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Author : Kirk Thornton Mosley
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (262 download)
Download or read book Behavior Patterns of the Collared Lizard (Crotaphytus Collaris Collaris) written by Kirk Thornton Mosley and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Casey Lee Brewster
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (123 download)
Download or read book Eastern Collared Lizard (crotaphytus Collaris) Population Declines in Ozark Landscapes written by Casey Lee Brewster and published by . This book was released on 2019 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eastern Collared Lizard (Crotaphytus collaris) has experienced extensive population declines over the past half century in the Ozark Mountains. Previous research suggests that glade habitat degradation through woody vegetation encroachment is an important factor resulting in population declines. In this dissertation I used information on time-energy budgets to investigate the link between habitat degradation and shifts in life history traits likely resulting in population declines of Eastern Collared Lizards (Crotaphytus collaris) in the Ozarks. In chapter one, I addressed the influence of dense woody vegetation encroachment on age-specific growth, body size, body condition and reproduction of C. collaris in northern Arkansas. Results from chapter one suggested that populations in encroached glades (defined by dense woody vegetation encroachment) experienced reduced body growth rates, delayed age of maturity, reduced clutch sizes and a nearly 50% decline in annual population fecundity rates. In chapter two, I investigated the role of behavior (postural adjustment) on the thermal ecology estimates of surface-active lizards using thermal data of C. collaris in one of my study populations. I used the data in chapter two to determine the most suitable methodologies to investigate the thermal ecology of C. collaris in northern Arkansas. In chapter three, I investigated the thermal sensitivity of digestion in C. collaris. Results in chapter three suggested that C. collaris digestion performance is affected by temperature, primarily through effects on passage times and voluntary feeding rates. In chapter four, I used results from the previous three chapters to erect several mechanistic hypotheses aimed at identifying the link between glade encroachment and reduced reproductive rates in C. collaris. Data in chapter four suggest C. collaris in encroached glades experience reduced environmental heat loads, shorter activity-times and less time-at-temperature suitable for digestive processing. The reduction in time-at-temperature for digestive processing resulted in lower energy available for growth and reproduction (4̃1%), which led to a near 50% decline in energy devoted to reproduction (# of eggs). Results from this dissertation provide a compelling explanation to the mechanisms causing a shift in life history traits that appear to play an important role in population declines of C. collaris in the Ozarks.
Download or read book Crotaphytus Collaris: Collared Lizard written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers information on the Crotaphytus collaris, the collared lizard, provided by the Texas Memorial Museum of the University of Texas at Austin. Includes pictures of the lizard and discusses the lizard's size, color, sexual dimorphisms, habitat, behavior, breeding, and range in Texas.
Author : Andrew Michael Schwartz
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (54 download)
Download or read book Variation in the Social Behavior of Adult Male Collared Lizards, Crotaphytus Collaris written by Andrew Michael Schwartz and published by . This book was released on 2002 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ann Marie Jonsson
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (472 download)
Download or read book Changes in the Localized Habitat of the Collard Lizard (Crotaphytus Collaris) from Southeast Utah to Southern Arizona written by Ann Marie Jonsson and published by . This book was released on 2001 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marvin Dewane Mondy
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (971 download)
Download or read book A Distributional Study of the Collared Lizard, Crotaphytus Collaris Collaris written by Marvin Dewane Mondy and published by . This book was released on 1970 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hague Leland Lindsay
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (385 download)
Download or read book Variation in local populations of the collared lizard, Crotaphytus collaris written by Hague Leland Lindsay and published by . This book was released on 1951 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Earle Burt
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (34 download)
Download or read book The Synonomy, Variation, and Distribution of the Collared Lizard, Crotaphytus Collaris (Say) written by Charles Earle Burt and published by . This book was released on 1928 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book An Ecological Study of the Collared Lizard, Crotaphytus Collaris written by and published by . This book was released on 1956 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ira Nathan Yedlin
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (346 download)
Download or read book Variation of Aggressiveness of the Collared Lizard (Crotaphytus C. Collaris) written by Ira Nathan Yedlin and published by . This book was released on 1971 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles E. Burt
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (458 download)
Download or read book The Synonymy, Variation, and Distribution of the Collared Lizard, "crotaphytus Collaris"... by Charles E. Burt written by Charles E. Burt and published by . This book was released on 1928 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John William Parks
Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.:/5 (464 download)
Download or read book Territoriality and Spatial Structure of the Eastern Collared Lizard, Crotaphytus Collaris Collaris written by John William Parks and published by . This book was released on 2000 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stanley Elwood Trauth
Publisher :
ISBN 13 :
Total Pages : 218 pages
Book Rating : 4.:/5 (869 download)
Download or read book Demography and Reproduction of the Eastern Collared Lizard, Crotaphytus Collaris Collaris (Say), from Northern Arkansas written by Stanley Elwood Trauth and published by . This book was released on 1974 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Alan Sugerman
Publisher :
ISBN 13 :
Total Pages : 238 pages
Book Rating : 4.:/5 (467 download)
Download or read book Behaviors Elicited by Electrical Stimulation of the Brain in Western Collared Lizards, Crotaphytus Collaris written by Richard Alan Sugerman and published by . This book was released on 1975 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Henry Sheldon Fitch
Publisher :
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.:/5 (76 download)
Download or read book An Ecological Study of the Collared Lizard (Crotaphytus Collaris). written by Henry Sheldon Fitch and published by . This book was released on 1956 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Emilie Blevins
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (642 download)
Download or read book Influence of Landscape Context on Patterns of Occupancy, Abundance, and Gene Flow Among Collared Lizards in the Flint Hills of Kansas written by Emilie Blevins and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Organisms exist within complex landscapes, and landscape features may influence multiple aspects of a species' distribution within the landscape, including patch occupancy, abundance within patches, and population genetic diversity at a local or regional scale. We took two approaches to identify the relative importance of landscape context for populations of the Eastern Collared Lizard (Crotaphytus collaris collaris) in the northern Flint Hills of Kansas. First, we conducted surveys at limestone outcrops in experimental watersheds managed under different burning and grazing practices. Habitat occupancy and lizard abundance were estimated by constructing models that incorporated aspects of the environment at multiple scales. Both abundance and occupancy were higher on rock ledges that had more crevices, greater complexity in vegetation, covered a larger area, and were more prominent than available habitat. Abundance and occupancy were also higher in watersheds that were burned frequently (1-2 year intervals), but grazing only had a significant effect in less frequently burned (four-year burn interval) watersheds. Our second approach was to measure genetic diversity and population genetic differentiation and relate these measures to differences in landscape context. We sampled collared lizard DNA at four locations (sample sites
Author : Ashley Ann Grimsley
Publisher :
ISBN 13 : 9781267548979
Total Pages : 282 pages
Book Rating : 4.5/5 (489 download)
Download or read book A Reexamination of the Eastern Collared Lizard (Crotaphytus Collaris Collaris) in Arkansas written by Ashley Ann Grimsley and published by . This book was released on 2012 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: A literature review of the C. c. collaris is presented in Chapter 1. Lizard characteristics, glade habitat characteristics, and information on habitat change, loss, and fragmentation of glades are described. The main goal of my thesis, presented in Chapter 2, was to determine differences across sites in environmental variables, habitat variables, tree community structure, and lizard body condition. I sought to establish differences in these factors in 17 historical C. c. collaris sites (7 with lizard presence and 8 with lizard absence) and determine if the differences were correlated with the presence or absence of C. c. collaris populations. Significant differences in some factors were found between present sites and absent sites. Environmental variables were not related to the presence or absence of C. c. collaris, indicating a habitat phenomenon rather than environmental. Lizard presence was correlated with habitat structure, as indicated in the ground and canopy cover surveys. Present sites had a positive correlation with rock and soil cover and a negative correlation with CWD, vegetation, and canopy cover; whereas absent sites had a positive correlation with CWD, vegetation, and canopy cover and a negative correlation with rock and soil cover. Present and absent sites had a significant difference in tree community structure. Absent sites had significantly larger trees and a higher frequency of trees compared to present sites. Lizard body condition was associated with the quality and openness of the glade. These data will prove useful in conservation efforts aimed at C. c. collaris recovery in Arkansas and other glade locations in the Ozarks.
