Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Habitat Use And Movements Of Alligator Snapping Turtle Macrochelys Temminckii Hatchlings
Download Habitat Use And Movements Of Alligator Snapping Turtle Macrochelys Temminckii Hatchlings full books in PDF, epub, and Kindle. Read online Habitat Use And Movements Of Alligator Snapping Turtle Macrochelys Temminckii Hatchlings ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Habitat Use and Movements of Alligator Snapping Turtle (Macrochelys Temminckii) Hatchlings by : Amity Ann Bass
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
Book Synopsis Ecology of Hatchling Alligator Snapping Turtles (Macrochelys Temminckii) by : Sarah Spangler
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.
Book Synopsis Survival, Movements, and Habitat Selection of Introduced Juvenile Alligator Snapping Turtles (Macrochelys Temminckii) in the Wolf River Drainage, Fayette County, Tennessee by : Joshua T. Ream
Download or read book Survival, Movements, and Habitat Selection of Introduced Juvenile Alligator Snapping Turtles (Macrochelys Temminckii) in the Wolf River Drainage, Fayette County, Tennessee written by Joshua T. Ream and published by . This book was released on 2008 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: We used marked-recapture and radiotelemetry to monitor non-native juvenile Alligator Snapping Turtles, Macrochelys temminckii, following release at the Wolf River Wildlife Management Area, Fayette County, Tennessee. This species, endemic to the Southeastern United States, is North America's largest freshwater turtle and considered of conservation concern in Tennessee and throughout much of its historical range ... Our study aimed to augment the efforts of the (Tennessee Wildlife Resources Agency) by monitoring the post-release movements and habitat selection of introduced juveniles in two types of palustrine habitats (a cypress/tupelo dominated slough and the main river channel).
Book Synopsis Population Status, Distribution, and Home Range of the Alligator Snapping Turtle (Macrochelys Temminckii) in the Suwannee River, Florida by : Travis M. Thomas
Download or read book Population Status, Distribution, and Home Range of the Alligator Snapping Turtle (Macrochelys Temminckii) in the Suwannee River, Florida written by Travis M. Thomas and published by . This book was released on 2013 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The alligator snapping turtle (Macrochelys temminckii) has experienced population declines throughout much of its range because of extensive harvest. Little is known about the genetically and morphologically distinct population of Macrochelys in the Suwannee River. In Georgia, efforts failed to capture Macrochelys in the Suwannee River, creating concern about this species status. To determine the status of Macrochelys in the Suwannee River, a mark-recapture and telemetry study was conducted between 2011 and 2013. In total, 132 individual Macrochelys were captured (21.2% juveniles, 17.4% females, and 61.4% males). Sex ratio was male-skewed (3.5:1) and 41% of males weighed \U+2265\45kg. Relative abundance and density estimates revealed an uneven distribution of turtles throughout the river, with more productive river sections maintaining higher population densities and larger turtles. Mean linear home ranges were 1,896 m ± 252 m for males and 1,615 m ± 301 m for females. Telemetry data revealed habitat use patterns not previously reported for Macrochelys, with individuals making overland movements between the floodplain and river channel. Side-scan sonar maps paired with turtle locations indicated coarse woody debris, undercut banks and large rocks are important habitat during low water levels. Bush hook surveys and radiographs revealed a positive correlation between bush hook abundance and number of ingested hooks. Macrochelys in the Suwannee are more numerous than previously thought; however, several threats exist including fish hook ingestion, boat propeller damage, and the removal of woody debris.
Book Synopsis Demographics and Habitat Selection of the Alligator Snapping Turtle (Macrochelys Temminckii) by : Christopher A. F. Howey
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:
Book Synopsis The Alligator Snapping Turtle by : Peter Charles Howard Pritchard
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:
Book Synopsis Relative Abundance, Population Structure, and Habitat Utilization of the Alligator Snapping Turtle (Macrochelys Temminckii) and Eastern Snapping Turtle (Chelydra Serpentina) in Southeastern Missouri by : Timothy Charles Lescher
Download or read book Relative Abundance, Population Structure, and Habitat Utilization of the Alligator Snapping Turtle (Macrochelys Temminckii) and Eastern Snapping Turtle (Chelydra Serpentina) in Southeastern Missouri written by Timothy Charles Lescher and published by . This book was released on 2010 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alligator Snapping Turtles have not been surveyed extensively in Missouri since 1993-94. Six sites that were sampled in the early nineties were re-sampled in 2009 at the same locations where previous researchers trapped. Significantly fewer significantly fewer Alligator Snapping Turtles were captured per trapnight at all six sites. The population structure of the Alligator Snapping Turtles had a significantly different distribution in 2009 compared to 1993-94. The population structure had shifted toward smaller individuals, and fewer adult males and adult females were captured in 2009 compared to 1993-94. The 1993-94 structure was normally distributed while the 2009 structure exhibited a negative skew. Populations sampled in 2009 have an extremely female-biased sex ratio and fewer large adults, which may impact the population negatively in the future. Future sampling of Alligator Snapping Turtles at these six sites is recommended to continue monitoring their long-term trends in relative abundance and population structure. Alligator Snapping Turtles (Macrochelys temminckii) and Eastern Snapping Turtles (Chelydra serpentina) were captured during the summers of 2009 and 2010. Habitat characteristics were collected at each trap that captured these species. Subsequent analysis of data revealed that Alligator Snapping Turtle presence at trap sites was characterized by increased physical structure in the stream, water depth, relatively high levels of detritus, and warmer temperatures when compared to Eastern Snapping Turtles; the amount of aquatic vegetation and bottom surface (i.e., mud or non-mud substrate) were important in characterizing Eastern Snapping Turtle presence in traps. Eastern Snapping Turtles and Alligator Snapping Turtles did not use the same areas spatially, and were only trapped at the same location once in 557 trapnights. Future conservation plans for the Alligator Snapping Turtle and Eastern Snapping Turtle should consider the microhabitat characteristics of sites utilized by these turtles, along with the possibility of interspecific interactions within Chelydridae.
Book Synopsis Alligator Snapping Turtle (Macroclemys Temminckii) by : Paul Alan Shipman
Download or read book Alligator Snapping Turtle (Macroclemys Temminckii) written by Paul Alan Shipman and published by . This book was released on 1993 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nesting Ecology in Reintroduced Alligator Snapping Turtles (Macrochelys Temminckii) by : Jessica Leigh Miller
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.
Book Synopsis The Ecology of the Alligator Snapping Turtle, Macrochelys Temminckii, in Oklahoma by : J. Daren Riedle
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:
Book Synopsis Increasing Alligator Snapping Turtle Head-starting Success Through Housing Enrichment and Inoculation of Hatchlings with Digestive Microbiota by : Kristen Erin Sardina
Download or read book Increasing Alligator Snapping Turtle Head-starting Success Through Housing Enrichment and Inoculation of Hatchlings with Digestive Microbiota written by Kristen Erin Sardina and published by . This book was released on 2018 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to historic overharvest and habitat degradation, the alligator snapping turtle (Macrochelys temminckii) has experienced population declines throughout its range. Tishomingo National Fish Hatchery in southern Oklahoma began a captive head-start program for this species in 2000 and has since released over 1,400 turtles in the region. However, there has been a recurring trend of turtles growing faster after release than while in captivity. My research sought to investigate this pattern by determining: 1) the influence of housing enrichment and housing density on juvenile growth rates and stress in indoor enclosures, and 2) the effects of supplementing hatchlings with adult feces to enhance the gut microbiome. I found that the presence of floating mats in indoor tanks improved growth rates compared to other structural components. Group density did not affect average growth rates, but animals that were housed communally exhibited more variable growth than individuals housed without conspecifics present. When exposed to feces of adult conspecifics, hatchlings assimilated fiber components of their omnivorous diet more efficiently than those exposed only to deionized water or creek water. Based upon these results, flotant structures and exposure to microbes found in the feces of adult M. temminckii are recommended for future head-start efforts.
Book Synopsis Nesting Ecology of the Alligator Snapping Turtle (Macroclemys Temminckii) Along the Lower Apalachicola River, Florida by : Michael Allyn Ewert
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:
Book Synopsis A Species Action Plan for the Alligator Snapping Turtle, Macrochelys Temminckii by : Florida. Fish & Wildlife Conservation Commission
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:
Book Synopsis Status, Distribution and Habitat Use of the Alligator Snapping Turtle in Oklahoma by :
Download or read book Status, Distribution and Habitat Use of the Alligator Snapping Turtle in Oklahoma written by and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Alligator Snapping Turtle, Macrochelys Temminckii, in Florida by : E. Ross Allen
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:
Book Synopsis Reproductive Biology and Conservation Genetics of the Alligator Snapping Turtle (macrochelys Temminckii) by : Amber R. Teare
Download or read book Reproductive Biology and Conservation Genetics of the Alligator Snapping Turtle (macrochelys Temminckii) written by Amber R. Teare and published by . This book was released on 2010 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: The alligator snapping turtle (Macrochelys temminckii) is a highly aquatic turtle only found in Gulf of Mexico drainages. The biology of this species remains relatively unknown, despite years of harvest and use as a zoological attraction. The purposes of this study were to (1) determine gender size classes and assess sexual size dimorphism, (2) delineate the reproductive cycle of M. temminckii, particularly their sex steroid seasonality, and (3) evaluate possible genetic divergence between M. temminckii found in southwest Georgia and northern Florida. Alligator snapping turtles exhibit pronounced sexual size dimorphism as adults. However, determining sex in smaller individuals is difficult. The purpose of this study was to assess gender size classes and sexual dimorphism in Macrochelys temminckii. Alligator snapping turtles in southwest Georgia were trapped from March 2008 to April 2010. Captured turtles were bled, sexed based on size and ultrasound, and measured for multiple characteristics. For all measurements, adult males were larger than females. The relationships between carapace length, plastron-to-vent length, and testosterone levels were used to determine gender of smaller individuals. To ensure accurate sexual assignment when studying M. temminckii, data from multiple methods (morphological measurements, ultrasonography, testosterone levels, and, laparoscopy) should be used. To delineate the reproductive cycle of M. temminckii, blood samples were taken from captured individuals, and plasma testosterone and estradiol were measured using enzyme immunoassay. Males exhibited seasonal changes in testosterone levels, with maximum levels occurring in October. Mating behavior was elucidated from the appearance of wounds on males that only occurred in April. Females displayed seasonality in testosterone and estradiol levels, with relative peaks occurring in March and April (mating and ovulation) and September and October (follicular development). Genetic structure between M. temminckii populations separated by a dam and under different hunting pressures was assessed using microsatellite loci. Average number of alleles per locus and number of unique alleles was higher for the Florida population. Genetic structure was detected between the populations (FST = 0.043, p = 0.001). The rapid development of structuring between Florida and Georgia M. temminckii warrants further investigation into the effects of fragmentation and overexploitation on this species.
Book Synopsis Aquatic Turtle Community Dynamics in Relation to Reintroduction of Alligator Snapping Turtles, Macrochelys Temminckii by : Travis L. Anthony
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.
