{"id":{"repo_id":"u-pacific","oai_identifier":"oai:scholarlycommons.pacific.edu:uop_etds-1415"},"canonical_url":"https://search.dev.ndltd.org/etd/u-pacific/oai:scholarlycommons.pacific.edu:uop_etds-1415","repository":{"repo_id":"u-pacific","name":"University of the Pacific","base_url":"https://scholarlycommons.pacific.edu/do/oai/"},"display":{"title":"The ecological life history and feeding biology of Batillaria zonalis (Bruguière)","abstract":"In the present study, aspects of the ecological life history of Batillaria zonalis (Brugiere) has been investigated for a period of two years. Trends in population dynamics and aspects of its biology in two salt marsh localities are described. Results of studies of the feeding biology of the sympatric population of Batillaria and Cerithidea californica (an “ecological equivalent” of Batillaria (Macdonald, 1969) and their interaction with diatoms are reported with reference to food-resource partitioning. The results are discussed within the context of problems of testing hypotheses about diversity and stability in salt marsh communities. Although these basic theoretical questions cannot be answered in this study, the Batillaria-Cerithidea-diatom component of salt marsh committees is believed to have characteristics facilitating testing of specific hypotheses about community dynamics.","abstract_html":"In the present study, aspects of the ecological life history of Batillaria zonalis (Brugiere) has been investigated for a period of two years. Trends in population dynamics and aspects of its biology in two salt marsh localities are described. Results of studies of the feeding biology of the sympatric population of Batillaria and Cerithidea californica (an “ecological equivalent” of Batillaria (Macdonald, 1969) and their interaction with diatoms are reported with reference to food-resource partitioning. The results are discussed within the context of problems of testing hypotheses about diversity and stability in salt marsh communities. Although these basic theoretical questions cannot be answered in this study, the Batillaria-Cerithidea-diatom component of salt marsh committees is believed to have characteristics facilitating testing of specific hypotheses about community dynamics.","abstract_has_math":false,"creators":["Whitlatch, Robert Bruce"],"institution":null,"degree_name":"Master of Science (M.S.)","degree_level":"Thesis","degree_discipline":"Marine Sciences","degree_department":null,"school":null,"contributors":["Steven Obrebski"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1972,"date_issued":"1972-01-01T08:00:00Z","date_published":"1972-01-01T08:00:00Z","updated_at":"2026-07-24T05:36:21Z","subjects":["Potamididae","Snails","Life Sciences","Marine Biology"],"languages":[],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/NKC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"https://scholarlycommons.pacific.edu/uop_etds/416","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Steven Obrebski"]},{"key":"dc:creator","label":"Author","values":["Whitlatch, Robert Bruce"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["1972-01-01T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Marine Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (M.S.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Potamididae","Snails","Life Sciences","Marine Biology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/NKC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarlycommons.pacific.edu/uop_etds/416"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["In the present study, aspects of the ecological life history of Batillaria zonalis (Brugiere) has been investigated for a period of two years. Trends in population dynamics and aspects of its biology in two salt marsh localities are described. Results of studies of the feeding biology of the sympatric population of Batillaria and Cerithidea californica (an “ecological equivalent” of Batillaria (Macdonald, 1969) and their interaction with diatoms are reported with reference to food-resource partitioning. The results are discussed within the context of problems of testing hypotheses about diversity and stability in salt marsh communities. Although these basic theoretical questions cannot be answered in this study, the Batillaria-Cerithidea-diatom component of salt marsh committees is believed to have characteristics facilitating testing of specific hypotheses about community dynamics."]},{"key":"dc:source","label":"Dc Source","values":["228"]},{"key":"dc:title","label":"Title","values":["The ecological life history and feeding biology of Batillaria zonalis (Bruguière)"]}]}],"canonical_facts":{"dc:contributor":["Steven Obrebski"],"dc:creator":["Whitlatch, Robert Bruce"],"dc:date.available":["1972-01-01T08:00:00Z"],"dc:description.abstract":["In the present study, aspects of the ecological life history of Batillaria zonalis (Brugiere) has been investigated for a period of two years. Trends in population dynamics and aspects of its biology in two salt marsh localities are described. Results of studies of the feeding biology of the sympatric population of Batillaria and Cerithidea californica (an “ecological equivalent” of Batillaria (Macdonald, 1969) and their interaction with diatoms are reported with reference to food-resource partitioning. The results are discussed within the context of problems of testing hypotheses about diversity and stability in salt marsh communities. Although these basic theoretical questions cannot be answered in this study, the Batillaria-Cerithidea-diatom component of salt marsh committees is believed to have characteristics facilitating testing of specific hypotheses about community dynamics."],"dc:identifier":["https://scholarlycommons.pacific.edu/uop_etds/416"],"dc:rights":["http://rightsstatements.org/vocab/NKC/1.0/"],"dc:source":["228"],"dc:subject":["Potamididae","Snails","Life Sciences","Marine Biology"],"dc:title":["The ecological life history and feeding biology of Batillaria zonalis (Bruguière)"],"thesis:degree_discipline":["Marine Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (M.S.)"]},"updated_at":"2026-07-24T05:36:21Z"}