World's Best Scientists 2026 revealed!
Chris J. Topping

Chris J. Topping

D-Index & Metrics

Environmental Sciences

D-Index
39
Citations
5027
World Ranking
8434
National Ranking
118

Chris J. Topping publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Chris J. Topping sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 123 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Chris J. Topping D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Chris J. Topping sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 39 D-Index — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Chris J. Topping is affiliated with Aarhus University in Denmark and has a focused research profile within Agricultural and Biological Sciences. Their work encompasses numerous subfields including Insect Science, Food Science, Ecology, Evolution, Behavior and Systematics, Genetics, and Pollution.

The main research topics addressed in Topping's publications cover a broad range of areas within agricultural and ecological sciences. These include:

  • Insect and Pesticide Research
  • Plant and animal studies
  • Insect and Arachnid Ecology and Behavior
  • Agricultural safety and regulations
  • Pesticide Residue Analysis and Safety
  • Pesticide and Herbicide Environmental Studies
  • Insect-Plant Interactions and Control

Topping has published extensively, often appearing in venues that specialize in ecological and agricultural systems. Frequent publication venues include:

  • Food and Ecological Systems Modelling Journal
  • EFSA Journal
  • EFSA Supporting Publications
  • The Science of The Total Environment
  • Research Ideas and Outcomes

Recent notable papers authored or co-authored by Topping highlight their involvement in pesticide risk assessment and environmental safety. These papers are:

  • Overhaul environmental risk assessment for pesticides, 2020, Science
  • Improving pesticide-use data for the EU, 2021, Nature Ecology & Evolution
  • Development of Integrated Approaches to Testing and Assessment (IATA) case studies on developmental neurotoxicity (DNT) risk assessment, 2021, EFSA Journal
  • Statement on the active substance acetamiprid, 2022, EFSA Journal
  • European hares do not avoid newly pesticide-sprayed fields: Overspray as unnoticed pathway of pesticide exposure, 2020, The Science of The Total Environment

Collaboration plays a significant role in Topping's research output. Frequent co-authors include:

  • Xiaodong Duan
  • Annette Aldrich
  • Sabine Duquesne
  • Andreas Focks
  • Silvia Pieper

Best Publications

  • Limitations to the use of pitfall traps in ecological studies exemplified by a study of spiders in a field of winter wheat

    Topping Cj;Sunderland Kd

  • Overhaul environmental risk assessment for pesticides.

    C. J. Topping;A. Aldrich;P. Berny

  • ALMaSS, an agent-based model for animals in temperate European landscapes

    Chris J. Topping;Tine S. Hansen;Thomas S. Jensen;Jane U. Jepsen

  • Representing the acquisition and use of energy by individuals in agent‐based models of animal populations

    Richard M. Sibly;Volker Grimm;Volker Grimm;Benjamin T. Martin;Alice S. A. Johnston

  • Scientific Opinion addressing the state of the science on risk assessment of plant protection products for in-soil organisms

    Colin Ockleford;Paulien Adriaanse;Philippe Berny;Theodorus Brock

  • Scientific Opinion on the state of the art of Toxicokinetic/Toxicodynamic (TKTD) effect models for regulatory risk assessment of pesticides for aquatic organisms

    Colin Ockleford;Paulien Adriaanse;Philippe Berny;Theodorus Brock

  • A spider population in flux: selection and abandonment of artificial web-sites and the importance of intraspecific interactions in Lephthyphantes tenuis (Araneae: Linyphiidae) in wheat

    Ferenc Samu;Keith D. Sunderland;Chris J. Topping;John S. Fenlon

  • Opening the black box—Development, testing and documentation of a mechanistically rich agent-based model

    Chris J. Topping;Chris J. Topping;Toke T. Høye;Toke T. Høye;Carsten Riis Olesen

  • Modelling roe deer (Capreolus capreolus) in a gradient of forest fragmentation: behavioural plasticity and choice of cover

    J U Jepsen;C J Topping

  • Behavioural responses of three linyphiid spiders to pitfall traps

    C. J. Topping

  • The influence of landscape diversity and heterogeneity on spatial dynamics of agrobiont linyphiid spiders: An individual-based model

    P. Thorbek;C.J. Topping

  • Ground beetles and weevils (Carabidae and Curculionoidea) as indicators of grassland management practices

    M. D. Eyre;M. L. Luff;S. P. Rushton;C. J. Topping

  • A Bayesian sensitivity analysis applied to an Agent-based model of bird population response to landscape change

    Hazel R. Parry;Christopher J. Topping;Marc C. Kennedy;Nigel D. Boatman

  • Population-level impacts of pesticide-induced chronic effects on individuals depend more on ecology than toxicology ☆

    Trine Dalkvist;Christopher John Topping;Christopher John Topping;E. Valery Forbes

  • Scientific Opinion on the state of the science on pesticide risk assessment for amphibians and reptiles

    Colin Ockleford;Paulien Adriaanse;Philippe Berny;Theodorus Brock

  • Biodiversity and the mitigation of climate change through bioenergy: impacts of increased maize cultivation on farmland wildlife

    Jana Gevers;Toke Thomas Høye;Chris John Topping;Michael Glemnitz

  • SPIDER DENSITY AND DIVERSITY IN RELATION TO DISTURBANCE IN AGROECOSYSTEMS IN NEW ZEALAND, WITH A COMPARISON TO ENGLAND

    Chris J. Topping;Gábor L. Lövei

  • Modeling the influence of temporal and spatial factors on the assessment of impacts of pesticides on skylarks.

    Christopher John Topping;Peter Odderskær

  • Mighty small: Observing and modeling individual microbes becomes big science.

    Jan Ulrich Kreft;Caroline M. Plugge;Volker Grimm;Clara Prats

  • Risk Assessment of UK Skylark Populations Using Life-History and Individual-Based Landscape Models

    C. J. Topping;R. M. Sibly;H. R. Akçakaya;G. C. Smith

  • The effects of spatial and temporal heterogeneity on the population dynamics of four animal species in a Danish landscape

    Richard M Sibly;Richard M Sibly;Jacob Nabe-Nielsen;Jacob Nabe-Nielsen;Mads C Forchhammer;Mads C Forchhammer;Valery E Forbes

Frequent Co-Authors

Richard M. Sibly
Richard M. Sibly University of Reading
Olavi Pelkonen
Olavi Pelkonen University of Oulu
K. D. Sunderland
K. D. Sunderland University of Warwick
Ryszard Laskowski
Ryszard Laskowski Jagiellonian University
Volker Grimm
Volker Grimm Helmholtz Centre for Environmental Research
Toke T. Høye
Toke T. Høye Aarhus University
Jacob Nabe-Nielsen
Jacob Nabe-Nielsen Aarhus University
Ioanna Tzoulaki
Ioanna Tzoulaki Imperial College London
Mads C. Forchhammer
Mads C. Forchhammer University of Copenhagen
Cino Pertoldi
Cino Pertoldi Aalborg University

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