{"id":"https://openalex.org/A5112371262","orcid":null,"observed_orcids":[],"display_name":"J.A. Spence","raw_author_names":["J A Spence","J. A. SPENCE","J. A. Spence","J.A. SPENCE","J.A. Spence","JOHN A. SPENCE","John A. Spence","Spence, J. A."],"full_name":"John A. Spence","works_count":31,"cited_by_count":502,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":13,"i10_index":21},"ids":{"openalex":"https://openalex.org/A5112371262","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I2799553609","ror":"https://ror.org/0347fy350","display_name":"Rothamsted Research","country_code":"GB","type":"facility","lineage":["https://openalex.org/I2799553609","https://openalex.org/I2799693246","https://openalex.org/I4210087105"]},"years":[1972]},{"institution":{"id":"https://openalex.org/I36234482","ror":"https://ror.org/0524sp257","display_name":"University of Bristol","country_code":"GB","type":"education","lineage":["https://openalex.org/I36234482"]},"years":[1961]},{"institution":{"id":"https://openalex.org/I4210088717","ror":"https://ror.org/003kgv736","display_name":"University of the West Indies","country_code":"TT","type":"education","lineage":["https://openalex.org/I137799390","https://openalex.org/I4210088717"]},"years":[1978,1976,1972]},{"institution":{"id":"https://openalex.org/I4210138786","ror":"https://ror.org/047ck1j35","display_name":"Moredun Research Institute","country_code":"GB","type":"facility","lineage":["https://openalex.org/I4210138786"]},"years":[1996,1992,1991,1989,1988,1987,1985,1984,1982,1981,1980]},{"institution":{"id":"https://openalex.org/I98677209","ror":"https://ror.org/01nrxwf90","display_name":"University of Edinburgh","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]},"years":[1990]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T10257","display_name":"Oral microbiology and periodontitis research","count":8,"subfield":{"id":"https://openalex.org/subfields/3506","display_name":"Periodontics"},"field":{"id":"https://openalex.org/fields/35","display_name":"Dentistry"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10825","display_name":"Plant Pathogens and Fungal Diseases","count":4,"subfield":{"id":"https://openalex.org/subfields/1307","display_name":"Cell Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11688","display_name":"Microbial infections and disease research","count":4,"subfield":{"id":"https://openalex.org/subfields/2404","display_name":"Microbiology"},"field":{"id":"https://openalex.org/fields/24","display_name":"Immunology and Microbiology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13069","display_name":"Cocoa and Sweet Potato Agronomy","count":4,"subfield":{"id":"https://openalex.org/subfields/1108","display_name":"Horticulture"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10098","display_name":"Ruminant Nutrition and Digestive Physiology","count":3,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13069","display_name":"Cocoa and Sweet Potato Agronomy","value":7.87e-05,"subfield":{"id":"https://openalex.org/subfields/1108","display_name":"Horticulture"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11771","display_name":"Plant Pathogens and Resistance","value":3.36e-05,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13768","display_name":"Oral and gingival health research","value":3.27e-05,"subfield":{"id":"https://openalex.org/subfields/3611","display_name":"Pharmacy"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12944","display_name":"Animal Nutrition and Health","value":2.38e-05,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T13125","display_name":"Agricultural pest management studies","value":2.02e-05,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"x_concepts":[{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.9488986134529114},{"id":"199343813","wikidata":"https://www.wikidata.org/wiki/Q12128","display_name":"Dentistry","score":0.6857081651687622},{"id":"71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","score":0.6657588481903076},{"id":"59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","score":0.6549147367477417},{"id":"144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","score":0.5039460062980652}],"counts_by_year":[{"year":1957,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1961,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1966,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1967,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1971,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1972,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1975,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1976,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":15},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":6},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":14},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":11},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":17},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":15},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":12},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":1}],"display_name_alternatives":["J A Spence","J. A. SPENCE","J. A. Spence","J.A. SPENCE","J.A. Spence","JOHN A. SPENCE","John A. Spence","Spence, J. A."],"block_key":"j spence","works_api_url":"https://api.openalex.org/works?filter=author.id:A5112371262","updated_date":"2026-10-27T12:30:23","created_date":"2016-06-24T00:00:00"}