Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2075040375', 'doi': 'https://doi.org/10.1371/journal.pone.0005048', 'title': 'Non-Destructive Sampling of Ancient Insect DNA', 'display_name': 'Non-Destructive Sampling of Ancient Insect DNA', 'publication_year': 2009, 'publication_date': '2009-03-31', 'ids': {'openalex': 'https://openalex.org/W2075040375', 'doi': 'https://doi.org/10.1371/journal.pone.0005048', 'mag': '2075040375', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/19337382', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/2660418'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1371/journal.pone.0005048', 'pdf_url': 'https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0005048&type=printable', 'source': {'id': 'https://openalex.org/S202381698', 'display_name': 'PLoS ONE', 'issn_l': '1932-6203', 'issn': ['1932-6203'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315706', 'host_organization_name': 'Public Library of Science', 'host_organization_lineage': ['https://openalex.org/P4310315706'], 'host_organization_lineage_names': ['Public Library of Science'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'doaj', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'gold', 'oa_url': 'https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0005048&type=printable', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5054437403', 'display_name': 'Philip Francis Thomsen', 'orcid': 'https://orcid.org/0000-0002-9867-4366'}, 'institutions': [{'id': 'https://openalex.org/I4210110903', 'display_name': 'Natural History Museum Aarhus', 'ror': 'https://ror.org/0166x0j30', 'country_code': 'DK', 'type': 'archive', 'lineage': ['https://openalex.org/I4210110903']}, {'id': 'https://openalex.org/I124055696', 'display_name': 'University of Copenhagen', 'ror': 'https://ror.org/035b05819', 'country_code': 'DK', 'type': 'education', 'lineage': ['https://openalex.org/I124055696']}], 'countries': ['DK'], 'is_corresponding': True, 'raw_author_name': 'Philip Francis Thomsen', 'raw_affiliation_strings': ['Centre for Ancient Genetics and Environments, Natural History Museum and Institute of Biology, University of Copenhagen, Copenhagen, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Centre for Ancient Genetics and Environments, Natural History Museum and Institute of Biology, University of Copenhagen, Copenhagen, Denmark', 'institution_ids': ['https://openalex.org/I4210110903', 'https://openalex.org/I124055696']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5075497589', 'display_name': 'Scott A. Elias', 'orcid': 'https://orcid.org/0000-0002-1498-1060'}, 'institutions': [{'id': 'https://openalex.org/I184558857', 'display_name': 'Royal Holloway University of London', 'ror': 'https://ror.org/04g2vpn86', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I124357947', 'https://openalex.org/I184558857']}], 'countries': ['GB'], 'is_corresponding': True, 'raw_author_name': 'Scott Elias', 'raw_affiliation_strings': ['Geography Department, Royal Holloway, University of London, Egham, Surrey, United Kingdom'], 'affiliations': [{'raw_affiliation_string': 'Geography Department, Royal Holloway, University of London, Egham, Surrey, United Kingdom', 'institution_ids': ['https://openalex.org/I184558857']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5053180525', 'display_name': 'M. Thomas P. Gilbert', 'orcid': 'https://orcid.org/0000-0002-5805-7195'}, 'institutions': [{'id': 'https://openalex.org/I4210110903', 'display_name': 'Natural History Museum Aarhus', 'ror': 'https://ror.org/0166x0j30', 'country_code': 'DK', 'type': 'archive', 'lineage': ['https://openalex.org/I4210110903']}, {'id': 'https://openalex.org/I124055696', 'display_name': 'University of Copenhagen', 'ror': 'https://ror.org/035b05819', 'country_code': 'DK', 'type': 'education', 'lineage': ['https://openalex.org/I124055696']}], 'countries': ['DK'], 'is_corresponding': True, 'raw_author_name': 'M. Thomas P. Gilbert', 'raw_affiliation_strings': ['Centre for Ancient Genetics and Environments, Natural History Museum and Institute of Biology, University of Copenhagen, Copenhagen, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Centre for Ancient Genetics and Environments, Natural History Museum and Institute of Biology, University of Copenhagen, Copenhagen, Denmark', 'institution_ids': ['https://openalex.org/I4210110903', 'https://openalex.org/I124055696']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5035975421', 'display_name': 'James Haile', 'orcid': 'https://orcid.org/0000-0002-8521-8337'}, 'institutions': [{'id': 'https://openalex.org/I40120149', 'display_name': 'University of Oxford', 'ror': 'https://ror.org/052gg0110', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I40120149']}], 'countries': ['GB'], 'is_corresponding': True, 'raw_author_name': 'James Haile', 'raw_affiliation_strings': ['Henry Wellcome Ancient Biomolecules Centre, Department of Zoology, University of Oxford, Oxford, United Kingdom'], 'affiliations': [{'raw_affiliation_string': 'Henry Wellcome Ancient Biomolecules Centre, Department of Zoology, University of Oxford, Oxford, United Kingdom', 'institution_ids': ['https://openalex.org/I40120149']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5091503957', 'display_name': 'Kasper Munch', 'orcid': 'https://orcid.org/0000-0003-2880-6252'}, 'institutions': [{'id': 'https://openalex.org/I95457486', 'display_name': 'University of California, Berkeley', 'ror': 'https://ror.org/01an7q238', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I95457486']}], 'countries': ['US'], 'is_corresponding': True, 'raw_author_name': 'Kasper Munch', 'raw_affiliation_strings': ['Department of Integrative Biology, University of California, Berkeley, California, United States of America'], 'affiliations': [{'raw_affiliation_string': 'Department of Integrative Biology, University of California, Berkeley, California, United States of America', 'institution_ids': ['https://openalex.org/I95457486']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5004348315', 'display_name': 'Svetlana Kuzmina', 'orcid': 'https://orcid.org/0000-0002-3020-7868'}, 'institutions': [{'id': 'https://openalex.org/I154425047', 'display_name': 'University of Alberta', 'ror': 'https://ror.org/0160cpw27', 'country_code': 'CA', 'type': 'education', 'lineage': ['https://openalex.org/I154425047']}], 'countries': ['CA'], 'is_corresponding': True, 'raw_author_name': 'Svetlana Kuzmina', 'raw_affiliation_strings': ['Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada'], 'affiliations': [{'raw_affiliation_string': 'Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada', 'institution_ids': ['https://openalex.org/I154425047']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5024966932', 'display_name': 'Duane G. Froese', 'orcid': 'https://orcid.org/0000-0003-1032-5944'}, 'institutions': [{'id': 'https://openalex.org/I154425047', 'display_name': 'University of Alberta', 'ror': 'https://ror.org/0160cpw27', 'country_code': 'CA', 'type': 'education', 'lineage': ['https://openalex.org/I154425047']}], 'countries': ['CA'], 'is_corresponding': True, 'raw_author_name': 'Duane G. Froese', 'raw_affiliation_strings': ['Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada'], 'affiliations': [{'raw_affiliation_string': 'Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada', 'institution_ids': ['https://openalex.org/I154425047']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5112921849', 'display_name': 'Andrei Sher', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210149923', 'display_name': 'Severtsov Institute of Ecology and Evolution', 'ror': 'https://ror.org/0577sef82', 'country_code': 'RU', 'type': 'facility', 'lineage': ['https://openalex.org/I1313323035', 'https://openalex.org/I4210129690', 'https://openalex.org/I4210149923']}], 'countries': ['RU'], 'is_corresponding': True, 'raw_author_name': 'Andrei Sher', 'raw_affiliation_strings': ['Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia'], 'affiliations': [{'raw_affiliation_string': 'Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia', 'institution_ids': ['https://openalex.org/I4210149923']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5048379310', 'display_name': 'Richard N. Holdaway', 'orcid': 'https://orcid.org/0000-0002-0297-9676'}, 'institutions': [{'id': 'https://openalex.org/I185492890', 'display_name': 'University of Canterbury', 'ror': 'https://ror.org/03y7q9t39', 'country_code': 'NZ', 'type': 'education', 'lineage': ['https://openalex.org/I185492890']}], 'countries': ['NZ'], 'is_corresponding': True, 'raw_author_name': 'Richard N. Holdaway', 'raw_affiliation_strings': ['Palaecol Research Ltd, Christchurch, New Zealand', 'School of Biological Sciences, University of Canterbury, Christchurch, New Zealand'], 'affiliations': [{'raw_affiliation_string': 'Palaecol Research Ltd, Christchurch, New Zealand', 'institution_ids': []}, {'raw_affiliation_string': 'School of Biological Sciences, University of Canterbury, Christchurch, New Zealand', 'institution_ids': ['https://openalex.org/I185492890']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5028667558', 'display_name': 'Eske Willerslev', 'orcid': 'https://orcid.org/0000-0002-7081-6748'}, 'institutions': [{'id': 'https://openalex.org/I124055696', 'display_name': 'University of Copenhagen', 'ror': 'https://ror.org/035b05819', 'country_code': 'DK', 'type': 'education', 'lineage': ['https://openalex.org/I124055696']}, {'id': 'https://openalex.org/I4210110903', 'display_name': 'Natural History Museum Aarhus', 'ror': 'https://ror.org/0166x0j30', 'country_code': 'DK', 'type': 'archive', 'lineage': ['https://openalex.org/I4210110903']}], 'countries': ['DK'], 'is_corresponding': True, 'raw_author_name': 'Eske Willerslev', 'raw_affiliation_strings': ['Centre for Ancient Genetics and Environments, Natural History Museum and Institute of Biology, University of Copenhagen, Copenhagen, Denmark'], 'affiliations': [{'raw_affiliation_string': 'Centre for Ancient Genetics and Environments, Natural History Museum and Institute of Biology, University of Copenhagen, Copenhagen, Denmark', 'institution_ids': ['https://openalex.org/I124055696', 'https://openalex.org/I4210110903']}]}], 'institution_assertions': [], 'countries_distinct_count': 6, 'institutions_distinct_count': 8, 'corresponding_author_ids': ['https://openalex.org/A5054437403', 'https://openalex.org/A5075497589', 'https://openalex.org/A5053180525', 'https://openalex.org/A5035975421', 'https://openalex.org/A5091503957', 'https://openalex.org/A5004348315', 'https://openalex.org/A5024966932', 'https://openalex.org/A5112921849', 'https://openalex.org/A5048379310', 'https://openalex.org/A5028667558'], 'corresponding_institution_ids': ['https://openalex.org/I4210110903', 'https://openalex.org/I124055696', 'https://openalex.org/I184558857', 'https://openalex.org/I4210110903', 'https://openalex.org/I124055696', 'https://openalex.org/I40120149', 'https://openalex.org/I95457486', 'https://openalex.org/I154425047', 'https://openalex.org/I154425047', 'https://openalex.org/I4210149923', 'https://openalex.org/I185492890', 'https://openalex.org/I124055696', 'https://openalex.org/I4210110903'], 'apc_list': {'value': 1805, 'currency': 'USD', 'value_usd': 1805, 'provenance': 'doaj'}, 'apc_paid': {'value': 1805, 'currency': 'USD', 'value_usd': 1805, 'provenance': 'doaj'}, 'fwci': 5.737, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 119, 'citation_normalized_percentile': {'value': 0.999946, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 97, 'max': 98}, 'biblio': {'volume': '4', 'issue': '4', 'first_page': 'e5048', 'last_page': 'e5048'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12640', 'display_name': 'Environmental DNA in Biodiversity Studies', 'score': 0.9996, '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'}}, 'topics': [{'id': 'https://openalex.org/T12640', 'display_name': 'Environmental DNA in Biodiversity Studies', 'score': 0.9996, '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/T12073', 'display_name': 'Isotope Analysis in Ecology', 'score': 0.9974, '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/T10012', 'display_name': 'Genetic diversity and population structure', 'score': 0.9861, 'subfield': {'id': 'https://openalex.org/subfields/1311', 'display_name': 'Genetics'}, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/ancient-dna', 'display_name': 'Ancient DNA', 'score': 0.9527555}, {'id': 'https://openalex.org/keywords/macrofossil', 'display_name': 'Macrofossil', 'score': 0.46818602}], 'concepts': [{'id': 'https://openalex.org/C189338579', 'wikidata': 'https://www.wikidata.org/wiki/Q290447', 'display_name': 'Ancient DNA', 'level': 3, 'score': 0.9527555}, {'id': 'https://openalex.org/C24586158', 'wikidata': 'https://www.wikidata.org/wiki/Q27075', 'display_name': 'Mitochondrial DNA', 'level': 3, 'score': 0.67885256}, {'id': 'https://openalex.org/C2777612826', 'wikidata': 'https://www.wikidata.org/wiki/Q1390', 'display_name': 'Insect', 'level': 2, 'score': 0.6609875}, {'id': 'https://openalex.org/C78063203', 'wikidata': 'https://www.wikidata.org/wiki/Q3062596', 'display_name': 'DNA extraction', 'level': 4, 'score': 0.60018265}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.5962513}, {'id': 'https://openalex.org/C25868968', 'wikidata': 'https://www.wikidata.org/wiki/Q1163945', 'display_name': 'Macrofossil', 'level': 3, 'score': 0.46818602}, {'id': 'https://openalex.org/C130217890', 'wikidata': 'https://www.wikidata.org/wiki/Q47041', 'display_name': 'Biodiversity', 'level': 2, 'score': 0.43072087}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.41300195}, {'id': 'https://openalex.org/C78458016', 'wikidata': 'https://www.wikidata.org/wiki/Q840400', 'display_name': 'Evolutionary biology', 'level': 1, 'score': 0.3873877}, {'id': 'https://openalex.org/C90856448', 'wikidata': 'https://www.wikidata.org/wiki/Q431', 'display_name': 'Zoology', 'level': 1, 'score': 0.3646388}, {'id': 'https://openalex.org/C166957645', 'wikidata': 'https://www.wikidata.org/wiki/Q23498', 'display_name': 'Archaeology', 'level': 1, 'score': 0.3439395}, {'id': 'https://openalex.org/C49105822', 'wikidata': 'https://www.wikidata.org/wiki/Q176996', 'display_name': 'Polymerase chain reaction', 'level': 3, 'score': 0.33192542}, {'id': 'https://openalex.org/C18903297', 'wikidata': 'https://www.wikidata.org/wiki/Q7150', 'display_name': 'Ecology', 'level': 1, 'score': 0.28186697}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.1632024}, {'id': 'https://openalex.org/C104317684', 'wikidata': 'https://www.wikidata.org/wiki/Q7187', 'display_name': 'Gene', 'level': 2, 'score': 0.10605544}, {'id': 'https://openalex.org/C205649164', 'wikidata': 'https://www.wikidata.org/wiki/Q1071', 'display_name': 'Geography', 'level': 0, 'score': 0.102222115}, {'id': 'https://openalex.org/C2908647359', 'wikidata': 'https://www.wikidata.org/wiki/Q2625603', 'display_name': 'Population', 'level': 2, 'score': 0.07507184}, {'id': 'https://openalex.org/C149923435', 'wikidata': 'https://www.wikidata.org/wiki/Q37732', 'display_name': 'Demography', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C144024400', 'wikidata': 'https://www.wikidata.org/wiki/Q21201', 'display_name': 'Sociology', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C140345934', 'wikidata': 'https://www.wikidata.org/wiki/Q25445', 'display_name': 'Holocene', 'level': 2, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D004247', 'descriptor_name': 'DNA', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': True}, {'descriptor_ui': 'D007313', 'descriptor_name': 'Insecta', 'qualifier_ui': 'Q000235', 'qualifier_name': 'genetics', 'is_major_topic': True}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004247', 'descriptor_name': 'DNA', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005580', 'descriptor_name': 'Fossils', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D007313', 'descriptor_name': 'Insecta', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D016133', 'descriptor_name': 'Polymerase Chain Reaction', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013045', 'descriptor_name': 'Species Specificity', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 6, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1371/journal.pone.0005048', 'pdf_url': 'https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0005048&type=printable', 'source': {'id': 'https://openalex.org/S202381698', 'display_name': 'PLoS ONE', 'issn_l': '1932-6203', 'issn': ['1932-6203'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315706', 'host_organization_name': 'Public Library of Science', 'host_organization_lineage': ['https://openalex.org/P4310315706'], 'host_organization_lineage_names': ['Public Library of Science'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://doaj.org/article/c962bdd9f0d54efb8dc65f25dec4899d', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306401280', 'display_name': 'DOAJ (DOAJ: Directory of Open Access Journals)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc2660418', 'pdf_url': 'https://europepmc.org/articles/pmc2660418?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://curis.ku.dk/ws/files/44138149/Non_Destructive_Sampling.pdf', 'pdf_url': 'https://curis.ku.dk/ws/files/44138149/Non_Destructive_Sampling.pdf', 'source': {'id': 'https://openalex.org/S4306401983', 'display_name': 'Research at the University of Copenhagen (University of Copenhagen)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I124055696', 'host_organization_name': 'University of Copenhagen', 'host_organization_lineage': ['https://openalex.org/I124055696'], 'host_organization_lineage_names': ['University of Copenhagen'], 'type': 'repository'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2660418', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, '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': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/19337382', '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': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1371/journal.pone.0005048', 'pdf_url': 'https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0005048&type=printable', 'source': {'id': 'https://openalex.org/S202381698', 'display_name': 'PLoS ONE', 'issn_l': '1932-6203', 'issn': ['1932-6203'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315706', 'host_organization_name': 'Public Library of Science', 'host_organization_lineage': ['https://openalex.org/P4310315706'], 'host_organization_lineage_names': ['Public Library of Science'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'display_name': 'Life on land', 'score': 0.57, 'id': 'https://metadata.un.org/sdg/15'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 28, 'referenced_works': ['https://openalex.org/W1964350046', 'https://openalex.org/W1966762533', 'https://openalex.org/W1979174656', 'https://openalex.org/W1979185805', 'https://openalex.org/W1983431439', 'https://openalex.org/W2008367306', 'https://openalex.org/W2016421580', 'https://openalex.org/W2028126209', 'https://openalex.org/W2034194851', 'https://openalex.org/W2050660384', 'https://openalex.org/W2054770718', 'https://openalex.org/W2057597395', 'https://openalex.org/W2078755520', 'https://openalex.org/W2093732846', 'https://openalex.org/W2109219506', 'https://openalex.org/W2135691213', 'https://openalex.org/W2140855503', 'https://openalex.org/W2141718064', 'https://openalex.org/W2150382231', 'https://openalex.org/W2151920427', 'https://openalex.org/W2153610654', 'https://openalex.org/W2156152312', 'https://openalex.org/W2167692076', 'https://openalex.org/W2168746718', 'https://openalex.org/W2169403284', 'https://openalex.org/W2468066155', 'https://openalex.org/W2520498549', 'https://openalex.org/W4285719527'], 'related_works': ['https://openalex.org/W4237351626', 'https://openalex.org/W2395713400', 'https://openalex.org/W2328898531', 'https://openalex.org/W2166708513', 'https://openalex.org/W2127484011', 'https://openalex.org/W2074095376', 'https://openalex.org/W2063402745', 'https://openalex.org/W2034029879', 'https://openalex.org/W1556099152', 'https://openalex.org/W1534665504'], 'abstract_inverted_index': {'Background': [0], 'A': [1, 24], 'major': [2], 'challenge': [3], 'for': [4, 199], 'ancient': [5, 62, 84, 171, 219], 'DNA': [6, 33, 86, 127, 147, 178, 192], '(aDNA)': [7], 'studies': [8], 'on': [9, 50, 61, 153, 169, 218], 'insect': [10, 36, 85, 141, 154, 173, 205], 'remains': [11, 37, 65, 175], 'is': [12], 'that': [13, 99], 'sampling': [14], 'procedures': [15], 'involve': [16, 103], 'at': [17], 'least': [18], 'partial': [19], 'destruction': [20, 104], 'of': [21, 31, 47, 82, 105, 112, 122, 130, 157, 204], 'the': [22, 29, 45, 80, 113, 170, 201], 'specimens.': [23], 'recent': [25], 'extraction': [26, 148], 'protocol': [27, 49], 'reveals': [28], 'possibility': [30, 81], 'obtaining': [32, 83], 'from': [34, 66, 88, 181], 'past': [35], 'without': [38], 'causing': [39], 'visual': [40], 'morphological': [41], 'damage.': [42], 'We': [43], 'test': [44, 79], 'applicability': [46], 'this': [48], 'historic': [51], 'museum': [52, 155], 'beetle': [53, 63], 'specimens': [54, 156], 'dating': [55, 71], 'back': [56, 72, 162], 'to': [57, 184, 195], 'AD': [58, 164], '1820': [59], 'and': [60, 120, 124, 139, 212], 'chitin': [64], 'permafrost': [67], '(permanently': [68], 'frozen': [69], 'soil)': [70], 'more': [73], 'than': [74], '47,000': [75], 'years.': [76], 'Finally,': [77], 'we': [78], 'directly': [87], 'non-frozen': [89, 190], 'sediments': [90], 'deposited': [91], '3280-1800': [92], 'years': [93, 187], 'ago': [94], '-': [95], 'an': [96], 'alternative': [97], 'approach': [98, 193], 'also': [100], 'does': [101], 'not': [102, 207], 'valuable': [106], 'material.': [107], 'Methodology/Principal': [108], 'Findings': [109], 'The': [110, 144, 189], 'success': [111], 'methodological': [114], 'approaches': [115], 'are': [116], 'tested': [117], 'by': [118], 'PCR': [119], 'sequencing': [121], 'COI': [123], '16S': [125], 'mitochondrial': [126], '(mtDNA)': [128], 'fragments': [129], '77–204': [131], 'base': [132], 'pairs': [133], '(-bp)': [134], 'in': [135, 216], 'size': [136], 'using': [137], 'species-specific': [138], 'general': [140], 'primers.': [142], 'Conclusion/Significance': [143], 'applied': [145], 'non-destructive': [146], 'method': [149], 'shows': [150], 'promising': [151], 'potential': [152, 198], 'historical': [158], 'age': [159], 'as': [160, 163, 210], 'far': [161], '1820,': [165], 'but': [166], 'less': [167], 'so': [168], 'permafrost-preserved': [172], 'fossil': [174], 'tested,': [176], 'where': [177], 'was': [179], 'obtained': [180], 'samples': [182], 'up': [183], 'ca.': [185], '26,000': [186], 'old.': [188], 'sediment': [191], 'appears': [194], 'have': [196], 'great': [197], 'recording': [200], 'former': [202], 'presence': [203], 'taxa': [206], 'normally': [208], 'preserved': [209], 'macrofossils': [211], 'opens': [213], 'new': [214], 'frontiers': [215], 'research': [217], 'biodiversity.': [220]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2075040375', 'counts_by_year': [{'year': 2024, 'cited_by_count': 7}, {'year': 2023, 'cited_by_count': 11}, {'year': 2022, 'cited_by_count': 6}, {'year': 2021, 'cited_by_count': 9}, {'year': 2020, 'cited_by_count': 9}, {'year': 2019, 'cited_by_count': 8}, {'year': 2018, 'cited_by_count': 9}, {'year': 2017, 'cited_by_count': 7}, {'year': 2016, 'cited_by_count': 5}, {'year': 2015, 'cited_by_count': 7}, {'year': 2014, 'cited_by_count': 9}, {'year': 2013, 'cited_by_count': 8}, {'year': 2012, 'cited_by_count': 7}], 'updated_date': '2024-12-11T03:44:15.159385', 'created_date': '2016-06-24'}