Document Detail


Geographical ecology of Paraguayan bats: spatial integration and metacommunity structure of interacting assemblages.
MedLine Citation:
PMID:  17922705     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined the relative contributions of regional spatial characteristics and local environmental conditions in determining Paraguayan bat species composition. We used a suite of full and partial redundancy analyses to estimate four additive partitions of variance in bat species composition: (a) unexplained variation, (b) that explained purely by spatial characteristics, (c) that explained purely by local environmental conditions and (d) that explained jointly by space and environment. The spatial component to bat species composition was greater than the environmental component and both pure spatial and pure environmental characteristics accounted for significant amounts of variation in bat species composition. Results from variance decomposition suggest that the mass effects model describes metacommunity structure of Paraguayan bats better than species sorting or neutral models. Such mass effects may potentially be general for bats and could explain the inability of purely local factors to fully account for bat community organization. Mass effects also have substantial conservation implications because rescue effects may enhance the persistence of mobile species in fragmented landscapes with relatively few protected sites.
Authors:
Richard D Stevens; Celia López-González; Steven J Presley
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  The Journal of animal ecology     Volume:  76     ISSN:  0021-8790     ISO Abbreviation:  J Anim Ecol     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-09     Completed Date:  2007-12-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376574     Medline TA:  J Anim Ecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1086-93     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA. rstevens@lsu.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Biodiversity*
Chiroptera / physiology*
Conservation of Natural Resources
Demography
Ecosystem*
Female
Male
Models, Biological*
Paraguay
Population Density
Population Dynamics
Species Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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