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

Abstract : 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.
Document type :
Journal articles
Liste complète des métadonnées

https://hal-univ-rennes1.archives-ouvertes.fr/hal-01936819
Contributor : Laurent Jonchère <>
Submitted on : Tuesday, December 4, 2018 - 4:43:11 PM
Last modification on : Friday, April 12, 2019 - 4:24:50 PM

File

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2019-05-05

Please log in to resquest access to the document

Identifiers

Citation

Emanuel A Fronhofer, Delphine Legrand, Florian Altermatt, Armelle Ansart, Simon Blanchet, et al.. Bottom-up and top-down control of dispersal across major organismal groups. Nature Ecology & Evolution, Nature, 2018, 2 (12), pp.1859-1863. ⟨10.1038/s41559-018-0686-0⟩. ⟨hal-01936819⟩

Share

Metrics

Record views

142