Earth & Environmental Sciences
bird
98%
nestling
83%
passerine
57%
infection
54%
hemoparasite
39%
body mass
33%
parasite
33%
defense
33%
immune response
33%
nest
29%
stopover
29%
annual cycle
29%
ecology
20%
lysis
18%
predator
17%
trade-off
17%
immune system
17%
aridity
17%
radiotelemetry
16%
index
16%
host specificity
15%
antioxidant
15%
exposure
15%
breeding
15%
breeding season
14%
ectoparasite
14%
winter
13%
freeze-thaw cycle
12%
coexistence
12%
flagellate
12%
lipid
12%
diet
11%
facilitation
11%
egg rejection
11%
antigen
11%
natural area
11%
polymerase chain reaction
11%
egg
11%
rate
11%
blood
10%
phenology
10%
energy conservation
10%
loss
10%
lesion
10%
reproductive effort
10%
predation
10%
swelling
9%
wader
8%
parameter
8%
microscopy
8%
Agriculture & Biology
birds
100%
nestlings
62%
haptoglobins
52%
Netherlands
47%
ecology
38%
hemoparasites
29%
autumn
25%
infection
25%
immunoglobulins
23%
parasites
23%
winter
23%
life history
20%
immune system
20%
telomeres
19%
Columba oenas
18%
Turdus merula
18%
innate immunity
17%
nests
17%
radio telemetry
17%
breeding
16%
dry environmental conditions
16%
Oenanthe oenanthe
16%
hemolysis
16%
animals
15%
breeding season
15%
trichomoniasis
15%
Cuculus canorus
15%
predators
15%
Falco tinnunculus
15%
stopover sites
14%
Lake Baikal
14%
cerebrosides
14%
ecologists
13%
Cuculidae
13%
Carassius
13%
duration
13%
energy
13%
agglutination
13%
energy conservation
13%
diet
12%
sex determination analysis
12%
Parus major
12%
Plasmodium
12%
freeze-thaw cycles
12%
gender
12%
water birds
12%
bacterial infections
12%
Siberia
12%
antigens
11%
Haemoproteus
11%
Medicine & Life Sciences
Birds
72%
Haptoglobins
48%
Innate Immunity
29%
Immune System
26%
Breeding
17%
Raptors
15%
Acute-Phase Reaction
14%
Cerebrosides
13%
Crows
13%
Animals
13%
Influenza in Birds
12%
Ecology
12%
Resource Allocation
12%
Hemagglutination
11%
Budgets
11%
Agglutination
11%
Telomere
11%
Growth
10%
Hemolysis
10%
Humoral Immunity
10%
Orthomyxoviridae
10%
Endotoxins
10%
Feathers
10%
Lipopolysaccharides
9%
Cornea
9%
Svalbard
9%
Color
8%
Life History Traits
7%
Hot Temperature
7%
Body Mass Index
7%
Temperature
7%
Light
7%
Water
6%
Oenanthe
6%
Lipids
6%
Body Temperature Regulation
6%
Reproduction
6%
Antigens
6%
Darkness
6%
Physiological Phenomena
6%
Infectious Disease Transmission
6%
Skin
5%
Islands
5%
Anorexia
5%
Acute-Phase Proteins
5%
Antibodies
5%
Survival Rate
5%