Document Detail

Terrestrial carbon and intraspecific size-variation shape lake ecosystems.
MedLine Citation:
PMID:  17339067     Owner:  NLM     Status:  MEDLINE    
Conceptual models of lake ecosystem structure and function have generally assumed that energy in pelagic systems is derived from in situ photosynthesis and that its use by higher trophic levels depends on the average properties of individuals in consumer populations. These views are challenged by evidence that allochthonous subsidies of organic carbon greatly influence energy mobilization and transfer and the trophic structure of pelagic food webs, and that size variation within consumer species has major ramifications for lake community dynamics and structure. These discoveries represent conceptual shifts that have yet to be integrated into current views on lake ecosystems. Here, we assess key aspects of energy mobilization and size-structured community dynamics, and show how these processes are intertwined in pelagic food webs.
Mats Jansson; Lennart Persson; André M De Roos; Roger I Jones; Lars J Tranvik
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Publication Detail:
Type:  Journal Article; Review     Date:  2007-03-06
Journal Detail:
Title:  Trends in ecology & evolution     Volume:  22     ISSN:  0169-5347     ISO Abbreviation:  Trends Ecol. Evol. (Amst.)     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-05-21     Completed Date:  2007-09-13     Revised Date:  2011-05-03    
Medline Journal Info:
Nlm Unique ID:  8805125     Medline TA:  Trends Ecol Evol     Country:  England    
Other Details:
Languages:  eng     Pagination:  316-22     Citation Subset:  IM    
Department of Ecology and Environmental Science, Umeå University, SE-90187 Umeå, Sweden.
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MeSH Terms
Body Size / physiology*
Carbon / physiology*
Energy Transfer*
Fresh Water*
Reg. No./Substance:

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