{"id":{"repo_id":"mo-state","oai_identifier":"oai:bearworks.missouristate.edu:theses-1215"},"canonical_url":"https://search.dev.ndltd.org/etd/mo-state/oai:bearworks.missouristate.edu:theses-1215","repository":{"repo_id":"mo-state","name":"Missouri State University","base_url":"https://bearworks.missouristate.edu/do/oai/"},"display":{"title":"Habitat Analysis of the Ozark Hellbender, Cryptobranchus Alleganiensis Bishopi, in Missouri","abstract":"The habitat of the Ozark hellbender, Cryptobranchus alleganiensis bishopi, was investigated in the Northfork of the White River, Ozark County, Missouri. Microhabitat variables of water depth, current velocity, substrate, and embeddedness were measured for 259 hellbenders. A principal component analysis demonstrated all microhabitat variables were important to hellbenders. Sites with hellbender populations had available cover rocks at significantly greater depths, larger substrates and less embeddedness. Sites with hellbender populations also had significantly more cover rocks and available microhabitat. There was a high correlation between hellbender abundance and available microhabitat, suggesting habitat limits population size. Hellbenders selected cover rocks within sites at significantly greater water depths, faster current velocity, and lower embeddedness.","abstract_html":"The habitat of the Ozark hellbender, Cryptobranchus alleganiensis bishopi, was investigated in the Northfork of the White River, Ozark County, Missouri. Microhabitat variables of water depth, current velocity, substrate, and embeddedness were measured for 259 hellbenders. A principal component analysis demonstrated all microhabitat variables were important to hellbenders. Sites with hellbender populations had available cover rocks at significantly greater depths, larger substrates and less embeddedness. Sites with hellbender populations also had significantly more cover rocks and available microhabitat. There was a high correlation between hellbender abundance and available microhabitat, suggesting habitat limits population size. Hellbenders selected cover rocks within sites at significantly greater water depths, faster current velocity, and lower embeddedness.","abstract_has_math":false,"creators":["Fobes, Timothy Matthew"],"institution":null,"degree_name":"Master of Science in Biology","degree_level":"Masters","degree_discipline":"Biology","degree_department":null,"school":null,"contributors":["Robert Wilkinson"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1995,"date_issued":"1995-07-01T07:00:00Z","date_published":"1995-07-01T07:00:00Z","updated_at":"2026-07-24T03:15:12Z","subjects":["Biology"],"languages":[],"rights":["© Timothy Matthew Fobes"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://bearworks.missouristate.edu/theses/214","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Robert Wilkinson"]},{"key":"dc:creator","label":"Author","values":["Fobes, Timothy Matthew"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Biology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Biology"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["© Timothy Matthew Fobes"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://bearworks.missouristate.edu/theses/214"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The habitat of the Ozark hellbender, Cryptobranchus alleganiensis bishopi, was investigated in the Northfork of the White River, Ozark County, Missouri. Microhabitat variables of water depth, current velocity, substrate, and embeddedness were measured for 259 hellbenders. A principal component analysis demonstrated all microhabitat variables were important to hellbenders. Sites with hellbender populations had available cover rocks at significantly greater depths, larger substrates and less embeddedness. Sites with hellbender populations also had significantly more cover rocks and available microhabitat. There was a high correlation between hellbender abundance and available microhabitat, suggesting habitat limits population size. Hellbenders selected cover rocks within sites at significantly greater water depths, faster current velocity, and lower embeddedness."]},{"key":"dc:title","label":"Title","values":["Habitat Analysis of the Ozark Hellbender, Cryptobranchus Alleganiensis Bishopi, in Missouri"]}]}],"canonical_facts":{"dc:contributor":["Robert Wilkinson"],"dc:creator":["Fobes, Timothy Matthew"],"dc:description.abstract":["The habitat of the Ozark hellbender, Cryptobranchus alleganiensis bishopi, was investigated in the Northfork of the White River, Ozark County, Missouri. Microhabitat variables of water depth, current velocity, substrate, and embeddedness were measured for 259 hellbenders. A principal component analysis demonstrated all microhabitat variables were important to hellbenders. Sites with hellbender populations had available cover rocks at significantly greater depths, larger substrates and less embeddedness. Sites with hellbender populations also had significantly more cover rocks and available microhabitat. There was a high correlation between hellbender abundance and available microhabitat, suggesting habitat limits population size. Hellbenders selected cover rocks within sites at significantly greater water depths, faster current velocity, and lower embeddedness."],"dc:identifier":["https://bearworks.missouristate.edu/theses/214"],"dc:rights":["© Timothy Matthew Fobes"],"dc:subject":["Biology"],"dc:title":["Habitat Analysis of the Ozark Hellbender, Cryptobranchus Alleganiensis Bishopi, in Missouri"],"thesis:degree_discipline":["Biology"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science in Biology"]},"updated_at":"2026-07-24T03:15:12Z"}