Nests and Nesting Flashcards
1
Q
Nest purpose
A
Protection from predators and extreme weather
2
Q
Architecture
A
- open vs closed nests
- complex/simple construction
- timing of nest establishment
3
Q
What is nest parasitism
A
Birds that rely on others to incubate and raise their young
4
Q
Oblique brood parasites. Benefits?
A
- Do not construct their own nests
- rely on other species for parental care
Benefits:
- Reduced costs and risk of nesting
- Ability to lay more eggs (higher survival rate)
5
Q
Facultative brood parasites
A
- do not rely on brood parasitism
- raise and incubate own clutch
- deposits eggs in nest of other when necessary
6
Q
Clutch size short term constraints
A
- energy available for egg production
- environmental conditions
- foraging ability
- nest initiation dates
7
Q
Clutch size long term considerations
A
- Lifetime reproductive success
- predation risks
- lifespan
8
Q
Clutch:
Determinate & indeterminate layers
A
Determinate - Species that lay a fixed # of eggs
Indeterminate - species that lay extra eggs should some be removed
9
Q
Reproductive behaviors : defense
A
Attack-direct assault of a predator
Distraction displays - injury/flight (faking broken wing)
“Rodent run” - (run in low crouch)
