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Andrew Suarez Smith, Christopher R. 2015-09-28T22:11:35Z 2015-09-28T22:11:35Z 10000-01-01 2008 2008 In conclusion, the many independent origins of caste in the social insects likely resulted from variation in the proximate factors that can yield phenotypic differences (e.g., larval diet, genetic variation, social regulation) and variation in the selective pressures favoring caste differentiation (e.g., foraging, defense, storage). Caste differences were likely selected for different adaptive reasons in different taxa, and these were in turn accommodated by taxon specific mechanisms of varying developmental pathways in order to produce phenotypic variation. Made available in DSpace on 2015-09-28T22:11:35Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3314899.pdf: 1812781 bytes, checksum: 40f2b711d7f44e453b1ea214dec93fd3 (MD5) Previous issue date: 2008 Embargo set by: Seth Robbins for item 89188 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 103 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2008. http://hdl.handle.net/2142/87907 (MiAaPQ)AAI3314899 eng Biology, Entomology Ecology and Evolution of Caste and Polymorphism in Pogonomyrmex Seed Harvester Ants text University of Illinois at Urbana-Champaign Dissertation Ph.D.