BIO220H1 Lecture 11: Lecture 11Summary .docx

• School: UTSG
• Department: Biology
• Course: BIO220H1
• Professor: John Stinchcombe

Document Summary

Condition dependent: if a male is very healthy, as a reflection of good genes, it will produce large ornaments. Evidence: raise males in good nutritional conditions, expect to have good traits, if poor nutrition may not express them so much. If sexually selected traits are more condition dependent, both degree and quality of sexual dimorphism will be condition dependent. Condition dependent: organism"s internal physiological factors interact with environmental to alter development of morphology and behavioural. The phenotype of constant genotypes are responding plastically to the environment. Argument: sexually dimorphic traits are more condition dependent than any other traits. They have dorsal black colouration in both females and males, and they also have lateral black coloration which is only males (this is the dimorphic trait) Before going to , he looked really shady: the extra black color heats up quickly in the morning and gives it a competitive advantage to go out and mate females.