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Ecology and Evolution
Portugal
2026
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Plant Science and Agronomy
Portugal
2022

D-Index & Metrics

Ecology and Evolution

D-Index
80
Citations
28054
World Ranking
822
National Ranking
3

Helena Freitas publication distribution in Ecology and Evolution in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Ecology and Evolution in 2026. The highlighted bar marks where Helena Freitas sits on this spectrum.

37–41 publications: 2 scientists 42–46 publications: 9 scientists 47–51 publications: 10 scientists 52–56 publications: 31 scientists 57–61 publications: 56 scientists 62–66 publications: 91 scientists 67–71 publications: 92 scientists 72–76 publications: 127 scientists 77–81 publications: 173 scientists 82–86 publications: 236 scientists 87–91 publications: 227 scientists 92–96 publications: 240 scientists 97–101 publications: 333 scientists 102–106 publications: 280 scientists 107–111 publications: 300 scientists 112–116 publications: 285 scientists 117–121 publications: 305 scientists 122–126 publications: 287 scientists 127–131 publications: 278 scientists 132–136 publications: 289 scientists 137–141 publications: 273 scientists 142–146 publications: 262 scientists 147–151 publications: 246 scientists 152–156 publications: 235 scientists 157–161 publications: 205 scientists 162–166 publications: 199 scientists 167–171 publications: 174 scientists 172–176 publications: 164 scientists 177–181 publications: 173 scientists 182–186 publications: 189 scientists 187–191 publications: 170 scientists 192–196 publications: 139 scientists 197–201 publications: 128 scientists 202–206 publications: 117 scientists 207–211 publications: 115 scientists 212–216 publications: 107 scientists 217–221 publications: 124 scientists 222–226 publications: 81 scientists 227–231 publications: 82 scientists 232–236 publications: 85 scientists 237–241 publications: 75 scientists 242–246 publications: 66 scientists 247–251 publications: 81 scientists 252–256 publications: 69 scientists 257–261 publications: 70 scientists 262–266 publications: 55 scientists 267–271 publications: 64 scientists 272–276 publications: 49 scientists 277–281 publications: 48 scientists 282–286 publications: 44 scientists 287–291 publications: 45 scientists 292–296 publications: 36 scientists 297–301 publications: 39 scientists 302–306 publications: 38 scientists 307–311 publications: 30 scientists 312–316 publications: 34 scientists 317–321 publications: 25 scientists 322–326 publications: 22 scientists 327–331 publications: 28 scientists 332–336 publications: 30 scientists 337–341 publications: 22 scientists 342–346 publications: 30 scientists 347–351 publications: 26 scientists 352–356 publications: 22 scientists 357–361 publications: 29 scientists 362–366 publications: 21 scientists 367–371 publications: 12 scientists 372–376 publications: 18 scientists 377–381 publications: 17 scientists 382–386 publications: 13 scientists 387–391 publications: 21 scientists 392–396 publications: 13 scientists 397–401 publications: 10 scientists 402–406 publications: 15 scientists 407–411 publications: 8 scientists 412–416 publications: 9 scientists 417–421 publications: 8 scientists 422–426 publications: 4 scientists 427–431 publications: 10 scientists 432–436 publications: 10 scientists 437–441 publications: 5 scientists 442–446 publications: 4 scientists 447–451 publications: 10 scientists 452–456 publications: 2 scientists 457–461 publications: 4 scientists 462–466 publications: 7 scientists 467–471 publications: 7 scientists 472–476 publications: 6 scientists 477–481 publications: 6 scientists 482–486 publications: 3 scientists 487–491 publications: 3 scientists 492–496 publications: 4 scientists 497–501 publications: 4 scientists 502–506 publications: 8 scientists 507–511 publications: 5 scientists 512–516 publications: 4 scientists 517–521 publications: 5 scientists 522–526 publications: 4 scientists 527–530 publications: 5 scientists 531+ publications: 100 scientists
37 publications 531+

This scientist: 273 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 531 publications or more.

Helena Freitas D-index placement in Ecology and Evolution in 2026

The chart shows the D-index (discipline H-index) distribution of Ecology and Evolution scientists ranked by Research.com in 2026. The highlighted bar marks where Helena Freitas sits on this spectrum.

30 D-Index: 95 scientists 31 D-Index: 123 scientists 32 D-Index: 191 scientists 33 D-Index: 245 scientists 34 D-Index: 252 scientists 35 D-Index: 244 scientists 36 D-Index: 249 scientists 37 D-Index: 244 scientists 38 D-Index: 254 scientists 39 D-Index: 254 scientists 40 D-Index: 280 scientists 41 D-Index: 274 scientists 42 D-Index: 266 scientists 43 D-Index: 233 scientists 44 D-Index: 248 scientists 45 D-Index: 208 scientists 46 D-Index: 201 scientists 47 D-Index: 213 scientists 48 D-Index: 207 scientists 49 D-Index: 172 scientists 50 D-Index: 209 scientists 51 D-Index: 199 scientists 52 D-Index: 153 scientists 53 D-Index: 169 scientists 54 D-Index: 163 scientists 55 D-Index: 148 scientists 56 D-Index: 120 scientists 57 D-Index: 146 scientists 58 D-Index: 137 scientists 59 D-Index: 140 scientists 60 D-Index: 104 scientists 61 D-Index: 119 scientists 62 D-Index: 118 scientists 63 D-Index: 99 scientists 64 D-Index: 77 scientists 65 D-Index: 100 scientists 66 D-Index: 86 scientists 67 D-Index: 83 scientists 68 D-Index: 75 scientists 69 D-Index: 94 scientists 70 D-Index: 57 scientists 71 D-Index: 68 scientists 72 D-Index: 59 scientists 73 D-Index: 63 scientists 74 D-Index: 66 scientists 75 D-Index: 60 scientists 76 D-Index: 42 scientists 77 D-Index: 49 scientists 78 D-Index: 39 scientists 79 D-Index: 37 scientists 80 D-Index: 43 scientists 81 D-Index: 41 scientists 82 D-Index: 45 scientists 83 D-Index: 34 scientists 84 D-Index: 40 scientists 85 D-Index: 35 scientists 86 D-Index: 55 scientists 87 D-Index: 24 scientists 88 D-Index: 24 scientists 89 D-Index: 30 scientists 90 D-Index: 23 scientists 91 D-Index: 25 scientists 92 D-Index: 27 scientists 93 D-Index: 27 scientists 94 D-Index: 13 scientists 95 D-Index: 23 scientists 96 D-Index: 12 scientists 97 D-Index: 14 scientists 98 D-Index: 19 scientists 99 D-Index: 16 scientists 100 D-Index: 14 scientists 101 D-Index: 5 scientists 102 D-Index: 21 scientists 103 D-Index: 16 scientists 104 D-Index: 10 scientists 105 D-Index: 7 scientists 106 D-Index: 7 scientists 107 D-Index: 7 scientists 108 D-Index: 6 scientists 109 D-Index: 9 scientists 110 D-Index: 11 scientists 111 D-Index: 12 scientists 112 D-Index: 9 scientists 113 D-Index: 7 scientists 114 D-Index: 3 scientists 115 D-Index: 8 scientists 116 D-Index: 5 scientists 117 D-Index: 11 scientists 118 D-Index: 4 scientists 119 D-Index: 2 scientists 120 D-Index: 5 scientists 121+ D-Index: 100 scientists
30 D-Index 121+

This scientist: 80 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 121 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Ecology and Evolution in Portugal Leader Award
  • 2025 - Research.com Ecology and Evolution in Portugal Leader Award
  • 2022 - Research.com Ecology and Evolution in Portugal Leader Award
  • 2022 - Research.com Plant Science and Agronomy in Portugal Leader Award

Overview

Helena Freitas is affiliated with the University of Coimbra in Portugal and has a research focus primarily within Environmental Science and Agricultural and Biological Sciences. Their work spans various subfields including Plant Science, Global and Planetary Change, Ecology, Nature and Landscape Conservation, and Ecology, Evolution, Behavior and Systematics.

The scientist has contributed to topics such as:

  • Plant-Microbe Interactions and Immunity
  • Ecology and Vegetation Dynamics Studies
  • Plant Stress Responses and Tolerance
  • Land Use and Ecosystem Services
  • Conservation, Biodiversity, and Resource Management
  • Plant Pathogens and Fungal Diseases
  • Nanoparticles: synthesis and applications

Recent papers by Helena Freitas include:

  • "Drought and Salinity Stress Responses and Microbe-Induced Tolerance in Plants" (2020) published in Frontiers in Plant Science
  • "Plant growth promoting bacteria improve growth and phytostabilization potential of Zea mays under chromium and drought stress by altering photosynthetic and antioxidant responses" (2021) published in Environmental Technology & Innovation
  • "Strategies and prospects for biostimulants to alleviate abiotic stress in plants" (2022) published in Frontiers in Plant Science
  • "Early detection, herbicide resistance screening, and integrated management of invasive plant species: a review" (2022) published in Pest Management Science
  • "Enhanced phytoextraction of multi-metal contaminated soils under increased atmospheric temperature by bioaugmentation with plant growth promoting Bacillus cereus" (2021) published in Journal of Environmental Management

Frequent co-authors collaborating with Helena Freitas include:

  • Joana Alves
  • António C. Gouveia
  • Alexandros Tataridas
  • Ana Margarida Dias da Silva
  • António Alves da Silva

The most common publication venues for their work are:

  • Frontiers in Plant Science
  • Plants
  • Journal of Environmental Management
  • Agronomy
  • Ecosystems and People

Helena Freitas has also contributed to several books published by multiple publishers. These include:

  • "GESTÃO DE RECURSOS NATURAIS: PERSPECTIVAS MULTIDISCIPLINARES" (2024) published by Home Editora eBooks
  • "DIÁLOGOS INTERDISCILINARES: INOVAÇÃO, PESQUISA E SOCIEDADE VOLUME IV" (2025) published by Home Editora eBooks
  • "GESTÃO DE RECURSOS NATURAIS: PERSPECTIVAS MULTIDISCIPLINARES - Volume II" (2025) published by Home Editora eBooks
  • "O 25 de Abril de 1974 na voz dos cartoons: Uma coleção da Companhia de Diamantes de Angola (Diamang)" (2025) published by Imprensa da Universidade de Coimbra eBooks
  • "Olhares do Sul. 50 anos do 25 de Abril de 1974: 50 capas de jornais angolanos" (2025) published by Imprensa da Universidade de Coimbra eBooks
  • "Dinâmicas de (investig)ação em contextos de promoção da língua portuguesa" (2021) published by RIA-UA

Best Publications

  • Plant diversity and productivity experiments in european grasslands

    A. Hector;Bernhard Schmid;Carl Beierkuhnlein;M. C. Caldeira

  • Metal hyperaccumulation in plants: Biodiversity prospecting for phytoremediation technology

    Majeti Narasimha Vara Prasad;Helena Maria de Oliveira Freitas

  • Plant growth promoting rhizobacteria and endophytes accelerate phytoremediation of metalliferous soils

    Y. Ma;M.N.V. Prasad;M. Rajkumar;H. Freitas

  • Perspectives of plant-associated microbes in heavy metal phytoremediation.

    M. Rajkumar;S. Sandhya;M.N.V. Prasad;H. Freitas

  • Drought and Salinity Stress Responses and Microbe-Induced Tolerance in Plants.

    Ying Ma;Maria Celeste Dias;Helena Freitas

  • Beneficial role of bacterial endophytes in heavy metal phytoremediation.

    Ying Ma;Mani Rajkumar;Chang Zhang;Helena Freitas

  • Assessing the effects of land-use change on plant traits, communities and ecosystem functioning in grasslands: a standardized methodology and lessons from an application to 11 European sites.

    Eric Garnier;Sandra Lavorel;Pauline Ansquer;Helena Castro

  • ECOSYSTEM EFFECTS OF BIODIVERSITY MANIPULATIONS IN EUROPEAN GRASSLANDS

    E. M. Spehn;A. Hector;J. Joshi;M. Scherer-Lorenzen

  • Biochemical and Molecular Mechanisms of Plant-Microbe-Metal Interactions: Relevance for Phytoremediation.

    Ying Ma;Rui S. Oliveira;Helena Freitas;Chang Zhang

  • No Consistent Effect of Plant Diversity on Productivity

    M. A. Huston;L. W. Aarssen;M. P. Austin;B. S. Cade

  • Eutrophication and macroalgal blooms in temperate and tropical coastal waters: nutrient enrichment experiments with Ulva spp.

    Mirta Teichberg;Sophia E. Fox;Ylva S. Olsen;Ivan Valiela

  • Leaf traits capture the effects of land use changes and climate on litter decomposability of grasslands across Europe

    Claire Fortunel;Eric Garnier;Richard Joffre;Elena Kazakou

  • Inoculation of plant growth promoting bacterium Achromobacter xylosoxidans strain Ax10 for the improvement of copper phytoextraction by Brassica juncea

    Ying Ma;Mani Rajkumar;Helena Freitas

  • The hyperaccumulator Sedum plumbizincicola harbors metal-resistant endophytic bacteria that improve its phytoextraction capacity in multi-metal contaminated soil.

    Ying Ma;Ying Ma;Rui S. Oliveira;Fengjiao Nai;Mani Rajkumar

  • Short- and long-term impacts of Acacia longifolia invasion on the belowground processes of a Mediterranean coastal dune ecosystem

    Elizabete Marchante;Elizabete Marchante;Annelise Kjøller;Sten Struwe;Helena Freitas

  • Plant community tolerant to trace elements growing on the degraded soils of São Domingos mine in the south east of Portugal: environmental implications.

    H Freitas;M.N.V Prasad;J Pratas

  • Improvement of plant growth and nickel uptake by nickel resistant-plant-growth promoting bacteria.

    Ying Ma;Mani Rajkumar;Helena Freitas

  • Testing for the survey mode effect on contingent valuation data quality: A case study of web based versus in-person interviews

    Cristina Marta-Pedroso;Cristina Marta-Pedroso;Helena Freitas;Tiago Domingos

  • Climate change driven plant-metal-microbe interactions.

    Mani Rajkumar;Majeti Narasimha Vara Prasad;Sandhya Swaminathan;Helena Freitas

  • Removal of toxic metals from solution by leaf, stem and root phytomass of Quercus ilex L. (holly oak)

    M.N.V Prasad;H Freitas

Frequent Co-Authors

Susana Rodríguez-Echeverría
Susana Rodríguez-Echeverría University of Coimbra
Ying Ma
Ying Ma Agricultural University of Hebei
Cristina Nabais
Cristina Nabais University of Coimbra
Majeti Narasimha Vara Prasad
Majeti Narasimha Vara Prasad University of Hyderabad
Miroslav Vosátka
Miroslav Vosátka Czech Academy of Sciences
Michael Scherer-Lorenzen
Michael Scherer-Lorenzen University of Freiburg
Panayiotis G. Dimitrakopoulos
Panayiotis G. Dimitrakopoulos University of the Aegean
Jasmin Joshi
Jasmin Joshi University of Applied Sciences Rapperswil
Carl Beierkuhnlein
Carl Beierkuhnlein University of Bayreuth
Maria C. Caldeira
Maria C. Caldeira University of Lisbon

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