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What Is Fitness?

James A.R. Marshall

in Social Evolution and Inclusive Fitness Theory: An Introduction

Published in print:
2015
Published Online:
October 2017
ISBN:
9780691161563
eISBN:
9781400866564
Item type:
chapter
Publisher:
Princeton University Press
DOI:
10.23943/princeton/9780691161563.003.0009
Subject:
Biology, Evolutionary Biology / Genetics

This chapter considers the problem of correctly defining fitness costs and benefits in inclusive fitness theory, when competition occurs between offspring who are relatives. It reviews the definition ... More


Testing hypotheses about parasite-mediated selection using odonate hosts

Mark R. Forbes and Tonia Robb

in Dragonflies and Damselflies: Model Organisms for Ecological and Evolutionary Research

Published in print:
2008
Published Online:
September 2008
ISBN:
9780199230693
eISBN:
9780191710889
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199230693.003.0014
Subject:
Biology, Ecology, Animal Biology

Parasites are thought to select for host traits, such as elaborate ornaments and intricate immune systems. Dragonflies have proven useful hosts for studying parasite-mediated selection. This chapter ... More


The Evolution of Agonism: The Triumph of Restraint in Nonhuman and Human Primates

Douglas P. Fry and Anna Szala

in War, Peace, and Human Nature: The Convergence of Evolutionary and Cultural Views

Published in print:
2013
Published Online:
May 2013
ISBN:
9780199858996
eISBN:
9780199332687
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199858996.003.0023
Subject:
Psychology, Evolutionary Psychology

This chapter adopts an evolutionary perspective, placing human aggression in a phylogenetic context by considering the patterns of agonism not only in humans (focusing primarily on nomadic band ... More


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