Author: Glenn Eric BissellPublisher:
ISBN:
Category : Lizards
Languages : en
Pages : 21
Book Description
The Effects of Reduced Environmental Temperature and Aggressive Display on the Body Temperature of the Lizard S̲c̲e̲l̲o̲p̲o̲r̲u̲s̲ O̲c̲c̲i̲d̲e̲n̲t̲ Al̲i̲s̲ O̲c̲c̲i̲d̲e̲n̲t̲a̲l̲i̲s̲ Baird and Girard
Author: Glenn Eric BissellPublisher:
ISBN:
Category : Lizards
Languages : en
Pages : 21
Book Description
The Effects of Aggressive Display on Body Temperature in the Fence Lizard Sceloporus Occidentalis Occidentalis Baird and Girard
Author: Gustav A. EngbretsonPublisher:
ISBN:
Category : Lizards
Languages : en
Pages : 23
Book Description
Inland Fisheries Administrative Report
Author: Annotated Bibliography of Masters Theses and Doctoral Dissertations on Native California Amphibians and Reptiles, 1935-1990
Author: Michelle L. WorkmanPublisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 68
Book Description
Biology of the Reptilia: Physiology A
Author: Carl GansPublisher: London : Academic Press
ISBN:
Category : Nature
Languages : en
Pages : 578
Book Description
Functional Consequences of Acute Temperature Stress in the Western Fence Lizard, Sceloporus Occidentalis
Author: David Michael McMillanPublisher:
ISBN:
Category : Heat shock proteins
Languages : en
Pages : 105
Book Description
Biological & Agricultural Index
Author: Temperature Adjustments of Sceloporus Occidentalis Occidentalis to Increasing Environmental Temperatures
Author: Carrie Gillanders WhitePublisher:
ISBN:
Category : Animal heat
Languages : en
Pages : 30
Book Description
How Do Lizards Use Behavior and Physiology to Inhabit Different Climate Zones?
Author: Matthew R. McTernanPublisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 172
Book Description
Rapid climatic change is expected to pose extreme ecological and physiological challenges on many ectothermic vertebrates. Some ectothermic species are notable, however, for inhabiting wide geographic ranges and variety of climate zones. Studying how exemplars among ectotherms can behaviorally and physiologically accommodate differing temperature ranges should provide useful mechanistic perspectives on climate change challenges for less accomplished ectotherms. The western fence lizard (Sceloporus occidentalis) is one such exemplar, ranging from southern California to northern Washington. In Washington State, a single subspecies of this lizard occupies strongly contrasting climate zones. Thus, the focus of this thesis was to determine how this subspecies uses behavior and physiology to successfully inhabit these very different habitats within these climate zones. I chose to study Sceloporus occidentalis populations from the Sondino Ponds Unit in the Columbia River Gorge ("CRG"; mean max air = 38.9°C), Goat Wall in the North Cascades ("GW"; mean max air = 33°C), and along the coastal shores of the Salish Sea just north of Marysville ("CS"; mean max air = 27.7°C). In summer 2015 and 2016, to compare thermoregulatory capacity in the field among lizards at each of these contrasting climate zones, I measured field-active body temperatures (field-active Tb) of lizards immediately upon capture. To determine whether lizards may have needed to accept field-active Tb that were suboptimal -- presumably due to suboptimal thermal conditions -- I compared the distribution of a) field-active Tb among the three locales, and b) field-active Tb with preferred v body temperatures of alert-and-active lizards in the lab (lab Tb) where they were free to select precise body temperatures in a thermal gradient. To test for presence of temperature-dependent physiological differences among the three populations of lizards, I used a flow-through respirometry system in lab to measure whole-animal resting metabolic rates (RMR) -- lizards with digesting and assimilating food in their guts -- at three ecologically and physiologically relevant body temperatures (20°C, 28°C, and 36°C), as well as standard metabolic rates (SMR) -- lizards that were fasted and empty of foodstuff -- at 28°C Tb. Lizards at the warmest locale, CRG, had significantly higher field-active Tb than those at the cool coastal locale, CS (ANOVA, p=0.05; post hoc, p=0.045), but field-active Tb of lizards at the high-elevation, northern population, GW, were not significantly different from those of lizards at the other two locales. The distribution of field-active Tb of lizards from CRG skewed warmer than lab Tb (t-tests comparing upper quartile, p
The Effect of Temperature on the Digestive Efficiency of Three Species of Lizards, Cnemidophorus Tigris, Gerrhonotus Multicarinatus, and Sceloporus Occidentalis
Author: Robert Henry HarwoodPublisher:
ISBN:
Category : Anguidae
Languages : en
Pages : 232
Book Description