Eco-Evolutionary Spatial Dynamics. Rapid Evolution and Isolation Explain Food Web Persistence

Moya-Laraño, Jordi; Bilbao-Castro, José Román; Barrionuevo, Gabriel; Ruiz-Lupión, Dolores; Casado, Leocadio G.; Montserrat, Marta; Melian Penate, Carlos Javier; Magalhães, Sara (2014). Eco-Evolutionary Spatial Dynamics. Rapid Evolution and Isolation Explain Food Web Persistence. In: Moya-Laraño, Jordi; Rowntree, Jennifer; Woodward, Guy (eds.) Advances in Ecological Research. Advances in Ecological Research: Vol. 50 (pp. 75-143). Elsevier 10.1016/B978-0-12-801374-8.00003-7

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One of the current challenges in evolutionary ecology is understanding the long-term persistence of contemporary-evolving predator–prey interactions across space and time. To address this, we developed an extension of a multi-locus, multi-trait eco-evolutionary individual-based model that incorporates several interacting species in explicit landscapes. We simulated eco-evolutionary dynamics of multiple species food webs with different degrees of connectance across soil-moisture islands. A broad set of parameter combinations led to the local extinction of species, but some species persisted, and this was associated with (1) high connectance and omnivory and (2) ongoing evolution, due to multi-trait genetic variability of the embedded species. Furthermore, persistence was highest at intermediate island distances, likely because of a balance between predation-induced extinction (strongest at short island distances) and the coupling of island diversity by top predators, which by travelling among islands exert global top-down control of biodiversity. In the simulations with high genetic variation, we also found widespread trait evolutionary changes indicative of eco-evolutionary dynamics. We discuss how the ever-increasing computing power and high-resolution data availability will soon allow researchers to start bridging the in vivo–in silico gap.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Aquatic Ecology

UniBE Contributor:

Melian Penate, Carlos Javier

Subjects:

500 Science > 570 Life sciences; biology

ISBN:

978-0-12-801374-8

Series:

Advances in Ecological Research

Publisher:

Elsevier

Language:

English

Submitter:

Marcel Häsler

Date Deposited:

23 Dec 2014 10:18

Last Modified:

23 Dec 2014 10:18

Publisher DOI:

10.1016/B978-0-12-801374-8.00003-7

URI:

https://boris.unibe.ch/id/eprint/61113

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