Document Detail


Invariant size-frequency distributions along a latitudinal gradient in marine bivalves.
MedLine Citation:
PMID:  11087865     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In the most extensive analysis of body size in marine invertebrates to date, we show that the size-frequency distributions of northeastern Pacific bivalves at the provincial level are surprisingly invariant in modal and median size as well as size range, despite a 4-fold change in species richness from the tropics to the Arctic. The modal sizes and shapes of these size-frequency distributions are consistent with the predictions of an energetic model previously applied to terrestrial mammals and birds. However, analyses of the Miocene-Recent history of body sizes within 82 molluscan genera show little support for the expectation that the modal size is an evolutionary attractor over geological time.
Authors:
K Roy; D Jablonski; K K Martien
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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:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  97     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  2000 Nov 
Date Detail:
Created Date:  2000-12-12     Completed Date:  2001-05-24     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  13150-5     Citation Subset:  IM    
Affiliation:
Section of Ecology, Behavior, and Evolution, Division of Biology, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0116, USA. kroy@ucsd.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Constitution*
Ecosystem
Geography
Mollusca* / anatomy & histology,  physiology
Pacific Ocean
Comments/Corrections

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