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Specialization, Speciation, and RadiationThe Evolutionary Biology of Herbivorous Insects$
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Kelley Tilmon

Print publication date: 2008

Print ISBN-13: 9780520251328

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520251328.001.0001

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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: 18 September 2021

Life-History Evolution in Native and Introduced Populations

Life-History Evolution in Native and Introduced Populations

Chapter:
(p.296) Twenty-One Life-History Evolution in Native and Introduced Populations
Source:
Specialization, Speciation, and Radiation
Author(s):

Robert F. Denno

Merrill A. Peterson

Matthew R. Weaver

David J. Hawthorne

Publisher:
University of California Press
DOI:10.1525/california/9780520251328.003.0021

Many of the best examples of rapid directional selection of life-history traits involve invasive species. The evolution of such traits in introduced populations may be rapid in part because some traits, such as dispersal and high reproductive potential, may promote the colonization of novel habitats, whereas a different suite of traits may be favored in the newly colonized region. This chapter explores the evolution of life-history traits in native and introduced populations, focusing on Prokelisia planthoppers and their only host plants, Spartina cordgrasses. Prokelisia planthoppers are small phloem-feeding herbivorous insects while Spartina cordgrasses grow as expansive monocultures in intertidal salt marshes. The chapter looks at the life-history strategy and dispersal ecology of Prokelisia planthoppers, the geographic distribution of the insect and host, the geographic source of introduced species, genetic variation in introduced and native species, reproductive traits, voltinism, the genetics of geographic variation in the incidence of dispersal, and habitat factors underlying geographic variation in dispersal.

Keywords:   Prokelisia, planthoppers, Spartina, cordgrasses, evolution, life-history traits, native species, introduced species, genetic variation, geographic variation

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