Journal
ECOLOGY LETTERS
Volume 14, Issue 10, Pages 1043-1051Publisher
WILEY
DOI: 10.1111/j.1461-0248.2011.01675.x
Keywords
Alpha; beta; community; dissimilarity; diversity; gamma; metacommunity; macroecology; richness; snail
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For many taxonomic groups, sparse information on the spatial distribution of biodiversity limits our capacity to answer a variety of theoretical and applied ecological questions. Modelling community-level attributes (alpha- and beta-diversity) over space can help overcome this shortfall in our knowledge, yet individually, predictions of alpha- or beta-diversity have their limitations. In this study, we present a novel approach to combining models of alpha- and beta-diversity, with sparse survey data, to predict the community composition for all sites in a region. We applied our new approach to predict land snail community composition across New Zealand. As we demonstrate, these predictions of metacommunity composition have diverse potential applications, including predicting gamma-diversity for any set of sites, identifying target areas for conservation reserves, locating priority areas for future ecological surveys, generating realistic compositional data for metacommunity models and simultaneously predicting the distribution of all species in a taxon consistent with known community diversity patterns.
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