Download or read book Influence of the Burrow Environment on Body Temperature Oxygen Consumption and Water Loss of the Banner tailed Kangaroo Rat Dipodomys Spectabilis written by Fenton R. Kay and published by . This book was released on 1974 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Review written by and published by . This book was released on 1976 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Homeostatic Responses Influence Thermoregulation and Activity But Not Body Condition in the Banner tailed Kangaroo Rat written by Javier Omar Morales and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human activities and unpredictable changes to environmental habitats impose a suite of stress and challenges to animal homeostatic function. Stress responses are often controlled by the release of glucocorticoids to mobilize energy, primarily corticosterone in small mammals, to help regulate homeostatic function such as heterothermy and changes to body condition, the latter of which serves as a proxy for energy reserves. Adaptive heterothermy is influenced by daily and seasonal patterns, heat produced from daily activity, and has been shown to increase in small mammals during times of environmental stress to conserve energy budgets. Body condition also changes in response to environmental perturbations, mobilization of energy by corticosterone, seasonal changes, and activity. My study aimed to disentangle the effects of environment and activity on homeostatic responses by pharmacologically manipulating corticosterone in kangaroo rats. Kangaroo rats are ecosystem engineers, heterothermic, and their activity periods are functions of their thermoregulatory patterns as well as environmental conditions thus making the species a great candidate for this form of study. I conducted two in-situ field experiments to assess for the effects of stress responses on thermoregulation, activity, and body condition. In my first experiment, I used body temperature (Tb) as a proxy for activity time and examined how pharmacologically increased corticosterone influenced kangaroo rat heterothermy responses to the moon phases and ambient temperatures. I also examined their fat, lean mass, and water content at the end of the study. Moon phase was a significant predictor of activity period as animals typically waited longer during the waxing moon phase to become active and cooled down below activity earlier in the night during the waning moon phase. As nights shortened, activity decreased despite environmental conditions becoming warmer. Corticosterone also significantly decreased total activity time and thus steadily increased heterothermy across the length of my experiment. These results indicate activity, not environment, are stronger drivers of heterothermy patterns. Total fat content (energy content) at the end of the study was not affected by corticosterone. The lack of change in fat content was presumably because kangaroo rat body condition was measured once at the end of the study and likely not a reflection of changed body condition over time. In my second experiment, I examined body condition across a longer period by measuring lean mass, fat content, and total body water across a 2-month period in the summer by pharmacologically increasing corticosterone to test the relationship between stress and body condition and to dissociate the two from environmental factors. Body condition indices generally increased across the summer, but corticosterone implantation did not significantly affect body any of the indices. The loss of heterothermic control and decrease in activity time across the summer suggests that animals are likely conserving energy budgets leading to preservation of condition. Further, banner-tailed kangaroo rats generally breed in the spring where body condition falls due to stress induced by increased competition and then increases across the summer as late summer monsoons promote the growth of primary resources utilized by animals thereby preserving body condition. This study suggests that body condition is driven more by life-history traits, activity time, and environment rather than stress responses.
Download or read book Life History of the Kangaroo Rat written by Charles Taylor Vorhies and published by . This book was released on 1922 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bulletin, a joint contribution of the Bureau of Biological Survey and the Arizona Agricultural Experiment Station, contains a summary of the results of investigations of the relation of a subspecies of kangaroo rat to the carrying capacity of the open ranges, being one phase of a general study of the life histories of rodent groups as they affect agriculture, forestry, and grazing.
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Summer Computer Simulation Conference written by and published by . This book was released on 1975 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The effects of banner tailed kangaroo rat Dipodomys spectabilis mound occupancy on reptile populations written by Shawn B. Whiteman and published by . This book was released on 2007 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Respiratory System written by American Physiological Society (1887- ) and published by . This book was released on 1986 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cockroaches written by William J. Bell and published by JHU Press. This book was released on 2007-07-27 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher description
Download or read book Field Metabolic Rate and Water Balance of the Kangaroo Rat Dipodomys Merriami written by Mark John Gruchacz and published by . This book was released on 1991 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Physiology written by and published by . This book was released on 1986 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Evaporated Water Loss in the Kangaroo Rat Dipodomys Venustus written by Ronald L. Church and published by . This book was released on 1961 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Comparison of Thermoregulation and Water Metabolism in the Kangaroo Rats Dipodomys Agilis and Dipodomys Merriami written by Roger Edwin Carpenter and published by . This book was released on 1966 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Literature of Mammalogy written by and published by . This book was released on 1974 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplement for Feb. 1974 includes Proposed revisions of society bylaws and rules.
Download or read book Berichte ber die wissenschaftliche Biologie written by and published by . This book was released on 1979 with total page 1026 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1975 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
