World's Best Scientists 2026 revealed!
Patrick J. O’Farrell

Patrick J. O’Farrell

D-Index & Metrics

Environmental Sciences

D-Index
40
Citations
10199
World Ranking
7917
National Ranking
16

Patrick J. O’Farrell 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 Patrick J. O’Farrell 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: 87 publications — 7th percentile

7% of scientists in this discipline score the same or lower.

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

Patrick J. O’Farrell 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 Patrick J. O’Farrell 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: 40 D-Index — 19th percentile

19% of scientists in this discipline score the same or lower.

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

Overview

Patrick J. O'Farrell is affiliated with the University of Cape Town in South Africa. Their research primarily falls within the domain of Environmental Science, contributing extensively to understanding global and planetary change, as well as health, toxicology, and mutagenesis. Other noted subfields of their work include management, monitoring, policy and law, plant science, and nature and landscape conservation.

O'Farrell's recent publications cover a range of topics related to sustainability, biodiversity, and environmental governance. Notable papers include:

  • Diverse values of nature for sustainability, 2023, published in Nature
  • Levers and leverage points for pathways to sustainability, 2020, published in People and Nature
  • Plural valuation of nature for equity and sustainability: Insights from the Global South, 2020, published in Global Environmental Change
  • Summary for policymakers of the methodological assessment of the diverse values and valuation of nature of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), 2022, published in UEA Digital Repository (University of East Anglia)
  • Use your power for good: plural valuation of nature - the Oaxaca statement, 2020, published in Global Sustainability

Their collaboration network includes frequent co-authors such as Ritesh Kumar, Adrián Martín, Nadia Sitas, Unai Pascual, and Patricia Balvanera. These partnerships indicate a multidisciplinary and international breadth in their research activities.

O'Farrell's work is often published in venues such as Zenodo (CERN European Organization for Nuclear Research), Ecosystems and People, Ecology and Society, UEA Digital Repository (University of East Anglia), and People and Nature. The large volume of publications in these outlets highlights ongoing engagement with environmental science communities and open-access platforms.

The scientist's main topics of investigation encompass:

  • Land Use and Ecosystem Services
  • Conservation, Biodiversity, and Resource Management
  • Sustainability and Climate Change Governance
  • Urban Green Space and Health
  • Urban Agriculture and Sustainability
  • Environmental Philosophy and Ethics
  • Sustainable Development and Environmental Policy

Overall, the research profile of Patrick J. O'Farrell demonstrates consistent contributions across various environmental science disciplines, with a focus on sustainability, ecosystem services, and governance issues important for global and local environmental management.

Best Publications

  • Valuing nature's contributions to people: the IPBES approach

    Unai Pascual;Unai Pascual;Patricia Balvanera;Sandra Díaz;György Pataki

  • Grasslands—more important for ecosystem services than you might think

    J. Bengtsson;J. Bengtsson;J. M. Bullock;B. Egoh;B. Egoh;C. Everson

  • An operational model for mainstreaming ecosystem services for implementation

    Richard M Cowling;Benis Egoh;Andrew T Knight;Patrick J O'Farrell

  • Urban Ecosystem Services

    Erik Gómez-Baggethun;Åsa Gren;David N. Barton;Johannes Langemeyer

  • Distilling the role of ecosystem services in the Sustainable Development Goals

    Sylvia L.R. Wood;Sylvia L.R. Wood;Sarah K. Jones;Sarah K. Jones;Justin A. Johnson;Kate A. Brauman

  • Impacts of invasive Australian acacias: implications for management and restoration

    David C. Le Maitre;Mirijam Gaertner;Elizabete Marchante;Emilie Jane Ens

  • Sustainable multifunctional landscapes: a review to implementation

    Patrick J. O’Farrell;Pippin M. L. Anderson

  • Ecosystem Services, Land-Cover Change, and Stakeholders: Finding a Sustainable Foothold for a Semiarid Biodiversity Hotspot

    Belinda Reyers;Patrick J. O'Farrell;Richard M. Cowling;Benis N. Egoh

  • The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project

    Lawrence N. Hudson;Tim Newbold;Tim Newbold;Sara Contu;Samantha L.L. Hill;Samantha L.L. Hill

  • Levers and leverage points for pathways to sustainability

    Kai M. A. Chan;David R. Boyd;Rachelle K. Gould;Jens Jetzkowitz

  • Navigating complexity through knowledge coproduction: Mainstreaming ecosystem services into disaster risk reduction.

    Belinda Reyers;Belinda Reyers;Jeanne L. Nel;Jeanne L. Nel;Patrick J. O’Farrell;Nadia Sitas;Nadia Sitas

  • An African account of ecosystem service provision : use, threats and policy options for sustainable livelihoods

    Benis N. Egoh;Patrick J. O'Farrell;Aymen Charef;Leigh Josephine Gurney

  • Plural valuation of nature for equity and sustainability: Insights from the Global South

    Noelia Zafra-Calvo;Patricia Balvanera;Unai Pascual;Unai Pascual;Unai Pascual;Juliana Merçon

  • Transdisciplinary research for systemic change: who to learn with, what to learn about and how to learn

    Dirk J Roux;Dirk J Roux;Jeanne L Nel;Jeanne L Nel;Georgina Cundill;Georgina Cundill;Patrick J O'Farrell;Patrick J O'Farrell

  • Perceptions of impact: Invasive alien plants in the urban environment.

    Luke J. Potgieter;Mirijam Gaertner;Patrick J. O'Farrell;David M. Richardson

  • Multi-functional landscapes in semi arid environments: implications for biodiversity and ecosystem services

    P. J. O’Farrell;B. Reyers;D. C. Le Maitre;S. J. Milton

  • Alien plants as mediators of ecosystem services and disservices in urban systems: a global review

    Luke J. Potgieter;Mirijam Gaertner;Christoph Kueffer;Christoph Kueffer;Brendon M. H. Larson

  • Managing the mismatches to provide ecosystem services for human well-being: a conceptual framework for understanding the New Commons

    Anantha Kumar Duraiappah;Stanley Tanyi Asah;Eduardo S Brondizio;Nicolas Kosoy

  • The prioritisation of invasive alien plant control projects using a multi-criteria decision model informed by stakeholder input and spatial data.

    G.G. Forsyth;D.C. Le Maitre;P.J. O'Farrell;B.W. van Wilgen

  • Impacts of land-cover change on the water flow regulation ecosystem service: Invasive alien plants, fire and their policy implications

    David C. Le Maitre;Ilse M. Kotzee;Patrick J. O’Farrell

Frequent Co-Authors

Belinda Reyers
Belinda Reyers University of Pretoria
Benis Egoh
Benis Egoh University of California, Irvine
David M. Richardson
David M. Richardson Stellenbosch University
Karen J. Esler
Karen J. Esler Stellenbosch University
David C. Le Maitre
David C. Le Maitre Council for Scientific and Industrial Research
Jeanne L. Nel
Jeanne L. Nel Wageningen University & Research
Mirijam Gaertner
Mirijam Gaertner Nürtingen-Geislingen University of Economics and Environment
Felix Eigenbrod
Felix Eigenbrod University of Southampton
Bernardo B. N. Strassburg
Bernardo B. N. Strassburg International Institute for Sustainability (IIS)
Tom M. Fayle
Tom M. Fayle Queen Mary University of London

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Related Online Degrees & Career Pathways

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Educators seeking advanced credentials might also consider EdS to EdD bridge programs online, which provide a streamlined pathway from education specialist degrees to doctorates. This is particularly useful for those integrating environmental studies into academic or training settings.

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