Gregory Simpson

952 total citations · 1 hit paper
21 papers, 608 citations indexed

About

Gregory Simpson is a scholar working on Infectious Diseases, Ecology, Evolution, Behavior and Systematics and Agronomy and Crop Science. According to data from OpenAlex, Gregory Simpson has authored 21 papers receiving a total of 608 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Infectious Diseases, 6 papers in Ecology, Evolution, Behavior and Systematics and 6 papers in Agronomy and Crop Science. Recurrent topics in Gregory Simpson's work include Viral Infections and Vectors (6 papers), Animal Disease Management and Epidemiology (6 papers) and Vector-Borne Animal Diseases (6 papers). Gregory Simpson is often cited by papers focused on Viral Infections and Vectors (6 papers), Animal Disease Management and Epidemiology (6 papers) and Vector-Borne Animal Diseases (6 papers). Gregory Simpson collaborates with scholars based in South Africa, Belgium and United States. Gregory Simpson's co-authors include Darryn L. Knobel, Matthew Chersich, Glenda Gray, Brian Allwood, René English, Minh D. Pham, Quentin Eichbaum, Susannah Mayhew, Lee Fairlie and Stanley Lüchters and has published in prestigious journals such as Scientific Reports, Journal of Animal Science and Vaccine.

In The Last Decade

Gregory Simpson

21 papers receiving 591 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.

COVID-19 in Africa: care and protection for frontline healthcare workers

2020 283 citations Matthew Chersich, Glenda Gray et al. Globalization and Health profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Gregory Simpson South Africa	10	164	161	109	88	79	21	608
Radhika Gharpure United States	16	105 0.6×	419 2.6×	232 2.1×	64 0.7×	45 0.6×	40	1.1k
Keith Eastwood Australia	16	70 0.4×	376 2.3×	131 1.2×	60 0.7×	13 0.2×	34	849
Gabriele Poggensee Germany	25	146 0.9×	532 3.3×	323 3.0×	126 1.4×	74 0.9×	56	1.8k
Stephanie J. Salyer United States	14	48 0.3×	536 3.3×	367 3.4×	70 0.8×	17 0.2×	32	1.0k
Nicole Stephenson United States	15	160 1.0×	247 1.5×	169 1.6×	51 0.6×	38 0.5×	36	639
Emília Virgínia Noormahomed Mozambique	16	28 0.2×	216 1.3×	203 1.9×	36 0.4×	22 0.3×	60	850
Kristjana Ásbjörnsdóttir United States	18	31 0.2×	307 1.9×	134 1.2×	143 1.6×	71 0.9×	45	819
Kate M. Mitchell United Kingdom	19	24 0.1×	423 2.6×	131 1.2×	155 1.8×	39 0.5×	58	987
Dibesh Karmacharya United States	15	48 0.3×	104 0.6×	95 0.9×	49 0.6×	22 0.3×	39	619
Rebecca Richards United Kingdom	14	64 0.4×	59 0.4×	93 0.9×	122 1.4×	37 0.5×	38	735

Countries citing papers authored by Gregory Simpson

Since Specialization

Citations

This map shows the geographic impact of Gregory Simpson'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 Gregory Simpson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gregory Simpson more than expected).

Fields of papers citing papers by Gregory Simpson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gregory Simpson. 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 Gregory Simpson. The network helps show where Gregory Simpson may publish in the future.

Co-authorship network of co-authors of Gregory Simpson

This figure shows the co-authorship network connecting the top 25 collaborators of Gregory Simpson. A scholar is included among the top collaborators of Gregory Simpson 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 Gregory Simpson. Gregory Simpson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

McWhorter, Todd J., et al.. (2024). Unravelling the maternal evolutionary history of the African leopard (Panthera pardus pardus). PeerJ. 12. e17018–e17018. 1 indexed citations

McWhorter, Todd J., et al.. (2022). Gene flow connects key leopard (Panthera pardus) populations despite habitat fragmentation and persecution. Biodiversity and Conservation. 32(3). 945–963. 4 indexed citations

Thys, Séverine, Darryn L. Knobel, Gregory Simpson, et al.. (2021). Perceptions and Practices of Dog Ownership and Rabies Control at a Human–Wildlife–Domestic Animal Interface in South Africa. Anthrozoös. 34(2). 281–302. 2 indexed citations

Chatterjee, Pranab, et al.. (2021). One Health, “Disease X” & the challenge of “Unknown” Unknowns. The Indian Journal of Medical Research. 153(3). 264–271. 15 indexed citations

Simpson, Gregory, Peter N. Thompson, Claude Saegerman, et al.. (2021). Brucellosis in wildlife in Africa: a systematic review and meta-analysis. Scientific Reports. 11(1). 5960–5960. 31 indexed citations

Boardman, Wayne, et al.. (2021). Population density estimate of leopards (Panthera pardus) in north-western Mpumalanga, South Africa, determined using spatially explicit capture–recapture methods. Mammalian Biology. 102(4). 1173–1183. 9 indexed citations

Simpson, Gregory, et al.. (2021). Research priorities for control of zoonoses in South Africa. Transactions of the Royal Society of Tropical Medicine and Hygiene. 115(5). 538–550. 7 indexed citations

Chersich, Matthew, Glenda Gray, Lee Fairlie, et al.. (2020). COVID-19 in Africa: care and protection for frontline healthcare workers. Globalization and Health. 16(1). 46–46. 283 indexed citations breakdown →

Ehrenreich‐May, Jill, Gregory Simpson, Lindsay M. Stewart, et al.. (2020). Treatment of anxiety in older adolescents and young adults with autism spectrum disorders: A pilot study. Bulletin of the Menninger Clinic. 84(2). 105–136. 2 indexed citations

10.

Martínez‐López, Beatriz, Vanessa Quan, Patricia A. Conrad, et al.. (2019). Risk factors for bacterial zoonotic pathogens in acutely febrile patients in Mpumalanga Province, South Africa. Zoonoses and Public Health. 66(5). 458–469. 9 indexed citations

11.

Adesiyun, Abiodun A., et al.. (2019). Sero-Epidemiological Study of Selected Zoonotic and Abortifacient Pathogens in Cattle at a Wildlife-Livestock Interface in South Africa. Vector-Borne and Zoonotic Diseases. 20(4). 258–267. 25 indexed citations

12.

Simpson, Gregory, Vanessa Quan, John Frean, et al.. (2018). Prevalence of Selected Zoonotic Diseases and Risk Factors at a Human-Wildlife-Livestock Interface in Mpumalanga Province, South Africa. Vector-Borne and Zoonotic Diseases. 18(6). 303–310. 43 indexed citations

13.

Simpson, Gregory, et al.. (2018). Immunological response to <i>Brucella abortus<i> strain 19 vaccination of cattle in a communal area in South Africa. Journal of the South African Veterinary Association. 89(0). e1–e7. 18 indexed citations

14.

Conan, Anne, et al.. (2017). Census and vaccination coverage of owned dog populations in four resource-limited rural communities, Mpumalanga province, South Africa. Journal of the South African Veterinary Association. 88(0). e1–e7. 8 indexed citations

15.

Knobel, Darryn L., et al.. (2017). Rabies vaccine is associated with decreased all-cause mortality in dogs. Vaccine. 35(31). 3844–3849. 24 indexed citations

16.

Simpson, Gregory, et al.. (2017). Documenting the absence of brucellosis in cattle, goats and dogs in a “One Health” interface in the Mnisi community, Limpopo, South Africa. Tropical Animal Health and Production. 50(4). 903–906. 7 indexed citations

17.

Rooyen, Jacques van, Beatriz Martínez‐López, Darryn L. Knobel, et al.. (2016). One Health profile of a community at the wildlife-domestic animal interface, Mpumalanga, South Africa. Preventive Veterinary Medicine. 130. 119–128. 20 indexed citations

18.

Conan, Anne, et al.. (2015). Population Dynamics of Owned, Free-Roaming Dogs: Implications for Rabies Control. PLoS neglected tropical diseases. 9(11). e0004177–e0004177. 62 indexed citations

19.

Quan, Vanessa, John Frean, Gregory Simpson, et al.. (2014). Zoonotic infections in adults in the Bushbuckridge District of Mpumalanga Province. International Journal of Infectious Diseases. 21. 186–186. 2 indexed citations

20.

Lange, C F de, et al.. (2001). Influence of threonine intake on whole-body protein deposition and threonine utilization in growing pigs fed purified diets.. Journal of Animal Science. 79(12). 3087–3087. 34 indexed citations

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.

Explore authors with similar magnitude of impact