Document Detail

Field experimental evidence for diffuse competition among Southwestern riparian birds.
MedLine Citation:
PMID:  19426044     Owner:  NLM     Status:  PubMed-not-MEDLINE    
In a 6-yr study of 70 generally insectivorous bird species in Arizona riparian woodlands, abundances of cavity-nesting species increased on 50 experimental plots compared with 49 control plots, following addition of artificial nest boxes. Open-nesting birds increased in abundance on control plots during the study but avoided experimental plots relative to control plots after box addition. Multivariate analysis revealed that a negative response of open nesters to the experiment was widespread among a large and ecologically diverse group of species. Results of this field experiment suggest that communitywide (diffuse) competition was an important factor influencing the distribution and abundance of birds in these riparian ecosystems.
C E Bock; A Cruz; M C Grant; C S Aid; T R Strong
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American naturalist     Volume:  140     ISSN:  0003-0147     ISO Abbreviation:  Am. Nat.     Publication Date:  1992 Nov 
Date Detail:
Created Date:  2009-05-11     Completed Date:  2009-06-15     Revised Date:  2009-06-16    
Medline Journal Info:
Nlm Unique ID:  2984688R     Medline TA:  Am Nat     Country:  United States    
Other Details:
Languages:  eng     Pagination:  815-28     Citation Subset:  -    
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