Richard Muirhead

1.9k total citations
52 papers, 1.5k citations indexed

About

Richard Muirhead is a scholar working on Water Science and Technology, Environmental Chemistry and Soil Science. According to data from OpenAlex, Richard Muirhead has authored 52 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 39 papers in Water Science and Technology, 21 papers in Environmental Chemistry and 12 papers in Soil Science. Recurrent topics in Richard Muirhead's work include Fecal contamination and water quality (27 papers), Soil and Water Nutrient Dynamics (21 papers) and Hydrology and Watershed Management Studies (15 papers). Richard Muirhead is often cited by papers focused on Fecal contamination and water quality (27 papers), Soil and Water Nutrient Dynamics (21 papers) and Hydrology and Watershed Management Studies (15 papers). Richard Muirhead collaborates with scholars based in New Zealand, United States and South Korea. Richard Muirhead's co-authors include R. M. Monaghan, Phil Bremer, Robert J. Davies‐Colley, A. Donnison, John W. Nagels, R. W. McDowell, J. Gallagher, Cecile A. M. de Klein, John J. Drewry and Rob Collins and has published in prestigious journals such as Environmental Science & Technology, PLoS ONE and The Science of The Total Environment.

In The Last Decade

Richard Muirhead

50 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Richard Muirhead New Zealand	22	899	415	374	232	169	52	1.5k
Graham Wilkes Canada	26	791 0.9×	193 0.5×	231 0.6×	129 0.6×	236 1.4×	38	1.6k
A. Donnison New Zealand	21	850 0.9×	276 0.7×	308 0.8×	178 0.8×	358 2.1×	42	1.8k
Marirosa Molina United States	23	590 0.7×	165 0.4×	248 0.7×	309 1.3×	470 2.8×	55	1.7k
Linda K. Dick United States	13	649 0.7×	106 0.3×	255 0.7×	164 0.7×	218 1.3×	15	1.1k
Jean E. McLain United States	25	371 0.4×	273 0.7×	197 0.5×	338 1.5×	346 2.0×	56	1.9k
Michael B. Jenkins United States	31	555 0.6×	364 0.9×	208 0.6×	652 2.8×	491 2.9×	83	2.7k
Mark D. Wyer United Kingdom	27	1.8k 2.0×	349 0.8×	686 1.8×	83 0.4×	193 1.1×	62	2.3k
John P. Brooks United States	27	428 0.5×	206 0.5×	194 0.5×	346 1.5×	241 1.4×	108	2.0k
Brian D. Badgley United States	26	884 1.0×	180 0.4×	545 1.5×	377 1.6×	693 4.1×	49	2.5k
John W. Nagels New Zealand	20	995 1.1×	522 1.3×	354 0.9×	138 0.6×	440 2.6×	32	1.7k

Countries citing papers authored by Richard Muirhead

Since Specialization

Citations

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

Fields of papers citing papers by Richard Muirhead

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Richard Muirhead. 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 Richard Muirhead. The network helps show where Richard Muirhead may publish in the future.

Co-authorship network of co-authors of Richard Muirhead

This figure shows the co-authorship network connecting the top 25 collaborators of Richard Muirhead. A scholar is included among the top collaborators of Richard Muirhead 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 Richard Muirhead. Richard Muirhead 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

Cookson, Adrian L., Patrick J. Biggs, Lynn Rogers, et al.. (2026). Escherichia Species Diversity Across Pristine and Impacted Catchments: Evidence for Avian Sources of Escherichia marmotae in Aotearoa/New Zealand. Environmental Microbiology Reports. 18(1). e70278–e70278.

Biggs, Patrick J., Marie Moinet, Lynn Rogers, et al.. (2024). Draft genome sequences of Escherichia spp. isolates from New Zealand environmental sources. Microbiology Resource Announcements. 13(3). e0100723–e0100723. 1 indexed citations

Ghimire, Chandra Prasad, et al.. (2024). Grazing strategies for reducing contaminant losses in surface runoff from winter forage crop fields located in hill country and grazed by sheep. New Zealand Journal of Agricultural Research. 68(5). 1065–1081. 1 indexed citations

Smith, L. C. & Richard Muirhead. (2023). A review of the effectiveness of sediment traps for New Zealand agriculture. New Zealand Journal of Agricultural Research. 67(5). 547–564. 5 indexed citations

Muirhead, Richard. (2023). Escherichia coli runoff from sheep and dairy cow grazed pasture: A plot scale simulation. Journal of Environmental Quality. 52(2). 287–295. 2 indexed citations

Muirhead, Richard, et al.. (2022). Survival, mobilization, and transport ofEscherichia colifrom sheep faeces. Journal of Applied Microbiology. 134(2).

Monaghan, R. M., Les Basher, Raphael Spiekermann, et al.. (2021). Quantifying contaminant losses to water from pastoral landuses in New Zealand II. The effects of some farm mitigation actions over the past two decades. New Zealand Journal of Agricultural Research. 64(3). 365–389. 22 indexed citations

Gray, C. W., Chandra Prasad Ghimire, R. W. McDowell, & Richard Muirhead. (2021). The impact of cattle grazing and treading on soil properties and the transport of phosphorus, sediment and E. coli in surface runoff from grazed pasture. New Zealand Journal of Agricultural Research. 65(6). 445–462. 4 indexed citations

Muirhead, Richard, Shailesh Kumar Singh, R. M. Monaghan, et al.. (2020). Development of a national‐scale framework to characterise transfers of N, P and Escherichia coli from land to water. New Zealand Journal of Agricultural Research. 64(3). 286–313. 10 indexed citations

10.

Semádeni-Davies, Annette, et al.. (2019). CLUES model calibration: residual analysis to investigate potential sources of model error. New Zealand Journal of Agricultural Research. 64(3). 320–343. 6 indexed citations

11.

Elliott, Alexander H., et al.. (2019). A Heuristic Method for Determining Changes of Source Loads to Comply with Water Quality Limits in Catchments. Environmental Management. 65(2). 272–285. 5 indexed citations

12.

Muirhead, Richard. (2019). The effectiveness of streambank fencing to improve microbial water quality: A review. Agricultural Water Management. 223. 105684–105684. 6 indexed citations

13.

Oladeinde, Adelumola, Erin K. Lipp, Chia-Ying Chen, et al.. (2018). Transcriptome Changes of Escherichia coli, Enterococcus faecalis, and Escherichia coli O157:H7 Laboratory Strains in Response to Photo-Degraded DOM. Frontiers in Microbiology. 9. 882–882. 6 indexed citations

14.

Oliver, David M., Yakov Pachepsky, Richard Muirhead, et al.. (2015). Predicting microbial water quality with models: Over-arching questions for managing risk in agricultural catchments. The Science of The Total Environment. 544. 39–47. 57 indexed citations

15.

Rapp, Delphine, Colleen Ross, Vanessa M. Cave, & Richard Muirhead. (2013). Prevalence, concentration and genotypes ofCampylobacter jejuniin faeces from dairy herds managed in farm systems with or without housing. Journal of Applied Microbiology. 116(4). 1035–1043. 10 indexed citations

16.

Muirhead, Richard. (2009). Soil and faecal material reservoirs of Escherichia coli in a grazed pasture. New Zealand Journal of Agricultural Research. 52(1). 1–8. 21 indexed citations

17.

Muirhead, Richard, Rob Collins, & Phil Bremer. (2006). Numbers and transported state of Escherichia coli in runoff direct from fresh cowpats under simulated rainfall*. Letters in Applied Microbiology. 42(2). 83–87. 42 indexed citations

18.

Muirhead, Richard, R. P. Littlejohn, & Phil Bremer. (2004). Evaluation of the effectiveness of a commercially available defined substrate medium and enumeration system for measuring Escherichia coli numbers in faeces and soil samples*. Letters in Applied Microbiology. 39(4). 383–387. 20 indexed citations

19.

McDowell, R. W., John J. Drewry, Richard Muirhead, & R. J. Paton. (2003). Cattle treading and phosphorus and sediment loss in overland flow from grazed cropland. Australian Journal of Soil Research. 41(8). 1521–1532. 50 indexed citations

20.

Gregory, N. G., et al.. (2000). Effect of preslaughter feeding system on weight loss, gut bacteria, and the physico‐chemical properties of digesta in cattle. New Zealand Journal of Agricultural Research. 43(3). 351–361. 30 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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