John S. Gilleard

8.8k total citations · 2 hit papers
141 papers, 5.2k citations indexed

About

John S. Gilleard is a scholar working on Small Animals, Ecology and Parasitology. According to data from OpenAlex, John S. Gilleard has authored 141 papers receiving a total of 5.2k indexed citations (citations by other indexed papers that have themselves been cited), including 102 papers in Small Animals, 88 papers in Ecology and 68 papers in Parasitology. Recurrent topics in John S. Gilleard's work include Helminth infection and control (102 papers), Parasite Biology and Host Interactions (86 papers) and Parasites and Host Interactions (46 papers). John S. Gilleard is often cited by papers focused on Helminth infection and control (102 papers), Parasite Biology and Host Interactions (86 papers) and Parasites and Host Interactions (46 papers). John S. Gilleard collaborates with scholars based in Canada, United Kingdom and United States. John S. Gilleard's co-authors include Elizabeth Redman, Russell W. Avramenko, Douglas D. Colwell, Rao Zahid Abbas, F. Jackson, Robin N. Beech, J. David Barry, David J. Bartley, James D. McGhee and Zafar Iqbal and has published in prestigious journals such as Proceedings of the National Academy of Sciences, SHILAP Revista de lepidopterología and Bioinformatics.

In The Last Decade

John S. Gilleard

135 papers receiving 5.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Acaricide resistance in cattle ticks and approaches to its management: The state of play

2014 318 citations John S. Gilleard et al. profile →
World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) guideline for diagnosing anthelmintic resistance using the faecal egg count reduction test in ruminants, horses and swine

2023 103 citations Ray M. Kaplan, John S. Gilleard et al. profile →

Peers

Countries citing papers authored by John S. Gilleard

Since Specialization

Citations

This map shows the geographic impact of John S. Gilleard's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John S. Gilleard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John S. Gilleard more than expected).

Fields of papers citing papers by John S. Gilleard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John S. Gilleard. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John S. Gilleard. The network helps show where John S. Gilleard may publish in the future.

Co-authorship network of co-authors of John S. Gilleard

This figure shows the co-authorship network connecting the top 25 collaborators of John S. Gilleard. A scholar is included among the top collaborators of John S. Gilleard based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John S. Gilleard. John S. Gilleard is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	High frequency of benzimidazole resistance polymorphisms and age-class differences in trichostrongyle nematodes of ranched bison from the south-central United States 2025 ·International Journal for Parasitology Drugs and Drug Resistance ·(unknown), Elizabeth Redman, (unknown), (unknown), John S. Gilleard, Guilherme G. Verocai	1
2	Prevalence of gastrointestinal parasites in small ruminants in Grenada, West Indies 2025 ·Veterinary Parasitology Regional Studies and Reports ·(unknown), (unknown), Ray M. Kaplan, C. N. L. Macpherson, (unknown), Paul J. Fields, John S. Gilleard, Rhonda Pinckney	0
3	Mixed strongyle parasite infections vary across host age and space in a population of feral horses 2024 ·Parasitology ·(unknown), Elizabeth Redman, Stefan Gavriliuc, Jennifer L. Bellaw, John S. Gilleard, Philip D. McLoughlin, Jocelyn Poissant	5
4	Integration of ITS-2 rDNA nemabiome metabarcoding with Fecal Egg Count Reduction Testing (FECRT) reveals ivermectin resistance in multiple gastrointestinal nematode species, including hypobiotic Ostertagia ostertagi, in western Canadian beef cattle 2023 ·International Journal for Parasitology Drugs and Drug Resistance ·(unknown), Fabienne D. Uehlinger, (unknown), Elizabeth Redman, John Campbell, (unknown), (unknown), Colleen M Pollock, (unknown), G.B. Penner, John S. Gilleard	4
5	Molecular evidence of widespread benzimidazole drug resistance in Ancylostoma caninum from domestic dogs throughout the USA and discovery of a novel β-tubulin benzimidazole resistance mutation 2023 ·PLoS Pathogens ·(unknown), Pablo D. Jimenez Castro, (unknown), (unknown), Rebecca Chen, Elizabeth Redman, (unknown), James B. Collins, James S. Fraser, Erik C. Andersen, Ray M. Kaplan, John S. Gilleard	45
6	Deep amplicon sequencing highlights low intra-host genetic variability of Echinococcus multilocularis and high prevalence of the European-type haplotypes in coyotes and red foxes in Alberta, Canada 2021 ·PLoS neglected tropical diseases ·(unknown), (unknown), Rebecca Chen, John S. Gilleard, Marco Musiani, Kathreen E. Ruckstuhl, Alessandro Massolo	14
7	Characterization of the β-tubulin gene family in Ascaris lumbricoides and Ascaris suum and its implication for the molecular detection of benzimidazole resistance 2021 ·PLoS neglected tropical diseases ·(unknown), Russell W. Avramenko, (unknown), James D. Wasmuth, Shaali Ame, Mio Ayana, Martha Betson, Piet Cools, Daniel Dana, (unknown), Zeleke Mekonnen, (unknown), (unknown), Johnny Vlaminck, Matthew L. Workentine, Bruno Levecke, John S. Gilleard, Peter Geldhof	17
8	Molecular characterization of Sarcocystis spp. as a cause of protozoal encephalitis in a free-ranging black bear 2021 ·Journal of Veterinary Diagnostic Investigation ·(unknown), (unknown), (unknown), Elizabeth Redman, John S. Gilleard, Nicole M. Nemeth, Jamie L. Rothenburger	0
9	Metabarcoding in two isolated populations of wild roe deer (Capreolus capreolus) reveals variation in gastrointestinal nematode community composition between regions and among age classes 2021 ·Parasites & Vectors ·(unknown), Elizabeth Redman, (unknown), Janneke Wit, (unknown), François Débias, Jeanne Duhayer, (unknown), (unknown), Gilles Capron, (unknown), Benjamin Rey, Glenn Yannic, John S. Gilleard, Gilles Bourgoin	28
10	Treatment efficacy and re-infection rates of soil-transmitted helminths following mebendazole treatment in schoolchildren, Northwest Ethiopia 2020 ·Tropical Medicine and Health ·Ayalew Jejaw Zeleke, Abebe Genetu Bayih, (unknown), John S. Gilleard	16
11	MIPhy: identify and quantify rapidly evolving members of large gene families 2018 ·PeerJ ·(unknown), John S. Gilleard, James D. Wasmuth	8
12	Epidemiology of gastrointestinal nematode infections in grazing yearling beef cattle in Saskatchewan. 2017 ·PubMed ·Murray Jelinski, John S. Gilleard, (unknown), (unknown), Cheryl Waldner	6
13	Negative covariance between parasite load and body condition in a population of feral horses 2016 ·Parasitology ·Lucie Debeffe, Philip D. McLoughlin, Sarah A. Medill, (unknown), (unknown), Todd Shury, Brent Wagner, Emily Jenkins, John S. Gilleard, Jocelyn Poissant	61
14	Survey of gastrointestinal nematode parasites in Saskatchewan beef herds. 2016 ·PubMed ·Murray Jelinski, (unknown), John S. Gilleard, Cheryl Waldner, (unknown)	8
15	Genetic evidence for the spread of a benzimidazole resistance mutation across southern India from a single origin in the parasitic nematode Haemonchus contortus 2015 ·International Journal for Parasitology ·Umer Chaudhry, Elizabeth Redman, M. Raman, John S. Gilleard	80
16	Molecular evidence shows that the liver fluke Fasciola gigantica is the predominant Fasciola species in ruminants from Pakistan 2015 ·Journal of Helminthology ·Umer Chaudhry, (unknown), Muhammad Zubair Shabbir, Muhammad Shafee, Kamran Ashraf, Tahir Yaqub, John S. Gilleard	17
17	A case of canine Angiostrongylus vasorum in Scotland confirmed by PCR and sequence analysis 2009 ·Journal of Small Animal Practice ·Jenny Helm, John S. Gilleard, Mark W. Jackson, (unknown), R. Bell	45
18	Microsatellite analysis reveals marked genetic differentiation between Haemonchus contortus laboratory isolates and provides a rapid system of genetic fingerprinting 2007 ·International Journal for Parasitology ·Elizabeth Redman, (unknown), Victoria Grillo, Judith A. Smith, F. Jackson, John S. Gilleard	81
19	TheCaenorhabditis elegansGATA factorelt-1is essential for differentiation and maintenance of hypodermal seam cells and for normal locomotion 2005 ·Journal of Cell Science ·Judith A. Smith, (unknown), John S. Gilleard	20
20	cis Regulatory Requirements for Hypodermal Cell-Specific Expression of the Caenorhabditis elegans Cuticle Collagen Gene dpy-7 1997 ·Molecular and Cellular Biology ·John S. Gilleard, J. David Barry, Iain L. Johnstone	162

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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