{"id":{"repo_id":"mo-state","oai_identifier":"oai:bearworks.missouristate.edu:theses-2231"},"canonical_url":"https://search.dev.ndltd.org/etd/mo-state/oai:bearworks.missouristate.edu:theses-2231","repository":{"repo_id":"mo-state","name":"Missouri State University","base_url":"https://bearworks.missouristate.edu/do/oai/"},"display":{"title":"Zooplankton Species Composition and Diversity in Floodplain Ponds: Effects of Flooding and Local Site Characteristics","abstract":"Local environmental conditions and dispersal of colonists from the regional species pool together shape local communities. Physicochemical characteristics and biotic interactions influence local conditions and physical connection through flooding provides dispersal corridors for inundated pond communities. I explored crustacean zooplankton community composition and diversity in 29 floodplain ponds surrounding Truman Reservoir, Missouri. Topographic features and daily lake level data from 1993-2002 were used within a Geographic Information System (GIS) to determine flood frequency (0-59 events over 10 years) and flood duration (0-2603 of 3863 days) of the ponds. Spearman's rank correlations revealed negative relationships between both flood frequency and duration and species richness. In contrast, composition of pond communities was not visibly affected by these hydrologic factors. Local physicochemical variables were measured on one date and combined with flood frequency and duration in a community ordination (Canonical Correspondence Analysis). This analysis revealed strong relationships between species occurrences and presence of fish, pond depth, and distance from the lake. Species occurrences were mildly constrained by total dissolved solids (conductivity). Flood frequency and duration did not have a visible effect on community composition. These results indicate local environmental factors are more important in constraining community composition when dispersal is not limiting. However, when ponds are frequently disturbed by flooding, species richness is reduced.","abstract_html":"Local environmental conditions and dispersal of colonists from the regional species pool together shape local communities. Physicochemical characteristics and biotic interactions influence local conditions and physical connection through flooding provides dispersal corridors for inundated pond communities. I explored crustacean zooplankton community composition and diversity in 29 floodplain ponds surrounding Truman Reservoir, Missouri. Topographic features and daily lake level data from 1993-2002 were used within a Geographic Information System (GIS) to determine flood frequency (0-59 events over 10 years) and flood duration (0-2603 of 3863 days) of the ponds. Spearman's rank correlations revealed negative relationships between both flood frequency and duration and species richness. In contrast, composition of pond communities was not visibly affected by these hydrologic factors. Local physicochemical variables were measured on one date and combined with flood frequency and duration in a community ordination (Canonical Correspondence Analysis). This analysis revealed strong relationships between species occurrences and presence of fish, pond depth, and distance from the lake. Species occurrences were mildly constrained by total dissolved solids (conductivity). Flood frequency and duration did not have a visible effect on community composition. These results indicate local environmental factors are more important in constraining community composition when dispersal is not limiting. However, when ponds are frequently disturbed by flooding, species richness is reduced.","abstract_has_math":false,"creators":["Medley, Kim A."],"institution":null,"degree_name":"Master of Science in Biology","degree_level":"Masters","degree_discipline":"Biology","degree_department":null,"school":null,"contributors":["John Havel"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004-07-01T07:00:00Z","date_published":"2004-07-01T07:00:00Z","updated_at":"2026-07-24T03:16:17Z","subjects":["zooplankton","flooding","inundation","diversity","communities","ponds","Biology"],"languages":[],"rights":["© Kim A. Medley"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://bearworks.missouristate.edu/theses/1230","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["John Havel"]},{"key":"dc:creator","label":"Author","values":["Medley, Kim A."]}]},{"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":["zooplankton","flooding","inundation","diversity","communities","ponds","Biology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["© Kim A. Medley"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://bearworks.missouristate.edu/theses/1230"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Local environmental conditions and dispersal of colonists from the regional species pool together shape local communities. Physicochemical characteristics and biotic interactions influence local conditions and physical connection through flooding provides dispersal corridors for inundated pond communities. I explored crustacean zooplankton community composition and diversity in 29 floodplain ponds surrounding Truman Reservoir, Missouri. Topographic features and daily lake level data from 1993-2002 were used within a Geographic Information System (GIS) to determine flood frequency (0-59 events over 10 years) and flood duration (0-2603 of 3863 days) of the ponds. Spearman's rank correlations revealed negative relationships between both flood frequency and duration and species richness. In contrast, composition of pond communities was not visibly affected by these hydrologic factors. Local physicochemical variables were measured on one date and combined with flood frequency and duration in a community ordination (Canonical Correspondence Analysis). This analysis revealed strong relationships between species occurrences and presence of fish, pond depth, and distance from the lake. Species occurrences were mildly constrained by total dissolved solids (conductivity). Flood frequency and duration did not have a visible effect on community composition. These results indicate local environmental factors are more important in constraining community composition when dispersal is not limiting. However, when ponds are frequently disturbed by flooding, species richness is reduced."]},{"key":"dc:title","label":"Title","values":["Zooplankton Species Composition and Diversity in Floodplain Ponds: Effects of Flooding and Local Site Characteristics"]}]}],"canonical_facts":{"dc:contributor":["John Havel"],"dc:creator":["Medley, Kim A."],"dc:description.abstract":["Local environmental conditions and dispersal of colonists from the regional species pool together shape local communities. Physicochemical characteristics and biotic interactions influence local conditions and physical connection through flooding provides dispersal corridors for inundated pond communities. I explored crustacean zooplankton community composition and diversity in 29 floodplain ponds surrounding Truman Reservoir, Missouri. Topographic features and daily lake level data from 1993-2002 were used within a Geographic Information System (GIS) to determine flood frequency (0-59 events over 10 years) and flood duration (0-2603 of 3863 days) of the ponds. Spearman's rank correlations revealed negative relationships between both flood frequency and duration and species richness. In contrast, composition of pond communities was not visibly affected by these hydrologic factors. Local physicochemical variables were measured on one date and combined with flood frequency and duration in a community ordination (Canonical Correspondence Analysis). This analysis revealed strong relationships between species occurrences and presence of fish, pond depth, and distance from the lake. Species occurrences were mildly constrained by total dissolved solids (conductivity). Flood frequency and duration did not have a visible effect on community composition. These results indicate local environmental factors are more important in constraining community composition when dispersal is not limiting. However, when ponds are frequently disturbed by flooding, species richness is reduced."],"dc:identifier":["https://bearworks.missouristate.edu/theses/1230"],"dc:rights":["© Kim A. Medley"],"dc:subject":["zooplankton","flooding","inundation","diversity","communities","ponds","Biology"],"dc:title":["Zooplankton Species Composition and Diversity in Floodplain Ponds: Effects of Flooding and Local Site Characteristics"],"thesis:degree_discipline":["Biology"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science in Biology"]},"updated_at":"2026-07-24T03:16:17Z"}