Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2087543651', 'doi': 'https://doi.org/10.1016/s0169-5347(97)01290-1', 'title': 'Measuring richness and evenness', 'display_name': 'Measuring richness and evenness', 'publication_year': 1998, 'publication_date': '1998-04-01', 'ids': {'openalex': 'https://openalex.org/W2087543651', 'doi': 'https://doi.org/10.1016/s0169-5347(97)01290-1', 'mag': '2087543651', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/21238245'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0169-5347(97)01290-1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S79131028', 'display_name': 'Trends in Ecology & Evolution', 'issn_l': '0169-5347', 'issn': ['0169-5347', '1872-8383'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5017333664', 'display_name': 'Anne E. Magurran', 'orcid': 'https://orcid.org/0000-0002-0036-2795'}, 'institutions': [{'id': 'https://openalex.org/I16835326', 'display_name': 'University of St Andrews', 'ror': 'https://ror.org/02wn5qz54', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I16835326']}], 'countries': ['GB'], 'is_corresponding': True, 'raw_author_name': 'Anne E Magurran', 'raw_affiliation_strings': ['School of Environmental & Evolutionary Biology, University of St Andrews, St Andrews, Fife, UK KY16 9TS.'], 'affiliations': [{'raw_affiliation_string': 'School of Environmental & Evolutionary Biology, University of St Andrews, St Andrews, Fife, UK KY16 9TS.', 'institution_ids': ['https://openalex.org/I16835326']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': ['https://openalex.org/A5017333664'], 'corresponding_institution_ids': ['https://openalex.org/I16835326'], 'apc_list': {'value': 6830, 'currency': 'USD', 'value_usd': 6830, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 33, 'citation_normalized_percentile': {'value': 0.681481, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 88, 'max': 89}, 'biblio': {'volume': '13', 'issue': '4', 'first_page': '165', 'last_page': '166'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10005', 'display_name': 'Ecology and Vegetation Dynamics Studies', 'score': 0.9996, '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'}}, 'topics': [{'id': 'https://openalex.org/T10005', 'display_name': 'Ecology and Vegetation Dynamics Studies', 'score': 0.9996, '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/T10487', 'display_name': 'Plant and animal studies', 'score': 0.9944, 'subfield': {'id': 'https://openalex.org/subfields/1105', 'display_name': 'Ecology, Evolution, Behavior and Systematics'}, '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/T11913', 'display_name': 'Animal Ecology and Behavior Studies', 'score': 0.9877, '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'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C127937792', 'wikidata': 'https://www.wikidata.org/wiki/Q256069', 'display_name': 'Species evenness', 'level': 3, 'score': 0.91317606}, {'id': 'https://openalex.org/C53565203', 'wikidata': 'https://www.wikidata.org/wiki/Q17146659', 'display_name': 'Species richness', 'level': 2, 'score': 0.88558555}, {'id': 'https://openalex.org/C18903297', 'wikidata': 'https://www.wikidata.org/wiki/Q7150', 'display_name': 'Ecology', 'level': 1, 'score': 0.47589338}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.46225896}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.3459617}, {'id': 'https://openalex.org/C39432304', 'wikidata': 'https://www.wikidata.org/wiki/Q188847', 'display_name': 'Environmental science', 'level': 0, 'score': 0.3292085}], 'mesh': [], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1016/s0169-5347(97)01290-1', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S79131028', 'display_name': 'Trends in Ecology & Evolution', 'issn_l': '0169-5347', 'issn': ['0169-5347', '1872-8383'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320990', 'host_organization_name': 'Elsevier BV', 'host_organization_lineage': ['https://openalex.org/P4310320990'], 'host_organization_lineage_names': ['Elsevier BV'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/21238245', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/15', 'display_name': 'Life on land', 'score': 0.54}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 5, 'referenced_works': ['https://openalex.org/W2003485756', 'https://openalex.org/W2037503630', 'https://openalex.org/W2120108422', 'https://openalex.org/W2321937847', 'https://openalex.org/W4211139864'], 'related_works': ['https://openalex.org/W4242605512', 'https://openalex.org/W3001172718', 'https://openalex.org/W2323266433', 'https://openalex.org/W2275376349', 'https://openalex.org/W2147578509', 'https://openalex.org/W2109458006', 'https://openalex.org/W2100561826', 'https://openalex.org/W2040097006', 'https://openalex.org/W2009099009', 'https://openalex.org/W1990299736'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2087543651', 'counts_by_year': [{'year': 2024, 'cited_by_count': 2}, {'year': 2023, 'cited_by_count': 13}, {'year': 2022, 'cited_by_count': 5}, {'year': 2021, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 3}, {'year': 2013, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-12-17T13:56:12.335313', 'created_date': '2016-06-24'}