{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/31969"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/31969","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Life history trade-offs in a parental care-providing fish: the role of reproductive value, predation threat, and physiological condition on brood abandonment decisions by paternal largemouth bass","abstract":"Parental care evolved as a means to maximize reproductive success at a cost to physiological and nutritional condition of the care-providing individual, and at a cost to future reproductive potential. Parental investment decisions are rooted in tradeoffs between these factors, and when the cost of care-provision is outweighed by potential future reproductive potential, a parent may forfeit current investment in an effort to maximize future reproductive success. Few studies have approached parental care decisions using offspring abandonment as a direct and ultimate fitness affect, and fewer yet have adopted a holistic approach to test how physiological and environmental conditions compare in influencing the decision by a parent to abandon their brood. I performed two separate, yet complementary, studies to test for the effects of several factors on brood abandonment decisions in largemouth bass (Micropterus salmoides); a model parental care-providing species. First, I tested whether mating success and simulated brood depredation affect the decision by paternal largemouth bass to abandon a brood. Second, I used a multivariate approach to jointly test for the influence of nutritional condition, hormonal stress, androgen concentration, and oxidative stress of brood-guarding paternal largemouth bass, and the threat of brood depredation (i.e., brood predator density), on brood abandonment decisions. Together, my results suggested a threshold for brood loss at which paternal largemouth bass were more likely to abandon what remains of a depredated brood, and that a high threat of depredation and reduced androgen concentration also influenced the decision by paternal bass to abandon care. My findings have implications for science-based management of a highly sought-after sportfish, as well as offer a novel approach for testing the inter-related effects of various abiotic and biotic factors on parental care decisions across taxa.","abstract_html":"Parental care evolved as a means to maximize reproductive success at a cost to physiological and nutritional condition of the care-providing individual, and at a cost to future reproductive potential. Parental investment decisions are rooted in tradeoffs between these factors, and when the cost of care-provision is outweighed by potential future reproductive potential, a parent may forfeit current investment in an effort to maximize future reproductive success. Few studies have approached parental care decisions using offspring abandonment as a direct and ultimate fitness affect, and fewer yet have adopted a holistic approach to test how physiological and environmental conditions compare in influencing the decision by a parent to abandon their brood. I performed two separate, yet complementary, studies to test for the effects of several factors on brood abandonment decisions in largemouth bass (Micropterus salmoides); a model parental care-providing species. First, I tested whether mating success and simulated brood depredation affect the decision by paternal largemouth bass to abandon a brood. Second, I used a multivariate approach to jointly test for the influence of nutritional condition, hormonal stress, androgen concentration, and oxidative stress of brood-guarding paternal largemouth bass, and the threat of brood depredation (i.e., brood predator density), on brood abandonment decisions. Together, my results suggested a threshold for brood loss at which paternal largemouth bass were more likely to abandon what remains of a depredated brood, and that a high threat of depredation and reduced androgen concentration also influenced the decision by paternal bass to abandon care. My findings have implications for science-based management of a highly sought-after sportfish, as well as offer a novel approach for testing the inter-related effects of various abiotic and biotic factors on parental care decisions across taxa.","abstract_has_math":false,"creators":["Zuckerman, Zachary"],"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":["Suski, Cory D."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-06-27T21:22:18Z","date_published":"2012-06-27T21:22:18Z","updated_at":"2026-07-22T22:25:30Z","subjects":["Parental care","stress","oxidative stress","nutritional condition","offspring abandonment","recruitment","reproductive success","brood loss","brood depredation","Largemouth bass","Micropterus salmoides","fitness"],"languages":["en"],"rights":["Copyright 2012 Zachary Zuckerman"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/31969","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Suski, Cory D."]},{"key":"dc:creator","label":"Author","values":["Zuckerman, Zachary"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-06-27T21:22:18Z","2014-06-28T10:00:22Z","2012-05"]},{"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":["Parental care","stress","oxidative stress","nutritional condition","offspring abandonment","recruitment","reproductive success","brood loss","brood depredation","Largemouth bass","Micropterus salmoides","fitness"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2012 Zachary Zuckerman"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/31969"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Parental care evolved as a means to maximize reproductive success at a cost to physiological and nutritional condition of the care-providing individual, and at a cost to future reproductive potential. Parental investment decisions are rooted in tradeoffs between these factors, and when the cost of care-provision is outweighed by potential future reproductive potential, a parent may forfeit current investment in an effort to maximize future reproductive success. Few studies have approached parental care decisions using offspring abandonment as a direct and ultimate fitness affect, and fewer yet have adopted a holistic approach to test how physiological and environmental conditions compare in influencing the decision by a parent to abandon their brood. I performed two separate, yet complementary, studies to test for the effects of several factors on brood abandonment decisions in largemouth bass (Micropterus salmoides); a model parental care-providing species. First, I tested whether mating success and simulated brood depredation affect the decision by paternal largemouth bass to abandon a brood. Second, I used a multivariate approach to jointly test for the influence of nutritional condition, hormonal stress, androgen concentration, and oxidative stress of brood-guarding paternal largemouth bass, and the threat of brood depredation (i.e., brood predator density), on brood abandonment decisions. Together, my results suggested a threshold for brood loss at which paternal largemouth bass were more likely to abandon what remains of a depredated brood, and that a high threat of depredation and reduced androgen concentration also influenced the decision by paternal bass to abandon care. My findings have implications for science-based management of a highly sought-after sportfish, as well as offer a novel approach for testing the inter-related effects of various abiotic and biotic factors on parental care decisions across taxa.","Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-04-27T12:38:31Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 3 Zuckerman_Zachary.pdf: 295345 bytes, checksum: 8c4fedd5e7626f7e8793c63e9b0114f2 (MD5) Zuckerman_Zachary.docx: 647678 bytes, checksum: 65e0ec74d52a13c8903daa38a1b041f8 (MD5) Zuckerman_Zachary.pdf: 295345 bytes, checksum: 0174c761d7c087092c2b73e040d40027 (MD5)","Made available in DSpace on 2012-06-27T21:22:18Z (GMT). No. of bitstreams: 2 Zuckerman_Zachary.pdf: 296436 bytes, checksum: e3ed743fcc618253d8c2453605ce982b (MD5) license.txt: 4067 bytes, checksum: c0b6410dc1f45225a79e1c110108caf7 (MD5)","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2012-06-27T21:24:42Z Item is restricted until 2014-06-27T21:24:27Z","Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:22Z Item was in collections: Dissertations and Theses - Natural Resources and Environmental Sciences (ID: 671) Graduate Theses and Dissertations at Illinois (ID: 204) No. of bitstreams: 2 Zuckerman_Zachary.pdf: 296436 bytes, checksum: e3ed743fcc618253d8c2453605ce982b (MD5) license.txt: 4067 bytes, checksum: c0b6410dc1f45225a79e1c110108caf7 (MD5)","Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:22Z"]},{"key":"dc:title","label":"Title","values":["Life history trade-offs in a parental care-providing fish: the role of reproductive value, predation threat, and physiological condition on brood abandonment decisions by paternal largemouth bass"]}]}],"canonical_facts":{"dc:contributor":["Suski, Cory D."],"dc:creator":["Zuckerman, Zachary"],"dc:date":["2012-06-27T21:22:18Z","2014-06-28T10:00:22Z","2012-05"],"dc:description":["Parental care evolved as a means to maximize reproductive success at a cost to physiological and nutritional condition of the care-providing individual, and at a cost to future reproductive potential. Parental investment decisions are rooted in tradeoffs between these factors, and when the cost of care-provision is outweighed by potential future reproductive potential, a parent may forfeit current investment in an effort to maximize future reproductive success. Few studies have approached parental care decisions using offspring abandonment as a direct and ultimate fitness affect, and fewer yet have adopted a holistic approach to test how physiological and environmental conditions compare in influencing the decision by a parent to abandon their brood. I performed two separate, yet complementary, studies to test for the effects of several factors on brood abandonment decisions in largemouth bass (Micropterus salmoides); a model parental care-providing species. First, I tested whether mating success and simulated brood depredation affect the decision by paternal largemouth bass to abandon a brood. Second, I used a multivariate approach to jointly test for the influence of nutritional condition, hormonal stress, androgen concentration, and oxidative stress of brood-guarding paternal largemouth bass, and the threat of brood depredation (i.e., brood predator density), on brood abandonment decisions. Together, my results suggested a threshold for brood loss at which paternal largemouth bass were more likely to abandon what remains of a depredated brood, and that a high threat of depredation and reduced androgen concentration also influenced the decision by paternal bass to abandon care. My findings have implications for science-based management of a highly sought-after sportfish, as well as offer a novel approach for testing the inter-related effects of various abiotic and biotic factors on parental care decisions across taxa.","Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2012-04-27T12:38:31Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 3 Zuckerman_Zachary.pdf: 295345 bytes, checksum: 8c4fedd5e7626f7e8793c63e9b0114f2 (MD5) Zuckerman_Zachary.docx: 647678 bytes, checksum: 65e0ec74d52a13c8903daa38a1b041f8 (MD5) Zuckerman_Zachary.pdf: 295345 bytes, checksum: 0174c761d7c087092c2b73e040d40027 (MD5)","Made available in DSpace on 2012-06-27T21:22:18Z (GMT). No. of bitstreams: 2 Zuckerman_Zachary.pdf: 296436 bytes, checksum: e3ed743fcc618253d8c2453605ce982b (MD5) license.txt: 4067 bytes, checksum: c0b6410dc1f45225a79e1c110108caf7 (MD5)","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2012-06-27T21:24:42Z Item is restricted until 2014-06-27T21:24:27Z","Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:22Z Item was in collections: Dissertations and Theses - Natural Resources and Environmental Sciences (ID: 671) Graduate Theses and Dissertations at Illinois (ID: 204) No. of bitstreams: 2 Zuckerman_Zachary.pdf: 296436 bytes, checksum: e3ed743fcc618253d8c2453605ce982b (MD5) license.txt: 4067 bytes, checksum: c0b6410dc1f45225a79e1c110108caf7 (MD5)","Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2014-06-28T10:00:22Z"],"dc:identifier":["http://hdl.handle.net/2142/31969"],"dc:language":["en"],"dc:rights":["Copyright 2012 Zachary Zuckerman"],"dc:subject":["Parental care","stress","oxidative stress","nutritional condition","offspring abandonment","recruitment","reproductive success","brood loss","brood depredation","Largemouth bass","Micropterus salmoides","fitness"],"dc:title":["Life history trade-offs in a parental care-providing fish: the role of reproductive value, predation threat, and physiological condition on brood abandonment decisions by paternal largemouth bass"],"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":"2026-07-22T22:25:30Z"}