You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis 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
Vol. 24, No. 2 (Jun., 1970), pp. 292-303
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2406805
Page Count: 12
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.
Preview not available
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.
Evolution © 1970 Society for the Study of Evolution