John V. Ernst

1.9k total citations · 1 hit paper
87 papers, 1.5k citations indexed

About

John V. Ernst is a scholar working on Animal Science and Zoology, Parasitology and Small Animals. According to data from OpenAlex, John V. Ernst has authored 87 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 70 papers in Animal Science and Zoology, 48 papers in Parasitology and 43 papers in Small Animals. Recurrent topics in John V. Ernst's work include Coccidia and coccidiosis research (68 papers), Parasitic Infections and Diagnostics (44 papers) and Helminth infection and control (37 papers). John V. Ernst is often cited by papers focused on Coccidia and coccidiosis research (68 papers), Parasitic Infections and Diagnostics (44 papers) and Helminth infection and control (37 papers). John V. Ernst collaborates with scholars based in United States, France and Germany. John V. Ernst's co-authors include William L. Current, Wilfred M. Weinstein, Melvin B. Heyman, Datus M. Hammond, Bill Chobotar, David S. Lindsay, G. W. Benz, Barry P. Stuart, Erich Scholtyseck and Harvey S. Gosser and has published in prestigious journals such as New England Journal of Medicine, Journal of Animal Science and American Journal of Tropical Medicine and Hygiene.

In The Last Decade

John V. Ernst

81 papers receiving 1.3k 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.

Human Cryptosporidiosis in Immunocompetent and Immunodeficient Persons

1983 500 citations William L. Current, John V. Ernst et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John V. Ernst United States	17	1.1k	818	553	344	112	87	1.5k
S. Lloyd United Kingdom	20	551 0.5×	226 0.3×	381 0.7×	334 1.0×	169 1.5×	65	1.3k
Mercedes Gómez-Bautista Spain	26	1.4k 1.3×	247 0.3×	272 0.5×	539 1.6×	317 2.8×	55	1.7k
Berit Bangoura Germany	22	733 0.7×	669 0.8×	551 1.0×	171 0.5×	212 1.9×	75	1.3k
J Vítovec Czechia	17	844 0.8×	266 0.3×	281 0.5×	513 1.5×	33 0.3×	88	1.1k
H. Wędrychowicz Poland	20	843 0.8×	317 0.4×	491 0.9×	418 1.2×	50 0.4×	112	1.2k
William J. Bemrick United States	17	758 0.7×	155 0.2×	121 0.2×	378 1.1×	47 0.4×	45	988
F.J. Martínez-Moreno Spain	18	479 0.5×	356 0.4×	446 0.8×	135 0.4×	152 1.4×	55	1.0k
Motohiro Iseki Japan	26	1.4k 1.3×	240 0.3×	144 0.3×	904 2.6×	224 2.0×	57	1.8k
Makoto Matsubayashi Japan	20	876 0.8×	387 0.5×	349 0.6×	537 1.6×	59 0.5×	111	1.3k
Una M. Morgan Australia	21	2.4k 2.3×	392 0.5×	221 0.4×	1.7k 5.1×	60 0.5×	26	2.5k

Countries citing papers authored by John V. Ernst

Since Specialization

Citations

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

Fields of papers citing papers by John V. Ernst

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John V. Ernst. 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 V. Ernst. The network helps show where John V. Ernst may publish in the future.

Co-authorship network of co-authors of John V. Ernst

This figure shows the co-authorship network connecting the top 25 collaborators of John V. Ernst. A scholar is included among the top collaborators of John V. Ernst 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 V. Ernst. John V. Ernst 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

Ciordia, H., J. A. Stuedemann, S. R. Wilkinson, et al.. (1985). Effect of a once-daily suckling program on gastrointestinal parasitism in Angus cows and calves. American Journal of Veterinary Research. 46(3). 566–569. 4 indexed citations

Ernst, John V., David S. Lindsay, & William L. Current. (1985). Control of Isospora suis-induced coccidiosis on a swine farm. American Journal of Veterinary Research. 46(3). 643–645. 9 indexed citations

Benz, G. W., et al.. (1983). Anthelmintic efficacy of ivermectin against gastrointestinal nematodes in calves. American Journal of Veterinary Research. 44(7). 1363–1365. 3 indexed citations

Ernst, John V., et al.. (1982). SARCOCYSTIS IN A BALD EAGLE (HALIAEETUS LEUCOCEPHALUS). Journal of Wildlife Diseases. 18(2). 253–255. 12 indexed citations

Current, William L., John V. Ernst, & G. W. Benz. (1981). Endogenous stages of Eimeria tuskegeensis (Protozoa: Eimeriidae) in the cotton rat, Sigmodon hispidus.. PubMed. 67(2). 204–13. 3 indexed citations

Benz, G. W. & John V. Ernst. (1981). Anthelmintic Efficacy of Ivermectin Against Immature Gastrointestinal Pulmonary Nematodes of Calves. American Journal of Veterinary Research. 42(12). 2097–2098. 5 indexed citations

Chobotar, Bill, J. Sénaud, John V. Ernst, & Erich Scholtyseck. (1980). Ultrastructure of macrogametogenesis and formation of the oocyst wall of Eimeria papillata in Mus musculus.. Protist. 16(1). 115–124. 12 indexed citations

Speer, C. A., et al.. (1980). Development of Sarcocystis hemionilatrantis Hudkins and Kistner, 1977 in the small intestine of coyotes.. Proceedings of the Helminthological Society of Washington. 47(1). 106–113. 5 indexed citations

Ciordia, H., J. A. Stuedemann, John V. Ernst, H. C. McCampbell, & S. R. Wilkinson. (1980). Effects of Level of Nitrogen Fertilization of Fescue Pasture on Gastrointestinal Parasitism of Beef Cattle. American Journal of Veterinary Research. 41(6). 893–898. 3 indexed citations

10.

Benz, G. W. & John V. Ernst. (1979). Efficacy of Salinomycin in Treatment of Experimental Eimeria bovis Infections in Calves. American Journal of Veterinary Research. 40(8). 1180–1186. 12 indexed citations

11.

Benz, G. W. & John V. Ernst. (1979). Anthelmintic Activities of B1a Fraction of Avermectin Against Gastrointestinal Nematodes in Calves. American Journal of Veterinary Research. 40(8). 1187–1188. 2 indexed citations

12.

Benz, G. W. & John V. Ernst. (1978). Anthelmintic Efficacy of Albendazole Against Adult Dictyocaulus viviparus in Experimentally Infected Calves. American Journal of Veterinary Research. 39(7). 1107–1108.

13.

Benz, G. W. & John V. Ernst. (1978). Anthelmintic Activity of Fenbendazole Against Gastrointestinal Nematodes in Calves. American Journal of Veterinary Research. 39(7). 1103–1105. 1 indexed citations

14.

Ernst, John V., et al.. (1971). Redescription of Oocysts of the Bovine Coccidium Eimeria brasiliensis Torres and Ramos, 1939. American Journal of Veterinary Research. 32(2). 223–228. 3 indexed citations

15.

Ernst, John V., et al.. (1971). Eimeria palustris sp. n. and Isospora hammondi sp. n. (Coccidia: Eimeriidae) from the Marsh Rice Rat, Oryzomys palustris (Harlan). Journal of Parasitology. 57(6). 1293–1293. 5 indexed citations

16.

Ernst, John V., et al.. (1971). Eimeria kinsellai sp. n. (Protozoa: Eimeriidae) in a Marsh Rice Rat Oryzomys palustris from Florida*. The Journal of Protozoology. 18(3). 546–547. 2 indexed citations

17.

Ernst, John V., et al.. (1970). Eimeria sprehni Yakimoff, 1934, and E. causeyi sp. n. (Protozoa: Eimeriidae) from the Canadian Beaver, Castor canadensis. Journal of Parasitology. 56(1). 30–30. 5 indexed citations

18.

Hammond, Datus M., Bill Chobotar, & John V. Ernst. (1968). Cytological Observations on Sporozoites of Eimeria bovis and E. auburnensis, and an Eimeria Species from the Ord Kangaroo Rat. Journal of Parasitology. 54(3). 550–550. 55 indexed citations

19.

Ernst, John V., et al.. (1967). Eimeria scholtysecki n. sp. from Ord's Kangaroo Rat Dipodomys ordii*. The Journal of Protozoology. 14(2). 181–182. 7 indexed citations

20.

Scholtyseck, Erich, Datus M. Hammond, & John V. Ernst. (1966). Fine Structure of the Macrogametes of Eimeria perforans, E. stiedae, E. bovis, and E. auburnensis. Journal of Parasitology. 52(5). 975–975. 49 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.

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