{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/97783"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/97783","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Identifying floral hosts of cerambycid beetles using palynology","abstract":"Pollen is an important food source for many insects including the adults of beetles whose larvae are important forest pests. I quantified the distribution of pollen-feeding in adults of several species of long-horned beetles (Coleoptera: Cerambycidae). Palynivory by cerambycid beetles is common in the subfamily Lepturinae and occurs sporadically in Cerambycinae. The current knowledge of feeding in this group is inferred from floral host records, which are biased against tall trees because they are inaccessible to naturalists. I present a simplified palynological method for extracting and quantifying pollen from the frass of 21 species of beetles collected on flowers, with pheromone-baited panel traps, and at lights. I identified pollen grains to genus or species when possible and estimated abundances using calculations based on standardized markers added to samples. I found a higher abundance of pollen grains in the frass of palynivorous beetles collected on flowers than in the frass of beetles collected otherwise. I used the Shannon-Wiener Index to describe the diversity of pollen in the frass of beetles collected from flowers. There was high alpha diversity of pollen grains in the frass of Callimoxys sanguinicollis (Olivier) on Cornus drummondii C.A.Mey. (Cornaceae) and Molorchus bimaculatus Say on Cornus florida L. Next, I described the pollen taxa in the frass of palynivorous beetles collecting in traps and at lights by calculating the mean abundance and proportions of pollen taxa. I found Juglans nigra L. (Juglandaceae), Quercus L. (Fagaceae), and Vitis L. (Vitaceae) in frass from Anelaphus pumilus (Newman). Acer L. (Sapindaceae), Viburnum L. (Caprifoliaceae), and Quercus was found in frass from Cyrtophorus verrucosus (Olivier). I recorded Acer and Quercus pollen in the frass of Euderces pini (Olivier). Megacyllene caryae (Gahan) frass contained Quercus and Crataegus Tourn. (Rosaceae) pollen. Finally, the abundance, richness, and composition of pollen grains in the frass of Megacyllene caryae varied with collection date (e.g., April 17 vs. April 25, 2016) and location (e.g., forest vs. urban sites). These results provide insight into the natural history and feeding behavior of long-horned beetles, potentially influencing conservation or pest management strategies for forest insects. Moreover, I provide a method to secure evidence of palynivory in insects without having to carry out dissections or field observations.","abstract_html":"Pollen is an important food source for many insects including the adults of beetles whose larvae are important forest pests. I quantified the distribution of pollen-feeding in adults of several species of long-horned beetles (Coleoptera: Cerambycidae). Palynivory by cerambycid beetles is common in the subfamily Lepturinae and occurs sporadically in Cerambycinae. The current knowledge of feeding in this group is inferred from floral host records, which are biased against tall trees because they are inaccessible to naturalists. I present a simplified palynological method for extracting and quantifying pollen from the frass of 21 species of beetles collected on flowers, with pheromone-baited panel traps, and at lights. I identified pollen grains to genus or species when possible and estimated abundances using calculations based on standardized markers added to samples. I found a higher abundance of pollen grains in the frass of palynivorous beetles collected on flowers than in the frass of beetles collected otherwise. I used the Shannon-Wiener Index to describe the diversity of pollen in the frass of beetles collected from flowers. There was high alpha diversity of pollen grains in the frass of Callimoxys sanguinicollis (Olivier) on Cornus drummondii C.A.Mey. (Cornaceae) and Molorchus bimaculatus Say on Cornus florida L. Next, I described the pollen taxa in the frass of palynivorous beetles collecting in traps and at lights by calculating the mean abundance and proportions of pollen taxa. I found Juglans nigra L. (Juglandaceae), Quercus L. (Fagaceae), and Vitis L. (Vitaceae) in frass from Anelaphus pumilus (Newman). Acer L. (Sapindaceae), Viburnum L. (Caprifoliaceae), and Quercus was found in frass from Cyrtophorus verrucosus (Olivier). I recorded Acer and Quercus pollen in the frass of Euderces pini (Olivier). Megacyllene caryae (Gahan) frass contained Quercus and Crataegus Tourn. (Rosaceae) pollen. Finally, the abundance, richness, and composition of pollen grains in the frass of Megacyllene caryae varied with collection date (e.g., April 17 vs. April 25, 2016) and location (e.g., forest vs. urban sites). These results provide insight into the natural history and feeding behavior of long-horned beetles, potentially influencing conservation or pest management strategies for forest insects. Moreover, I provide a method to secure evidence of palynivory in insects without having to carry out dissections or field observations.","abstract_has_math":false,"creators":["Hazel, Xander M"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Entomology","degree_department":null,"school":null,"contributors":["Hanks, Lawrence M.","Berenbaum, May R.","Punyasena, Surangi W.","Suarez, Andrew"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-08-10T20:33:25Z","date_published":"2017-08-10T20:33:25Z","updated_at":"2026-07-22T22:24:34Z","subjects":["Cerambycinae","Lepturinae","Cerambycidae","Quercus","Crataegus","Pollen","Palynology","Frass","Beetles","Herbivory","Palynivory","Flowers","Inflorescence","Anthesis","Phenology","Natural history"],"languages":["en"],"rights":["Copyright 2017 Xander Hazel"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/97783","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Hanks, Lawrence M.","Berenbaum, May R.","Punyasena, Surangi W.","Suarez, Andrew"]},{"key":"dc:creator","label":"Author","values":["Hazel, Xander M"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2017-08-10T20:33:25Z","2019-08-11T09:15:17Z","2017-04-27","2017-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Entomology"]},{"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":["Cerambycinae","Lepturinae","Cerambycidae","Quercus","Crataegus","Pollen","Palynology","Frass","Beetles","Herbivory","Palynivory","Flowers","Inflorescence","Anthesis","Phenology","Natural history"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2017 Xander Hazel"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/97783"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Pollen is an important food source for many insects including the adults of beetles whose larvae are important forest pests. I quantified the distribution of pollen-feeding in adults of several species of long-horned beetles (Coleoptera: Cerambycidae). Palynivory by cerambycid beetles is common in the subfamily Lepturinae and occurs sporadically in Cerambycinae. The current knowledge of feeding in this group is inferred from floral host records, which are biased against tall trees because they are inaccessible to naturalists. I present a simplified palynological method for extracting and quantifying pollen from the frass of 21 species of beetles collected on flowers, with pheromone-baited panel traps, and at lights. I identified pollen grains to genus or species when possible and estimated abundances using calculations based on standardized markers added to samples. I found a higher abundance of pollen grains in the frass of palynivorous beetles collected on flowers than in the frass of beetles collected otherwise. I used the Shannon-Wiener Index to describe the diversity of pollen in the frass of beetles collected from flowers. There was high alpha diversity of pollen grains in the frass of Callimoxys sanguinicollis (Olivier) on Cornus drummondii C.A.Mey. (Cornaceae) and Molorchus bimaculatus Say on Cornus florida L. Next, I described the pollen taxa in the frass of palynivorous beetles collecting in traps and at lights by calculating the mean abundance and proportions of pollen taxa. I found Juglans nigra L. (Juglandaceae), Quercus L. (Fagaceae), and Vitis L. (Vitaceae) in frass from Anelaphus pumilus (Newman). Acer L. (Sapindaceae), Viburnum L. (Caprifoliaceae), and Quercus was found in frass from Cyrtophorus verrucosus (Olivier). I recorded Acer and Quercus pollen in the frass of Euderces pini (Olivier). Megacyllene caryae (Gahan) frass contained Quercus and Crataegus Tourn. (Rosaceae) pollen. Finally, the abundance, richness, and composition of pollen grains in the frass of Megacyllene caryae varied with collection date (e.g., April 17 vs. April 25, 2016) and location (e.g., forest vs. urban sites). These results provide insight into the natural history and feeding behavior of long-horned beetles, potentially influencing conservation or pest management strategies for forest insects. Moreover, I provide a method to secure evidence of palynivory in insects without having to carry out dissections or field observations.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-05-01","The student, Xander Hazel, accepted the attached license on 2017-04-26 at 08:48.","The student, Xander Hazel, submitted this Thesis for approval on 2017-04-26 at 08:56.","This Thesis was approved for publication on 2017-04-27 at 10:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11057 on 2017-08-10 at 15:07:03","Made available in DSpace on 2017-08-10T20:33:25Z (GMT). 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I quantified the distribution of pollen-feeding in adults of several species of long-horned beetles (Coleoptera: Cerambycidae). Palynivory by cerambycid beetles is common in the subfamily Lepturinae and occurs sporadically in Cerambycinae. The current knowledge of feeding in this group is inferred from floral host records, which are biased against tall trees because they are inaccessible to naturalists. I present a simplified palynological method for extracting and quantifying pollen from the frass of 21 species of beetles collected on flowers, with pheromone-baited panel traps, and at lights. I identified pollen grains to genus or species when possible and estimated abundances using calculations based on standardized markers added to samples. I found a higher abundance of pollen grains in the frass of palynivorous beetles collected on flowers than in the frass of beetles collected otherwise. I used the Shannon-Wiener Index to describe the diversity of pollen in the frass of beetles collected from flowers. There was high alpha diversity of pollen grains in the frass of Callimoxys sanguinicollis (Olivier) on Cornus drummondii C.A.Mey. (Cornaceae) and Molorchus bimaculatus Say on Cornus florida L. Next, I described the pollen taxa in the frass of palynivorous beetles collecting in traps and at lights by calculating the mean abundance and proportions of pollen taxa. I found Juglans nigra L. (Juglandaceae), Quercus L. (Fagaceae), and Vitis L. (Vitaceae) in frass from Anelaphus pumilus (Newman). Acer L. (Sapindaceae), Viburnum L. (Caprifoliaceae), and Quercus was found in frass from Cyrtophorus verrucosus (Olivier). I recorded Acer and Quercus pollen in the frass of Euderces pini (Olivier). Megacyllene caryae (Gahan) frass contained Quercus and Crataegus Tourn. (Rosaceae) pollen. Finally, the abundance, richness, and composition of pollen grains in the frass of Megacyllene caryae varied with collection date (e.g., April 17 vs. April 25, 2016) and location (e.g., forest vs. urban sites). These results provide insight into the natural history and feeding behavior of long-horned beetles, potentially influencing conservation or pest management strategies for forest insects. Moreover, I provide a method to secure evidence of palynivory in insects without having to carry out dissections or field observations.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-05-01","The student, Xander Hazel, accepted the attached license on 2017-04-26 at 08:48.","The student, Xander Hazel, submitted this Thesis for approval on 2017-04-26 at 08:56.","This Thesis was approved for publication on 2017-04-27 at 10:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #11057 on 2017-08-10 at 15:07:03","Made available in DSpace on 2017-08-10T20:33:25Z (GMT). No. of bitstreams: 2 HAZEL-THESIS-2017.pdf: 1685475 bytes, checksum: 86d7cd37c1f3cba304c9c6d7380ffb7b (MD5) LICENSE.txt: 4209 bytes, checksum: c4996779662784a504f484af6bc38d21 (MD5) Previous issue date: 2017-04-27","Embargo set by: Colleen Fallaw for item 102836 Lift date: 2019-08-10T21:27:21Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only Restriction Lifted for Item 102836 on 2019-08-11T09:15:17Z."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/97783"],"dc:language":["en"],"dc:rights":["Copyright 2017 Xander Hazel"],"dc:subject":["Cerambycinae","Lepturinae","Cerambycidae","Quercus","Crataegus","Pollen","Palynology","Frass","Beetles","Herbivory","Palynivory","Flowers","Inflorescence","Anthesis","Phenology","Natural history"],"dc:title":["Identifying floral hosts of cerambycid beetles using palynology"],"dc:type":["text"],"thesis:degree_discipline":["Entomology"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:34Z"}