin H.
    Klein, Alexandra Maria
    Kleinebecker, Till
    Krauss, Jochen
    Lange, Markus
    Muller, Jorg
    Pasalic, Esther
    Socher, Stephanie A.
    Tschapka, Marco
    Turke, Manfred
    Weiner, Christiane
    Werner, Michael
    Gockel, Sonja
    Hemp, Andreas
    Renner, Swen C.
    Wells, Konstans
    Buscot, Francois
    et al.
    Griffith University Author(s)
    Wells, Konstans
    Year published
    2015
    Metadata
    Show full item record
    Abstract
    Land-use intensification is a key driver of biodiversity change. However, little is known about how it alters relationships between the diversities of different taxonomic groups, which are often correlated due to shared environmental drivers and trophic interactions. Using data from 150 grassland sites, we examined how land-use intensification (increased fertilization, higher livestock densities, and increased mowing frequency) altered correlations between the species richness of 15 plant, invertebrate, and vertebrate taxa. We found that 54% of pairwise correlations between taxonomic groups were significant and positive among ...
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    Land-use intensification is a key driver of biodiversity change. However, little is known about how it alters relationships between the diversities of different taxonomic groups, which are often correlated due to shared environmental drivers and trophic interactions. Using data from 150 grassland sites, we examined how land-use intensification (increased fertilization, higher livestock densities, and increased mowing frequency) altered correlations between the species richness of 15 plant, invertebrate, and vertebrate taxa. We found that 54% of pairwise correlations between taxonomic groups were significant and positive among all grasslands, while only one was negative. Higher land-use intensity substantially weakened these correlations (35% decrease in r and 43% fewer significant pairwise correlations at high intensity), a pattern which may emerge as a result of biodiversity declines and the breakdown of specialized relationships in these conditions. Nevertheless, some groups (Coleoptera, Heteroptera, Hymenoptera and Orthoptera) were consistently correlated with multidiversity, an aggregate measure of total biodiversity comprised of the standardized diversities of multiple taxa, at both high and low land-use intensity. The form of intensification was also important; increased fertilization and mowing frequency typically weakened plant-plant and plant-primary consumer correlations, whereas grazing intensification did not. This may reflect decreased habitat heterogeneity under mowing and fertilization and increased habitat heterogeneity under grazing. While these results urge caution in using certain taxonomic groups to monitor impacts of agricultural management on biodiversity, they also suggest that the diversities of some groups are reasonably robust indicators of total biodiversity across a range of conditions.
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    Journal Title
    Ecology
    Volume
    96
    Issue
    6
    DOI
    https://doi.org/10.1890/14-1307.1
    Copyright Statement
    © 2015 Ecological Society of America. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Ecosystem Function
    Ecological Applications
    Ecology
    Evolutionary Biology
    Publication URI
    http://hdl.handle.net/10072/171745
    Collection
    • Journal articles

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