James R. Simpson
- Health, Toxicology and Mutagenesis top 0.5%
- Global and Planetary Change top 2%
- Environmental Engineering top 1%
- Plant Science top 5%
- Nature and Landscape Conservation top 5%
- Co-authors
- E. Gregory McPhersonQingfu XiaoPaula J. PeperQ. XiaoChunxia WuKlaus ScottS.E. MacoGreg McPherson
- Topics
- Urban Green Space and Health (18 papers)Rangeland Management and Livestock Ecology (8 papers)Plant responses to elevated CO2 (8 papers)
- Partner nations
- United StatesUnited KingdomChina
In The Last Decade
James R. Simpson
68 papers receiving 2.2k citations
Hit Papers
Peers
Comparison fields: 5 of 138
- Health, Toxicology and Mutagenesis 1.2k
- Global and Planetary Change 1.2k
- Environmental Engineering 966
- Plant Science 488
- Nature and Landscape Conservation 290
Countries citing papers authored by James R. Simpson
This map shows the geographic impact of James R. Simpson'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 James R. Simpson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James R. Simpson more than expected).
Fields of papers citing papers by James R. Simpson
This network shows the impact of papers produced by James R. Simpson. 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 James R. Simpson. The network helps show where James R. Simpson may publish in the future.
Co-authorship network of co-authors of James R. Simpson
This figure shows the co-authorship network connecting the top 25 collaborators of James R. Simpson. A scholar is included among the top collaborators of James R. Simpson 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 James R. Simpson. James R. Simpson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 0 | |
| 2 | 0 | |
| 3 | Benefits and costs of street trees in Lisbon, Portugalbreakdown → | 199 |
| 4 | City of Charleston, South Carolina Municipal Forest Resource Analysis | 4 |
| 5 | City of San Francisco, California street tree resource analysis | 6 |
| 6 | 150 | |
| 7 | 18 | |
| 8 | 17 | |
| 9 | Tree Guidelines for Inland Empire Communities | 23 |
| 10 | Benefits-cost analysis of Modesto's municipal urban forest | 116 |
| 11 | Conservation of soil fertility under intensive maize cropping in semi-arid eastern Kenya | 6 |
| 12 | 99 | |
| 13 | 31 | |
| 14 | China's Livestock and Related Agriculture: Projections to 2025 | 36 |
| 15 | 1 | |
| 16 | Economics of zeranol in beef cattle production. | 1 |
| 17 | 40 | |
| 18 | Use of an Economic Demographic Simulation Model of Planning in Zaire's Beef Cattle Subsector | 1 |
| 19 | 1 | |
| 20 | 9 |
About James R. Simpson
James R. Simpson is a scholar working on Health, Toxicology and Mutagenesis, General Agricultural and Biological Sciences and Nature and Landscape Conservation, having authored 78 papers that have together received 2.5k indexed citations. Recurring topics across this work include Urban Green Space and Health (18 papers), Rangeland Management and Livestock Ecology (8 papers) and Plant responses to elevated CO2 (8 papers). The work is most often cited by research in Health, Toxicology and Mutagenesis (1.2k citations), Environmental Engineering (966 citations) and Global and Planetary Change (1.2k citations). James R. Simpson has collaborated with scholars based in United States, United Kingdom and China. Frequent co-authors include E. Gregory McPherson, Qingfu Xiao, Paula J. Peper, Q. Xiao, Chunxia Wu, Klaus Scott, S.E. Maco, Greg McPherson, David K. Powelson and Charles P. Gerba. Their work appears in journals such as Applied and Environmental Microbiology, Journal of Business Ethics and Atmospheric Environment.
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.