{"id":{"repo_id":"byu","oai_identifier":"oai:scholarsarchive.byu.edu:etd-1866"},"canonical_url":"https://search.dev.ndltd.org/etd/byu/oai:scholarsarchive.byu.edu:etd-1866","repository":{"repo_id":"byu","name":"Brigham Young University","base_url":"https://scholarsarchive.byu.edu/do/oai/"},"display":{"title":"Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae)","abstract":"Previous studies based on morphological, allozymic and mitochondrial sequence data have indicated that Liomys pictus is paraplyletic relative to L. spectabilis. The purpose of this study was to determine the species boundaries that exist within this complex. I estimated phylogenetic relationships within this complex using sequence data from 1,140 bp of the mitochondrial DNA cytochrome b gene and two nuclear introns from engrailed protein (190 bp) and myosin heavy chain (254 bp) genes for approximately 712 individuals representing 82 localities across the range of L. pictus and L. spectabilis. Maximum parsimony, maximum likelihood, and Bayesian analyses suggest that there are six species within the L. pictus complex using the Weins-Penkrot approach and Templeton's cohesion test for delimitating species whereas previously only two have been recognized.","abstract_html":"Previous studies based on morphological, allozymic and mitochondrial sequence data have indicated that Liomys pictus is paraplyletic relative to L. spectabilis. The purpose of this study was to determine the species boundaries that exist within this complex. I estimated phylogenetic relationships within this complex using sequence data from 1,140 bp of the mitochondrial DNA cytochrome b gene and two nuclear introns from engrailed protein (190 bp) and myosin heavy chain (254 bp) genes for approximately 712 individuals representing 82 localities across the range of L. pictus and L. spectabilis. Maximum parsimony, maximum likelihood, and Bayesian analyses suggest that there are six species within the L. pictus complex using the Weins-Penkrot approach and Templeton's cohesion test for delimitating species whereas previously only two have been recognized.","abstract_has_math":false,"creators":["Vance, Victoria L."],"institution":"Brigham Young University - Provo","degree_name":"MS","degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T01:28:29Z","subjects":["species boundaries","Liomys pictus","Liomys spectabilis","Weins-Penkrot","cohesion test","delimiating species","Biology"],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarsarchive.byu.edu/etd/867","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Vance, Victoria L."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2006-05-08T07:00:00Z"]},{"key":"dc:publisher","label":"Institution","values":["Brigham Young University - Provo"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["species boundaries","Liomys pictus","Liomys spectabilis","Weins-Penkrot","cohesion test","delimiating species","Biology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarsarchive.byu.edu/etd/867","https://scholarsarchive.byu.edu/context/etd/article/1866/viewcontent/ETD_CISOPTR_990.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Life Sciences; Biology","Biology and Agriculture;Integrative Biology"]},{"key":"dc:description.abstract","label":"Abstract","values":["Previous studies based on morphological, allozymic and mitochondrial sequence data have indicated that Liomys pictus is paraplyletic relative to L. spectabilis. The purpose of this study was to determine the species boundaries that exist within this complex. I estimated phylogenetic relationships within this complex using sequence data from 1,140 bp of the mitochondrial DNA cytochrome b gene and two nuclear introns from engrailed protein (190 bp) and myosin heavy chain (254 bp) genes for approximately 712 individuals representing 82 localities across the range of L. pictus and L. spectabilis. Maximum parsimony, maximum likelihood, and Bayesian analyses suggest that there are six species within the L. pictus complex using the Weins-Penkrot approach and Templeton's cohesion test for delimitating species whereas previously only two have been recognized."]},{"key":"dc:format","label":"Dc Format","values":["application:pdf"]},{"key":"dc:source","label":"Dc Source","values":["Brigham Young University - Provo"]},{"key":"dc:title","label":"Title","values":["Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae)"]}]}],"canonical_facts":{"dc:creator":["Vance, Victoria L."],"dc:date":["2006-05-08T07:00:00Z"],"dc:description":["Life Sciences; Biology","Biology and Agriculture;Integrative Biology"],"dc:description.abstract":["Previous studies based on morphological, allozymic and mitochondrial sequence data have indicated that Liomys pictus is paraplyletic relative to L. spectabilis. The purpose of this study was to determine the species boundaries that exist within this complex. I estimated phylogenetic relationships within this complex using sequence data from 1,140 bp of the mitochondrial DNA cytochrome b gene and two nuclear introns from engrailed protein (190 bp) and myosin heavy chain (254 bp) genes for approximately 712 individuals representing 82 localities across the range of L. pictus and L. spectabilis. Maximum parsimony, maximum likelihood, and Bayesian analyses suggest that there are six species within the L. pictus complex using the Weins-Penkrot approach and Templeton's cohesion test for delimitating species whereas previously only two have been recognized."],"dc:format":["application:pdf"],"dc:identifier":["https://scholarsarchive.byu.edu/etd/867","https://scholarsarchive.byu.edu/context/etd/article/1866/viewcontent/ETD_CISOPTR_990.pdf"],"dc:language":["English"],"dc:publisher":["Brigham Young University - Provo"],"dc:source":["Brigham Young University - Provo"],"dc:subject":["species boundaries","Liomys pictus","Liomys spectabilis","Weins-Penkrot","cohesion test","delimiating species","Biology"],"dc:title":["Delimitating Species Boundaries within the Liomys Pictus- Spectabilis Complex (Rodentia: Heteromyidae)"],"dc:type":["Thesis"],"thesis:degree_name":["MS"]},"updated_at":"2026-07-24T01:28:29Z"}