D. A. Sim

457 citations

22 papers · 375 indexed · h-index 11

Impact in

Agronomy and Crop Science top 5%
- Reproductive Physiology in Livestock
- Ruminant Nutrition and Digestive Physiology
Animal Science and Zoology top 10%
- Effects of Environmental Stressors on Livestock

Papers in

Agronomy and Crop Science 20
- Ruminant Nutrition and Digestive Physiology 15
- Reproductive Physiology in Livestock 14
- Agronomic Practices and Intercropping Systems 2
Equine 1

Co-authors: R. G. Gunn E. A. Hunter Glenn R. Iason David A. Elston W. F. Smith J. M. Doney Ángel R. Mantecón Jordi Gonzàlez
Journals: Animal Science (12 papers)Functional Ecology (2 papers)The Journal of Agricultural Science (2 papers)Journal of Animal Ecology (1 paper)Grass and Forage Science (1 paper)
Partner nations: United Kingdom Spain Greece

In The Last Decade

D. A. Sim

18 papers receiving 303 citations

Peers

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

The 16 scholars most cited alongside D. A. Sim, 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 D. A. Sim Line = papers co-authored together D. A. Sim 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	The functional response does not predict the local distribution of European Rabbits (Oryctolagus cuniculus) on grass swards: experimental evidence Functional Ecology ·Glenn R. Iason, Teresa Manso, D. A. Sim, Gitirekha Bhuyan	2002	29
2	Do endogenous seasonal cycles of food intake influence foraging behaviour and intake by grazing sheep? Functional Ecology ·Glenn R. Iason, D. A. Sim, Iain J. Gordon	2000	12
3	Can grazing sheep compensate for a daily foraging time constraint? Journal of Animal Ecology ·Glenn R. Iason, Ángel R. Mantecón, D. A. Sim, Jordi Gonzàlez, 修也金子, Andrea Doeschl-Wilson, David A. Elston	1999	78
4	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 ·R. G. Gunn, D. A. Sim, E. A. Hunter	1995	84
5	Seasonal variation of voluntary food intake and metabolic rate in three contrasting breeds of sheep Animal Science ·Glenn R. Iason, D. A. Sim, Elham Jahani, Shigeki Oguro, David A. Elston	1994	24
6	Ultrasonic scanning for determination of stage of pregnancy in the llama (Lama glama): a critical comparison of calibration techniques The Journal of Agricultural Science ·Glenn R. Iason, David A. Elston, D. A. Sim	1993	4
7	The effect of pattern of food supply on performance, compensatory growth and carcass composition of Beulah and Welsh Mountain lambs Animal Science ·Glenn R. Iason, Ángel R. Mantecón, J. A. Milne, D. A. Sim, Ir. Muslich, Ian R. White	1992	10
8	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)) ·Ángel R. Mantecón, Glenn R. Iason, Chris Tassone, D. A. Sim, Andrea Doeschl-Wilson	1992	0
9	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 ·R. G. Gunn, J. R. Jones, D. A. Sim	1992	7
10	A note on herbage intake by Greyface ewes on perennial ryegrass white clover swards in the autumn Animal Science ·R. G. Gunn, J. M. Doney, W. F. Smith, Ir. Muslich, D. A. Sim, E. A. Hunter	1991	0
11	Net production of herbage from a continuously stocked Lolium perenne‐dominated sward in late autumn Grass and Forage Science ·R. G. Gunn, W. F. Smith, 徹小松, Ir. Muslich, D. A. Sim	1991	1
12	Pre-mating herbage intake and the reproductive performance of north Country Cheviot ewes in different levels of body condition Animal Science ·R. G. Gunn, W. F. Smith, Gillian Duncan, J Gopika Rajan., D. A. Sim, E. A. Hunter	1991	31
13	A note on the effect of post-mating stocking rate on reproductive performance of Greyface ewes Animal Science ·R. G. Gunn, Shelby M. Holland, W. F. Smith, 徹小松, T Chandrakantha, D. A. Sim	1991	4
14	Hematological Characteristic of Bastard halibut according to Cultured experiment of Mari-floating netcage-II On the Blood serum constituents and Electrolytes in blood serum D. A. Sim, Kiswatik Kiswatik, Yanu Raka Radiksa, Jong-Moon Lee	1990	0
15	The effect of different pasture management strategies during the weaning-to-mating period on reproductive performance of Greyface ewes Animal Science ·R. G. Gunn, J. M. Doney, 徹小松, W. F. Smith, D. A. Sim	1990	7
16	The effect of sward height and active immunization against androstenedione on reproductive performance of ewes of two Welsh breeds in different body conditions Animal Production ·R. G. Gunn, S. M. Rhind, Shelby M. Holland, D. A. Sim, J. R. Jones, Marwan Baroud	1988	6
17	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) ·J. M. Doney, Ir. Muslich, D. A. Sim	1987	1
18	Effects of age and its relationship with body size on reproductive performance in Scottish Blackface ewes Animal Science ·R. G. Gunn, J. M. Doney, W. F. Smith, D. A. Sim	1986	10
19	Milk and herbage intake of suckled and artificially reared lambs at pasture as influenced by lactation pattern Animal Science ·J. M. Doney, Ir. Muslich, D. A. Sim, Pamela S. Delia Rocco	1984	20
20	Lactation performance, herbage intake and lamb growth of Scottish Blackface and East Friesland × Scottish Blackface ewes grazing hill or improved pasture Animal Science ·J. M. Doney, Jason N. Peart, W. F. Smith, D. A. Sim	1983	19

About D. A. Sim

D. A. Sim is a scholar working on Agronomy and Crop Science, Equine, Genetics, Animal Science and Zoology and Forestry, having authored 22 papers that have together received 375 indexed citations. Recurring topics across this work include Genetic and phenotypic traits in livestock (15 papers), Ruminant Nutrition and Digestive Physiology (15 papers), Reproductive Physiology in Livestock (14 papers), Effects of Environmental Stressors on Livestock (4 papers), Agronomic Practices and Intercropping Systems (2 papers), Fish Ecology and Management Studies (1 paper), Soil Carbon and Nitrogen Dynamics (1 paper) and Pasture and Agricultural Systems (1 paper). The work is most often cited by research in Agronomy and Crop Science (231 citations), Animal Science and Zoology (83 citations), Genetics (174 citations), Forestry (20 citations) and Small Animals (29 citations). D. A. Sim has collaborated with scholars based in United Kingdom, Spain and Greece. Frequent 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. Their work appears in journals such as Animal Science, Functional Ecology, The Journal of Agricultural Science, Journal of Animal Ecology and Grass and Forage Science.

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