Author

David A. Walsh

Concordia UniversityORCID 0000-0002-9951-5447Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Assay:metagenomics· 5 Approach:statistical model· 4 Research Focus:ecology & biodiversity· 3 Organism:bacteria (other)· 2 Research Focus:benchmarking· 1 Research Focus:cell type annotation· 1 Research Focus:database / resource· 1 Approach:experimental assay· 1

Frequent Co-Authors

Susan McLatchie· 2 shared Adrienne B. NarroweiD· 1 shared Alexander J. ProbstiD· 1 shared Alexander SczyrbaiD· 1 shared Anaïs OlivaiD· 1 shared Annegret KohleriD· 1 shared Antônio Pedro CamargoiD· 1 shared Armand SéguiniD· 1 shared

Activity by Year

2022-2026 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 22 mutual co-author links

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Curved chords = mutual co-authorship

2 shared papersMicrobiology

Susan McLatchie

Mutual co-authors in cluster

Author profile →

5 papers

Recent·Most cited

Evidence of an acetone carboxylation pathway in photoheterotrophic bacteria from the Arctic Ocean

Susan McLatchie, Sara Palestini, Asher Woodhead, Tony Gutiérrez, David A. Walsh

The paper identifies an acetone carboxylation pathway in Arctic Ocean photoheterotrophic bacteria, linking it to a Gammaproteobacteria species and its ecological significance.

Nature Communications · Sep 26, 2026Peer-reviewedMicrobiology

Metagenomic Discovery of Neutral Lipid Metabolism Pathways in the Arctic Ocean Microbiomes Suggests a Potential New Role in Survival and Oceanic Carbon Cycling

Thomas Grevesse, David A. Walsh, Susan McLatchie, Vera E. Onana

The paper investigates neutral lipid metabolism in Arctic Ocean microbiomes, identifying new microbial roles in carbon cycling and survival strategies.

bioRxiv · Aug 5, 2026 · PreprintMicrobiology

Changing Pacific salmon nursery lake ecosystem dynamics over centuries to millennia: insights from sedimentary DNA metabarcoding

Yuanyu Cheng, David A. Walsh, Joanna Gauthier, Daniel T. Selbie, Irene Gregory‐Eaves

This study uses sedimentary DNA metabarcoding to track changes in lake ecosystems over centuries, identifying shifts in algal communities and potential drivers like land-use changes and climate factors.

Environmental DNA · Jul 1, 2026Peer-reviewedEcology

A resistome survey across hundreds of freshwater bacterial communities reveals the impacts of veterinary and human antibiotics use

Susanne A. Kraemer, Naíla Barbosa da Costa, Anaïs Oliva, Yannick Huot, David A. Walsh

This study surveys the resistome in 350 Canadian lakes to assess how human and veterinary antibiotic use affects antibiotic resistance gene diversity.

Frontiers in Microbiology · Oct 6, 2022Peer-reviewedGenomics

A five-fold expansion of the global RNA virome reveals multiple new clades of RNA bacteriophages

Uri Neri, Yuri I. Wolf, Simon Roux, Antônio Pedro Camargo, Benjamin Lee, Darius Kazlauskas, I. Min Chen, Natalia Ivanova, Lisa Zeigler Allen, David Páez-Espino, Donald A. Bryant, Devaki Bhaya, Adrienne B. Narrowe, Alexander J. Probst, Alexander Sczyrba, , Vincent J. Denef

The paper expands the global RNA virome by five-fold, identifying new clades of RNA bacteriophages and revealing novel virus-host interactions.

Cell · Sep 28, 2022Peer-reviewedGenomics