2026 David A. Walsh: Environmental Sciences Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Environmental Sciences	46	6054	5809	260	246	108	8478

Overview

David A. Walsh is affiliated with Concordia University in Canada. Their research primarily focuses on Environmental Science, with substantial contributions to Biochemistry, Genetics and Molecular Biology. Within these broad fields, they concentrate on several subfields including Ecology, Molecular Biology, Health, Toxicology and Mutagenesis, Environmental Chemistry, and Oceanography.

The scientist's work spans multiple specialized topics. Key areas of research include Microbial Community Ecology and Physiology, Environmental DNA in Biodiversity Studies, Genomics and Phylogenetic Studies, Protist Diversity and Phylogeny, Methane Hydrates and Related Phenomena, Mercury Impact and Mitigation Studies, and Bacteriophages and Microbial Interactions.

David A. Walsh has published numerous papers in various reputable venues. Frequent publication outlets include:

bioRxiv (Cold Spring Harbor Laboratory)
Zenodo (CERN European Organization for Nuclear Research)
mSphere
Environmental Microbiology
Nature Microbiology

Some of their recent scientific papers are:

"Giant virus diversity and host interactions through global metagenomics", 2020, published in Nature
"Expansion of the global RNA virome reveals diverse clades of bacteriophages", 2022, published in Cell
"Lake Sedimentary DNA Research on Past Terrestrial and Aquatic Biodiversity: Overview and Recommendations", 2021, published in Quaternary
"Ecology of inorganic sulfur auxiliary metabolism in widespread bacteriophages", 2021, published in Nature Communications
"A large-scale assessment of lakes reveals a pervasive signal of land use on bacterial communities", 2020, published in The ISME Journal

Frequent collaborators include Susanne A. Kraemer, Rebecca E. Garner, Irene Gregory-Eaves, Vera E. Onana, and Yannick Huot. These coauthors have contributed collectively across various research projects, indicating established professional partnerships.

Best Publications

Lateral gene transfer and the origins of prokaryotic groups.

Boucher Y;Douady Cj;Papke Rt;Walsh Da

516
Citations
One More Step Toward a Warmer Arctic

Igor V. Polyakov;Agnieszka Beszczynska;Eddy C. Carmack;Igor A. Dmitrenko

436
Citations
Metagenome of a Versatile Chemolithoautotroph from Expanding Oceanic Dead Zones

David A. Walsh;Elena Zaikova;Charles G. Howes;Young C. Song

382
Citations
Variability and Trends of Air Temperature and Pressure in the Maritime Arctic, 1875–2000

Igor V. Polyakov;Roman V. Bekryaev;Roman V. Bekryaev;Genrikh V. Alekseev;Uma S. Bhatt

378
Citations
The genome of Salinibacter ruber: Convergence and gene exchange among hyperhalophilic bacteria and archaea

E. F. Mongodin;K. E. Nelson;S. Daugherty;R. T. DeBoy

367
Citations
Giant virus diversity and host interactions through global metagenomics

Frederik Schulz;Simon Roux;David Paez-Espino;Sean Jungbluth

362
Citations
Observationally based assessment of polar amplification of global warming

Igor V. Polyakov;Genrikh V. Alekseev;Roman V. Bekryaev;Uma Bhatt

325
Citations
Mapping climatological seasonal variations of surface currents in the tropical Atlantic using ship drifts

Philip L. Richardson;David Walsh

298
Citations
Variability of the Intermediate Atlantic Water of the Arctic Ocean over the Last 100 Years

I. V. Polyakov;G. V. Alekseev;L. A. Timokhov;U. S. Bhatt

293
Citations
Tracking Three Meddies with SOFAR Floats

P. L. Richardson;D. Walsh;L. Armi;Michael Schröder

257
Citations
Microbial community dynamics in a seasonally anoxic fjord: Saanich Inlet, British Columbia.

Elena Zaikova;David A. Walsh;Claire P. Stilwell;William W. Mohn

255
Citations
Ecology of inorganic sulfur auxiliary metabolism in widespread bacteriophages.

Kristopher Kieft;Zhichao Zhou;Rika E. Anderson;Alison Buchan

235
Citations
Long-Term Ice Variability in Arctic Marginal Seas

Igor V. Polyakov;Genrikh V. Alekseev;Roman V. Bekryaev;Roman V. Bekryaev;Uma S. Bhatt

226
Citations
Author Correction: A compendium of geochemical information from the Saanich Inlet water column

Mónica Torres-Beltrán;Alyse K. Hawley;David Capelle;Elena Zaikova

225
Citations
Lake Sedimentary DNA Research on Past Terrestrial and Aquatic Biodiversity : Overview and Recommendations

Eric Capo;Charline Giguet-Covex;Alexandra Rouillard;Kevin Nota

223
Citations
Toward a warmer Arctic Ocean: Spreading of the early 21st century Atlantic Water warm anomaly along the Eurasian Basin margins

Igor A. Dmitrenko;Igor A. Dmitrenko;Igor V. Polyakov;Sergey A. Kirillov;Leonid A. Timokhov

178
Citations
Linking metagenomics to aquatic microbial ecology and biogeochemical cycles

Hans‐Peter Grossart;Hans‐Peter Grossart;Ramon Massana;Katherine D. McMahon;David A. Walsh

161
Citations
Archaeal diversity along a soil salinity gradient prone to disturbance

David A. Walsh;R. Thane Papke;W. Ford Doolittle

151
Citations
Variations in Apparent Mixing Efficiency in the North Atlantic Central Water

Barry Ruddick;David Walsh;Neil Oakey

118
Citations
Metaproteomic analysis of a winter to spring succession in coastal northwest Atlantic Ocean microbial plankton

Anna A Georges;Heba El-Swais;Susanne E Craig;William K W Li

115
Citations
Towards a warmer Arctic Ocean: Spreading of the early 21st century Atlantic water warmer anomaly along the Eurasian Basin margins

Igor Dmitrenko;I. V. Polaykov;Sergey A. Kirillov;Leonid A. Timokhov

2
Citations

Frequent Co-Authors

Igor V. Polyakov University of Alaska Fairbanks

Steven J. Hallam University of British Columbia

Uma S. Bhatt University of Alaska Fairbanks

Harper L. Simmons University of Alaska Fairbanks

Hans-Peter Grossart University of Potsdam

Eddy C. Carmack Fisheries and Oceans Canada

W. Ford Doolittle Dalhousie University

Irene Gregory-Eaves McGill University

John Walsh University of Alaska Fairbanks

Eric Bapteste Sorbonne University

External Links

Personal website of David A. Walsh

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