R.G. Clark

696 citations

29 papers · 379 indexed · h-index 12

Impact in

Small Animals top 5%
- Infectious Diseases and Mycology
Agronomy and Crop Science top 10%
- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock

Papers in

Small Animals 5
- Infectious Diseases and Mycology 4
Agronomy and Crop Science 6
- Ruminant Nutrition and Digestive Physiology 5

Co-authors: J.F.T. Griffin CG Mackintosh D F Wright C.G. Mackintosh K.R. Millar Ivan G. Horak Joshua Rowland Geoffrey W. de Lisle
Journals: New Zealand Veterinary Journal (17 papers)Veterinary Pathology (1 paper)Infection and Immunity (1 paper)Veterinary Immunology and Immunopathology (1 paper)Veterinary Microbiology (1 paper)
Partner nations: New Zealand France Hungary

In The Last Decade

R.G. Clark

29 papers receiving 348 citations

Peers

Replace Susanne Eisenberg with:

Susanne Eisenberg Netherlands

Marie‐Eve Fecteau United States

A. K. B. Sackey Nigeria

Patrick Pithua United States

Bernadette V. Stang United States

Terry L. Fyock United States

ESG Sergeant Australia

Vishal Mahajan India

R. J. WALLACE United States

Khaled M. Al‐Qudah Jordan

R.G. Clark relative to Susanne Eisenberg Netherlands Susanne Eisenberg's profile →

Citations per field

00.5×1.5×

Susanne Eisenberg · 1×

×1.1 117/103

SA

×0.7 66/93

ACS

×1.1 116/103

ID

×0.8 189/231

EPIDE

×0.5 23/44

MICRO

Citations per year

2016

2017

2018

2019

2020

2021

2022

2023

2024

2025

Countries citing papers authored by R.G. Clark

Since Specialization

Citations

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

Fields of papers citing papers by R.G. Clark

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R.G. Clark. 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 R.G. Clark. The network helps show where R.G. Clark may publish in the future.

Co-authors

The 25 scholars most cited alongside R.G. Clark, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with R.G. Clark Line = papers co-authored together R.G. Clark links everyone, so they are left out of the graph.

All Works

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

20 of 20 papers shown

#	Work
1	Association betweenMycobacterium aviumsubspeciesparatuberculosisand lymph node size in New Zealand farmed deer (Cervus elaphus) New Zealand Veterinary Journal ·F Phlips Bernard, Peter R. Wilson, C. Heuer, 美紀和田, R.G. Clark, C.G. Mackintosh	2012	5
2	Modification to histopathological lesion severity score in red deer (Cervus elaphus) affected by Johne's disease New Zealand Veterinary Journal ·R.G. Clark, J.F.T. Griffin, CG Mackintosh	2011	6
3	Listeria monocytogenes Infection of the Alimentary Tract (Enteric Listeriosis) of Sheep in New Zealand Journal of Comparative Pathology ·F. Capellan, Patricia A. Pesavento, R.G. Clark	2011	11
4	Immunological and pathological responses of red deer resistant or susceptible genotypes, to experimental challenge with Mycobacterium avium subsp. paratuberculosis Veterinary Immunology and Immunopathology ·C.G. Mackintosh, R.G. Clark, Zhengwei Liu, Geoffrey W. de Lisle, Марина Алексеевна Калинкина, J.F.T. Griffin	2011	16
5	Johne's disease caused byMycobacterium aviumsubsp.paratuberculosisinfection in red deer (Cervus elaphus): An histopathological grading system, and comparison of paucibacillary and multibacillary disease New Zealand Veterinary Journal ·R.G. Clark, J.F.T. Griffin, CG Mackintosh	2010	34
6	Age susceptibility of red deer (Cervus elaphus) to paratuberculosis Veterinary Microbiology ·C.G. Mackintosh, R.G. Clark, Brahmdeo Yadav BIT Sindri, Zhengwei Liu, J.F.T. Griffin, Geoffrey W. de Lisle	2009	27
7	Some histological lesions seen in macroscopically normal mesenteric lymph nodes of deer New Zealand Veterinary Journal ·R.G. Clark, Crina Leahu, QUI DORIAN ALEXANDER, C. Heuer	2009	1
8	Efficacy, immune responses and side-effects of vaccines against Johne's disease in young red deer (Cervus elaphus) experimentally challenged withMycobacterium aviumsubsp paratuberculosis New Zealand Veterinary Journal ·CG Mackintosh, Hadeel A. Aldossary, Brahmdeo Yadav BIT Sindri, R.G. Clark, M Misiura, Megawari Megawari, J.F.T. Griffin	2008	16
9	Experimental infections in young red deer(Cervus elaphus)with a bovine and an ovine strain ofMycobacterium aviumsubspparatuberculosis New Zealand Veterinary Journal ·CG Mackintosh, Hadeel A. Aldossary, R.G. Clark, M Misiura, J.F.T. Griffin	2007	35
10	The metabolic effects of endotoxin are differentially affected by the pattern of GH administration in the rat Journal of Endocrinology ·Vincent Roelfsema, Minoru Takeuchi, Е. Н. Кисловский, Bernhard H. Breier, Lara Maxwell, Mark H. Oliver, Ellen F. Heineman, R.G. Clark, P. D. Gluckman	2001	15
11	Absence of a weight gain response to Vitamin B₁₂supplementation in weaned dairy heifers grazing pastures of marginal cobalt content New Zealand Veterinary Journal ·R.G. Clark, A Melchior, Américo Raposo Filho, Omeje Ngozi Prisicilla, H. V. Henderson	1999	6
12	A study of high lamb liver copper concentrations on some farms in Otago and Southland New Zealand Veterinary Journal ·R.G. Clark	1995	3
13	Reference curves to diagnose cobalt deficiency in sheep using liver and serum vitamin B12 levels New Zealand Veterinary Journal ·R.G. Clark, D F Wright, K.R. Millar, Joshua Rowland	1989	34
14	The effect of sporidesmin toxicity on ovine serum vitamin B12 levels New Zealand Veterinary Journal ·R.G. Clark, D. M. Duganzich, U. Offor Paschal, Jiahui Tang	1988	2
15	Absence of a weight gain response to vitamin B ₁₂ supplementation in weaned beef cattle grazing pastures of marginal cobalt content New Zealand Journal of Agricultural Research ·R.G. Clark, A Melchior, Michael Wisdom, U. Offor Paschal, Lisa H. Williamson, H. V. Henderson	1986	9
16	A proposed new approach and protocol to defining mineral deficiencies using reference curves. Cobalt deficiency in young sheep is used as a model New Zealand Veterinary Journal ·R.G. Clark, D F Wright, K.R. Millar	1985	15
17	Trace element deficiencies-a new approach to diagnosis Proceedings of the New Zealand Society of Animal Production ·Daniel F. B. Wright, R.G. Clark, Toshiki SHIMOKAWA, James Rowland	1984	3
18	Phosphorus deficiency in cattle on two farms in canterbury New Zealand Veterinary Journal ·R.G. Clark	1974	5
19	The pathological physiology of Ostertagia circumcincta infestation. Onderstepoort Journal of Veterinary Research ·Ivan G. Horak, R.G. Clark	1964	9
20	Studies on the alimentary tract of the merino sheep in South Africa. XXI. The toxicity of urea to sheep under different conditions Majallah-i taḥqīqāt-i dāmpizishkī/Majallah-i taḥqīqāt-i dāmpizishkī ·R.G. Clark, W. Oyaert, Zeljko Tukovic	1951	9

About R.G. Clark

R.G. Clark is a scholar working on Small Animals, Agronomy and Crop Science, Infectious Diseases, Microbiology and Epidemiology, having authored 29 papers that have together received 379 indexed citations. Recurring topics across this work include Mycobacterium research and diagnosis (11 papers), Tuberculosis Research and Epidemiology (7 papers), Ruminant Nutrition and Digestive Physiology (5 papers), Infectious Diseases and Mycology (4 papers), Salmonella and Campylobacter epidemiology (3 papers), Infectious Diseases and Tuberculosis (3 papers), Ginseng Biological Effects and Applications (2 papers) and Trace Elements in Health (2 papers). The work is most often cited by research in Small Animals (117 citations), Agronomy and Crop Science (66 citations), Infectious Diseases (116 citations), Epidemiology (189 citations) and Microbiology (23 citations). R.G. Clark has collaborated with scholars based in New Zealand, France and Hungary. Frequent co-authors include J.F.T. Griffin, CG Mackintosh, D F Wright, C.G. Mackintosh, K.R. Millar, Ivan G. Horak, Joshua Rowland, Geoffrey W. de Lisle, Mark W. Robinson and Rory O’Brien. Their work appears in journals such as New Zealand Veterinary Journal, Veterinary Pathology, Infection and Immunity, Veterinary Immunology and Immunopathology and Veterinary Microbiology.

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