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.

Convergent Evolution of Mediterranean-Climate Evergreen Sclerophyll Shrubs

Harold A. Mooney and E. Lloyd Dunn
Evolution
Vol. 24, No. 2 (Jun., 1970), pp. 292-303
DOI: 10.2307/2406805
Stable URL: http://www.jstor.org/stable/2406805
Page Count: 12
  • Read Online (Free)
  • Download ($4.00)
  • 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.
Convergent Evolution of Mediterranean-Climate Evergreen Sclerophyll Shrubs
Preview not available

Abstract

The vegetations found in the mediterranean climate regions of the world are highly convergent in form, although they have had distinct evolutionary histories. There are numerous selective forces in this climatic type, such as fire, drought, high temperatures, rainfall unpredictability, and mineral deficiencies. These multiple selective forces are often interacting and involve the biotic as well as the physical components. A solution to any one of these selective forces in turn creates new adaptive challenges. Thus, the total possible solutions to the various combinations of forces becomes limited, leading to convergence in form and function.

Page Thumbnails

  • Thumbnail: Page 
292
    292
  • Thumbnail: Page 
293
    293
  • Thumbnail: Page 
294
    294
  • Thumbnail: Page 
295
    295
  • 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