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Life history evolution in response to changes in metapopulation structure in an arthropod herbivore

A De Roissart, N Wybouw, D Renault, T Van Leeuwen, D Bonte
doi: https://doi.org/10.1101/021683
A De Roissart
1Ghent University, Dep. Biology, Terrestrial Ecology Unit, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium
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  • For correspondence: Annelies.DeRoissart@ugent.be
N Wybouw
2Ghent University, Dep. Crop Protection, Laboratory of Agrozoology, Coupure Links 653, B-9000 Ghent, Belgium
3University of Amsterdam, Institute for Biodiversity and Ecosystem Dynamics, Science Park 904, 1098 XH Amsterdam, the Netherlands
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  • For correspondence: N.R.Wybouw@uva.nl
D Renault
4Université de Rennes 1, UMR 6553 ECOBIO CNRS, Avenue du Gal Leclerc 263, CS 74205, 35042 Rennes Cedex, France
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  • For correspondence: David.Renault@univ-rennes1.fr
T Van Leeuwen
2Ghent University, Dep. Crop Protection, Laboratory of Agrozoology, Coupure Links 653, B-9000 Ghent, Belgium
3University of Amsterdam, Institute for Biodiversity and Ecosystem Dynamics, Science Park 904, 1098 XH Amsterdam, the Netherlands
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  • For correspondence: Thomas.VanLeeuwen@ugent.be
D Bonte
1Ghent University, Dep. Biology, Terrestrial Ecology Unit, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium
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  • For correspondence: dries.bonte@ugent.be
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Abstract

  1. The persistence and dynamics of populations largely depends on the way they are configured and integrated into space and the ensuing eco-evolutionary dynamics.

  2. We manipulated spatial and temporal variation in patch size in replicated experimental metapopulations of the herbivore mite Tetranychus urticae and followed evolutionary dynamics over approximately 30 generations.

  3. A significant divergence in life history traits, physiological endpoints and gene expression was recorded in the spatially and spatiotemporally variable metapopulation, but also a remarkable convergence relative to the stable reference metapopulation in traits related to size and fecundity and in its transcriptional regulation.

  4. The observed evolutionary dynamics are tightly linked to demographic changes, more specifically frequent episodes of resource shortage that increased the reproductive performance of mites on tomato, a challenging host plant. This points towards a general, adaptive stress response in stable spatial variable and spatiotemporal variable metapopulations that pre-adapts a herbivore arthropod to novel environmental stressors.

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Posted October 09, 2015.
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Life history evolution in response to changes in metapopulation structure in an arthropod herbivore
A De Roissart, N Wybouw, D Renault, T Van Leeuwen, D Bonte
bioRxiv 021683; doi: https://doi.org/10.1101/021683
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Life history evolution in response to changes in metapopulation structure in an arthropod herbivore
A De Roissart, N Wybouw, D Renault, T Van Leeuwen, D Bonte
bioRxiv 021683; doi: https://doi.org/10.1101/021683

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