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Dispersal ability links to cross-scale species diversity patterns across the Eurasian Arctic tundra
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2012 (English)In: Global Ecology and Biogeography, ISSN 1466-822X, E-ISSN 1466-8238, Vol. 21Article in journal (Refereed) Published
Abstract [en]

Aim The role of dispersal in structuring biodiversity across spatial scales is controversial. If dispersal controls regional and local community assembly, it should also affect the degree of spatial species turnover as well as the extent to which regional communities are represented in local communities. Here we provide the first integrated assessment of relationships between dispersal ability and local-to-regional spatial aspects of species diversity across a large geographical area. Location Northern Eurasia. Methods Using a cross-scale analysis covering local (0.64 m2) to continental (the Eurasian Arctic biome) scales, we compared slope parameters of the dissimilarity-to-distance relationship in species composition and the local-to-regional relationship in species richness among three plant-like groups that differ in dispersal ability: lichens with the highest dispersal ability; mosses and moss allies with intermediate dispersal ability; and seed plants with the lowest dispersal ability. Results Diversity patterns generally differed between the three groups according to their dispersal ability, even after controlling for niche-based processes. Increasing dispersal ability is linked to decreasing spatial species turnover and an increasing ratio of local to regional species richness. All comparisons supported our expectations, except for the slope of the local-to-regional relationship in species richness for mosses and moss allies which was not significantly steeper than that of seed plants. Main conclusions The negative link between dispersal ability and spatial species turnover and the corresponding positive link between dispersal ability and the ratio of local-to-regional species richness support the idea that dispersal affects community structure and diversity patterns across spatial scales.

Place, publisher, year, edition, pages
2012. Vol. 21
Keyword [en]
Arctic diaspores dispersal ability diversity patterns Eurasia lichens local-to-regional richness mosses seed plants species turnover beta-diversity ecological communities regional processes distance decay similarity consequences biogeography environment richness forests Environmental Sciences & Ecology Physical Geography
Research subject
SWEDARCTIC
Identifiers
URN: urn:nbn:se:polar:diva-1913DOI: 10.1111/j.1466-8238.2011.00733.xOAI: oai:DiVA.org:polar-1913DiVA: diva2:810391
Note

ISI Document Delivery No.: 972JW Times Cited: 10 Cited Reference Count: 51 Lenoir, Jonathan Virtanen, Risto Oksanen, Jari Oksanen, Lauri Luoto, Miska Grytnes, John-Arvid Svenning, Jens-Christian Virtanen, Risto/G-1810-2010; Svenning, Jens-Christian/C-8977-2012; Oksanen, Jari/A-5236-2013; Grytnes, John-Arvid/L-6357-2013; Luoto, Miska/E-6693-2014 Virtanen, Risto/0000-0002-8295-8217; Svenning, Jens-Christian/0000-0002-3415-0862; Finnish Cultural Foundation; Research Council of Biosciences and Environment of Finland; Swedish Polar Research Secretariat; Danish Council for Independent Research - Natural Sciences [272-07-0242]; Research Council of Norway (NFR) [184133] We thank E. Wiklund for assistance during field work, and T. Ahti, H. H. Blom, V. Petrovsky, V. Razzhivin, O. Vitikainen and M. Zhurbenko for help in species identification. We also thank A. Hampe, D. Currie and two anonymous referees for useful comments. The study was supported by the Finnish Cultural Foundation (R. V.), the Research Council of Biosciences and Environment of Finland and the Swedish Polar Research Secretariat. We gratefully acknowledge a grant by the Danish Council for Independent Research - Natural Sciences (grant 272-07-0242 to J.C.S.). J.A.G. acknowledges the Research Council of Norway (NFR grant 184133). 10 Wiley-blackwell Hoboken Ecology; Geography, Physical

Available from: 2015-05-07 Created: 2015-05-06 Last updated: 2015-05-07Bibliographically approved

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