Chapter

Sexually Dimorphic Antipredator Behavior in Juvenile Green Iguanas

Jesús A. Rivas and Luis E. Levín

in Iguanas

Published by University of California Press

Published in print March 2004 | ISBN: 9780520238541
Published online March 2012 | e-ISBN: 9780520930117 | DOI: http://dx.doi.org/10.1525/california/9780520238541.003.0011
Sexually Dimorphic Antipredator Behavior in Juvenile Green Iguanas

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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

Chapter.  4618 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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