{"id":"https://openalex.org/A5000289902","orcid":null,"observed_orcids":[],"display_name":"Nils D. Christoffersen","raw_author_names":["Christoffersen, Nils","Christoffersen, Nils D.","Christoffersen, Nils, author","N. Christoffersen","Nils Christoffersen","Nils D Christoffersen","Nils D. Christoffersen"],"full_name":"Nils D. Christoffersen","works_count":21,"cited_by_count":198,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":7,"i10_index":7},"ids":{"openalex":"https://openalex.org/A5000289902","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210161504","ror":"https://ror.org/04tehfn33","display_name":"International Union for Conservation of Nature","country_code":"CH","type":"nonprofit","lineage":["https://openalex.org/I4210161504"]},"years":[2016]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T11753","display_name":"Forest Management and Policy","count":10,"subfield":{"id":"https://openalex.org/subfields/1107","display_name":"Forestry"},"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/T10319","display_name":"Conservation, Biodiversity, and Resource Management","count":8,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"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/T13502","display_name":"Community and Sustainable Development","count":6,"subfield":{"id":"https://openalex.org/subfields/3303","display_name":"Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11488","display_name":"Climate Change Communication and Perception","count":4,"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"}},{"id":"https://openalex.org/T12118","display_name":"Forest Biomass Utilization and Management","count":3,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13961","display_name":"Socioeconomics of Resources and Conservation","value":4.45e-05,"subfield":{"id":"https://openalex.org/subfields/2002","display_name":"Economics and Econometrics"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11488","display_name":"Climate Change Communication and Perception","value":4.05e-05,"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"}},{"id":"https://openalex.org/T13502","display_name":"Community and Sustainable Development","value":3.48e-05,"subfield":{"id":"https://openalex.org/subfields/3303","display_name":"Development"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12118","display_name":"Forest Biomass Utilization and Management","value":3.47e-05,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10319","display_name":"Conservation, Biodiversity, and Resource Management","value":2.3e-05,"subfield":{"id":"https://openalex.org/subfields/2306","display_name":"Global and Planetary Change"},"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":"205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","score":0.5936509370803833},{"id":"39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","score":0.5627045631408691},{"id":"17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","score":0.5365671515464783},{"id":"18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","score":0.5129356384277344},{"id":"107826830","wikidata":"https://www.wikidata.org/wiki/Q929380","display_name":"Environmental resource management","score":0.46877971291542053}],"counts_by_year":[{"year":1998,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2007,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2008,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":2,"oa_works_count":0,"cited_by_count":3},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":2},{"year":2014,"works_count":1,"oa_works_count":1,"cited_by_count":2},{"year":2015,"works_count":1,"oa_works_count":1,"cited_by_count":4},{"year":2016,"works_count":2,"oa_works_count":1,"cited_by_count":6},{"year":2017,"works_count":2,"oa_works_count":1,"cited_by_count":5},{"year":2018,"works_count":3,"oa_works_count":1,"cited_by_count":13},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":32},{"year":2020,"works_count":1,"oa_works_count":1,"cited_by_count":24},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"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":18},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":21},{"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":12}],"display_name_alternatives":["Christoffersen, Nils","Christoffersen, Nils D.","Christoffersen, Nils, author","N. Christoffersen","Nils Christoffersen","Nils D Christoffersen","Nils D. Christoffersen"],"block_key":"n christoffersen","works_api_url":"https://api.openalex.org/works?filter=author.id:A5000289902","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5000289902","updated_date":"2026-11-08T12:57:04","created_date":"2016-06-24T00:00:00"}