D. A. Sim

457 total citations
22 papers, 375 citations indexed

About

D. A. Sim is a scholar working on Agronomy and Crop Science, Genetics and Animal Science and Zoology. According to data from OpenAlex, D. A. Sim has authored 22 papers receiving a total of 375 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Agronomy and Crop Science, 15 papers in Genetics and 5 papers in Animal Science and Zoology. Recurrent topics in D. A. Sim's work include Genetic and phenotypic traits in livestock (15 papers), Ruminant Nutrition and Digestive Physiology (15 papers) and Reproductive Physiology in Livestock (14 papers). D. A. Sim is often cited by papers focused on Genetic and phenotypic traits in livestock (15 papers), Ruminant Nutrition and Digestive Physiology (15 papers) and Reproductive Physiology in Livestock (14 papers). D. A. Sim collaborates with scholars based in United Kingdom, Spain and Greece. D. A. Sim's co-authors include R. G. Gunn, E. A. Hunter, Glenn R. Iason, David A. Elston, W. F. Smith, J. M. Doney, Ángel R. Mantecón, Jordi Gonzàlez, J. R. Jones and Teresa Manso and has published in prestigious journals such as Journal of Animal Ecology, Functional Ecology and The Journal of Agricultural Science.

In The Last Decade

D. A. Sim

18 papers receiving 303 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
D. A. Sim United Kingdom 11 231 174 84 83 59 22 375
S. F. Crosbie New Zealand 12 204 0.9× 190 1.1× 134 1.6× 45 0.5× 17 0.3× 20 419
Ó. R. Dýrmundsson United Kingdom 12 219 0.9× 233 1.3× 49 0.6× 69 0.8× 12 0.2× 32 395
Zygmunt Giżejewski Poland 11 102 0.4× 106 0.6× 95 1.1× 22 0.3× 12 0.2× 43 383
Robert D. Arthur United States 12 79 0.3× 92 0.5× 58 0.7× 97 1.2× 25 0.4× 20 383
D Oduor‐Okelo Kenya 12 55 0.2× 30 0.2× 78 0.9× 15 0.2× 41 0.7× 36 329
Larry W. Varner United States 13 151 0.7× 88 0.5× 185 2.2× 59 0.7× 4 0.1× 28 370
J. C. Mezzalira Brazil 10 266 1.2× 103 0.6× 57 0.7× 31 0.4× 7 0.1× 26 410
William H. McMillan New Zealand 5 127 0.5× 126 0.7× 19 0.2× 5 0.1× 109 1.8× 8 442
Eric D. Mould 5 165 0.7× 57 0.3× 261 3.1× 35 0.4× 2 0.0× 8 383
E. E. Remmenga United States 12 102 0.4× 50 0.3× 122 1.5× 24 0.3× 3 0.1× 28 399

Countries citing papers authored by D. A. Sim

Since Specialization
Citations

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

Fields of papers citing papers by D. A. Sim

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. A. Sim. 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 D. A. Sim. The network helps show where D. A. Sim may publish in the future.

Co-authorship network of co-authors of D. A. Sim

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

All Works

20 of 20 papers shown
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Iason, Glenn R., D. A. Sim, & Iain J. Gordon. (2000). Do endogenous seasonal cycles of food intake influence foraging behaviour and intake by grazing sheep?. Functional Ecology. 14(5). 614–622. 12 indexed citations
3.
Iason, Glenn R., et al.. (1999). Can grazing sheep compensate for a daily foraging time constraint?. Journal of Animal Ecology. 68(1). 87–93. 78 indexed citations
4.
Gunn, R. G., D. A. Sim, & E. A. Hunter. (1995). Effects of nutrition in utero and in early life on the subsequent lifetime reproductive performance of Scottish Blackface ewes in two management systems. Animal Science. 60(2). 223–230. 84 indexed citations
5.
Iason, Glenn R., et al.. (1994). Seasonal variation of voluntary food intake and metabolic rate in three contrasting breeds of sheep. Animal Science. 58(3). 381–387. 24 indexed citations
6.
Iason, Glenn R., David A. Elston, & D. A. Sim. (1993). Ultrasonic scanning for determination of stage of pregnancy in the llama (Lama glama): a critical comparison of calibration techniques. The Journal of Agricultural Science. 120(3). 371–377. 4 indexed citations
7.
Iason, Glenn R., et al.. (1992). The effect of pattern of food supply on performance, compensatory growth and carcass composition of Beulah and Welsh Mountain lambs. Animal Science. 54(2). 235–241. 10 indexed citations
8.
Mantecón, Ángel R., et al.. (1992). Efecto de la disponibilidad de pasto y del tiempo de pastoreo sobre el comportamiento ingestivo del ganado ovino de raza merina. DIGITAL.CSIC (Spanish National Research Council (CSIC)).
9.
Gunn, R. G., J. R. Jones, & D. A. Sim. (1992). The effect of feeding supplements in the autumn on the reproductive performance of grazing ewes 2. Feeding supplements in relation to sward height. Animal Science. 54(2). 249–258. 7 indexed citations
10.
Gunn, R. G., et al.. (1991). A note on herbage intake by Greyface ewes on perennial ryegrass white clover swards in the autumn. Animal Science. 53(2). 257–260.
11.
Gunn, R. G., et al.. (1991). Net production of herbage from a continuously stocked Lolium perenne‐dominated sward in late autumn. Grass and Forage Science. 46(4). 437–439. 1 indexed citations
12.
Gunn, R. G., et al.. (1991). Pre-mating herbage intake and the reproductive performance of north Country Cheviot ewes in different levels of body condition. Animal Science. 52(1). 149–156. 31 indexed citations
13.
Gunn, R. G., et al.. (1991). A note on the effect of post-mating stocking rate on reproductive performance of Greyface ewes. Animal Science. 52(3). 548–550. 4 indexed citations
14.
Sim, D. A., et al.. (1990). Hematological Characteristic of Bastard halibut according to Cultured experiment of Mari-floating netcage-II On the Blood serum constituents and Electrolytes in blood serum. 3(1). 39–50.
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Doney, J. M., et al.. (1987). Growth rate and carcase composition of Border Leicester x Scottish Blackface, East Frlesland x Blackface and East Friesland x North Country Cheviot Lambs. Proceedings of the British Society of Animal Production (1972). 1987. 82–82. 1 indexed citations
18.
Gunn, R. G., J. M. Doney, W. F. Smith, & D. A. Sim. (1986). Effects of age and its relationship with body size on reproductive performance in Scottish Blackface ewes. Animal Science. 43(2). 279–283. 10 indexed citations
19.
Doney, J. M., et al.. (1984). Milk and herbage intake of suckled and artificially reared lambs at pasture as influenced by lactation pattern. Animal Science. 38(2). 191–199. 20 indexed citations
20.
Doney, J. M., Jason N. Peart, W. F. Smith, & D. A. Sim. (1983). Lactation performance, herbage intake and lamb growth of Scottish Blackface and East Friesland × Scottish Blackface ewes grazing hill or improved pasture. Animal Science. 37(2). 283–292. 19 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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