Jump to ContentJump to Main Navigation
Molecular Panbiogeography of the Tropics$
Users without a subscription are not able to see the full content.

Michael Heads

Print publication date: 2012

Print ISBN-13: 9780520271968

Published to California Scholarship Online: September 2012

DOI: 10.1525/california/9780520271968.001.0001

Show Summary Details
Page of

PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2019. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 19 November 2019

Evolution in Space

Evolution in Space

Chapter:
(p.1) 1 Evolution in Space
Source:
Molecular Panbiogeography of the Tropics
Author(s):

Michael Heads

Publisher:
University of California Press
DOI:10.1525/california/9780520271968.003.0001

The main processes in biogeography are phylogenetic differentiation by vicariance, range expansion by normal ecological dispersal, and, in some cases, sympatric differentiation. Chance dispersal and differentiation by founder dispersal can be rejected. The location of a basal clade or a paraphyletic basal group have been thought to represent a center of origin, but this cannot be assumed. The significance of extinction is discussed with reference to the subgenera of Nothofagus, a tree that has an excellent fossil record. Groups tend to go extinct in localities where they are less diverse to begin with. The relationship between ecology and biogeography is discussed, with reference to metapopulations and weeds.

Keywords:   basal clade, paraphyletic basal group, center of origin, vicariance, dispersal, founder, range expansion, sympatric differentiation

California Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs, and if you can't find the answer there, please contact us.