Jump to ContentJump to Main Navigation
Evolution's WedgeCompetition and the Origins of Diversity$
Users without a subscription are not able to see the full content.

David W. Pfennig and Karin S. Pfennig

Print publication date: 2012

Print ISBN-13: 9780520274181

Published to California Scholarship Online: May 2013

DOI: 10.1525/california/9780520274181.001.0001

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: 22 September 2019

Speciation

Speciation

Chapter:
(p.178) (p.179) 8 Speciation
Source:
Evolution's Wedge
Author(s):

David W. Pfennig

Karin S. Pfennig

Publisher:
University of California Press
DOI:10.1525/california/9780520274181.003.0008

New species form during an extended process, which often begins when populations become physically separated and ends when they come into secondary contact and possess or subsequently evolve barriers to gene exchange. Selection can play an important role in promoting population divergence and reproductive isolation. Character displacement, in particular, potentially plays a key role in speciation by finalizing boundaries between incipient species that diverged in allopatry, by initiating divergence between populations in sympatry and allopatry with heterospecifics, and by initiating and finalizing differentiation of alternative morphs. Although character displacement's contribution to diversification has traditionally focused on its role in maintaining and enhancing differences between existing species, it might play an equally crucial role in generating new species.

Keywords:   alternative morphs, population divergence, reproductive isolation, speciation, sympatric speciation

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.