Document Detail

Survival in an extreme habitat: the roles of behaviour and energy limitation.
MedLine Citation:
PMID:  17639290     Owner:  NLM     Status:  MEDLINE    
Extreme habitats challenge animals with highly adverse conditions, like extreme temperatures or toxic substances. In this paper, we report of a fish (Poecilia mexicana) inhabiting a limestone cave in Mexico. Several springs inside the cave are rich in toxic H(2)S. We demonstrate that a behavioural adaptation, aquatic surface respiration (ASR), allows for the survival of P. mexicana in this extreme, sulphidic habitat. Without the possibility to perform ASR, the survival rate of P. mexicana was low even at comparatively low H(2)S concentrations. Furthermore, we show that food limitation affects the survival of P. mexicana pointing to energetically costly physiological adaptations to detoxify H(2)S.
Martin Plath; Michael Tobler; Rüdiger Riesch; Francisco J García de León; Olav Giere; Ingo Schlupp
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-07-18
Journal Detail:
Title:  Die Naturwissenschaften     Volume:  94     ISSN:  0028-1042     ISO Abbreviation:  Naturwissenschaften     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-16     Completed Date:  2008-04-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0400767     Medline TA:  Naturwissenschaften     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  991-6     Citation Subset:  IM    
Unit of Evolutionary Biology and Systematic Zoology, Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, Potsdam, Germany.
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MeSH Terms
Animal Feed
Behavior, Animal
Energy Metabolism
Oxygen Consumption
Poecilia / physiology*
Population Density

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