Earth & Environmental Sciences
density dependence
100%
bird
66%
productivity
44%
breeding season
40%
nest
35%
breeding
31%
rate
26%
population regulation
23%
nest site
22%
raptor
21%
interspecific competition
20%
emigration
20%
habitat
19%
resource availability
18%
immigration
18%
DDT
17%
snowmelt
16%
management plan
15%
river
15%
egg
15%
wildlife
13%
snow
12%
petroleum
12%
topography
11%
regulation
11%
disturbance
11%
weather
10%
winter
9%
trend
7%
temperature
5%
effect
3%
Agriculture & Biology
Arctic region
83%
cliffs
72%
climate
63%
birds
48%
Falco peregrinus tundrius
46%
breeding season
19%
survival rate
18%
nests
18%
rivers
17%
snowmelt
16%
intrinsic factors
14%
breeding
13%
habitats
13%
birds of prey
13%
snow
12%
interspecific competition
12%
immigration
12%
nesting sites
12%
topography
12%
wildlife
11%
petroleum
11%
species recruitment
10%
weather
9%
oviposition
9%
climate change
9%
death
8%
winter
7%
temperature
4%