A meta-analysis of nestedness and turnover components of beta diversity across organisms and ecosystems

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http://hdl.handle.net/10138/237776

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Soininen , J , Heino , J & Wang , J 2018 , ' A meta-analysis of nestedness and turnover components of beta diversity across organisms and ecosystems ' , Global Ecology and Biogeography , vol. 27 , no. 1 , pp. 96-109 . https://doi.org/10.1111/geb.12660

Title: A meta-analysis of nestedness and turnover components of beta diversity across organisms and ecosystems
Author: Soininen, Janne; Heino, Jani; Wang, Jianjun
Contributor: University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Department of Geosciences and Geography
Date: 2018-01
Language: eng
Number of pages: 14
Belongs to series: Global Ecology and Biogeography
ISSN: 1466-822X
URI: http://hdl.handle.net/10138/237776
Abstract: Aim: The number of studies investigating the nestedness and turnover components of beta diversity has increased substantially, but our general understanding of the drivers of turnover and nestedness remains elusive. Here, we examined the effects of species traits, spatial extent, latitude and ecosystem type on the nestedness and turnover components of beta diversity. Location: Global. Time period: 1968-2017. Major taxa studied: From bacteria to mammals. Methods: From the 99 studies that partition total beta diversity into its turnover and nestedness components, we assembled 269 and 259 data points for the pairwise and multiple site beta-diversity metrics, respectively. Our data covered a broad variation in species dispersal type, body size and trophic position. The data were from freshwater, marine and terrestrial realms, and encompassed geographical areas from the tropics to near polar regions. We used linear modelling as a meta-regression tool to analyse the data. Results: Pairwise turnover, multiple site turnover and total beta diversity all decreased significantly with latitude. In contrast, multiple site nestedness showed a positive relationship with latitude. Beta-diversity components did not generally differ among the realms. The turnover component and total beta diversity increased with spatial extent, whereas nestedness was scale invariant for pairwise metrics. Multiple site beta-diversity components did not vary with spatial extent. Surprisingly, passively dispersed organisms had lower turnover and total beta diversity than flying organisms. Body size showed a relatively weak relationship with beta diversity but had important interactions with trophic position, thus also affecting beta diversity via interactive effects. Producers had significantly higher average pairwise turnover and total beta diversity than carnivores. Main conclusions: The present results provide evidence that species turnover, being consistently the larger component of total beta diversity, and nestedness are related to the latitude of the study area and intrinsic organismal features. We showed that two beta-diversity components had generally opposing patterns with regard to latitude. We highlight that beta-diversity partition may give additional insights into the underlying causes of spatial variability in biotic communities compared with total beta diversity alone.
Subject: 1172 Environmental sciences
1181 Ecology, evolutionary biology
biodiversity
body size
dispersal
global
macroecology
meta-analysis
nestedness
turnover
PRESENCE-ABSENCE DATA
FRESH-WATER FISH
ENVIRONMENTAL HETEROGENEITY
METACOMMUNITY STRUCTURE
FUNCTIONAL BIODIVERSITY
GEOGRAPHICAL PATTERNS
LATITUDINAL GRADIENTS
AQUATIC COMMUNITIES
SPECIES-DIVERSITY
BIRD COMMUNITIES
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