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Animal Science and Veterinary
New Zealand
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 51 592 542 6 6 257 7819

R.S. Morris publications per year

The chart shows the history of publications by R.S. Morris between 1950 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R.S. Morris published across 71 years, from 1950 to 2020, averaging 2.4 papers a year. Output peaked at 14 publications in 1995. 3 of the 173 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1950 to 2020. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 1995. 1950: 1 publication 1951: 1 publication 1952: 0 publications 1953: 0 publications 1954: 0 publications 1955: 0 publications 1956: 0 publications 1957: 0 publications 1958: 0 publications 1959: 0 publications 1960: 0 publications 1961: 0 publications 1962: 0 publications 1963: 0 publications 1964: 0 publications 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 1 publication 1969: 2 publications 1970: 0 publications 1971: 2 publications 1972: 4 publications 1973: 2 publications 1974: 0 publications 1975: 0 publications 1976: 3 publications 1977: 2 publications 1978: 7 publications 1979: 3 publications 1980: 4 publications 1981: 1 publication 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 2 publications 1986: 3 publications 1987: 1 publication 1988: 3 publications 1989: 4 publications 1990: 1 publication 1991: 6 publications 1992: 1 publication 1993: 4 publications 1994: 4 publications 1995: 14 publications 1996: 0 publications 1997: 6 publications 1998: 8 publications 1999: 11 publications 2000: 5 publications 2001: 5 publications 2002: 5 publications 2003: 6 publications 2004: 4 publications 2005: 11 publications 2006: 4 publications 2007: 7 publications 2008: 4 publications 2009: 5 publications 2010: 1 publication 2011: 0 publications 2012: 2 publications 2013: 1 publication 2014: 2 publications 2015: 2 publications 2016: 1 publication 2017: 1 publication 2018: 3 publications 2019: 2 publications 2020: 1 publication
1950 2020

173 publications in total across all disciplines

View publications per year as a table
R.S. Morris: publications per year, 1950 to 2020
Year Publications
1950 1
1951 1
1952 0
1953 0
1954 0
1955 0
1956 0
1957 0
1958 0
1959 0
1960 0
1961 0
1962 0
1963 0
1964 0
1965 0
1966 0
1967 0
1968 1
1969 2
1970 0
1971 2
1972 4
1973 2
1974 0
1975 0
1976 3
1977 2
1978 7
1979 3
1980 4
1981 1
1982 0
1983 0
1984 0
1985 2
1986 3
1987 1
1988 3
1989 4
1990 1
1991 6
1992 1
1993 4
1994 4
1995 14
1996 0
1997 6
1998 8
1999 11
2000 5
2001 5
2002 5
2003 6
2004 4
2005 11
2006 4
2007 7
2008 4
2009 5
2010 1
2011 0
2012 2
2013 1
2014 2
2015 2
2016 1
2017 1
2018 3
2019 2
2020 1
Total 173
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R.S. Morris publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where R.S. Morris sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 254–258 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 257 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108
84–88 105
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28 257
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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R.S. Morris D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where R.S. Morris sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 51 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 51 D-Index — 82nd percentile

82% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34 51
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Research.com Recognitions

  • 2026 - Research.com Animal Science and Veterinary in New Zealand Leader Award
  • 2025 - Research.com Animal Science and Veterinary in New Zealand Leader Award
  • 2023 - Research.com Animal Science and Veterinary in New Zealand Leader Award
  • 2022 - Research.com Animal Science and Veterinary in New Zealand Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Disease
  • Virus

The scientist’s investigation covers issues in Veterinary medicine, Animal science, Tuberculosis, Herd and Epidemiology. R.S. Morris performs integrative study on Veterinary medicine and Spatial simulation. His research investigates the connection between Animal science and topics such as Ecology that intersect with problems in Probability of survival.

His work investigates the relationship between Tuberculosis and topics such as Immunology that intersect with problems in Incidence. As a member of one scientific family, R.S. Morris mostly works in the field of Herd, focusing on Estrous cycle and, on occasion, Efficiency. His Epidemiology study also includes fields such as

  • Pathogenesis, Cervus elaphus, Influenza A virus and Outbreak most often made with reference to Transmission,
  • Persistent Disease which connect with Vaccination.

His most cited work include:

  • The epidemiology of Mycobacterium bovis infections (278 citations)
  • Concepts for risk-based surveillance in the field of veterinary medicine and veterinary public health: review of current approaches. (245 citations)
  • Predictive spatial modelling of alternative control strategies for the foot-and-mouth disease epidemic in Great Britain, 2001. (156 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of investigation include Veterinary medicine, Animal science, Epidemiology, Disease and Herd. His Veterinary medicine research incorporates elements of Environmental health, Tuberculosis and Confidence interval. In the field of Animal science, his study on Weaning overlaps with subjects such as Ice calving.

His work is dedicated to discovering how Epidemiology, Transmission are connected with Influenza A virus and other disciplines. His Disease research is multidisciplinary, incorporating elements of Incidence, Outbreak and Pediatrics. His Dairy herds study, which is part of a larger body of work in Herd, is frequently linked to Health program, bridging the gap between disciplines.

He most often published in these fields:

  • Veterinary medicine (46.34%)
  • Animal science (17.07%)
  • Epidemiology (16.26%)

What were the highlights of his more recent work (between 2006-2020)?

  • Veterinary medicine (46.34%)
  • Epidemiology (16.26%)
  • Environmental health (9.76%)

In recent papers he was focusing on the following fields of study:

His primary scientific interests are in Veterinary medicine, Epidemiology, Environmental health, Risk assessment and Influenza A virus subtype H5N1. R.S. Morris merges many fields, such as Veterinary medicine and Kernel smoother, in his writings. His Epidemiology study incorporates themes from Seasonality, Disease, Pediatrics and Cohort.

His Environmental health research focuses on Confidence interval and how it relates to Predictive value of tests. His Risk assessment study integrates concerns from other disciplines, such as Exposure assessment, Rabies and Public health. His study on Influenza A virus subtype H5N1 also encompasses disciplines like

  • Influenza A virus and related Transmission,
  • Outbreak together with Post weaning, Immunology, Porcine circovirus and Abstract case,
  • Flock which intersects with area such as Animal husbandry, Broiler, Grazing, Prospective cohort study and Vaccination.

Between 2006 and 2020, his most popular works were:

  • Spatio-temporal epidemiology of highly pathogenic avian influenza outbreaks in the two deltas of Vietnam during 2003-2007 (74 citations)
  • InterSpread Plus: a spatial and stochastic simulation model of disease in animal populations. (60 citations)
  • Application of portfolio theory to risk-based allocation of surveillance resources in animal populations. (36 citations)

Best Publications

  • The epidemiology of Mycobacterium bovis infections

    R.S. Morris;D.U. Pfeiffer;R. Jackson

  • Concepts for risk-based surveillance in the field of veterinary medicine and veterinary public health: review of current approaches.

    Katharina D.C. Stärk;Gertraud Regula;Jorge Hernandez;Lea Knopf

  • Predictive spatial modelling of alternative control strategies for the foot-and-mouth disease epidemic in Great Britain, 2001.

    R S Morris;J W Wilesmith;M W Stern;R L Sanson

  • Social-network analysis of Mycobacterium bovis transmission among captive brushtail possums (Trichosurus vulpecula)

    L.A.L Corner;D.U Pfeiffer;R.S Morris

  • A study of oestrous behaviour and oestrus detection methods in a large commercial dairy herd. I. The relative efficiency of methods of oestrus detection.

    NB Williamson;RS Morris;DC Blood;CM Cannon

  • Environmental and behavioural factors affecting the prevalence of foot lameness in New Zealand dairy herds — a case-control study

    R N Chesterton;D U Pfeiffer;R S Morris;C M Tanner

  • The impact of a monthly rest day on avian influenza virus isolation rates in retail live poultry markets in Hong Kong

    N. Y. Kung;Y. Guan;N. R. Perkins;L. Bissett

  • Profiling the New Zealand Thoroughbred racing industry. 2. Conditions interfering with training and racing

    N R Perkins;S W J Reid;R S Morris

  • Directions and issues in bovine tuberculosis epidemiology and control in New Zealand

    R. S. Morris;D. U. Pfeiffer

  • Risk for infection with highly pathogenic influenza A virus (H5N1) in chickens, Hong Kong, 2002.

    Nina Y. Kung;Roger S. Morris;Nigel R. Perkins;Les D. Sims

  • A body condition score system and its use for farmed red deer hinds

    L. Audige;P. R. Wilson;R. S. Morris

  • Risk factors for injury to the superficial digital flexor tendon and suspensory apparatus in Thoroughbred racehorses in New Zealand

    N R Perkins;S W J Reid;R S Morris

  • Epidemiology and pathogenesis of Mycobacterium bovis infection of red deer (Cervus elaphus) in New Zealand.

    I.W. Lugton;P.R. Wilson;R.S. Morris;G. Nugent

  • A study of the environmental survival of Mycobacterium bovis on a farm in New Zealand.

    R. Jackson;G.W. de Lisle;R.S. Morris

  • Spatio-temporal epidemiology of highly pathogenic avian influenza outbreaks in the two deltas of Vietnam during 2003-2007

    Phan Q. Minh;Roger S. Morris;Birgit Schauer;Mark Stevenson

  • Behavioural studies on the potential for direct transmission of tuberculosis from feral ferrets (Mustela furo) and possums (Trichosurus vulpecula) to farmed livestock

    C.M. Sauter;R.S. Morris

  • InterSpread Plus: a spatial and stochastic simulation model of disease in animal populations.

    M.A. Stevenson;R.L. Sanson;M.W. Stern;B.D. O’Leary

  • Elucidating the risk factors of feline lower urinary tract disease

    B R Jones;R L Sanson;R S Morris

  • Survival of rabbit haemorrhagic disease virus (RHDV) in the environment.

    Joerg Henning;J. Meers;P. R. Davies;R. S. Morris

  • A study of oestrous behaviour and oestrus detection methods in a large commercial dairy herd. II. Oestrous signs and behaviour patterns

    N B Williamson;R S Morris;D C Blood;C M Cannon

  • A health program for commercial dairy herds. 1. Objectives and methods.

    Blood Dc;Morris Rs;Williamson Nb;Cannon Cm

  • Interactions between beef cattle and simulated tuberculous possums on pasture.

    B.M. Paterson;R.S. Morris

  • Decision-support tools for foot and mouth disease control.

    Morris Rs;Sanson Rl;Stern Mw;Stevenson M

  • The efficacy of bacille Calmette-Guérin vaccine in wild brushtail possums (Trichosurus vulpecula).

    L.A.L Corner;S Norton;B.M Buddle;R.S Morris

  • Spatio-temporal epidemiology of foot-and-mouth disease in two counties of Great Britain in 2001.

    J W Wilesmith;M A Stevenson;C B King;R S Morris

  • Simulation analyses to evaluate alternative control strategies for the 2002 foot-and-mouth disease outbreak in the Republic of Korea.

    H. Yoon;S.-H. Wee;M.A. Stevenson;B.D. O’Leary

Frequent Co-Authors

Dirk U. Pfeiffer
Dirk U. Pfeiffer City University of Hong Kong
Mark Stevenson
Mark Stevenson University of Melbourne
Leigh A. L. Corner
Leigh A. L. Corner University College Dublin
N.B. Williamson
N.B. Williamson Massey University
Katharina D.C. Stärk
Katharina D.C. Stärk Royal Veterinary College
Jackie Benschop
Jackie Benschop Massey University
G.W. de Lisle
G.W. de Lisle AgResearch
Peter R. Davies
Peter R. Davies University of Minnesota
Nigel P. French
Nigel P. French Massey University

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