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

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

in 631/158 / 631/158/2039 / 631/158/853 / 631/158/856 / 64 / Active control / Animal Migration / Animals / Biodiversity and Ecology / Biological and Physical Anthropology / Biomedical and Life Sciences / Brief Communication / Cryptophyta - physiology / Dispersal / Dispersion / Ecology / Ecosystem / Emigration / Environmental Sciences / Environmental sciences & ecology / Evolutionary Biology / Hymenostomatida - physiology / Invertebrates - physiology / Laboratory tests / Life Sciences / Models, Biological / Paleontology / Population Dynamics / Predation / Protozoa / Sciences de l’environnement & écologie / Sciences du vivant / Vertebrates / Vertebrates - physiology / Zoology

2018

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

2018

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2018

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Journal Article

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

Manzi, Florent,

Ansart, Armelle,

Schtickzelle, Nicolas,

Fronhofer, Emanuel A.,

Blanchet, Simon,

De Laender, Frederik,

Pennekamp, Frank,

Cote, Julien,

De Raedt, Jonathan,

Jacob, Staffan,

Masier, Stefano,

Little, Chelsea J.,

Bonte, Dries,

Vong, Alexandre,

Pellerin, Felix,

Madec, Luc,

Dahirel, Maxime,

Winandy, Laurane,

Legrand, Delphine,

Therry, Lieven,

di Gesu, Lucie,

Altermatt, Florian,

Laurent, Estelle,

Kaltz, Oliver,

Chaine, Alexis

2018

Overview

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. In a coordinated distributed dispersal experiment involving seven laboratories, the authors show that both top-down predation risk and bottom-up resource limitation increase emigration rates across 21 species ranging from protozoa to vertebrates.

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Nature Publishing Group UK,Nature Publishing Group,Nature,Springer

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