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Alan W. Walker

D-Index & Metrics

Biology and Biochemistry

D-Index
67
Citations
26712
World Ranking
8057
National Ranking
616

Alan W. Walker publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Alan W. Walker sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 191 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Alan W. Walker D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Alan W. Walker sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 67 D-Index — 59th percentile

59% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Alan W. Walker is affiliated with the University of Aberdeen in the United Kingdom and specializes in research spanning biochemistry, genetics, molecular biology, and medicine. Their work includes a significant focus on molecular biology, infectious diseases, food science, nutrition and dietetics, and physiology.

The research topics covered in Walker's publications primarily address gut microbiota and health, probiotics and fermented foods, antifungal resistance and susceptibility, diet and metabolism studies, Clostridium difficile and Clostridium perfringens research, genomics and phylogenetic studies, and child nutrition and water access.

Walker has contributed to several notable scientific papers, including:

  • The impact of the Fungus-Host-Microbiota interplay upon Candida albicans infections: current knowledge and new perspectives, 2020, published in FEMS Microbiology Reviews
  • Questioning the fetal microbiome illustrates pitfalls of low-biomass microbial studies, 2023, published in Nature
  • Lung function and microbiota diversity in cystic fibrosis, 2020, published in Microbiome
  • Pivotal Roles for pH, Lactate, and Lactate-Utilizing Bacteria in the Stability of a Human Colonic Microbial Ecosystem, 2020, published in mSystems
  • Human microbiome myths and misconceptions, 2023, published in Nature Microbiology

The frequent collaborators in Walker's work include Sylvia H. Duncan, Alistair J. P. Brown, Petra Louis, Liviana Ricci, and Julian Parkhill.

Walker's research has appeared consistently in a range of publication venues, notably:

  • BMJ Paediatrics Open
  • bioRxiv (Cold Spring Harbor Laboratory)
  • Nature Microbiology
  • Gut Microbiome
  • Proceedings of The Nutrition Society

Best Publications

  • Reagent and laboratory contamination can critically impact sequence-based microbiome analyses

    Susannah J Salter;Michael J Cox;Elena M Turek;Szymon T Calus

  • Dominant and diet-responsive groups of bacteria within the human colonic microbiota.

    Alan W Walker;Jennifer Ince;Sylvia H Duncan;Lucy M Webster

  • Shotgun metagenomics, from sampling to analysis

    Christopher Quince;Alan W Walker;Jared T Simpson;Jared T Simpson;Nicholas J Loman

  • Salmonella enterica serovar typhimurium exploits inflammation to compete with the intestinal microbiota

    Bärbel Stecher;Riccardo Robbiani;Alan W. Walker;Astrid M. Westendorf

  • High-throughput clone library analysis of the mucosa-associated microbiota reveals dysbiosis and differences between inflamed and non-inflamed regions of the intestine in inflammatory bowel disease

    Alan W Walker;Jeremy D Sanderson;Carol Churcher;Gareth C Parkes

  • pH and peptide supply can radically alter bacterial populations and short-chain fatty acid ratios within microbial communities from the human colon.

    Alan W Walker;Sylvia H Duncan;E Carol McWilliam Leitch;Matthew W Child

  • Intestinal colonization resistance

    Trevor D Lawley;Alan W Walker

  • Sequencing ancient calcified dental plaque shows changes in oral microbiota with dietary shifts of the Neolithic and Industrial revolutions

    Christina J Adler;Keith Dobney;Laura S Weyrich;John Kaidonis

  • Targeted Restoration of the Intestinal Microbiota with a Simple, Defined Bacteriotherapy Resolves Relapsing Clostridium difficile Disease in Mice

    Trevor D. Lawley;Simon Clare;Alan W. Walker;Mark D. Stares

  • Compendium of 4,941 rumen metagenome-assembled genomes for rumen microbiome biology and enzyme discovery

    Robert D. Stewart;Marc D. Auffret;Amanda Warr;Alan W. Walker

  • Assembly of 913 microbial genomes from metagenomic sequencing of the cow rumen

    Robert D. Stewart;Marc D. Auffret;Amanda Warr;Andrew H. Wiser

  • Gut inflammation can boost horizontal gene transfer between pathogenic and commensal Enterobacteriaceae.

    Bärbel Stecher;Rémy Denzler;Lisa Maier;Florian Bernet

  • The Intestinal Microbiota Contributes to the Ability of Helminths to Modulate Allergic Inflammation

    Mario M. Zaiss;Alexis Rapin;Luc Lebon;Lalit Kumar Dubey

  • Antibiotic treatment of Clostridium difficile carrier mice triggers a supershedder state, spore-mediated transmission, and severe disease in immunocompromised hosts.

    Trevor D. Lawley;Simon Clare;Alan W. Walker;David Goulding

  • Modulation of the human gut microbiota by dietary fibres occurs at the species level.

    Wing Sun Faith Chung;Alan W. Walker;Alan W. Walker;Petra Louis;Julian Parkhill

  • Diarrhea in young children from low-income countries leads to large-scale alterations in intestinal microbiota composition

    Mihai Pop;Alan W Walker;Joseph Paulson;Brianna Lindsay

  • The Transcription Factor T-bet Regulates Intestinal Inflammation Mediated by Interleukin-7 Receptor+ Innate Lymphoid Cells

    Nick Powell;Nick Powell;Nick Powell;Alan W. Walker;Emilie Stolarczyk;James B. Canavan;James B. Canavan;James B. Canavan

  • The Impact of Different DNA Extraction Kits and Laboratories upon the Assessment of Human Gut Microbiota Composition by 16S rRNA Gene Sequencing

    Nicholas A. Kennedy;Alan W. Walker;Susan H. Berry;Sylvia H. Duncan

  • Selective Colonization of Insoluble Substrates by Human Faecal Bacteria

    E Carol McWilliam Leitch;Alan W Walker;Sylvia H Duncan;Grietje Holtrop

  • LHCb Trigger System : Technical Design Report

    R. Antunes Nobrega;A. Franca Barbosa;I. Bediaga;G. Cernicchiaro

Frequent Co-Authors

Julian Parkhill
Julian Parkhill University of Cambridge
J. R. Batley
J. R. Batley University of Western Australia
David Coward
David Coward University of Western Australia
Massimiliano Fiorini
Massimiliano Fiorini University of Ferrara

External Links

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Related Online Degrees & Career Pathways

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Best Scientists Citing Alan W. Walker

Harry J. Flint

Harry J. Flint

University of Aberdeen

Publications: 96

Andrzej J. Buras

Andrzej J. Buras

Technical University of Munich

Publications: 80

Willem M. de Vos

Willem M. de Vos

Wageningen University & Research

Publications: 68

Sylvia H. Duncan

Sylvia H. Duncan

University of Aberdeen

Publications: 65

Rob Knight

Rob Knight

University of California, San Diego

Publications: 57

Wolf-Dietrich Hardt

Wolf-Dietrich Hardt

ETH Zurich

Publications: 54

Vincent B. Young

Vincent B. Young

University of Michigan–Ann Arbor

Publications: 46

Petra Louis

Petra Louis

University of Aberdeen

Publications: 45

Glenn R. Gibson

Glenn R. Gibson

University of Reading

Publications: 44

Andreas J. Bäumler

Andreas J. Bäumler

University of California, Davis

Publications: 43

Paul D. Cotter

Paul D. Cotter

University College Cork

Publications: 41

Bärbel Stecher

Bärbel Stecher

Ludwig-Maximilians-Universität München

Publications: 40

Eric G. Pamer

Eric G. Pamer

Memorial Sloan Kettering Cancer Center

Publications: 39

Geraint B. Rogers

Geraint B. Rogers

Flinders University

Publications: 38

Fredrik Bäckhed

Fredrik Bäckhed

University of Gothenburg

Publications: 36

Nicola Segata

Nicola Segata

University of Trento

Publications: 36

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