BIO 416 Evolution. Lecture #21 Kin Selection & Altruism March 6, 2009. Dr. Karen Schmeichel Oglethorpe University. Business:. Essay #2 Adaptation (due) Lit Review #3 Due 3/9 Airtran trip update Exam II 3/13 – Lab exercise too Ch 12: 447-478 Kin Selection. Objectives:.
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March 6, 2009
Dr. Karen Schmeichel Oglethorpe University
Darwin) and indirect fitness
A Simple Assumption
Gray Tree Frog Serenade
What’s the Attraction?
What do these advertisements tell the “choosy” mate?
When the Females
Experience Sexual Selection:
(i.e.,females are competitive)
Altruism: the fly in Darwin’s ointment?
The probability that
Computing “r” with pedigrees
The “Got from”/ “Give to” Approach
Hamilton’s rule: an allele for
altruistic behavior will spread if:
more likely if benefits to recipient
are great and the cost to the
actor is low and the participants
are closely related
Natural selection favoring the
spread of alleles that increase
the indirect fitness