Bottom-up and top-down control of dispersal across major organismal groups

Emanuel Fronhofer, Delphine Legrand, Florian Altermatt, Armelle Ansart, Simon Blanchet, Dries Bonte, Alexis Chaine, Maxime Dahirel, Frédérik De Laender, Jonathan De Raedt, Lucie di Gesu, Staffan Jacob, Oliver Kaltz, Estelle Laurent, Chelsea J. Little, Luc Madec, Florent Manzi, Stefano Masier, Felix Pellerin, Frank PennekampNicolas Schtickzelle, Lieven Therry, Alexandre Vong, Laurane Winandy, Julien Cote

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Résumé

Ecology and evolution unfold in spatially structured communities, where dispersal links dynamics across scales. Because dispersal is multicausal, identifying general drivers remains challenging. In a coordinated distributed experiment spanning
organisms from protozoa to vertebrates, we tested whether two fundamental determinants of local dynamics, top-down and bottom-up control, generally explain active dispersal. We show that both factors consistently increased emigration
rates and use metacommunity modelling to highlight consequences on local and regional dynamics
langue originaleAnglais
Pages (de - à)1859-1863
Nombre de pages5
journalNature Ecology and Evolution
Volume2
Numéro de publication12
Les DOIs
Etat de la publicationPublié - 1 déc. 2018

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