Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Embryonic Growth of the Green Iguana Iguana iguana

Robert E. Ricklefs and John Cullen
Copeia
Vol. 1973, No. 2 (May 22, 1973), pp. 296-305
DOI: 10.2307/1442968
Stable URL: http://www.jstor.org/stable/1442968
Page Count: 10
  • Read Online (Free)
  • Download ($12.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Embryonic Growth of the Green Iguana Iguana iguana
Preview not available

Abstract

A series of green iguana embryos of known age is analyzed to assess growth rate, allometric relationships between linear measurements and energetic efficiency of development. These data are compared to embryonic development in the chicken. The iguana embryos grew at a constant exponential rate during most of the development period; their water content continually decreased. Relative growth rates of body components were more nearly similar to each other than in chicken embryos; the limbs grew relatively faster than the trunk and head. Growth rates of iguana embryos was much slower than chicken embryos and it was less efficient energetically. Data on postnatal growth indicate that growth rate varies seasonally and decreases by about 50% each year.

Page Thumbnails

  • Thumbnail: Page 
296
    296
  • Thumbnail: Page 
297
    297
  • Thumbnail: Page 
298
    298
  • Thumbnail: Page 
299
    299
  • Thumbnail: Page 
300
    300
  • Thumbnail: Page 
301
    301
  • Thumbnail: Page 
302
    302
  • Thumbnail: Page 
303
    303
  • Thumbnail: Page 
304
    304
  • Thumbnail: Page 
305
    305