Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 51, Problem 12TYU

SYNTHESIZE YOUR KNOWLEDGE

Chapter 51, Problem 12TYU, SYNTHESIZE YOUR KNOWLEDGE Acorn woodpeckers (Melanerpes formicivorus) slash acorns in storage holes

Acorn woodpeckers (Melanerpes formicivorus) slash acorns in storage holes they drill in trees. When these woodpeckers breed the offspring from previous years often help with parental duties. Activities of these nonbreeding helpers include intubating eggs and defending stashed acorns. Propose some questions about the proximate and ultimate causation of these behaviors that a behavioral biologist could ask.

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