{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3042"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3042","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Variação morfométrica e citogenética em Kerodon rupestris (Wied, 1820) (Rodentia: Caviidae)","abstract":"Kerodon rupestris Wied, 1820) is a specie of caviídeo bearer of great corporal proportions and considered a habitat specialist inside of the group. Since the Pleistocene this specie has had its space distribution restricted to the Brazilian semi-arid area where is confined to rock islands. Three methodological approaches were adopted to define this pattern: 1) a sexual and cranial qualitative morfometric variability analysis inside of a recent population and a sub-fossil that later on was complemented by 2) a geographical analysis, also based on cranial characters, of nine recent populations spread along the geographical distribution of the specie, besides the population of sub-fossils and a population of K. acrobat; and 3) a comparative karyotype analysis among three populations of K. rupestris. The morphological and karyotypes evidences suggest that: a) a significant geographical variation takes place; b) morphologically, the sub-fossils specimens present cranial medium values larger than the recent individuals at the same age; c) a clinal increment variation of cranial dimensions in geographical north-south direction, among the populations of K. rupestris studied occur; d) there is a complete discrimination in the population of K. acrobat in the multivariate space of the cranial morphologic characters, not putting upon to the cline found in K. rupestris; e) there are two chromosomic forms for K. rupestris manifested by the differences obtained in the number and in the chromosomal morphology; f) there is a similarity for C-Band among the three populations of K. rupestris appraised; g) the Botumirim population in the southern of K. rupestris distribution is bearer of the karyotype, so far known, closer of the locality type defined by WIED 1820); and h) the morphological and karyotypes characteristics of the specimens from Botumirim (MG) differ from other populations of K. rupestris studied. To elucidate these differences found, an indicative of a complexity variation, it will be necessary new analyses, with a larger number of populations of K. rupestris along its geographical distribution.","abstract_html":"Kerodon rupestris Wied, 1820) is a specie of caviídeo bearer of great corporal proportions and considered a habitat specialist inside of the group. Since the Pleistocene this specie has had its space distribution restricted to the Brazilian semi-arid area where is confined to rock islands. Three methodological approaches were adopted to define this pattern: 1) a sexual and cranial qualitative morfometric variability analysis inside of a recent population and a sub-fossil that later on was complemented by 2) a geographical analysis, also based on cranial characters, of nine recent populations spread along the geographical distribution of the specie, besides the population of sub-fossils and a population of K. acrobat; and 3) a comparative karyotype analysis among three populations of K. rupestris. The morphological and karyotypes evidences suggest that: a) a significant geographical variation takes place; b) morphologically, the sub-fossils specimens present cranial medium values larger than the recent individuals at the same age; c) a clinal increment variation of cranial dimensions in geographical north-south direction, among the populations of K. rupestris studied occur; d) there is a complete discrimination in the population of K. acrobat in the multivariate space of the cranial morphologic characters, not putting upon to the cline found in K. rupestris; e) there are two chromosomic forms for K. rupestris manifested by the differences obtained in the number and in the chromosomal morphology; f) there is a similarity for C-Band among the three populations of K. rupestris appraised; g) the Botumirim population in the southern of K. rupestris distribution is bearer of the karyotype, so far known, closer of the locality type defined by WIED 1820); and h) the morphological and karyotypes characteristics of the specimens from Botumirim (MG) differ from other populations of K. rupestris studied. To elucidate these differences found, an indicative of a complexity variation, it will be necessary new analyses, with a larger number of populations of K. rupestris along its geographical distribution.","abstract_has_math":false,"creators":["Giúdice, Gisele Mendes Lessa del"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Pessôa, Leila Maria"],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004","date_published":"2004","updated_at":"2026-07-24T01:15:59Z","subjects":["Kerodon rupestris","Roedores","Caviidae"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3042","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Pessôa, Leila Maria"]},{"key":"dc:creator","label":"Author","values":["Giúdice, Gisele Mendes Lessa del"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2017-10-18T22:06:05Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:04:08Z"]},{"key":"dc:date.issued","label":"Date","values":["2004"]},{"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":["Tese"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Kerodon rupestris","Roedores","Caviidae"]}]},{"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/11422/3042"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Kerodon rupestris Wied, 1820) is a specie of caviídeo bearer of great corporal proportions and considered a habitat specialist inside of the group. Since the Pleistocene this specie has had its space distribution restricted to the Brazilian semi-arid area where is confined to rock islands. Three methodological approaches were adopted to define this pattern: 1) a sexual and cranial qualitative morfometric variability analysis inside of a recent population and a sub-fossil that later on was complemented by 2) a geographical analysis, also based on cranial characters, of nine recent populations spread along the geographical distribution of the specie, besides the population of sub-fossils and a population of K. acrobat; and 3) a comparative karyotype analysis among three populations of K. rupestris. The morphological and karyotypes evidences suggest that: a) a significant geographical variation takes place; b) morphologically, the sub-fossils specimens present cranial medium values larger than the recent individuals at the same age; c) a clinal increment variation of cranial dimensions in geographical north-south direction, among the populations of K. rupestris studied occur; d) there is a complete discrimination in the population of K. acrobat in the multivariate space of the cranial morphologic characters, not putting upon to the cline found in K. rupestris; e) there are two chromosomic forms for K. rupestris manifested by the differences obtained in the number and in the chromosomal morphology; f) there is a similarity for C-Band among the three populations of K. rupestris appraised; g) the Botumirim population in the southern of K. rupestris distribution is bearer of the karyotype, so far known, closer of the locality type defined by WIED 1820); and h) the morphological and karyotypes characteristics of the specimens from Botumirim (MG) differ from other populations of K. rupestris studied. To elucidate these differences found, an indicative of a complexity variation, it will be necessary new analyses, with a larger number of populations of K. rupestris along its geographical distribution."]},{"key":"dc:title","label":"Title","values":["Variação morfométrica e citogenética em Kerodon rupestris (Wied, 1820) (Rodentia: Caviidae)"]}]}],"canonical_facts":{"dc:contributor.advisor":["Pessôa, Leila Maria"],"dc:creator":["Giúdice, Gisele Mendes Lessa del"],"dc:date.accessioned":["2017-10-18T22:06:05Z"],"dc:date.available":["2026-05-16T03:04:08Z"],"dc:date.issued":["2004"],"dc:description.abstract":["Kerodon rupestris Wied, 1820) is a specie of caviídeo bearer of great corporal proportions and considered a habitat specialist inside of the group. Since the Pleistocene this specie has had its space distribution restricted to the Brazilian semi-arid area where is confined to rock islands. Three methodological approaches were adopted to define this pattern: 1) a sexual and cranial qualitative morfometric variability analysis inside of a recent population and a sub-fossil that later on was complemented by 2) a geographical analysis, also based on cranial characters, of nine recent populations spread along the geographical distribution of the specie, besides the population of sub-fossils and a population of K. acrobat; and 3) a comparative karyotype analysis among three populations of K. rupestris. The morphological and karyotypes evidences suggest that: a) a significant geographical variation takes place; b) morphologically, the sub-fossils specimens present cranial medium values larger than the recent individuals at the same age; c) a clinal increment variation of cranial dimensions in geographical north-south direction, among the populations of K. rupestris studied occur; d) there is a complete discrimination in the population of K. acrobat in the multivariate space of the cranial morphologic characters, not putting upon to the cline found in K. rupestris; e) there are two chromosomic forms for K. rupestris manifested by the differences obtained in the number and in the chromosomal morphology; f) there is a similarity for C-Band among the three populations of K. rupestris appraised; g) the Botumirim population in the southern of K. rupestris distribution is bearer of the karyotype, so far known, closer of the locality type defined by WIED 1820); and h) the morphological and karyotypes characteristics of the specimens from Botumirim (MG) differ from other populations of K. rupestris studied. To elucidate these differences found, an indicative of a complexity variation, it will be necessary new analyses, with a larger number of populations of K. rupestris along its geographical distribution."],"dc:identifier.uri":["http://hdl.handle.net/11422/3042"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Museu Nacional"],"dc:rights":["Acesso Aberto"],"dc:subject":["Kerodon rupestris","Roedores","Caviidae"],"dc:title":["Variação morfométrica e citogenética em Kerodon rupestris (Wied, 1820) (Rodentia: Caviidae)"],"dc:type":["Tese"]},"updated_at":"2026-07-24T01:15:59Z"}