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Author : J. Daren Riedle
Publisher :
ISBN 13 :
Total Pages : 242 pages
Book Rating : 4.:/5 (495 download)
Download or read book The Ecology of the Alligator Snapping Turtle, Macrochelys Temminckii, in Oklahoma written by J. Daren Riedle and published by . This book was released on 2001 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sarah Spangler
Publisher :
ISBN 13 :
Total Pages : 132 pages
Book Rating : 4.:/5 (15 download)
Download or read book Ecology of Hatchling Alligator Snapping Turtles (Macrochelys Temminckii) written by Sarah Spangler and published by . This book was released on 2017 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Little is known about the first year of life for many of the world’s freshwater turtles. This is due in part to their cryptic nature and the difficulty of locating hatchlings in the wild. The lack of information about this demographically important age group has led researchers to draw conclusions from indirect inferences about survival rates and ecological roles of hatchlings that may or may not be accurate. To begin filling in some of these gaps, I focused on the first year in an alligator snapping turtle’s life. I studied: (1) circadian and circannual patterns of activity, (2) growth rates and how they are related to activity rates, (3) habitat preferences, (4) fall movement patterns, and (5) predation patterns. My study site was within the species’ natural range in southeastern Oklahoma. Unlike adults, hatchlings followed a predominantly diurnal activity pattern for much of the year, with peak activity occurring during the mid-hours of the day. The diurnal habit of hatchlings may be a strategy to temporally partition themselves from nocturnal predators. There were no significant relationships between growth rates and activity rates during any period, potentially due to small sample size. Hatchlings were located in areas of increased cover and shallower water depths, when compared to random locations. Their movement patterns were characterized by an initial movement away from the site of release to a location with suitable habitat characteristics, and they tended to stay at these locations for extended periods. I documented depredation by fish, but not by terrestrial predators such as raccoons.
Author : Jessica Leigh Miller
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.:/5 (831 download)
Download or read book Nesting Ecology in Reintroduced Alligator Snapping Turtles (Macrochelys Temminckii) written by Jessica Leigh Miller and published by . This book was released on 2012 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alligator snapping turtle (Macrochelys temminckii) is a large freshwater species that has experienced population declines throughout much of its range. In an effort to reestablish an extirpated population in southern Oklahoma, adult M. temminckii were released at Tishomingo National Wildlife Refuge in 2007. I investigated several aspects of M. temminckii reproductive biology within this reintroduced population, including nest-site selection, reproductive and nest predation rates, and patterns of temperature-dependent sex determination (TSD) in natural nests. Water depth two meters from the shoreline and percentage ground cover were important factors in nest-site selection. The nest predation rate was 76% when efforts were made to protect nests and the average clutch size in intact nests was 22.4 eggs. The overall sex ratio in 2010 recruits was strongly female-biased (91.8% female) and a strongly skewed population sex ratio may become a serious threat to this reintroduced population if this trend continues. I also developed a technique to reliably estimate clutch size from predated M. temminckii shell fragments which will improve estimates of mean clutch size (and therefore annual fecundity) for the population. The persistence of several adult M. temminckii and evidence of successful reproduction and recruitment are positive signs, but post-release monitoring will need to continue for several more years in order for this reintroduction to be considered a success.
Author : Mitchell B. East
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (825 download)
Download or read book Diet and Feeding Behavior of Juvenile Alligator Snapping Turtles (Macrochelys Temminckii) in Eastern Oklahoma written by Mitchell B. East and published by . This book was released on 2012 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Oklahoma, the alligator snapping turtle (Macrochelys temminckii) has experienced declines and recent efforts to conserve the species have focused on reintroducing captive-reared juveniles. The effect of the reintroduction on other aquatic turtles is not known and feeding behavior of juvenile M. temminckii is not understood. The following studies were conducted to 1) compare the diet of captive-reared juvenile M. temminckii to that of wild juveniles and investigate the diet overlap of juvenile M. temminckii with adult female Graptemys ouachitensis in the Caney River, where M. temminckii have been recently reintroduced, in comparison to Sequoyah National Wildlife Refuge (SNWR) where the two species have co-occurred indefinitely, ; 2) determine if juveniles reared with exposure to a single food item exhibit innate feeding preferences; and 3) define the current status of aquatic turtles at SNWR in comparison to data collected a decade ago. There were noticeable differences between the diet of captive-reared and wild juvenile M. temminckii. There was greater overlap of juvenile M. temminckii and adult female G. ouachitensis diet at the Caney River. Juvenile M. temminckii showed some innate prey preference and foraging capability. There were large declines in trapping rates of all species, composition of the aquatic turtle community changed dramatically, and changes in the M. temminckii population indicate that unknown factors have impacted turtles at SNWR.
Author : Cody Lee Townsend
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (145 download)
Download or read book Spatial Ecology of Juvenile Captive-reared Alligator Snapping Turtles (Macrochelys Temminckii) in Northeastern Louisiana written by Cody Lee Townsend and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mitchell James Ray
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (692 download)
Download or read book Spatial Ecology of Adult Alligator Snapping Turtles (Macrochelys Temminckii) written by Mitchell James Ray and published by . This book was released on 2010 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Travis L. Anthony
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (885 download)
Download or read book Aquatic Turtle Community Dynamics in Relation to Reintroduction of Alligator Snapping Turtles, Macrochelys Temminckii written by Travis L. Anthony and published by . This book was released on 2013 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alligator snapping turtle (Macrochelys temminckii) is a long-lived species that merits reintroduction because the species has declined significantly throughout its range. The purposes of this study were to: 1) report the findings of a reintroduction project that was initiated in 2008 and 2) to compare habitat associations of all aquatic turtles species in the Caney, Verdigris, and Spring rivers in northern Oklahoma. Alligator snapping turtles were released in the Caney River in 2008, 2009, 2010, and all released individuals exhibited substantial annual growth rates upon recapture 1-3 years later. Additionally, no decline in body condition was observed. Capture probability was estimated to be 30%, and annual survival was estimated to be 64%. This survival estimate may be lowered by dispersal of animals away from the sampling area. Among the three rivers and three tributaries sampled, Pond Creek, a tributary of the Caney River, had the highest diversity. Big Creek, a tributary of the Verdigris River, supported a turtle community that was comparatively dissimilar to other sites sampled, including in comparison to the main channel of the Verdigris River. Possible displacement of Ouachita map turtles (Graptemys ouachitensis) was observed where alligator snapping turtles were introduced.
Download or read book אם יתנו לך טואי משי written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Amity Ann Bass
Publisher :
ISBN 13 :
Total Pages : 106 pages
Book Rating : 4.:/5 (193 download)
Download or read book Habitat Use and Movements of Alligator Snapping Turtle (Macrochelys Temminckii) Hatchlings written by Amity Ann Bass and published by . This book was released on 2007 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to gather data concerning home range, movements, and habitat use of hatchling Alligator Snapping Turtles ... in order to better manage for this species. Nineteen hatchlings were tracked at Black Bayou Lake National Wildlife Refuge during 2006. Ten animals were successfully tracked during the spring and nine during the fall. Hatchlings that were incubated in the laboratory or naturally on the railroad causeway were heavier and had longer carapace lengths than those naturally incubated along the forest-old field edge of the peninsula (p
Author : Brandon Tappmeyer
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (111 download)
Download or read book Stress and Body Composition of Juvenile Alligator Snapping Turtles (Macrochelys Temminckii) written by Brandon Tappmeyer and published by . This book was released on 2019 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alligator snapping turtle (Macrochelys temminckii), is a species of conservation concern that is the subject of multiple head-start and reintroduction efforts across its range. In captive propagation programs, producing offspring that are in optimal physiological condition maximizes the likelihood of success after release. The purpose of my study was to compare stress and body composition between one free-ranging reintroduced population and two captive populations. The two captive populations were both housed in southern Oklahoma, but one group was reared indoors whereas the other inhabited outdoor ponds at a national fish hatchery. I used circulating glucocorticoid (corticosterone) concentrations as an indicator of stress level and dual-energy X-ray absorptiometry (DXA) to estimate body composition. Corticosterone concentrations did not differ between captive and free-ranging populations, possibly suggesting that corticosterone is a poor predictor of stress in this species or under chronically stressful conditions. DXA accurately and precisely estimated fat mass (FM), lean tissue mass (LTM), and bone mineral mass (BMM). The captive-outdoor and free-ranging populations exhibited greater BMM than the captive-indoor population. However, both captive populations exhibited higher FM and lower LTM than turtles in the free-ranging population. A body condition index calculated by regressing log-transformed mass on length did not correlate with FM or BMM, but did correlate significantly with LTM.
Author : Michael Allyn Ewert
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (31 download)
Download or read book Nesting Ecology of the Alligator Snapping Turtle (Macroclemys Temminckii) Along the Lower Apalachicola River, Florida written by Michael Allyn Ewert and published by . This book was released on 1994 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Florida. Fish & Wildlife Conservation Commission
Publisher :
ISBN 13 :
Total Pages : 37 pages
Book Rating : 4.:/5 (875 download)
Download or read book A Species Action Plan for the Alligator Snapping Turtle, Macrochelys Temminckii written by Florida. Fish & Wildlife Conservation Commission and published by . This book was released on 2013 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. Ross Allen
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (869 download)
Download or read book The Alligator Snapping Turtle, Macrochelys Temminckii, in Florida written by E. Ross Allen and published by . This book was released on 1950 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christopher A. F. Howey
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (23 download)
Download or read book Demographics and Habitat Selection of the Alligator Snapping Turtle (Macrochelys Temminckii) written by Christopher A. F. Howey and published by . This book was released on 2007 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Charles Howard Pritchard
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Alligator Snapping Turtle written by Peter Charles Howard Pritchard and published by . This book was released on 1989 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Oklahoma Academy of Science
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.3/5 (91 download)
Download or read book Proceedings of the Oklahoma Academy of Science written by Oklahoma Academy of Science and published by . This book was released on 2008 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. 1-49 are Proceedings of the 1st-57th annual meetings.
Author : Joseph C. Hackler
Publisher :
ISBN 13 :
Total Pages : 45 pages
Book Rating : 4.:/5 (743 download)
Download or read book Genetic Variation Within and Among Natural and Captive Populations of Alligator Snapping Turtles in (macrochelys Temmincki) Oklahoma written by Joseph C. Hackler and published by . This book was released on 2006 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
