Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 16 May 2008:
Vol. 320. no. 5878, p. 874
DOI: 10.1126/science.1155114
Prev | Table of Contents | Next

Technical Comments

Comment on "Habitat Split and the Global Decline of Amphibians"

David C. Cannatella

Section of Integrative Biology, University of Texas, Austin, TX 78712, USA. E-mail: catfish{at}mail.utexas.edu


Figure 1 Fig. 1. (A) The left y axis shows the proportions of aquatic-reproducing species for 12 sites (black squares with total number of species) against habitat split. The right y axis shows the probability (from the dotted logistic regression line) of any sampled species being aquatic for a given value of habitat split. The regression slope is not different than 0 (P = 0.596). Although the logistic regression line appears linear over the range shown, it is actually a curvilinear function. (B) Plot of data from Becker et al. (2). The slopes of the regression lines for aquatic and terrestrial species are not significantly different (analysis of covariance, P = 0.116). [View Larger Version of this Image (29K GIF file)]
 

ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)