This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: strong sexual selection on males. • Strong sexual selection leads to exaggerated traits in males that facilitate female ability to assess genetic quality. • As a result, most lek species are highly sexually dimorphic in size and ornamentation. 4. Examples of lekking species: • Birds of Paradise • Neotropical Manakins • Hammer-headed Bat • Sage Grouse 5. Leks and theories of intersexual selection 1. Are females unanimous about preferred males? 2. Which traits do females use and are these exaggerated ones? 3. Are favored traits indicators of genetic quality? 4. Why doesn’t genetic variation get used up? BioNB 221: Lecture 11 Sept. 22, 2008 Page 2...
View Full Document
- Fall '08
- Sexual Selection, Sexual dimorphism, males Female preferences