{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/122066"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/122066","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Floral resource preference, occupancy, and detection of bumblebee species in northeastern Illinois","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms","abstract_has_math":false,"creators":["Schrage, Alma"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Natural Res & Env Sciences","degree_department":null,"school":null,"contributors":["Dreslik, Michael J","Robinson, Jason L","Matthews, Jeffrey"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-12","date_published":"2023-12","updated_at":"2026-07-22T22:25:00Z","subjects":["Bumblebee","Bumble Bee","Occupancy","Detection","Resource Selection","Resource Preference","Illinois","Pollinator Monitoring","Pollinator Conservation","Pollinator"],"languages":["en","eng"],"rights":["Copyright 2023 Alma C. Schrage"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/122066","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Dreslik, Michael J","Robinson, Jason L","Matthews, Jeffrey"]},{"key":"dc:creator","label":"Author","values":["Schrage, Alma"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023-12","2023-12-06"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Res & Env Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Bumblebee","Bumble Bee","Occupancy","Detection","Resource Selection","Resource Preference","Illinois","Pollinator Monitoring","Pollinator Conservation","Pollinator"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2023 Alma C. Schrage"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/122066"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms","The student, Alma Schrage, accepted the attached license on 2023-12-05 at 14:20.","The student, Alma Schrage, submitted this Thesis for approval on 2023-12-05 at 14:33.","This Thesis was approved for publication on 2023-12-06 at 14:35.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20143 on 2024-03-01 at 13:15:27","Many pollinators, including bumblebees, are declining, and effective monitoring programs need to be developed to understand distribution and habitat preferences to better guide conservation management decisions. Without concrete information on detection probabilities, recommended survey efforts are often based on life history information for various bumblebee species, but such recommendations have not been vetted for efficacy. In Illinois, there has been a recent increase in bumblebee community monitoring due to the Federal listing of the rusty-patched bumblebee (Bombus affinis Cresson 1863). I conducted bumblebee assemblage surveys in grassland areas of nature preserves throughout northeastern Illinois and collected data on floral resource use and availability. I used compositional analysis of bumblebee floral resource use and floral availability data for floral taxa recorded on my survey transects at different preserves to identify floral preferences for bumblebee species. I determined two common bumblebee species, B. impatiens, and B. griseocollis, did not show significantly divergent preferences for floral taxa; they were significantly affected by site identity, suggesting they adapted their selection based on available resources. At larger spatial scales, six bumblebee species – B. impatiens, B. griseocollis, B. bimaculatus, B. auricomus, B. fervidus, and B. rufocinctus – showed significantly divergent foraging patch preferences, but again preference was driven primarily by site identity. As expected, due to flowering phenology, survey date was also a significant factor in foraging preference. To identify optimal survey effort, I modeled occupancy with imperfect detection for three common bumblebee species: B. impatiens, B. griseocollis, and B. auricomus. I found grassland area, survey date, observer walking speed, temperature, and observer experience were important for predicting occupancy and detection probabilities. My results suggest an optimal survey effort and a more nuanced approach are necessary for managing the floral resources of generalist pollinators with a relatively long colony lifespan and exhibiting foraging elasticity in response to habitat context."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Floral resource preference, occupancy, and detection of bumblebee species in northeastern Illinois"]}]}],"canonical_facts":{"dc:contributor":["Dreslik, Michael J","Robinson, Jason L","Matthews, Jeffrey"],"dc:creator":["Schrage, Alma"],"dc:date":["2023-12","2023-12-06"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms","The student, Alma Schrage, accepted the attached license on 2023-12-05 at 14:20.","The student, Alma Schrage, submitted this Thesis for approval on 2023-12-05 at 14:33.","This Thesis was approved for publication on 2023-12-06 at 14:35.","DSpace SAF Submission Ingestion Package generated from Vireo submission #20143 on 2024-03-01 at 13:15:27","Many pollinators, including bumblebees, are declining, and effective monitoring programs need to be developed to understand distribution and habitat preferences to better guide conservation management decisions. Without concrete information on detection probabilities, recommended survey efforts are often based on life history information for various bumblebee species, but such recommendations have not been vetted for efficacy. In Illinois, there has been a recent increase in bumblebee community monitoring due to the Federal listing of the rusty-patched bumblebee (Bombus affinis Cresson 1863). I conducted bumblebee assemblage surveys in grassland areas of nature preserves throughout northeastern Illinois and collected data on floral resource use and availability. I used compositional analysis of bumblebee floral resource use and floral availability data for floral taxa recorded on my survey transects at different preserves to identify floral preferences for bumblebee species. I determined two common bumblebee species, B. impatiens, and B. griseocollis, did not show significantly divergent preferences for floral taxa; they were significantly affected by site identity, suggesting they adapted their selection based on available resources. At larger spatial scales, six bumblebee species – B. impatiens, B. griseocollis, B. bimaculatus, B. auricomus, B. fervidus, and B. rufocinctus – showed significantly divergent foraging patch preferences, but again preference was driven primarily by site identity. As expected, due to flowering phenology, survey date was also a significant factor in foraging preference. To identify optimal survey effort, I modeled occupancy with imperfect detection for three common bumblebee species: B. impatiens, B. griseocollis, and B. auricomus. I found grassland area, survey date, observer walking speed, temperature, and observer experience were important for predicting occupancy and detection probabilities. My results suggest an optimal survey effort and a more nuanced approach are necessary for managing the floral resources of generalist pollinators with a relatively long colony lifespan and exhibiting foraging elasticity in response to habitat context."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/122066"],"dc:language":["en","eng"],"dc:rights":["Copyright 2023 Alma C. Schrage"],"dc:subject":["Bumblebee","Bumble Bee","Occupancy","Detection","Resource Selection","Resource Preference","Illinois","Pollinator Monitoring","Pollinator Conservation","Pollinator"],"dc:title":["Floral resource preference, occupancy, and detection of bumblebee species in northeastern Illinois"],"dc:type":["text"],"thesis:degree_discipline":["Natural Res & Env Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:00Z"}