WFS 431 Exam 2 (UTK Dr. Muller) – Study Guide, Practice Questions & Revision
Notes
According to the TurkeyReproDeclining paper, How did lipid reserves affect reproduction? - ANS
✔✔higher lipid reserves increased chances of nesting success
-larger clutch size
-hens on better condition
What is relationship to lipid reserves and predation? - ANS ✔✔-increased lipid reserves increase
nest size
-this increases chances of survival
What is the interaction between clutch size and date incubation was initiated as far as nesting
success? - ANS ✔✔the later the incubation date, the lower chances of success
According to the BearReproductionBodyCondition paper, Why did cubs nursing from fat
mothers grow faster than those nursing from lean mothers? - ANS ✔✔-the fat mothers were
able to provide more and higher quality milk
-fat bears can give birth earlier so they lactate longer
How are delayed implantation and nutrition related? - ANS ✔✔-if the mother does not have
enough fat storage to survive the winter, she will not have the cubs
-she could also wait till she's fat enough to get pregnant
What was the percentage of body fat below which they would not implant? - ANS ✔✔20%
Why not just breed in December rather than breed in the summer and delay implantation?
, last bear paper question - ANS ✔✔-if the bear does not have enough fat stored, it could die or
the cubs could die
-delayed implantation allows the bear to wait and see if it has enough fat to have cubs
What is meant by adaptive fetal sex ratios? - ANS ✔✔-if a doe can only have 1 offspring, it is
better to have a female cause it will mate no matter what
- if you can have more than one, you'll have a male cause it can mate more than one time in a
season
What is the number and gender of offspring as maternal conditions improve in deer? - ANS
✔✔-first will be female
-second will be male
What is the "Rose Petal Hypothesis" - ANS ✔✔-if a female controls an area, they should have
more females cause the females will stay in that area
-if you don't control a large area, if might be better to have a male cause they will leave the area
of the mother
Why do mourning doves only lay 2 eggs? Which parent feeds the young the longest? And why? -
ANS ✔✔1. they can only make enough crop milk for 2 chicks
2. the male
3. the female needs to recycle
Know general regulation of thyroid hormones. - ANS ✔✔-melatonin(from pineal) can inhibit
thyroid gland
-low food can inhibit thyroid
What are the hormones from the hypothalamus - pituitary- thyroid gland. - ANS ✔✔-
hypothalamus - thyrotropin releasing hormone
Notes
According to the TurkeyReproDeclining paper, How did lipid reserves affect reproduction? - ANS
✔✔higher lipid reserves increased chances of nesting success
-larger clutch size
-hens on better condition
What is relationship to lipid reserves and predation? - ANS ✔✔-increased lipid reserves increase
nest size
-this increases chances of survival
What is the interaction between clutch size and date incubation was initiated as far as nesting
success? - ANS ✔✔the later the incubation date, the lower chances of success
According to the BearReproductionBodyCondition paper, Why did cubs nursing from fat
mothers grow faster than those nursing from lean mothers? - ANS ✔✔-the fat mothers were
able to provide more and higher quality milk
-fat bears can give birth earlier so they lactate longer
How are delayed implantation and nutrition related? - ANS ✔✔-if the mother does not have
enough fat storage to survive the winter, she will not have the cubs
-she could also wait till she's fat enough to get pregnant
What was the percentage of body fat below which they would not implant? - ANS ✔✔20%
Why not just breed in December rather than breed in the summer and delay implantation?
, last bear paper question - ANS ✔✔-if the bear does not have enough fat stored, it could die or
the cubs could die
-delayed implantation allows the bear to wait and see if it has enough fat to have cubs
What is meant by adaptive fetal sex ratios? - ANS ✔✔-if a doe can only have 1 offspring, it is
better to have a female cause it will mate no matter what
- if you can have more than one, you'll have a male cause it can mate more than one time in a
season
What is the number and gender of offspring as maternal conditions improve in deer? - ANS
✔✔-first will be female
-second will be male
What is the "Rose Petal Hypothesis" - ANS ✔✔-if a female controls an area, they should have
more females cause the females will stay in that area
-if you don't control a large area, if might be better to have a male cause they will leave the area
of the mother
Why do mourning doves only lay 2 eggs? Which parent feeds the young the longest? And why? -
ANS ✔✔1. they can only make enough crop milk for 2 chicks
2. the male
3. the female needs to recycle
Know general regulation of thyroid hormones. - ANS ✔✔-melatonin(from pineal) can inhibit
thyroid gland
-low food can inhibit thyroid
What are the hormones from the hypothalamus - pituitary- thyroid gland. - ANS ✔✔-
hypothalamus - thyrotropin releasing hormone
