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Title: Assemblage time series reveal biodiversity change but not systematic loss
Authors: Dornelas, Maria
Gotelli, Nicholas J.
McGill, Brian
Shimadzu, Hideyasu
Moyes, Faye
Sievers, Caya
Magurran, Anne E.
Issue Date: 2014
Publisher: American Association for the Advancement of Science / © The Authors
Citation: DORNELAS, M., ... et al, 2014. Assemblage time series reveal biodiversity change but not systematic loss. Science, 344 (6181), pp. 296 - 299.
Abstract: The extent to which biodiversity change in local assemblages contributes to global biodiversity loss is poorly understood. We analyzed 100 time series from biomes across Earth to ask how diversity within assemblages is changing through time. We quantified patterns of temporal α diversity, measured as change in local diversity, and temporal β diversity, measured as change in community composition. Contrary to our expectations, we did not detect systematic loss of α diversity. However, community composition changed systematically through time, in excess of predictions from null models. Heterogeneous rates of environmental change, species range shifts associated with climate change, and biotic homogenization may explain the different patterns of temporal α and β diversity. Monitoring and understanding change in species composition should be a conservation priority.
Description: This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science, 344 (6181), pp. 296 - 299 on 18th April 2014, doi: 10.1126/science.1248484. The definitive version is available at: http://dx.doi.org/10.1126/science.1248484.
Sponsor: Supported by the European Research Council (BioTIME 250189), the Scottish Funding Council (MASTS, grant reference HR09011) (M.D.), and the Royal Society (A.E.M.).
Version: Accepted for publication
DOI: 10.1126/science.1248484
URI: https://dspace.lboro.ac.uk/2134/21000
Publisher Link: http://dx.doi.org/10.1126/science.1248484
ISSN: 0036-8075
Appears in Collections:Published Articles (Maths)

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