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Peter H. Janssen

Peter H. Janssen

AgResearch
New Zealand

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Biology and Biochemistry
New Zealand
2026

D-Index & Metrics

Biology and Biochemistry

D-Index
79
Citations
26726
World Ranking
4251
National Ranking
9

Peter H. Janssen 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 Peter H. Janssen 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: 230 publications — 61st percentile

61% of scientists in this discipline score the same or lower.

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

Peter H. Janssen 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 Peter H. Janssen 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: 79 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in New Zealand Leader Award
  • 2023 - Research.com Biology and Biochemistry in New Zealand Leader Award
  • 2022 - Research.com Biology and Biochemistry in New Zealand Leader Award

Overview

Peter H. Janssen is affiliated with AgResearch in New Zealand and specializes in research spanning Agricultural and Biological Sciences as well as Biochemistry, Genetics and Molecular Biology. Their work frequently addresses topics related to ruminant nutrition, digestive physiology, and genetic traits in livestock.

Their research covers the following main topics:

  • Ruminant Nutrition and Digestive Physiology
  • Genetic and phenotypic traits in livestock
  • Anaerobic Digestion and Biogas Production
  • Gut microbiota and health
  • Plant and fungal interactions
  • Genomics and Phylogenetic Studies
  • Bioenergy crop production and management

Janssen's publications have appeared frequently in several scientific venues, including:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Scientific Reports
  • Research Square (Research Square)
  • Animal Microbiome
  • Nature Communications

Recent papers authored or co-authored by Janssen include:

  • "Hydrogen and formate production and utilisation in the rumen and the human colon," 2022, Animal Microbiome
  • "A restriction enzyme reduced representation sequencing approach for low-cost, high-throughput metagenome profiling," 2020, PLoS ONE
  • "Electron flow: key to mitigating ruminant methanogenesis," 2022, Trends in Microbiology
  • "Patterns and determinants of the global herbivorous mycobiome," 2023, Nature Communications
  • "Genetic parameters for residual feed intake, methane emissions, and body composition in New Zealand maternal sheep," 2022, Frontiers in Genetics

Janssen collaborates frequently with a group of researchers who appear recurrently as co-authors. These include:

  • Arjan Jonker
  • Suzanne J. Rowe
  • Graeme T. Attwood
  • John C. McEwan
  • Christina D. Moon

The scientist's subfields of study reflect a diverse engagement with topics in the life sciences, including:

  • Agronomy and Crop Science
  • Molecular Biology
  • Genetics
  • Building and Construction
  • Ecology, Evolution, Behavior and Systematics

Best Publications

  • Identifying the Dominant Soil Bacterial Taxa in Libraries of 16S rRNA and 16S rRNA Genes

    Peter H. Janssen

  • Rumen microbial community composition varies with diet and host, but a core microbiome is found across a wide geographical range

    Gemma Henderson;Faith Cox;Siva Ganesh;Arjan Jonker

  • Three Genomes from the Phylum Acidobacteria Provide Insight into the Lifestyles of These Microorganisms in Soils

    Naomi L. Ward;Jean F. Challacombe;Jean F. Challacombe;Peter H. Janssen;Peter H. Janssen;Bernard Henrissat

  • Improved culturability of soil bacteria and isolation in pure culture of novel members of the divisions Acidobacteria, Actinobacteria, Proteobacteria, and Verrucomicrobia

    Peter H. Janssen;Penelope S. Yates;Bronwyn E. Grinton;Paul M. Taylor

  • Diversity and structure of the methanogenic community in anoxic rice paddy soil microcosms as examined by cultivation and direct 16S rRNA gene sequence retrieval.

    Regine Großkopf;Peter H. Janssen;Werner Liesack

  • Influence of hydrogen on rumen methane formation and fermentation balances through microbial growth kinetics and fermentation thermodynamics

    Peter H. Janssen

  • Long-term dynamic modeling of global population and built-up area in a spatially explicit way: HYDE 3.1

    Kees Klein Goldewijk;Arthur Beusen;Peter Janssen

  • Structure of the archaeal community of the rumen.

    Peter H. Janssen;Marek Kirs

  • Laboratory Cultivation of Widespread and Previously Uncultured Soil Bacteria

    Shayne J. Joseph;Philip Hugenholtz;Parveen Sangwan;Catherine A. Osborne

  • Effects of Growth Medium, Inoculum Size, and Incubation Time on Culturability and Isolation of Soil Bacteria

    Kathryn E. R. Davis;Shayne J. Joseph;Peter H. Janssen

  • Cultivation of globally distributed soil bacteria from phylogenetic lineages previously only detected in cultivation-independent surveys

    Michelle Sait;Philip Hugenholtz;Peter H. Janssen

  • Methane yield phenotypes linked to differential gene expression in the sheep rumen microbiome

    Weibing Shi;Christina D. Moon;Sinead C. Leahy;Dongwan Kang;Dongwan Kang

  • Simultaneous amplicon sequencing to explore co-occurrence patterns of bacterial, archaeal and eukaryotic microorganisms in rumen microbial communities.

    Sandra Kittelmann;Sandra Kittelmann;Henning Seedorf;William A. Walters;Jose C. Clemente

  • The genome sequence of the rumen methanogen Methanobrevibacter ruminantium reveals new possibilities for controlling ruminant methane emissions.

    Sinead C. Leahy;William J. Kelly;Eric Altermann;Ron S. Ronimus

  • Effect of DNA Extraction Methods and Sampling Techniques on the Apparent Structure of Cow and Sheep Rumen Microbial Communities

    Gemma Henderson;Faith Cox;Sandra Kittelmann;Vahideh Heidarian Miri

  • Two different bacterial community types are linked with the low-methane emission trait in sheep.

    Sandra Kittelmann;Cesar S. Pinares-Patiño;Henning Seedorf;Michelle R. Kirk

  • Strategies to reduce methane emissions from farmed ruminants grazing on pasture.

    Bryce M. Buddle;Michel Denis;Graeme T. Attwood;Eric Altermann

  • Rumen metagenome and metatranscriptome analyses of low methane yield sheep reveals a Sharpea-enriched microbiome characterised by lactic acid formation and utilisation

    Janine Kamke;Sandra Kittelmann;Priya Soni;Yang Li

  • Rumen microbial (meta)genomics and its application to ruminant production

    D. P. Morgavi;W. J. Kelly;P. H. Janssen;G. T. Attwood

  • Effect of pH on Isolation and Distribution of Members of Subdivision 1 of the Phylum Acidobacteria Occurring in Soil

    Michelle Sait;Kathryn E. R. Davis;Peter H. Janssen

Frequent Co-Authors

Arthur C. Petersen
Arthur C. Petersen University College London
Hugh W. Morgan
Hugh W. Morgan University of Waikato
Bernhard Schink
Bernhard Schink University of Konstanz
John C. McEwan
John C. McEwan AgResearch
Werner Liesack
Werner Liesack Max Planck Society
Michael L. Dyall-Smith
Michael L. Dyall-Smith University of Melbourne
David Pacheco
David Pacheco New Zealand Agricultural Greenhouse Gas Research Centre (NZAGRC)
James S. Risbey
James S. Risbey Illinois Tool Works (United States)
C. S. Pinares-Patiño
C. S. Pinares-Patiño AgResearch
Jeroen P. van der Sluijs
Jeroen P. van der Sluijs University of Bergen

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Publications: 40

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Publications: 39

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