Explanation of beta diversity in European alpine grasslands changes with scale

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Publikace nespadá pod Pedagogickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
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MALANSON George P. PANSING Elizabeth R. TESTOLIN Riccardo ABDULHAK Sylvain BERGAMINI Ariel CUSTEREVSKA Renata MARCENO' Corrado KUZMANOVIC Nevena MILANOVIC Dordije RUPRECHT Eszter SIBIK Jozef VASSILEV Kiril WILLNER Wolfgang JIMENEZ-ALFARO Borja

Rok publikování 2022
Druh Článek v odborném periodiku
Časopis / Zdroj Ecosphere
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://doi.org/10.1002/ecs2.4066
Doi http://dx.doi.org/10.1002/ecs2.4066
Klíčová slova beta diversity; climate; commonality analysis; dispersal limitation; distance decay; scale; similarity; substrate
Popis The importance of environmental difference among sites and dispersal limitations of species to the explanation of diversity differs among biological systems and geographical regions. We hypothesized that climate and then dispersal limitation will predominantly explain the similarity of alpine vegetation at increasing distances between pairs of regions at subcontinental extent. We computed the similarity of all pairs of 23 European mountain regions below 50° N after dividing the species lists of each region by calcareous or siliceous substrates. Distance decay in similarity was better fitted by a cubic polynomial than a negative exponential function, and the fit was better on calcareous than on siliceous substrate. Commonality analysis revealed that the proportion of explanation of beta diversity by climatic difference had unimodal patterns on a gradient of increasing distance between regions, while explanation by dispersal limitation had consistently rising patterns on both substrates. On siliceous substrate, dispersal limitation explained more of the variation in beta diversity only at longer distances, but it was predominant at all distances on calcareous substrate. The steeper response to distance at [removed]2600 km may indicate dispersal limitation at different temporal scales, and the uptick in the response to distance at the longest distances may reflect how isolated some regions have been before and since the last glacial maximum.
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