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Asymmetric coevolutionary networks facilitate biodiversity maintenance
Author(s): Bascompte J, Jordano P, Olesen JM
Source: SCIENCE    Volume: 312    Issue: 5772    Pages: 431-433    Published: APR 21 2006  
Times Cited: 100     References: 25     
Abstract: The mutualistic interactions between plants and their pollinators or seed dispersers have played a major role in the maintenance of Earth's biodiversity. To investigate how coevolutionary interactions are shaped within species-rich communities, we characterized the architecture of an array of quantitative, mutualistic networks spanning a broad geographic range. These coevolutionary networks are highly asymmetric, so that if a plant species depends strongly on an animal species, the animal depends weakly on the plant. By using a simple dynamical model, we showed that asymmetries inherent in coevolutionary networks may enhance long-term coexistence and facilitate biodiversity maintenance.
Document Type: Article
Language: English
Reprint Address: Bascompte, J (reprint author), CSIC, Estac Biol Donana, Integrat Ecol Grp, Apartado 1056, E-41080 Seville, Spain
Addresses:
1. CSIC, Estac Biol Donana, Integrat Ecol Grp, E-41080 Seville, Spain
2. Aarhus Univ, Dept Ecol & Genet, DK-8000 Aarhus, Denmark
Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
Subject Category: Multidisciplinary Sciences
IDS Number: 034OZ
ISSN: 0036-8075
DOI: 10.1126/science.1123412
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