Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/97465
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Type: | Journal article |
Title: | Network complexity and species traits mediate the effects of biological invasions on dynamic food webs |
Author: | Lurgi, M. Galiana, N. Lopez, B. Joppa, L. Montoya, J. |
Citation: | Frontiers in Ecology and Evolution, 2014; 2:36-1-36-11 |
Publisher: | Frontiers |
Issue Date: | 2014 |
ISSN: | 2296-701X 2296-701X |
Statement of Responsibility: | Miguel Lurgi, Núria Galiana, Bernat C. López, Lucas N. Joppa, and José M. Montoya |
Abstract: | Biological invasions are a major threat to natural communities worldwide. While several species traits have been identified as important determinants of invasion success, a systematic exploration of the effects of invasions on native communities, and the role of species and community features on community robustness in the face of invasion is lacking. We present a theoretical approximation considering food web structure and species population dynamics to study the effects of invasions on complex food webs. We find that less complex (i.e., less connected) food webs are more resistant to invasions. Simulated invasions promote profound changes in several food web properties and stability measures, such as decreases in modularity and the number of food chains from basal to top species; and a decoupling of community- and population-level temporal variability. Additionally, species traits such as body size and diet breadth are strong determinants of invasion success across several trophic levels, with larger and more generalist species being more successful invaders in general. Our work complements species-centered invasion studies by adding a more holistic and systematic perspective to the study of invasions on species interaction networks. |
Keywords: | dynamical systems ecological networks network complexity stability invasive species community assembly bio-energetic model species interactions |
Rights: | Copyright © 2014 Lurgi, Galiana, López, Joppa and Montoya. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
DOI: | 10.3389/fevo.2014.00036 |
Published version: | http://dx.doi.org/10.3389/fevo.2014.00036 |
Appears in Collections: | Aurora harvest 7 Ecology, Evolution and Landscape Science publications |
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hdl_97465.pdf | Published version | 1.15 MB | Adobe PDF | View/Open |
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