lecture20-slides - Hormones and Behavior 2: Activation...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Hormones and Behavior 2: Activation & Organization Mike Webster msw244@cornell.edu S.G. Mudd Hall W361 Tuesdays, 2-4 Slides & Handout to be posted… Honey Bee Behavior Social Environment (e.g., ethyl oleate from foragers) Juvenile Hormone Age Gene activity in brain Behavior Pituitary: LH Gonads: T T acts on brain Hypothalmus-pituitary-gonadal (HPG) axis increased daylength
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Testosterone & Aggression Can raise T in lab by altering light cycle BUT… T doesn’t stay high T levels in lab are lower than in wild Social stimuli? Testosterone & Aggression no effect elevated T experimental testosterone aggression Testosterone & Aggression The Challenge Hypothesis
Background image of page 2
T only loosely associated with breeding and aggression Testosterone & Aggression Testosterone & Aggression Junco Testosterone implants: T implanted males increased territory size, sing more and also obtain more copulations T implanted males also fed their offspring less. 20
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

lecture20-slides - Hormones and Behavior 2: Activation...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online