100+ Acorn woodpeckers PowerPoint (PPT) Presentations, Acorn woodpeckers PPTs

Acorn woodpeckers - PowerPoint PPT Presentation

Units of Selection

Units of Selection. We think that the only way that adaptations can arise is through natural selection. The effects of such adaptation can be seen at many levels: gene frequencies, frequencies of types of organisms, even populations.

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873 views • 29 slides

Infanticide and Brood Reduction in Birds

Infanticide and Brood Reduction in Birds. By: Michael Sweeney Ecol 484 2008. Infanticide?. In Birds : Intentionally causing the death of an egg or nestling. Infanticide very common in birds. Unlike mammals, birds employ behavior to their advantage .

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798 views • 18 slides

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Acorn woodpeckers - PowerPoint PPT Presentation

Units of Selection

Infanticide and Brood Reduction in Birds