Document Detail


Human disturbance affects the long-term spatial synchrony of freshwater invertebrate communities.
MedLine Citation:
PMID:  25463726     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Taxonomic and trait composition of invertebrate communities were investigated for 4 reference and 5 disturbed Mediterranean stream sites over a 18 y period, to test the hypotheses that: 1) human disturbance reduces the resilience of communities to extreme climatic events by affecting their functional structure; 2) and as a result, extreme climatic events could lead to asynchronous responses of communities from streams with similar environmental characteristics but differently affected by human disturbance. In reference sites, trait compositions changed differently (were less similar over time) in response to extreme events and variation was less synchronic than taxonomic compositions in the same sites. Oppositely, in disturbed sites there was a marked synchrony in trait composition indicating a functional homogenization in response to human pressures. This limitation in "functional diversity" may involve a lower ability to respond to climatic extreme events and also a reduced potential in ecosystem services.
Authors:
M J Feio; S Dolédec; M A S Graça
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-9
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  196C     ISSN:  1873-6424     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-12-2     Completed Date:  -     Revised Date:  2014-12-3    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  -    
Other Details:
Languages:  ENG     Pagination:  300-308     Citation Subset:  -    
Copyright Information:
Copyright © 2014 Elsevier Ltd. All rights reserved.
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