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IguanasBiology and Conservation$
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Allison Alberts

Print publication date: 2004

Print ISBN-13: 9780520238541

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520238541.001.0001

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Sexually Dimorphic Antipredator Behavior in Juvenile Green Iguanas

Sexually Dimorphic Antipredator Behavior in Juvenile Green Iguanas

Kin Selection In The Form Of Fraternal Care?

Chapter:
(p.119) 9 Sexually Dimorphic Antipredator Behavior in Juvenile Green Iguanas
Source:
Iguanas
Author(s):

Jesús A. Rivas

Luis E. Levín

Publisher:
University of California Press
DOI:10.1525/california/9780520238541.003.0011

This chapter examines sexually dimorphic antipredator behavior in juvenile green iguanas. It suggests that male iguanas react more actively when presented with a model predator and may be more risk-prone than female iguanas who respond less effectively. Males move ahead of the model and sometimes appear from under the refuge. These responses suggest that males could surprise a natural predator, giving them more time to escape. They may also serve to divert the attention of a predator, allowing their siblings the opportunity to escape. Sometimes, male iguanas use their own bodies to shelter female siblings from predators.

Keywords:   sexually dimorphic, antipredator behavior, green iguanas, male iguanas, female iguanas, predators

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