2026 John J. Welch: Ecology and Evolution Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Ecology and Evolution	48	4213	4064	1467	1404	77	9243

Overview

John J. Welch is affiliated with Washington University in St. Louis in the United States. Their primary research focus lies in the field of Medicine, with significant contributions in Genetics, Epidemiology, Ecology, Infectious Diseases, and Public Health, Environmental and Occupational Health.

The scientist's work spans several key topics including Sepsis Diagnosis and Treatment, Genetic Diversity and Population Structure, Evolution and Genetic Dynamics, Antimicrobial Resistance in Staphylococcus, Streptococcal Infections and Treatments, Microbial Infections and Disease Research, and Cardiac, Anesthesia and Surgical Outcomes.

Recent notable papers include:

A 2-million-year-old ecosystem in Greenland uncovered by environmental DNA, 2022, Nature
Emergence of methicillin resistance predates the clinical use of antibiotics, 2022, Nature
Life and Death of Selfish Genes: Comparative Genomics Reveals the Dynamic Evolution of Cytoplasmic Incompatibility, 2020, Molecular Biology and Evolution
Genome Reduction Is Associated with Bacterial Pathogenicity across Different Scales of Temporal and Ecological Divergence, 2020, Molecular Biology and Evolution
Large-scale genomic analysis of antimicrobial resistance in the zoonotic pathogen Streptococcus suis, 2021, BMC Biology

Frequent co-authors in their research include:

Hilde Schneemann
Gemma G. R. Murray
Lucy A. Weinert
Bianca De Sanctis
Kate Honeyford

The scientist has published repeatedly in key venues such as bioRxiv (Cold Spring Harbor Laboratory), Nature, Molecular Biology and Evolution, Critical Care Medicine, and Evolution. Publications in bioRxiv number as many as eight, followed by two each in Nature, Molecular Biology and Evolution, Critical Care Medicine, and Evolution.

Best Publications

Phylogeography Takes a Relaxed Random Walk in Continuous Space and Time

Philippe Lemey;Andrew Rambaut;Andrew Rambaut;John J. Welch;Marc A. Suchard

813
Citations
The coupling hypothesis: why genome scans may fail to map local adaptation genes.

Nicolas Bierne;Nicolas Bierne;John Welch;Etienne Loire;François Bonhomme;François Bonhomme

594
Citations
The incidence of bacterial endosymbionts in terrestrial arthropods

Lucy A. Weinert;Eli V. Araujo-Jnr;Muhammad Z. Ahmed;John J. Welch

582
Citations
The evolution and genetics of virus host shifts.

Ben Longdon;Michael A. Brockhurst;Colin A. Russell;John J. Welch

368
Citations
A 2-million-year-old ecosystem in Greenland uncovered by environmental DNA

Unknown

346
Citations
Ancient Hybridization and an Irish Origin for the Modern Polar Bear Matriline

Ceiridwen J. Edwards;Marc A. Suchard;Philippe Lemey;John J. Welch

313
Citations
Molecular dating when rates vary.

John J. Welch;Lindell Bromham

311
Citations
A Generation Time Effect on the Rate of Molecular Evolution in Invertebrates

Jessica A. Thomas;Jessica A. Thomas;Jessica A. Thomas;John J. Welch;John J. Welch;Robert Lanfear;Robert Lanfear;Lindell Bromham;Lindell Bromham

296
Citations
Quantifying Adaptive Evolution in the Drosophila Immune System

Darren J. Obbard;John J. Welch;Kang-Wook Kim;Kang-Wook Kim;Francis M. Jiggins

289
Citations
Modularity and the cost of complexity.

John J. Welch;David Waxman

243
Citations
Population Genomics of the Wolbachia Endosymbiont in Drosophila melanogaster

Mark F. Richardson;Lucy A. Weinert;John J. Welch;Raquel S. Linheiro

227
Citations
Correlates of substitution rate variation in mammalian protein-coding sequences

John J Welch;John J Welch;Olaf R P Bininda-Emonds;Lindell Bromham;Lindell Bromham

223
Citations
Watching the clock: Studying variation in rates of molecular evolution between species

Robert Lanfear;John J. Welch;Lindell Bromham

216
Citations
Estimating the Genomewide Rate of Adaptive Protein Evolution in Drosophila

John J Welch

204
Citations
Pervasive selection or is it…? why are FST outliers sometimes so frequent?

Nicolas Bierne;Nicolas Bierne;Denis Roze;Denis Roze;John J. Welch

164
Citations
There is no universal molecular clock for invertebrates, but rate variation does not scale with body size.

Jessica A. Thomas;John J. Welch;Megan Woolfit;Lindell Bromham

137
Citations
Capturing the cloud of diversity reveals complexity and heterogeneity of MRSA carriage, infection and transmission

Gavin K. Paterson;Gavin K. Paterson;Ewan M. Harrison;Gemma G. R. Murray;John J. Welch

136
Citations
The effect of genetic structure on molecular dating and tests for temporal signal.

Gemma G. R. Murray;Fang Wang;Ewan M. Harrison;Gavin K. Paterson;Gavin K. Paterson

134
Citations
Life and Death of Selfish Genes: Comparative Genomics Reveals the Dynamic Evolution of Cytoplasmic Incompatibility

Julien Martinez;Julien Martinez;Lisa Klasson;John J Welch;Francis M Jiggins

133
Citations
Metabolic rate does not calibrate the molecular clock

Robert Lanfear;Jessica A. Thomas;John J. Welch;Thomas Brey

129
Citations
Reduced Effectiveness of Selection Caused by a Lack of Recombination

Andrea J. Betancourt;John J. Welch;Brian Charlesworth

124
Citations
Molecular dating of human-to-bovid host jumps by Staphylococcus aureus reveals an association with the spread of domestication

Lucy A. Weinert;Lucy A. Weinert;John J. Welch;John J. Welch;Marc A. Suchard;Philippe Lemey

113
Citations

Frequent Co-Authors

Nicolas Bierne University of Montpellier

Lindell Bromham Australian National University

Andrew Rambaut University of Edinburgh

Francis M. Jiggins University of Cambridge

Sharon J. Peacock University of Cambridge

Julian Parkhill University of Cambridge

Matthew T. G. Holden University of St Andrews

Mark A. Holmes University of Cambridge

Simon R. Harris Wellcome Sanger Institute

Marcelo Gottschalk University of Montreal

External Links

Personal website of John J. Welch

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