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Ecology and Evolution
Estonia
2026
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Plant Science and Agronomy
Estonia
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 57 1440 1320 3 3 414 11784
Ecology and Evolution 58 2582 2473 8 8 365 11421

Ingrid H. Williams publications per year

The chart shows the history of publications by Ingrid H. Williams between 1955 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ingrid H. Williams published across 67 years, from 1955 to 2021, averaging 6.3 papers a year. Output peaked at 36 publications in 2000. 5 of the 423 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1955 to 2021. Vertical axis: number of publications, 0 to 36. Peak 36 publications in 2000. 1955: 1 publication 1956: 1 publication 1957: 0 publications 1958: 0 publications 1959: 3 publications 1960: 1 publication 1961: 2 publications 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 2 publications 1971: 1 publication 1972: 5 publications 1973: 3 publications 1974: 3 publications 1975: 6 publications 1976: 3 publications 1977: 0 publications 1978: 5 publications 1979: 5 publications 1980: 4 publications 1981: 5 publications 1982: 4 publications 1983: 3 publications 1984: 2 publications 1985: 2 publications 1986: 2 publications 1987: 5 publications 1988: 1 publication 1989: 7 publications 1990: 4 publications 1991: 16 publications 1992: 5 publications 1993: 9 publications 1994: 8 publications 1995: 10 publications 1996: 14 publications 1997: 14 publications 1998: 10 publications 1999: 19 publications 2000: 36 publications 2001: 11 publications 2002: 21 publications 2003: 10 publications 2004: 11 publications 2005: 10 publications 2006: 32 publications 2007: 11 publications 2008: 6 publications 2009: 3 publications 2010: 16 publications 2011: 7 publications 2012: 9 publications 2013: 9 publications 2014: 9 publications 2015: 13 publications 2016: 7 publications 2017: 5 publications 2018: 4 publications 2019: 3 publications 2020: 4 publications 2021: 1 publication
1955 2021

423 publications in total across all disciplines

View publications per year as a table
Ingrid H. Williams: publications per year, 1955 to 2021
Year Publications
1955 1
1956 1
1957 0
1958 0
1959 3
1960 1
1961 2
1962 0
1963 0
1964 0
1965 0
1966 0
1967 0
1968 0
1969 0
1970 2
1971 1
1972 5
1973 3
1974 3
1975 6
1976 3
1977 0
1978 5
1979 5
1980 4
1981 5
1982 4
1983 3
1984 2
1985 2
1986 2
1987 5
1988 1
1989 7
1990 4
1991 16
1992 5
1993 9
1994 8
1995 10
1996 14
1997 14
1998 10
1999 19
2000 36
2001 11
2002 21
2003 10
2004 11
2005 10
2006 32
2007 11
2008 6
2009 3
2010 16
2011 7
2012 9
2013 9
2014 9
2015 13
2016 7
2017 5
2018 4
2019 3
2020 4
2021 1
Total 423
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Ingrid H. Williams publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Ingrid H. Williams sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 411–415 publications, is where this scientist sits. 36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36–40 publications 467+

This scientist: 414 publications — 98th percentile

98% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11 414
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
Download as CSV

Ingrid H. Williams D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Ingrid H. Williams sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 57 D-Index, is where this scientist sits. 30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 57 D-Index — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98
55 79
56 85
57 88 57
58 91
59 62
60 61
61 59
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
Download as CSV

Research.com Recognitions

  • 2026 - Research.com Ecology and Evolution in Estonia Leader Award
  • 2026 - Research.com Plant Science and Agronomy in Estonia Leader Award

Overview

What is she best known for?

The fields of study she is best known for:

  • Ecology
  • Botany
  • Agriculture

Ingrid H. Williams focuses on Agronomy, Pollination, Botany, Meligethes aeneus and Ecology. Her Agronomy research is multidisciplinary, incorporating perspectives in PEST analysis and Larva. When carried out as part of a general Pollination research project, her work on Pollination management is frequently linked to work in Value, therefore connecting diverse disciplines of study.

The concepts of her Meligethes aeneus study are interwoven with issues in Biological pest control, Integrated pest management and Pollen beetle. Her Brassica research is multidisciplinary, relying on both Oil seed and Weevil. Her work carried out in the field of Apidae brings together such families of science as Pheromone, Honey bee and Pollinator.

Her most cited work include:

  • A landscape‐scale study of bumble bee foraging range and constancy, using harmonic radar (395 citations)
  • Bees and the Pollination of Crops and Wild Flowers in the European Community (314 citations)
  • The conservation of bees. (232 citations)

What are the main themes of her work throughout her whole career to date?

Her primary scientific interests are in Agronomy, Botany, Horticulture, Ecology and Pollination. Her study in Agronomy focuses on Crop, Brassica, Weevil, Integrated pest management and Meligethes aeneus. Her Integrated pest management research incorporates themes from PEST analysis and Biological pest control.

Her Meligethes aeneus research is multidisciplinary, incorporating elements of Trap crop and Pollen beetle. Foraging is the focus of her Ecology research. Her biological study spans a wide range of topics, including Agroforestry, Insect and Cultivar.

She most often published in these fields:

  • Agronomy (34.73%)
  • Botany (22.45%)
  • Horticulture (14.62%)

What were the highlights of her more recent work (between 2009-2020)?

  • Agronomy (34.73%)
  • Botany (22.45%)
  • Biological pest control (9.66%)

In recent papers she was focusing on the following fields of study:

The scientist’s investigation covers issues in Agronomy, Botany, Biological pest control, Ecology and Overwintering. Her Botany study integrates concerns from other disciplines, such as Metabolic rate and Animal science. Her study in Biological pest control is interdisciplinary in nature, drawing from both Pesticide, Host, Toxicology and Integrated pest management.

Ecology and Phytophthora infestans are commonly linked in her work. Her Weevil study also includes

  • Pollen beetle together with Meligethes aeneus,
  • Pest control, which have a strong connection to Crop protection. Her Crop research focuses on subjects like Agroforestry, which are linked to Nectar, Pollination, Inflorescence, Ecological succession and Push–pull strategy.

Between 2009 and 2020, her most popular works were:

  • The Major Insect Pests of Oilseed Rape in Europe and Their Management: An Overview (87 citations)
  • Biocontrol-based integrated management of oilseed rape pests (75 citations)
  • Parasitoids of Oilseed Rape Pests in Europe: Key Species for Conservation Biocontrol (35 citations)

In her most recent research, the most cited papers focused on:

  • Ecology
  • Botany
  • Agriculture

Her primary areas of investigation include Agronomy, Parasitoid, Biological pest control, Parasitism and Botany. Her Weevil study in the realm of Agronomy interacts with subjects such as Nitrogen fixation. Her Weevil research is multidisciplinary, incorporating perspectives in Brassica and Flea beetle.

The various areas that she examines in her Biological pest control study include Host, Entomovector, Integrated pest management and Crop. Her Parasitism research includes elements of PEST analysis, Meligethes aeneus, Agriculture and Insect. Her Foraging study, which is part of a larger body of work in Ecology, is frequently linked to Air temperature, bridging the gap between disciplines.

Best Publications

  • A landscape-scale study of bumble bee foraging range and constancy, using harmonic radar

    J.L. Osborne;S.J. Clark;R.J. Morris;I.H. Williams

  • Bees and the Pollination of Crops and Wild Flowers in the European Community

    Sarah A Corbet;Ingrid H Williams;Juliet L Osborne

  • Tracking bees with harmonic radar

    J. R. Riley;A. D. Smith;D. R. Reynolds;A. S. Edwards

  • Are honey bees' foraging preferences affected by pollen amino acid composition?

    Samantha M. Cook;Caroline S. Awmack;Caroline S. Awmack;Darren A. Murray;Ingrid H. Williams

  • The dependence of crop production within the European Union on pollination by honey bees

    I.H. Williams

  • The conservation of bees.

    A. Matheson;S. L. Buchmann;C. O'Toole;P. Westrich

  • Food for insect pollinators on farmland: insect visits to flowers of annual seed mixtures

    N.L. Carreck;I.H. Williams

  • The economic value of bees in the UK

    Norman L. Carreck;Ingrid H. Williams

  • The Major Insect Pests of Oilseed Rape in Europe and Their Management: An Overview

    Ingrid H. Williams

  • Honey-bee-mediated infection of pollen beetle (Meligethes aeneus Fab.) by the insect-pathogenic fungus, Metarhizium anisopliae

    T. M. Butt;N. L. Carreck;L. Ibrahim;I. H. Williams

  • Wound‐induced increases in the glucosinolate content of oilseed rape and their effect on subsequent herbivory by a crucifer specialist

    Elspeth Bartlet;Guy Kiddle;Ingrid Williams;Roger Wallsgrove

  • Effective microorganisms and their influence on vegetable production - a review

    M. Olle;I. H. Williams

  • Bees, Pollination and Habitat Change in the European Community

    Juliet L Osborne;Ingrid H Williams;Sarah A Corbet

  • Spatial distribution of pest insects in oilseed rape: implications for integrated pest management

    Andrew W. Ferguson;Zdzisław Klukowski;Barbara Walczak;Suzanne J. Clark

  • Factors determining the rearing and rejection of drones by the honeybee colony

    J.B. Free;Ingrid H. Williams

  • Compensation for wind drift by bumble-bees

    J. R. Riley;D. R. Reynolds;A. D. Smith;A. S. Edwards

  • Exploitation of host plant preferences in pest management strategies for oilseed rape (Brassica napus)

    S.M. Cook;L.E. Smart;J.L. Martin;D.A. Murray

  • THE RESPONSES OF THE POLLEN BEETLE, MELIGETHES AENEUS, AND THE SEED WEEVIL, CEUTHORHYNCHUS ASSIMILIS, TO OIL-SEED RAPE, BRASSICA NAPUS, AND OTHER PLANTS

    J. B. Free;Ingrid H. Williams

  • (Z)-11-eicosen-1-ol, an important new pheromonal component from the sting of the honey bee,Apis mellifera L. (Hymenoptera, Apidae.)

    J. A. Pickett;Ingrid H. Williams;A. P. Martin

  • Biocontrol-based integrated management of oilseed rape pests

    Ingrid H. Williams

  • Nasonov pheromone of the honey bee, Apis mellifera L. (Hymenoptera: Apidae). Part I. Chemical characterization

    J. A. Pickett;Ingrid H. Williams;A. P. Martin;M. C. Smith

  • The transport of pollen on the body hairs of honeybees (Apis mellifera L.) and bumblebees (Bombus spp. L.)

    J. B. Free;Ingrid H. Williams

  • The feeding and mating behaviour of pollen beetles ( Meligethes aeneus Fab.) and seed weevils ( Ceutorhynchus assimilis Payk.) on oil-seed rape ( Brassica napus L.)

    Ingrid H. Williams;J. B. Free

  • Aspects of bee diversity and crop pollination in the European Union

    I. H. Williams

  • Growth stimulation of beetle larvae reared on a transgenic oilseed rape expressing a cysteine proteinase inhibitor.

    Cécile Girard;Martine Le Métayer;Bruno Zaccomer;Elspeth Bartlet

  • Compensation of oil-seed rape ( Brassica napus L.) plants after damage to their buds and pods

    Ingrid H. Williams;J. B. Free

  • ANTENNAL CONTACT CHEMOSENSILLA IN PSYLLIODES CHRYSOCEPHALA RESPONDING TO CRUCIFEROUS ALLELOCHEMICALS

    N. Isidoro;E. Bartlet;J. Ziesmann;I. H. Williams

  • Beekeeping, Wild Bees and Pollination in the European Community

    Ingrid H Williams;Sarah A Corbet;Juliet L Osborne

  • The responses of the cabbage seed weevil Ceutorhynchus assimilis to volatile compounds from oilseed rape in a linear track olfactometer

    E. Bartlet;M. M. Blight;P. W. Lane;I. H. Williams

Frequent Co-Authors

Suzanne J. Clark
Suzanne J. Clark Rothamsted Research
Juliet L. Osborne
Juliet L. Osborne University of Exeter
Christer Nilsson
Christer Nilsson Umeå University
John A. Pickett
John A. Pickett Cardiff University
Joe N. Perry
Joe N. Perry Rothamsted Research
Guy M. Poppy
Guy M. Poppy University of Southampton
Alan D. Smith
Alan D. Smith Rothamsted Research
Tariq M. Butt
Tariq M. Butt Swansea University
Don R. Reynolds
Don R. Reynolds University of Greenwich
Sarah A. Corbet
Sarah A. Corbet University of Cambridge

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