| Positive interactions and the emergence of community structure in metacommunities. | |
| | |
MedLine Citation:
|
PMID: 20627108 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
The significant role of space in maintaining species coexistence and determining community structure and function is well established. However, community ecology studies have mainly focused on simple competition and predation systems, and the relative impact of positive interspecific interactions in shaping communities in a spatial context is not well understood. Here we employ a spatially explicit metacommunity model to investigate the effect of local dispersal on the structure and function of communities in which species are linked through an interaction web comprising mutualism, competition and exploitation. Our results show that function, diversity and interspecific interactions of locally linked communities undergo a phase transition with changes in the rate of species dispersal. We find that low spatial interconnectedness favors the spontaneous emergence of strongly mutualistic communities which are more stable but less productive and diverse. On the other hand, high spatial interconnectedness promotes local biodiversity at the expense of local stability and supports communities with a wide range of interspecific interactions. We argue that investigations of the relationship between spatial processes and the self-organization of complex interaction webs are critical to understanding the geographic structure of interactions in real landscapes. |
| | |
Authors:
|
Elise Filotas; Martin Grant; Lael Parrott; Per Arne Rikvold |
Related Documents
:
|
20462118 - Complex interactions between regional dispersal of native taxa and an invasive species. 12537098 - Spatial and temporal variations in the trematode component community of the mudsnail hy... 15074608 - Biotic diversity of natchez trace state forest, western tennessee. 14746358 - Intestinal parasitoses. 12347938 - China reports increase in aids cases. 20462118 - Complex interactions between regional dispersal of native taxa and an invasive species. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2010-07-11 |
Journal Detail:
|
Title: Journal of theoretical biology Volume: 266 ISSN: 1095-8541 ISO Abbreviation: J. Theor. Biol. Publication Date: 2010 Oct |
Date Detail:
|
Created Date: 2010-08-24 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0376342 Medline TA: J Theor Biol Country: England |
Other Details:
|
Languages: eng Pagination: 419-29 Citation Subset: IM |
Copyright Information:
|
2010 Elsevier Ltd. All rights reserved. |
Affiliation:
|
Complex Systems Laboratory, Département de Géographie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C3J7, Canada. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Balancing organization and flexibility in foraging dynamics.
Next Document: Multiple equilibrium states in a micro-vascular network.