Hormonal Control of Animal Behavior: Part 3

Question 1

mating behavior in C.Inornatus

Answer 1

C. Inornatus – male investigates female to see if she will be receptive, male then grips the back of her neck and wraps tail around the body to attempt cloacal contact( with fucking HEMIPENIS HAHA); takes 10-15 minutes

Question 2

Hormonal control of mating behavior in Cnemidophorus uniparens

Answer 2

one female on top of another, shows same sexual behaviors as other lizard species but engaging in pseudosexual behavior; however it correlates with larger clutch of eggs produced for C. uniparens

Exist as only one sex but similar behavior in sexual reproduction to others
UNISEXUAL

Question 3

Unisexual reptile

Answer 3

only produces male or female gametes
* 2/3 sexually reproducing, but 1/3 unisexual
* Traits since in various species

Question 4

Experimentally how could you demonstrate that steroid hormones are important for animal behavior? Peptide and protein hormones?

Answer 4

Site specific brain lesions by a stereotaxic apparatus moves certain ways to kill certain cells

The probe is a top of electrode/chemicals wanted, can do this for parts of brain involved in hormone production and regulation

Question 5

What hormone is responsible for male-like behavior in C.uniparens? Female-like behavior?

Answer 5

Male-like behavior: increased levels of progesterone

Female-like behavior: increased levels of estradiol

Question 6

What distinguishes associated and dissociated patterns of mating?

Answer 6

Dissociated patterns of mating occur when hormones are at their lowest
Example: Red Sided Garter Snake – make mating ball of males fighting over female

Associated patterns of mating occur when hormones are at their peaks