{"id":"https://openalex.org/A5014489274","orcid":"https://orcid.org/0000-0003-0487-9385","observed_orcids":["https://orcid.org/0000-0003-0487-9385"],"display_name":"J. A. Day","raw_author_names":["Day, J.A.","Day, Jennifer","J A Day","J DAY","J Day","J. A. DAY","J. A. Day","J. DAY","J. Day","J.A. Day","JENNIFER A. DAY","Jennifer A Day","Jennifer A. Day","Jennifer Day"],"full_name":"Jennifer A Day","works_count":39,"cited_by_count":1010,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":19,"i10_index":28},"ids":{"openalex":"https://openalex.org/A5014489274","orcid":"https://orcid.org/0000-0003-0487-9385","observed_orcids":["https://orcid.org/0000-0003-0487-9385"]},"affiliations":[{"institution":{"id":"https://openalex.org/I157614274","ror":"https://ror.org/03p74gp79","display_name":"University of Cape Town","country_code":"ZA","type":"education","lineage":["https://openalex.org/I157614274"]},"years":[2018,2016,2013,2012,2011,2010,2008,2007,2004,2002,1999,1998,1995,1993,1991,1990,1988,1987,1986,1984,1970,1969]},{"institution":{"id":"https://openalex.org/I241749","ror":"https://ror.org/013meh722","display_name":"University of Cambridge","country_code":"GB","type":"education","lineage":["https://openalex.org/I241749"]},"years":[2009]}],"last_known_institutions":[{"id":"https://openalex.org/I157614274","ror":"https://ror.org/03p74gp79","display_name":"University of Cape Town","country_code":"ZA","type":"education","lineage":["https://openalex.org/I157614274"]}],"topics":[{"id":"https://openalex.org/T10669","display_name":"Freshwater macroinvertebrate diversity and ecology","count":11,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10447","display_name":"Environmental Toxicology and Ecotoxicology","count":7,"subfield":{"id":"https://openalex.org/subfields/2307","display_name":"Health, Toxicology and Mutagenesis"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12773","display_name":"Water Quality and Resources Studies","count":6,"subfield":{"id":"https://openalex.org/subfields/2312","display_name":"Water Science and Technology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10302","display_name":"Fish Ecology and Management Studies","count":5,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10398","display_name":"Groundwater and Isotope Geochemistry","count":5,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13490","display_name":"Aquatic Ecosystems and Biodiversity","value":5.03e-05,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10669","display_name":"Freshwater macroinvertebrate diversity and ecology","value":4.53e-05,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14359","display_name":"Wetland Management and Conservation","value":3.36e-05,"subfield":{"id":"https://openalex.org/subfields/2309","display_name":"Nature and Landscape Conservation"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11311","display_name":"Soil and Water Nutrient Dynamics","value":2.52e-05,"subfield":{"id":"https://openalex.org/subfields/2304","display_name":"Environmental Chemistry"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12073","display_name":"Isotope Analysis in Ecology","value":2.34e-05,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.775164008140564},{"id":"18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","score":0.7434824109077454},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.6489500999450684},{"id":"205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","score":0.6350246667861938},{"id":"127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","score":0.49915218353271484}],"counts_by_year":[{"year":1969,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1970,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1986,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1988,"works_count":2,"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":1993,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1998,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1999,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2007,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":54},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":59},{"year":2014,"works_count":1,"oa_works_count":1,"cited_by_count":34},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2016,"works_count":2,"oa_works_count":0,"cited_by_count":37},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":38},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":48},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":55},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":52},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":46},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":28},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":41},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":39},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":27},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":31}],"display_name_alternatives":["Day, J.A.","Day, Jennifer","J A Day","J DAY","J Day","J. A. DAY","J. A. Day","J. DAY","J. Day","J.A. Day","JENNIFER A. DAY","Jennifer A Day","Jennifer A. Day","Jennifer Day"],"block_key":"j day","works_api_url":"https://api.openalex.org/works?filter=author.id:A5014489274","updated_date":"2026-11-07T12:08:38","created_date":"2016-06-24T00:00:00"}