{"id":"https://openalex.org/A5068990402","orcid":null,"observed_orcids":[],"display_name":"David W. Ehrenfeld","raw_author_names":["D. Ehrenfeld","D. W. Ehrenfeld","D.W. Ehrenfeld","DAVID W. EHRENFELD","David Ehrenfeld","David W. Ehrenfeld"],"full_name":"David W. Ehrenfeld","works_count":156,"cited_by_count":1744,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":21,"i10_index":26},"ids":{"openalex":"https://openalex.org/A5068990402","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I102322142","ror":"https://ror.org/05vt9qd57","display_name":"Rutgers, The State University of New Jersey","country_code":"US","type":"education","lineage":["https://openalex.org/I102322142"]},"years":[2008,2002,1995,1994,1990]},{"institution":{"id":"https://openalex.org/I33213144","ror":"https://ror.org/02y3ad647","display_name":"University of Florida","country_code":"US","type":"education","lineage":["https://openalex.org/I33213144"]},"years":[1969,1968,1967]},{"institution":{"id":"https://openalex.org/I78577930","ror":"https://ror.org/00hj8s172","display_name":"Columbia University","country_code":"US","type":"education","lineage":["https://openalex.org/I78577930"]},"years":[1973,1972]},{"institution":{"id":"https://openalex.org/I98540497","ror":"https://ror.org/04rt94r53","display_name":"Barnard College","country_code":"US","type":"education","lineage":["https://openalex.org/I98540497"]},"years":[1973,1972]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T13967","display_name":"Conservation, Ecology, Wildlife Education","count":37,"subfield":{"id":"https://openalex.org/subfields/2308","display_name":"Management, Monitoring, Policy and Law"},"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/T12819","display_name":"Environmental Philosophy and Ethics","count":29,"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/T10199","display_name":"Wildlife Ecology and Conservation","count":17,"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/T12837","display_name":"American Environmental and Regional History","count":13,"subfield":{"id":"https://openalex.org/subfields/2308","display_name":"Management, Monitoring, Policy and Law"},"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/T11656","display_name":"Turtle Biology and Conservation","count":12,"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"}}],"topic_share":[{"id":"https://openalex.org/T13967","display_name":"Conservation, Ecology, Wildlife Education","value":0.0003474,"subfield":{"id":"https://openalex.org/subfields/2308","display_name":"Management, Monitoring, Policy and Law"},"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/T11656","display_name":"Turtle Biology and Conservation","value":0.0002231,"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/T12819","display_name":"Environmental Philosophy and Ethics","value":0.0002132,"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/T14173","display_name":"Education, Healthcare and Sociology Research","value":0.0002129,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13469","display_name":"Environmental, Ecological, and Cultural Studies","value":0.0001837,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"x_concepts":[{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.7375282645225525},{"id":"138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","score":0.6153169870376587},{"id":"142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","score":0.5744907855987549},{"id":"95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","score":0.5451052784919739},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.5084323287010193}],"counts_by_year":[{"year":1957,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1958,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1967,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1968,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1969,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1973,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1974,"works_count":2,"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":1979,"works_count":1,"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":1,"oa_works_count":0,"cited_by_count":0},{"year":1985,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1986,"works_count":1,"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":2,"oa_works_count":1,"cited_by_count":0},{"year":1989,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1990,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":1991,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1992,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1993,"works_count":21,"oa_works_count":1,"cited_by_count":0},{"year":1994,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1995,"works_count":6,"oa_works_count":0,"cited_by_count":0},{"year":1996,"works_count":2,"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":1,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":35,"oa_works_count":1,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2006,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":42,"oa_works_count":1,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2013,"works_count":4,"oa_works_count":0,"cited_by_count":62},{"year":2014,"works_count":2,"oa_works_count":0,"cited_by_count":43},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":49},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":55},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":48},{"year":2020,"works_count":1,"oa_works_count":0,"cited_by_count":40},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":30},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":36},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":49},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":69},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":4}],"display_name_alternatives":["D. Ehrenfeld","D. W. Ehrenfeld","D.W. Ehrenfeld","DAVID W. EHRENFELD","David Ehrenfeld","David W. Ehrenfeld"],"block_key":"d ehrenfeld","works_api_url":"https://api.openalex.org/works?filter=author.id:A5068990402","updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}