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Pieter Johnson

Concepts (272)

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
56
2025
58
21.700
 Why?
Host-Parasite Interactions
54
2025
103
14.850
 Why?
Trematode Infections
32
2025
34
10.950
 Why?
Amphibians
36
2025
52
10.500
 Why?
Anura
24
2024
38
8.080
 Why?
Parasites
18
2024
44
6.780
 Why?
Biodiversity
24
2024
377
5.750
 Why?
Ecosystem
32
2021
556
4.480
 Why?
Snails
17
2019
34
3.790
 Why?
Predatory Behavior
13
2024
43
2.850
 Why?
Salamandridae
7
2023
26
2.740
 Why?
Larva
24
2024
214
2.630
 Why?
Models, Biological
20
2024
1722
2.560
 Why?
Fish Diseases
5
2024
10
2.480
 Why?
Ponds
9
2020
13
2.480
 Why?
Animals
112
2025
35307
2.430
 Why?
Communicable Diseases
7
2020
147
1.660
 Why?
Echinostomatidae
3
2023
3
1.600
 Why?
California
15
2020
400
1.540
 Why?
Odonata
4
2021
5
1.480
 Why?
Wetlands
8
2017
32
1.440
 Why?
Parasitic Diseases, Animal
3
2017
5
1.410
 Why?
Food Chain
6
2024
36
1.400
 Why?
Chytridiomycota
10
2020
26
1.400
 Why?
Echinostoma
3
2018
3
1.400
 Why?
Mycoses
8
2025
71
1.370
 Why?
Toxoplasmosis
2
2020
36
1.280
 Why?
Animal Distribution
3
2020
21
1.240
 Why?
Ambystoma
2
2025
15
1.220
 Why?
Ecology
7
2021
108
1.220
 Why?
Fishes
7
2024
94
1.190
 Why?
Population Dynamics
13
2018
138
1.190
 Why?
Ranidae
6
2022
13
1.150
 Why?
Tetrodotoxin
2
2018
39
1.140
 Why?
Fresh Water
8
2019
51
1.120
 Why?
Parasitic Diseases
2
2018
8
1.100
 Why?
Communicable Diseases, Emerging
3
2020
32
1.090
 Why?
Ranavirus
5
2022
6
1.090
 Why?
Conservation of Natural Resources
6
2018
107
1.070
 Why?
Population Density
12
2018
91
1.060
 Why?
Life Cycle Stages
9
2021
36
1.050
 Why?
Host Specificity
4
2022
26
0.990
 Why?
Coral Reefs
1
2024
5
0.940
 Why?
Phylogeny
6
2024
849
0.910
 Why?
Astacoidea
4
2012
6
0.880
 Why?
Environment
4
2015
344
0.860
 Why?
Toxoplasma
2
2020
38
0.830
 Why?
Introduced Species
3
2012
36
0.830
 Why?
Helminthiasis, Animal
2
2015
2
0.810
 Why?
Perciformes
2
2015
17
0.760
 Why?
Linear Models
3
2020
819
0.750
 Why?
Insecta
3
2017
63
0.720
 Why?
Leeches
1
2020
2
0.710
 Why?
Parasitology
2
2020
8
0.690
 Why?
Animal Diseases
3
2018
5
0.690
 Why?
Adaptation, Biological
1
2020
54
0.690
 Why?
Seasons
6
2020
494
0.680
 Why?
Behavior
1
2020
92
0.670
 Why?
Corticosterone
2
2018
220
0.670
 Why?
Biota
3
2019
31
0.660
 Why?
Host-Pathogen Interactions
6
2025
351
0.660
 Why?
Daphnia
3
2009
3
0.660
 Why?
Virulence
3
2023
255
0.660
 Why?
Nematoda
1
2019
4
0.640
 Why?
DNA Virus Infections
1
2018
3
0.620
 Why?
Echinostomiasis
1
2018
1
0.620
 Why?
Symbiosis
2
2016
71
0.620
 Why?
Ehrlichiosis
1
2018
2
0.620
 Why?
Entrepreneurship
1
2018
3
0.610
 Why?
Pesticides
2
2017
58
0.590
 Why?
Cercaria
4
2021
4
0.590
 Why?
Climate Change
10
2018
160
0.580
 Why?
Lyme Disease
1
2018
56
0.570
 Why?
Temperature
4
2018
634
0.570
 Why?
Animals, Wild
6
2024
54
0.570
 Why?
Bird Diseases
2
2015
10
0.550
 Why?
Congenital Abnormalities
3
2011
74
0.550
 Why?
Body Size
2
2015
104
0.530
 Why?
Ducks
1
2015
2
0.510
 Why?
Raptors
1
2015
2
0.500
 Why?
Charadriiformes
1
2015
4
0.500
 Why?
Cyprinodontiformes
2
2012
5
0.500
 Why?
Environmental Pollutants
1
2017
143
0.490
 Why?
Species Specificity
5
2020
574
0.470
 Why?
Communicable Disease Control
1
2015
73
0.470
 Why?
Caribbean Region
2
2024
25
0.460
 Why?
North America
5
2024
291
0.450
 Why?
Circadian Rhythm
1
2017
413
0.440
 Why?
Bayes Theorem
3
2020
373
0.440
 Why?
Biomass
2
2016
124
0.430
 Why?
Rana pipiens
2
2011
17
0.420
 Why?
Anti-Infective Agents
1
2016
247
0.420
 Why?
Phenotype
2
2020
3074
0.410
 Why?
Biomphalaria
2
2011
3
0.410
 Why?
Metacercariae
2
2023
3
0.370
 Why?
Hot Temperature
1
2014
369
0.360
 Why?
Rana catesbeiana
1
2011
12
0.360
 Why?
Metamorphosis, Biological
6
2012
22
0.350
 Why?
Computer Simulation
1
2015
939
0.350
 Why?
Behavior, Animal
1
2014
506
0.340
 Why?
Peptides
1
2016
923
0.340
 Why?
Phosphorus
2
2010
92
0.340
 Why?
Binomial Distribution
2
2020
5
0.340
 Why?
Body Temperature Regulation
1
2011
96
0.330
 Why?
Prevalence
4
2024
2554
0.330
 Why?
Nitrogen
2
2010
162
0.320
 Why?
Schistosomiasis mansoni
1
2009
23
0.310
 Why?
Schistosoma mansoni
1
2009
37
0.310
 Why?
Birds
3
2020
86
0.310
 Why?
Climate
2
2020
86
0.310
 Why?
Disease Susceptibility
1
2010
332
0.290
 Why?
Limb Deformities, Congenital
2
2005
12
0.280
 Why?
Lakes
2
2020
22
0.270
 Why?
Perches
1
2006
1
0.270
 Why?
DNA, Helminth
3
2024
17
0.270
 Why?
Helminths
2
2016
7
0.260
 Why?
Random Allocation
3
2015
346
0.260
 Why?
Gastropoda
2
2020
5
0.250
 Why?
Parasite Load
2
2018
8
0.240
 Why?
RNA, Ribosomal, 28S
1
2024
6
0.230
 Why?
DNA, Ribosomal
1
2024
83
0.220
 Why?
Endangered Species
3
2016
14
0.210
 Why?
Plants
2
2016
216
0.210
 Why?
Colorado
5
2025
4406
0.210
 Why?
Survival Analysis
3
2012
1269
0.210
 Why?
Wisconsin
3
2011
99
0.210
 Why?
Genetic Variation
2
2020
938
0.200
 Why?
Genomics
2
2025
717
0.200
 Why?
Electron Transport Complex IV
2
2020
57
0.190
 Why?
Likelihood Functions
2
2020
137
0.180
 Why?
Coinfection
2
2013
131
0.180
 Why?
Disease Resistance
2
2019
31
0.180
 Why?
Snakes
1
2020
20
0.180
 Why?
Life History Traits
1
2021
13
0.180
 Why?
Phytoplankton
1
2020
5
0.180
 Why?
Poisson Distribution
1
2020
73
0.170
 Why?
Disease Reservoirs
1
2020
19
0.170
 Why?
Phylogeography
1
2020
48
0.170
 Why?
Gene Flow
1
2020
77
0.160
 Why?
Time Factors
4
2015
6543
0.160
 Why?
Forelimb
2
2011
28
0.160
 Why?
Geography
3
2018
186
0.160
 Why?
DNA, Mitochondrial
1
2020
191
0.160
 Why?
Arachnid Vectors
1
2018
3
0.150
 Why?
Georgia
1
2018
79
0.150
 Why?
Biological Evolution
2
2020
432
0.150
 Why?
Ticks
1
2018
19
0.150
 Why?
Hindlimb
2
2011
122
0.150
 Why?
Deer
1
2018
30
0.150
 Why?
Antibodies, Protozoan
1
2018
32
0.150
 Why?
Forests
1
2018
58
0.150
 Why?
Analysis of Variance
2
2011
1288
0.150
 Why?
Public Health Practice
1
2018
64
0.140
 Why?
Seroepidemiologic Studies
1
2018
156
0.140
 Why?
Humans
15
2021
129248
0.140
 Why?
Nonlinear Dynamics
1
2018
88
0.140
 Why?
Spatial Analysis
1
2016
21
0.130
 Why?
Rana clamitans
1
2016
1
0.130
 Why?
Nitrogen Cycle
1
2016
11
0.130
 Why?
Male
6
2018
63501
0.130
 Why?
Feces
1
2019
441
0.130
 Why?
Bays
1
2015
6
0.130
 Why?
Extremities
2
2010
127
0.130
 Why?
Health Status Disparities
1
2018
251
0.120
 Why?
Meta-Analysis as Topic
1
2016
170
0.120
 Why?
Lethal Dose 50
1
2015
15
0.120
 Why?
Fungi
1
2016
135
0.120
 Why?
Dimethyl Sulfoxide
1
2015
41
0.120
 Why?
Solvents
1
2015
108
0.120
 Why?
Poverty
1
2018
496
0.120
 Why?
Acclimatization
1
2016
165
0.110
 Why?
Single-Blind Method
1
2015
271
0.110
 Why?
Aminobenzoates
1
2014
7
0.110
 Why?
Genetics, Population
1
2015
200
0.110
 Why?
Immunoglobulin G
1
2018
848
0.110
 Why?
Female
5
2018
68543
0.110
 Why?
Risk Assessment
2
2016
3233
0.110
 Why?
Fluorescent Dyes
1
2015
312
0.100
 Why?
Cattle
1
2016
977
0.100
 Why?
Extinction, Biological
4
2016
32
0.100
 Why?
Algorithms
2
2018
1613
0.100
 Why?
Immunity
1
2013
138
0.100
 Why?
Research
1
2015
416
0.100
 Why?
Light
1
2015
359
0.100
 Why?
Incidence
1
2018
2636
0.090
 Why?
Genetic Fitness
1
2012
54
0.090
 Why?
Competitive Behavior
1
2011
42
0.090
 Why?
Achlya
1
2011
1
0.090
 Why?
Risk Factors
4
2018
9745
0.090
 Why?
Trees
1
2011
69
0.090
 Why?
Urban Renewal
1
2011
4
0.090
 Why?
Metagenome
1
2012
140
0.090
 Why?
Reproduction
1
2013
197
0.090
 Why?
Escape Reaction
1
2011
62
0.090
 Why?
Agriculture
1
2011
91
0.090
 Why?
Immune Tolerance
1
2013
355
0.090
 Why?
Saprolegnia
1
2010
1
0.090
 Why?
Oregon
1
2010
70
0.090
 Why?
Population
1
2010
34
0.090
 Why?
Zooplankton
2
2008
2
0.090
 Why?
Smegmamorpha
1
2010
2
0.080
 Why?
Microbiota
1
2018
729
0.080
 Why?
Fertilizers
1
2010
25
0.080
 Why?
Bufonidae
1
2010
8
0.080
 Why?
Environmental Monitoring
1
2012
306
0.080
 Why?
Models, Statistical
1
2013
623
0.080
 Why?
Zoonoses
1
2010
28
0.080
 Why?
Forecasting
1
2011
359
0.080
 Why?
Lymnaea
1
2009
1
0.080
 Why?
Feeding Behavior
1
2015
622
0.080
 Why?
Chlorophyll
1
2008
13
0.080
 Why?
Cadmium
1
2009
67
0.080
 Why?
Disease Vectors
1
2008
13
0.080
 Why?
Brain
1
2020
2669
0.070
 Why?
Eukaryota
1
2008
53
0.070
 Why?
Animal Feed
1
2007
50
0.070
 Why?
Body Weight
1
2012
939
0.070
 Why?
Risk
1
2010
854
0.070
 Why?
Cannibalism
1
2006
3
0.070
 Why?
Motor Activity
1
2011
675
0.060
 Why?
Color
1
2006
73
0.060
 Why?
Regression Analysis
1
2009
991
0.060
 Why?
Databases, Factual
1
2011
1266
0.060
 Why?
Logistic Models
1
2011
1984
0.060
 Why?
Culture Media
1
2005
160
0.060
 Why?
Water
1
2007
440
0.060
 Why?
Microscopy
1
2005
141
0.050
 Why?
Hydrogen-Ion Concentration
1
2005
541
0.050
 Why?
Water Pollutants
1
2003
18
0.050
 Why?
United States
2
2018
13828
0.050
 Why?
Rats
1
2011
5482
0.050
 Why?
Fatty Acids
2
2019
426
0.050
 Why?
Brazil
1
2021
154
0.040
 Why?
Vertebrates
1
2021
58
0.040
 Why?
Adaptation, Physiological
1
2024
513
0.040
 Why?
Fatty Acids, Essential
1
2019
3
0.040
 Why?
Ultraviolet Rays
1
2003
382
0.040
 Why?
Sequence Analysis, DNA
1
2020
776
0.030
 Why?
Middle Aged
1
2018
31087
0.030
 Why?
Lipids
1
2019
625
0.030
 Why?
Adult
1
2018
35495
0.030
 Why?
Europe
1
2016
363
0.030
 Why?
Models, Theoretical
1
2018
546
0.030
 Why?
Sporangia
1
2012
2
0.030
 Why?
Gills
1
2012
3
0.030
 Why?
Gastrointestinal Contents
1
2012
7
0.030
 Why?
Health
1
2013
74
0.030
 Why?
Louisiana
1
2012
27
0.030
 Why?
Mutation
1
2003
3710
0.020
 Why?
New Hampshire
1
2011
4
0.020
 Why?
Mink
1
2011
12
0.020
 Why?
Metabolism
1
2011
38
0.020
 Why?
Rivers
1
2011
58
0.020
 Why?
Integumentary System
1
2010
2
0.020
 Why?
Genetic Markers
1
2011
336
0.020
 Why?
Canada
1
2011
350
0.020
 Why?
Virus Diseases
1
2012
210
0.020
 Why?
Proportional Hazards Models
1
2012
1197
0.020
 Why?
Comprehension
1
2011
164
0.020
 Why?
Stress, Physiological
1
2012
414
0.020
 Why?
Nutritive Value
1
2008
36
0.020
 Why?
Isotope Labeling
1
2008
74
0.020
 Why?
Food Preferences
1
2008
112
0.020
 Why?
Disease Outbreaks
1
2010
349
0.020
 Why?
Molecular Sequence Data
1
2011
2835
0.020
 Why?
West Indies
1
2005
4
0.020
 Why?
DNA, Ribosomal Spacer
1
2005
6
0.020
 Why?
Kenya
1
2005
107
0.010
 Why?
Prognosis
1
2013
3772
0.010
 Why?
Sequence Alignment
1
2005
332
0.010
 Why?
Wounds and Injuries
1
2010
710
0.010
 Why?
Polymerase Chain Reaction
1
2005
1036
0.010
 Why?
Johnson's Networks
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