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Experimental EvolutionConcepts, Methods, and Applications of Selection Experiments$
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Theodore

Print publication date: 2009

Print ISBN-13: 9780520247666

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520247666.001.0001

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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: 17 September 2021

Physiological Adaptation in Laboratory Environments

Physiological Adaptation in Laboratory Environments

Chapter:
(p.522) (p.523) 17 Physiological Adaptation in Laboratory Environments
Source:
Experimental Evolution
Author(s):

Allen G. Gibbs

Eran Gefen

Publisher:
University of California Press
DOI:10.1525/california/9780520247666.003.0017

This chapter considers two categories of environmental variables that have been used as selective agents in laboratory natural-selection experiments. Temperature is the most important and common physical variable affecting the distribution and abundance of organisms in nature. The second category is resource variables—chemicals organisms need for survival and reproduction, energy sources and water being the most fundamental. The chapter presents studies of temperature stress in Drosophila, temperature selection in microbes, osmotic stress in aquatic environments, resource limitation in insects, nutritional selection in bacteria, and dessication selection in Drosophilia.

Keywords:   natural selection, temperature, resource variables, energy sources, water, Drosophilia, microbes, osmotic stress, resource limitation, nutritional selection

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