2026-09-22T05:10:28Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/71439 2023-07-11 col_2142_5131 col_2142_16508 com_2142_5130 com_2142_16507 com_2142_14793 com_2142_8903

Trautwein, Steven Norman 2014-12-16T06:45:49Z 2014-12-16T06:45:49Z 10000-01-01 1985 1985 Observations were made of S. u. hyacinthinus, two at a time, in a 4' x 8' enclosure behind a two-way mirror. Behavior, body temperature and location of the animals within the enclosure were recorded at 10-second intervals. By far the most significant predictor of body temperature was found to be the location of the lizard with respect to the heat source. Other significant, but moderate, predictors of body temperature were identity and sex of the lizard, time since dawn, and behavior. Factors which were found to account for variations in behavior included presence of a cloacal thermocouple, digestive state, sex, and individual differences among lizards. Based on agonistic behavior, S. u. hyacinthinus were subdivided into dominant male, sub-dominant male and female groups. The temperature distribution of females was negatively skewed while that of males was bimodal, with dominants found primarily in the warm peak. Dominant males also controlled their body temperature more closely than sub-dominants or females, as judged by variance of body temperature. Other factors which were associated with control of body temperature were digestive state and alertness. Lizards of all three categories spent the bulk of their time in the postures BODY-UP, ANTERIOR-BODY-UP and VENTRAL-ADPRESSION, which were judged to have thermoregulatory significance. Lizards of the three categories used these postures in different amounts to achieve varying degrees of thermoregulatory control. The impact of social structure on habitat utilization was discussed. Made available in DSpace on 2014-12-16T06:45:49Z (GMT). No. of bitstreams: 1 8521894.pdf: 10349521 bytes, checksum: 16333640b1301288fbfe3dc4c7cbea62 (MD5) Previous issue date: 1985 Embargo set by: Seth Robbins for item 71605 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 388 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1985. http://hdl.handle.net/2142/71439 (UMI)AAI8521894 Biology, Animal Physiology Relationships Among Behavior, Body Temperature, Physiological State and Habitat Utilization in the Northern Fence Lizard Sceloporus Undulatus Hyacinthinus text Physiology and Biophysics Physiology University of Illinois at Urbana-Champaign Dissertation Ph.D.