{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3509"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3509","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Revisão sistemática do gênero Lachesis Daudin, 1803 (Serpentes: Viperidae: Crotalinae)","abstract":"The genus Lachesis Daudin, 1803 was split-up in six populations in order to evaluate the taxonomic status and the phylogenetic relationships among such taxa. Characters of external morphology and hemipenis were used. The Central American species L. melanocephala and L. stenophrys are recognized as distinct species and had your taxonomic status maintained. The South American species L. muta is recognized as monotypic, without further differentiation in subspecies, based on the results obtained through the phylogenetic and statistical analysis. Such results confirm the independence of the Central American lineages in relation to the South American and are congruent with other studies based on molecular data to infer phylogenetic relationships in Lachesis.","abstract_html":"The genus Lachesis Daudin, 1803 was split-up in six populations in order to evaluate the taxonomic status and the phylogenetic relationships among such taxa. Characters of external morphology and hemipenis were used. The Central American species L. melanocephala and L. stenophrys are recognized as distinct species and had your taxonomic status maintained. The South American species L. muta is recognized as monotypic, without further differentiation in subspecies, based on the results obtained through the phylogenetic and statistical analysis. Such results confirm the independence of the Central American lineages in relation to the South American and are congruent with other studies based on molecular data to infer phylogenetic relationships in Lachesis.","abstract_has_math":false,"creators":["Silva, Daniel Fernandes da"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Fernandes, Ronaldo"],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-09-14","date_published":"2001-09-14","updated_at":"2026-07-24T01:16:04Z","subjects":["Lachesis","Viperidae","Taxonomia","Filogenia"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3509","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Fernandes, Ronaldo"]},{"key":"dc:creator","label":"Author","values":["Silva, Daniel Fernandes da"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-01-18T22:29:07Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:03:32Z"]},{"key":"dc:date.issued","label":"Date","values":["2001-09-14"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Museu Nacional"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Lachesis","Viperidae","Taxonomia","Filogenia"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/3509"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The genus Lachesis Daudin, 1803 was split-up in six populations in order to evaluate the taxonomic status and the phylogenetic relationships among such taxa. Characters of external morphology and hemipenis were used. The Central American species L. melanocephala and L. stenophrys are recognized as distinct species and had your taxonomic status maintained. The South American species L. muta is recognized as monotypic, without further differentiation in subspecies, based on the results obtained through the phylogenetic and statistical analysis. Such results confirm the independence of the Central American lineages in relation to the South American and are congruent with other studies based on molecular data to infer phylogenetic relationships in Lachesis."]},{"key":"dc:title","label":"Title","values":["Revisão sistemática do gênero Lachesis Daudin, 1803 (Serpentes: Viperidae: Crotalinae)"]}]}],"canonical_facts":{"dc:contributor.advisor":["Fernandes, Ronaldo"],"dc:creator":["Silva, Daniel Fernandes da"],"dc:date.accessioned":["2018-01-18T22:29:07Z"],"dc:date.available":["2026-05-16T03:03:32Z"],"dc:date.issued":["2001-09-14"],"dc:description.abstract":["The genus Lachesis Daudin, 1803 was split-up in six populations in order to evaluate the taxonomic status and the phylogenetic relationships among such taxa. Characters of external morphology and hemipenis were used. The Central American species L. melanocephala and L. stenophrys are recognized as distinct species and had your taxonomic status maintained. The South American species L. muta is recognized as monotypic, without further differentiation in subspecies, based on the results obtained through the phylogenetic and statistical analysis. Such results confirm the independence of the Central American lineages in relation to the South American and are congruent with other studies based on molecular data to infer phylogenetic relationships in Lachesis."],"dc:identifier.uri":["http://hdl.handle.net/11422/3509"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Museu Nacional"],"dc:rights":["Acesso Aberto"],"dc:subject":["Lachesis","Viperidae","Taxonomia","Filogenia"],"dc:title":["Revisão sistemática do gênero Lachesis Daudin, 1803 (Serpentes: Viperidae: Crotalinae)"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:04Z"}