Environmental Endocrinology Flashcards
1
Q
Adrenal axis mechanism
A
Hypothalamus - corticotropin releasing factor - pituitary - adreno-corticotrophic hormone - adrenal axis - glucocorticoids
2
Q
Stress response in northern high breeding populations
A
Pied flycatcher reduced stress than southern populations
3
Q
Knot migration
A
- stopover sites - pre migratory body mass increase muscle and fat - pectoral mass changes in proportion to body mass to maintain optimal flight performance
4
Q
Endocrine basis of migratory fat deposition and examples
A
Corticosterone correlates with migratory fat deposition - yellow rumped warbler ,
Strong correlation with mass and also for red knots
Corticosterone implant in white crowned sparrows stimulates fat deposition - corticosterone receptor antagonist blocks effect
5
Q
Stress response to env conditions
A
Gambelii white crowned sparrow - adrenocortical response to allow breeding in adverse conditions
