spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

First published online September 9, 2003
This Article
Right arrow Summary Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Odell, J. P.
Right arrow Articles by Dickson, K. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Odell, J. P.
Right arrow Articles by Dickson, K. A.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Morphological and enzymatic correlates of aerobic and burst performance in different populations of Trinidadian guppies Poecilia reticulata

Jason P. Odell1,*, Mark A. Chappell1,{dagger} and Kathryn A. Dickson2

1 Department of Biology, University of California, Riverside, CA 92521, USA
2 Department of Biological Science, California State University, Fullerton, CA 92834, USA



View larger version (18K):

[in a new window]
  		Fig. 1. Relationship between length and body mass in guppies from six populations. The expected scaling for geometrically similar shapes (mass varies as length3) is shown by the thin diagonal line. The following populations had length exponents significantly different from 3.0: Quare males (3.17, P<0.05); Yarra Tributary males (3.54, P=0.01); Oropouche females (3.62, P<0.05); Quare females (3.26, P<0.05); Yarra Tributary females (3.31, P<0.01).

 


View larger version (25K):

[in a new window]
  		Fig. 2. Organ mass variation of (A) heart, (B) gill and (C) swimming motor in male and female guppies. Data are expressed as percentage of predicted values from a mass regression (a value of 100% indicates that the observed value equals the predicted value). Average percentage differences from predicted values are shown for each variable.

 


View larger version (25K):

[in a new window]
  		Fig. 3. Variation in the activities of (A) lactate dehydrogenase (LDH), (B) citrate synthetase (CS) and (C) myofibrillar ATPase (ATPase) in male and female guppies. Data are shown as percentage of predicted values from a mass regression (LDH, male CS) or as percentage of mean value (ATPase; female CS). The average percentage difference from predicted values is shown for each variable.

 


View larger version (20K):

[in a new window]
  		Fig. 4. Principal components scores by population for male and female guppies. Asterisks show significant differences from planned comparisons (*P<0.05; **P<0.01; ***P<0.001). High predation locales are represented by solid squares; low predation locales are indicated by open circles; values are means ±1 S.E.M. Variables with significant factor loadings are indicated on each axis. Differences between drainages were significant in both analyses, but cannot be distinguished unequivocally from block effects.

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?



© The Company of Biologists Ltd 2003