J. A. Simpson

739 total citations
34 papers, 587 citations indexed

About

J. A. Simpson is a scholar working on Cell Biology, Plant Science and Nature and Landscape Conservation. According to data from OpenAlex, J. A. Simpson has authored 34 papers receiving a total of 587 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Cell Biology, 12 papers in Plant Science and 10 papers in Nature and Landscape Conservation. Recurrent topics in J. A. Simpson's work include Plant Pathogens and Fungal Diseases (16 papers), Forest ecology and management (9 papers) and Forest Insect Ecology and Management (8 papers). J. A. Simpson is often cited by papers focused on Plant Pathogens and Fungal Diseases (16 papers), Forest ecology and management (9 papers) and Forest Insect Ecology and Management (8 papers). J. A. Simpson collaborates with scholars based in Australia, United Kingdom and United States. J. A. Simpson's co-authors include Christine Stone, Zhihong Xu, Peter K. Ades, W. Kelley Thomas, Daniel M. Borchert, T. B. Sutton, Roger D. Magarey, Manuel Colunga-Garcia, Glenn Fowler and Robert Gittins and has published in prestigious journals such as Nature, Forest Ecology and Management and Canadian Journal of Forest Research.

In The Last Decade

J. A. Simpson

34 papers receiving 510 citations

Peers

J. A. Simpson

ECOLO

NLC

Berthold Metzler Germany

Kequan Pei China

W. S. Dvorak United States

Susie Dunham United States

F. D. Podger Australia

Lukas Bell‐Dereske United States

Anna Wilkinson United Kingdom

J. Paula Wilkie New Zealand

Ivan P. Edwards United States

Jennifer L. Bufford New Zealand

Berthold Metzler Germany

J. A. Simpson

237 ×1.0

159 ×0.7

268 ×1.3

ECOLO

147 ×1.0

NLC

49 ×0.4

Citations per year, relative to J. A. Simpson J. A. Simpson (= 1×) peers Berthold Metzler

Countries citing papers authored by J. A. Simpson

Since Specialization

Citations

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

Fields of papers citing papers by J. A. Simpson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. A. Simpson

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

Simpson, J. A., et al.. (2013). A Novel Spore Collection Device for Sampling Exposure Pathways: A Case Study of Puccinia psidii. Plant Disease. 97(6). 828–834. 6 indexed citations

Xu, Zhihong, et al.. (2002). Effects of nitrogen fertilisation and weed control on nutrition and growth of a four-year old Araucaria cunninghamii plantation in subtropical Australia. JOURNAL OF TROPICAL FOREST SCIENCE. 14(2). 213–222. 12 indexed citations

Simpson, J. A., Zhihong Xu, E. K. S. Nambiar, et al.. (2000). Effects of site management in pine plantations on the coastal lowlands of subtropical Queensland, Australia.. Queensland Department of Agriculture and Fisheries archive of scientific and research publications (Queensland Department of Agriculture and Fisheries). 73–81. 7 indexed citations

Simpson, J. A., et al.. (2000). Management of eucalypt diseases - options and constraints.. 427–444. 7 indexed citations

Simpson, J. A.. (2000). More on mycophagous birds.. 19(2). 49–51. 18 indexed citations

Xu, Zhihong, et al.. (1999). Growth response to fertilisation and recovery of 15N-labelled fertiliser by young hoop pine plantations of subtropical Australia. Nutrient Cycling in Agroecosystems. 54(1). 81–92. 16 indexed citations

Xu, Zhihong, et al.. (1998). Some nutrient dynamics associated with litterfall and litter decomposition in hoop pine plantations of southeast Queensland, Australia. Forest Ecology and Management. 110(1-3). 343–352. 36 indexed citations

Xu, Zhihong, et al.. (1995). Mineral nutrition of slash pine in subtropical Australia. III. Relationships between foliar P concentration and stand growth. Nutrient Cycling in Agroecosystems. 41(2). 109–115. 11 indexed citations

Ades, Peter K. & J. A. Simpson. (1991). Variation in susceptibility to Dothistroma needle blight among provenances of Pinus radiata var. radiata.. Silvae genetica. 40(1). 6–13. 20 indexed citations

10.

Stone, Christine & J. A. Simpson. (1991). EFFECT OF SIX CHEMICALS ON THE INSECTS, MITES, NEMATODES AND FUNGI ASSOCIATED WITH IPS GRANDICOLLIS (EICHHOFF) (COLEOPTERA: SCOLYTIDAE) IN NORTHEASTERN NEW SOUTH WALES. Australian Journal of Entomology. 30(1). 21–28. 10 indexed citations

11.

Simpson, J. A. & Peter K. Ades. (1990). Variation in susceptibility of Pinus muricata and Pinus radiata to two species of Aphidoidae.. Silvae genetica. 39. 202–206. 4 indexed citations

12.

Simpson, J. A. & Peter K. Ades. (1990). Screening Pinus radiata families and clones for disease and pest insect resistance. Australian Forestry. 53(3). 194–199. 7 indexed citations

13.

Stone, Christine & J. A. Simpson. (1990). SPECIES ASSOCIATIONS IN IPS GRANDICOLLIS GALLERIES IN PINUS TAEDA. New Zealand journal of forestry science. 20(1). 75–96. 23 indexed citations

14.

Ades, Peter K. & J. A. Simpson. (1990). Clonal selection for resistance to Dothistroma needle blight in Pinus radiata. New Forests. 4(1). 27–35. 12 indexed citations

15.

Simpson, J. A., et al.. (1987). Development of contingency plans for use against exotic pests and diseases of trees and timber. Australian Forestry. 50(1). 24–36. 23 indexed citations

16.

Stone, Christine & J. A. Simpson. (1987). Influence ofIps grandicollison the incidence and spread of bluestain fungi inPinus elliottiibillets in north-eastern New South Wales. Australian Forestry. 50(2). 86–94. 11 indexed citations

17.

Simpson, J. A., et al.. (1985). Effects of low intensity prescribed fire on the growth and nutrition of a slash pine plantation.. 15(1). 67–77. 15 indexed citations

18.

Shoemaker, R. A. & J. A. Simpson. (1981). A new species of Pestalosphaeria on pine with comments on the generic placement of the anamorph. Canadian Journal of Botany. 59(6). 986–991. 9 indexed citations

19.

Simpson, J. A.. (1978). Heterobasidion annosum on Araucaria cunninghamii in Papua New Guinea.. The Plant disease reporter. 62(5). 404–405. 2 indexed citations

20.

Price, T. V., Julia A. Baldwin, & J. A. Simpson. (1978). Fungal club-heads in Papua New Guinea. Nature. 273(5661). 374–375. 1 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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