Agriculture & Biology
migratory birds
100%
birds
74%
hemoparasites
72%
Meropidae
67%
breeding sites
62%
Merops
62%
flight
44%
breeding
42%
phenology
42%
infection
36%
Passeriformes
31%
Acrocephalus arundinaceus
30%
vegetation
29%
molting
27%
Coracias garrulus
26%
Passer domesticus
25%
normalized difference vegetation index
21%
exercise
21%
gender
20%
Riparia riparia
18%
migratory connectivity
18%
habitats
17%
autumn
16%
morphometry
15%
migratory species
15%
host-parasite relationships
15%
parasites
15%
stopover sites
15%
biometry
15%
Portugal
14%
Balkans
13%
migratory behavior
13%
meta-analysis
13%
parasitemia
12%
Arctic region
12%
Haemoproteus
11%
Germany
11%
grasslands
11%
Plasmodium
11%
arthropods
10%
Charadriidae
10%
environmental factors
10%
Lake Chad
9%
tail
9%
Luscinia
9%
longitude
9%
resting metabolic rate
9%
food availability
8%
risk estimate
8%
Western Africa
8%
Earth & Environmental Sciences
bird
72%
breeding site
67%
hemoparasite
62%
phenology
52%
passerine
50%
migratory bird
33%
breeding
32%
infection
32%
songbird
31%
bee
28%
stopover
26%
flight
25%
molt
24%
breeding population
22%
migratory species
21%
migration route
20%
parasite prevalence
19%
vegetation
18%
carry-over effect
18%
flight behavior
18%
sex determination
17%
biometry
16%
habitat availability
15%
habitat
14%
activity pattern
14%
reed
13%
arthropod
12%
meta-analysis
12%
NDVI
11%
phylogeny
11%
annual cycle
11%
grassland
11%
corridor
11%
environmental conditions
10%
Africa
10%
connectivity
9%
Europe
9%
fitness
9%
tagging
8%
food availability
7%
sensor
7%
bird species
7%
winter
6%
biomass
6%
body size
6%
effect
6%
individual variation
6%
autumn
6%
longitude
6%
protandry
5%
