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, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 26 September 2021

Diversity And Novelty Within Species

Diversity And Novelty Within Species

(p.105) 5 Diversity And Novelty Within Species
Evolution's Wedge

David W. Pfennig

Karin S. Pfennig

University of California Press

Intraspecific competition can have a profound influence on shaping diversity within species. Intraspecific competition can promote niche-width expansion, sexual dimorphism, and resource or mating polymorphism. Such polymorphisms are of interest in their own right, because they provide some of the most dramatic examples of diversity within species. Indeed, the process of diversification and innovation may often begin within species, through the evolution of such alternative phenotypes. Intraspecific divergence is also potentially important, however, because of its possible role in facilitating character displacement between species and possibly even speciation. In short, intraspecific competition for resources and mates can have far-reaching impacts on the origins of diversity, from promoting diversity and novelty within populations to promoting diversity between species.

Keywords:   alternative phenotypes, intraspecific character displacement, intraspecific competition, mating polymorphism, niche-width expansion, novelty, resource polymorphism

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.