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Pieter Johnson

Concepts (273)

Concepts are derived automatically from a person's publications.

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Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.

Name Number of Publications Most Recent Publication Publications by All Authors Concept Score Why?
Trematoda
57
2025
75
21.650
 Why?
Host-Parasite Interactions
55
2025
114
15.370
 Why?
Trematode Infections
33
2025
47
11.490
 Why?
Amphibians
37
2025
57
11.170
 Why?
Anura
24
2024
46
7.890
 Why?
Parasites
18
2024
50
6.640
 Why?
Biodiversity
25
2025
409
6.290
 Why?
Ecosystem
32
2021
596
4.320
 Why?
Snails
17
2019
37
3.720
 Why?
Predatory Behavior
13
2024
50
2.770
 Why?
Salamandridae
7
2023
33
2.680
 Why?
Models, Biological
21
2025
1783
2.630
 Why?
Larva
24
2024
226
2.580
 Why?
Ponds
9
2020
17
2.430
 Why?
Fish Diseases
5
2024
16
2.420
 Why?
Animals
113
2025
36940
2.380
 Why?
Communicable Diseases
7
2020
159
1.610
 Why?
Echinostomatidae
3
2023
5
1.570
 Why?
California
15
2020
431
1.500
 Why?
Odonata
4
2021
5
1.450
 Why?
Wetlands
8
2017
33
1.420
 Why?
Parasitic Diseases, Animal
3
2017
6
1.390
 Why?
Chytridiomycota
10
2020
28
1.380
 Why?
Echinostoma
3
2018
3
1.370
 Why?
Food Chain
6
2024
41
1.370
 Why?
Mycoses
8
2025
79
1.330
 Why?
Toxoplasmosis
2
2020
40
1.250
 Why?
Animal Distribution
3
2020
24
1.210
 Why?
Ecology
7
2021
118
1.190
 Why?
Ambystoma
2
2025
16
1.190
 Why?
Fishes
7
2024
105
1.160
 Why?
Population Dynamics
13
2018
151
1.160
 Why?
Ranidae
6
2022
14
1.130
 Why?
Life History Traits
2
2025
15
1.120
 Why?
Tetrodotoxin
2
2018
39
1.120
 Why?
Fresh Water
8
2019
57
1.100
 Why?
Parasitic Diseases
2
2018
8
1.080
 Why?
Communicable Diseases, Emerging
3
2020
36
1.070
 Why?
Ranavirus
5
2022
6
1.070
 Why?
Population Density
12
2018
95
1.040
 Why?
Conservation of Natural Resources
6
2018
122
1.040
 Why?
Life Cycle Stages
9
2021
41
1.030
 Why?
Host Specificity
4
2022
29
0.970
 Why?
Coral Reefs
1
2024
10
0.920
 Why?
Phylogeny
6
2024
904
0.880
 Why?
Astacoidea
4
2012
6
0.860
 Why?
Environment
4
2015
358
0.840
 Why?
Toxoplasma
2
2020
42
0.820
 Why?
Introduced Species
3
2012
39
0.810
 Why?
Helminthiasis, Animal
2
2015
3
0.790
 Why?
Perciformes
2
2015
19
0.740
 Why?
Linear Models
3
2020
849
0.730
 Why?
Insecta
3
2017
67
0.710
 Why?
Leeches
1
2020
3
0.690
 Why?
Parasitology
2
2020
9
0.680
 Why?
Animal Diseases
3
2018
6
0.680
 Why?
Adaptation, Biological
1
2020
56
0.680
 Why?
Behavior
1
2020
90
0.660
 Why?
Seasons
6
2020
547
0.660
 Why?
Biota
3
2019
34
0.650
 Why?
Corticosterone
2
2018
236
0.650
 Why?
Host-Pathogen Interactions
6
2025
364
0.650
 Why?
Daphnia
3
2009
4
0.640
 Why?
Virulence
3
2023
267
0.640
 Why?
Nematoda
1
2019
9
0.630
 Why?
DNA Virus Infections
1
2018
3
0.610
 Why?
Echinostomiasis
1
2018
1
0.610
 Why?
Ehrlichiosis
1
2018
2
0.600
 Why?
Symbiosis
2
2016
79
0.600
 Why?
Entrepreneurship
1
2018
6
0.590
 Why?
Pesticides
2
2017
62
0.580
 Why?
Cercaria
4
2021
5
0.580
 Why?
Climate Change
10
2018
183
0.560
 Why?
Lyme Disease
1
2018
60
0.560
 Why?
Animals, Wild
6
2024
59
0.560
 Why?
Temperature
4
2018
679
0.550
 Why?
Bird Diseases
2
2015
12
0.540
 Why?
Congenital Abnormalities
3
2011
92
0.530
 Why?
Body Size
2
2015
108
0.520
 Why?
Ducks
1
2015
5
0.500
 Why?
Raptors
1
2015
3
0.500
 Why?
Charadriiformes
1
2015
5
0.490
 Why?
Cyprinodontiformes
2
2012
5
0.490
 Why?
Environmental Pollutants
1
2017
159
0.480
 Why?
Species Specificity
5
2020
585
0.460
 Why?
Communicable Disease Control
1
2015
82
0.460
 Why?
Caribbean Region
2
2024
28
0.450
 Why?
North America
5
2024
313
0.440
 Why?
Bayes Theorem
3
2020
405
0.430
 Why?
Biomass
2
2016
118
0.420
 Why?
Circadian Rhythm
1
2017
468
0.420
 Why?
Rana pipiens
2
2011
17
0.410
 Why?
Anti-Infective Agents
1
2016
255
0.400
 Why?
Phenotype
2
2020
3196
0.400
 Why?
Biomphalaria
2
2011
3
0.400
 Why?
Metacercariae
2
2023
4
0.360
 Why?
Rana catesbeiana
1
2011
12
0.360
 Why?
Hot Temperature
1
2014
391
0.350
 Why?
Metamorphosis, Biological
6
2012
22
0.350
 Why?
Computer Simulation
1
2015
978
0.340
 Why?
Behavior, Animal
1
2014
501
0.340
 Why?
Phosphorus
2
2010
97
0.330
 Why?
Binomial Distribution
2
2020
7
0.330
 Why?
Body Temperature Regulation
1
2011
97
0.330
 Why?
Peptides
1
2016
985
0.330
 Why?
Prevalence
4
2024
2734
0.320
 Why?
Nitrogen
2
2010
168
0.310
 Why?
Schistosomiasis mansoni
1
2009
23
0.310
 Why?
Schistosoma mansoni
1
2009
37
0.300
 Why?
Birds
3
2020
93
0.300
 Why?
Climate
2
2020
94
0.300
 Why?
Disease Susceptibility
1
2010
347
0.280
 Why?
Limb Deformities, Congenital
2
2005
14
0.270
 Why?
Lakes
2
2020
26
0.260
 Why?
Perches
1
2006
2
0.260
 Why?
DNA, Helminth
3
2024
20
0.260
 Why?
Helminths
2
2016
9
0.260
 Why?
Random Allocation
3
2015
353
0.250
 Why?
Gastropoda
2
2020
5
0.250
 Why?
Parasite Load
2
2018
10
0.240
 Why?
Demography
1
2025
291
0.230
 Why?
RNA, Ribosomal, 28S
1
2024
6
0.220
 Why?
DNA, Ribosomal
1
2024
88
0.220
 Why?
Plants
2
2016
215
0.210
 Why?
Endangered Species
3
2016
18
0.210
 Why?
Colorado
5
2025
4565
0.200
 Why?
Survival Analysis
3
2012
1325
0.200
 Why?
Wisconsin
3
2011
101
0.200
 Why?
Genetic Variation
2
2020
991
0.200
 Why?
Electron Transport Complex IV
2
2020
60
0.190
 Why?
Genomics
2
2025
795
0.190
 Why?
Likelihood Functions
2
2020
144
0.180
 Why?
Coinfection
2
2013
137
0.180
 Why?
Disease Resistance
2
2019
34
0.180
 Why?
Snakes
1
2020
21
0.180
 Why?
Phytoplankton
1
2020
5
0.170
 Why?
Poisson Distribution
1
2020
75
0.170
 Why?
Disease Reservoirs
1
2020
21
0.170
 Why?
Phylogeography
1
2020
54
0.170
 Why?
Gene Flow
1
2020
86
0.160
 Why?
Forelimb
2
2011
29
0.150
 Why?
Time Factors
4
2015
6828
0.150
 Why?
Geography
3
2018
200
0.150
 Why?
DNA, Mitochondrial
1
2020
200
0.150
 Why?
Arachnid Vectors
1
2018
4
0.150
 Why?
Georgia
1
2018
86
0.150
 Why?
Ticks
1
2018
25
0.150
 Why?
Hindlimb
2
2011
128
0.150
 Why?
Deer
1
2018
32
0.150
 Why?
Antibodies, Protozoan
1
2018
36
0.150
 Why?
Biological Evolution
2
2020
474
0.150
 Why?
Analysis of Variance
2
2011
1316
0.140
 Why?
Forests
1
2018
62
0.140
 Why?
Public Health Practice
1
2018
70
0.140
 Why?
Seroepidemiologic Studies
1
2018
165
0.140
 Why?
Humans
15
2021
137585
0.140
 Why?
Nonlinear Dynamics
1
2018
88
0.130
 Why?
Spatial Analysis
1
2016
20
0.130
 Why?
Rana clamitans
1
2016
1
0.130
 Why?
Nitrogen Cycle
1
2016
11
0.130
 Why?
Bays
1
2015
7
0.120
 Why?
Feces
1
2019
484
0.120
 Why?
Extremities
2
2010
131
0.120
 Why?
Male
6
2018
67762
0.120
 Why?
Lethal Dose 50
1
2015
15
0.120
 Why?
Meta-Analysis as Topic
1
2016
186
0.120
 Why?
Fungi
1
2016
144
0.120
 Why?
Health Status Disparities
1
2018
289
0.120
 Why?
Dimethyl Sulfoxide
1
2015
41
0.120
 Why?
Solvents
1
2015
109
0.110
 Why?
Poverty
1
2018
521
0.110
 Why?
Single-Blind Method
1
2015
282
0.110
 Why?
Aminobenzoates
1
2014
7
0.110
 Why?
Acclimatization
1
2016
177
0.110
 Why?
Genetics, Population
1
2015
214
0.110
 Why?
Immunoglobulin G
1
2018
893
0.110
 Why?
Risk Assessment
2
2016
3457
0.100
 Why?
Cattle
1
2016
984
0.100
 Why?
Female
5
2018
73304
0.100
 Why?
Fluorescent Dyes
1
2015
321
0.100
 Why?
Extinction, Biological
4
2016
36
0.100
 Why?
Immunity
1
2013
143
0.100
 Why?
Algorithms
2
2018
1704
0.100
 Why?
Research
1
2015
451
0.090
 Why?
Light
1
2015
381
0.090
 Why?
Genetic Fitness
1
2012
59
0.090
 Why?
Incidence
1
2018
2804
0.090
 Why?
Competitive Behavior
1
2011
43
0.090
 Why?
Achlya
1
2011
1
0.090
 Why?
Trees
1
2011
71
0.090
 Why?
Urban Renewal
1
2011
5
0.090
 Why?
Metagenome
1
2012
147
0.090
 Why?
Reproduction
1
2013
204
0.090
 Why?
Escape Reaction
1
2011
62
0.090
 Why?
Risk Factors
4
2018
10388
0.090
 Why?
Immune Tolerance
1
2013
363
0.090
 Why?
Saprolegnia
1
2010
1
0.090
 Why?
Agriculture
1
2011
103
0.090
 Why?
Oregon
1
2010
74
0.090
 Why?
Population
1
2010
35
0.080
 Why?
Zooplankton
2
2008
3
0.080
 Why?
Smegmamorpha
1
2010
6
0.080
 Why?
Fertilizers
1
2010
25
0.080
 Why?
Microbiota
1
2018
762
0.080
 Why?
Bufonidae
1
2010
9
0.080
 Why?
Zoonoses
1
2010
33
0.080
 Why?
Environmental Monitoring
1
2012
370
0.080
 Why?
Models, Statistical
1
2013
669
0.080
 Why?
Lymnaea
1
2009
1
0.080
 Why?
Forecasting
1
2011
389
0.080
 Why?
Feeding Behavior
1
2015
654
0.080
 Why?
Chlorophyll
1
2008
14
0.080
 Why?
Cadmium
1
2009
69
0.080
 Why?
Brain
1
2020
2668
0.070
 Why?
Disease Vectors
1
2008
16
0.070
 Why?
Eukaryota
1
2008
57
0.070
 Why?
Animal Feed
1
2007
53
0.070
 Why?
Body Weight
1
2012
985
0.070
 Why?
Risk
1
2010
912
0.070
 Why?
Cannibalism
1
2006
3
0.070
 Why?
Color
1
2006
76
0.060
 Why?
Motor Activity
1
2011
718
0.060
 Why?
Regression Analysis
1
2009
1024
0.060
 Why?
Logistic Models
1
2011
2074
0.060
 Why?
Databases, Factual
1
2011
1357
0.060
 Why?
Culture Media
1
2005
165
0.060
 Why?
Water
1
2007
460
0.050
 Why?
Hydrogen-Ion Concentration
1
2005
560
0.050
 Why?
Microscopy
1
2005
152
0.050
 Why?
Water Pollutants
1
2003
20
0.050
 Why?
United States
2
2018
14841
0.050
 Why?
Rats
1
2011
5647
0.050
 Why?
Fatty Acids
2
2019
443
0.050
 Why?
Brazil
1
2021
167
0.040
 Why?
Vertebrates
1
2021
60
0.040
 Why?
Fatty Acids, Essential
1
2019
3
0.040
 Why?
Ultraviolet Rays
1
2003
396
0.040
 Why?
Adaptation, Physiological
1
2024
553
0.040
 Why?
Sequence Analysis, DNA
1
2020
812
0.030
 Why?
Middle Aged
1
2018
33479
0.030
 Why?
Adult
1
2018
37929
0.030
 Why?
Europe
1
2016
414
0.030
 Why?
Lipids
1
2019
672
0.030
 Why?
Models, Theoretical
1
2018
578
0.030
 Why?
Sporangia
1
2012
2
0.030
 Why?
Gastrointestinal Contents
1
2012
8
0.030
 Why?
Gills
1
2012
4
0.030
 Why?
Louisiana
1
2012
29
0.030
 Why?
Health
1
2013
84
0.030
 Why?
Mutation
1
2003
3958
0.020
 Why?
New Hampshire
1
2011
4
0.020
 Why?
Mink
1
2011
12
0.020
 Why?
Metabolism
1
2011
42
0.020
 Why?
Rivers
1
2011
64
0.020
 Why?
Integumentary System
1
2010
2
0.020
 Why?
Genetic Markers
1
2011
344
0.020
 Why?
Virus Diseases
1
2012
212
0.020
 Why?
Canada
1
2011
418
0.020
 Why?
Proportional Hazards Models
1
2012
1266
0.020
 Why?
Comprehension
1
2011
172
0.020
 Why?
Stress, Physiological
1
2012
443
0.020
 Why?
Nutritive Value
1
2008
37
0.020
 Why?
Isotope Labeling
1
2008
81
0.020
 Why?
Food Preferences
1
2008
119
0.020
 Why?
Disease Outbreaks
1
2010
395
0.020
 Why?
Molecular Sequence Data
1
2011
2900
0.020
 Why?
West Indies
1
2005
6
0.020
 Why?
DNA, Ribosomal Spacer
1
2005
7
0.020
 Why?
Kenya
1
2005
118
0.010
 Why?
Sequence Alignment
1
2005
343
0.010
 Why?
Prognosis
1
2013
4030
0.010
 Why?
Wounds and Injuries
1
2010
758
0.010
 Why?
Polymerase Chain Reaction
1
2005
1062
0.010
 Why?
Johnson's Networks
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