Download or read book Bullsnakes Pituophis Catenifer Sayi in Alberta written by Kelley J. Kissner and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bullsnakes Pituophis Catenifer Sayi in Alberta written by Kelley Joan Kissner and published by Alberta Public Affairs Bureau. This book was released on 2003-01-01 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Bullsnakes Pituophis Catenifer Sayi in the Upper Midwest written by Joshua M. Kapfer and published by . This book was released on 2007 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bullsnakes (Pituophis catenifer sayi) have been the subject of few research projects, locally and nationally, despite supposed regional declines. Little rigorously obtained and analyzed ecological data exists for this species with which to make sound conservation or management decisions. This is particularly true in the upper Midwest, which represents the periphery of the snake's geographic range. The ecology of bullsnakes in this peripheral location was investigated by studying (1) habitat preferences, both macrohabitat and microhabitat; (2) movement patterns, including measures of home range, movement rates, and site fidelity; and (3) population characteristics such as estimations of population size, sex ratio analysis and mortality rates (via mark-recapture methods). Data were obtained by radio-tracking 14 to 20 adult bullsnakes in Sauk County, Wisconsin from 2003-2005. Male and female bullsnakes exhibited a preference for open bluff faces (
Download or read book Variable Habitat Selection and Space Use Among Bullsnake Pituophis Catenifer Sayi Populations written by Tera Edkins and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The distribution of resources determines space use and habitat selection by snakes. Particularly in northern areas, the proximity of overwintering den sites to summering habitat likely influences space use. The resources driving seasonal movements among habitats may vary among populations and thus, space and habitat requirements may also vary. In addition, human modification may affect resource use by altering available habitats and resources. Although previous studies have reported differences in spatial ecology among populations, the driving factors of this variation remain to be addressed for many species. Bullsnakes (Pituophis catenifer sayi) reach their northern range limits in southern Saskatchewan, where they are currently listed as Data Deficient by the Committee on the Status of Endangered Wildlife in Canada. Many studies have focused on core range areas, while northern studies have focused on one population in the Frenchman River Valley, Saskatchewan. The habitat and space requirements identified in these previous studies, however, may not be relevant to all bullsnake populations. I examined bullsnake space and habitat use among independent populations in three river valleys (Frenchman River, South Saskatchewan River, and Big Muddy Valleys) in Saskatchewan, with varying habitat types (natural and anthropogenic) and availability. I tracked bullsnakes using radio-telemetry, estimated home range areas and movement patterns, and measured third and fourth order habitat selection. The objectives of my research were (1) to examine the extent to which habitat selection and space use may vary among populations and (2) to identify important habitat features in common among snakes from different populations. Saskatchewan bullsnakes demonstrated variable space use and movement patterns among populations, exceeding space use requirements previously observed in southern areas. One population (Big Muddy Valley), on average, used 2.7 to 3 times less space, travelled 2.3 to 2.7 times shorter distances from overwintering sites, and had greater home range overlap than snakes from the other populations (Frenchman and South Saskatchewan River Valleys). This suggests that bullsnakes in the Big Muddy Valley had a closer spatial association between seasonal habitats. Bullsnakes appear to be flexible in terms of their third order habitat selection. Native habitats were used as expected across all valleys, but human-modified habitats were used at different frequencies across populations. These differences in habitat selection among populations are most likely due to differences in habitat availability among landscapes. Fourth habitat selection, however, was similar among populations, with bullsnakes selecting for sites typically within 1 m of a refuge site (including burrows, cement pads, and rock piles). It appears that bullsnakes occupy variable-sized home ranges and move variable distances. Bullsnakes also appear to be flexible in terms of how they meet resource requirements across their geographic range via habitat selection at a broad spatial scale. My study did find, however, that at a fine spatial scale refuge sites are an important habitat feature for bullsnakes. Conservation and management strategies are typically broad and are implemented as if populations of the same species have similar habitat requirements. However, my results indicate that this is not the case. As such, management plans may not be applicable to all populations.
Download or read book Bull Snakes written by Ellen Frazel and published by Bellwether Media. This book was released on 2011-08-01 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Simple text and full-color photography introduce beginning readers to bull snakes. Developed by literacy experts for students in kindergarten through third grade"--
Download or read book COSEWIC Assessment and Status Report on the Bullsnake Pituophis Catenifer Sayi in Canada written by and published by . This book was released on 2017 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Raising Bullsnake written by Jordan Thiago and published by Independently Published. This book was released on 2023-12-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The North American bull snake is a harmless snake species. Pituophis catenifer is the scientific name for bull snakes, which are colubrid snakes. Bull snakes are easily mistaken for rattlesnakes due to their similar appearance; however, rattlesnakes have venomous fangs while bullsnakes do not. - Bullsnakes are extremely large snakes that can grow to a whopping 8 feet (2.4 meters) in length! Their characteristic dark blotches or bands on a lighter background may take on different hues and styles depending on their geographic range. Grasslands, prairies, deserts, and open woodlands are common habitats for these animals because of their skill as burrowers and the fact that they eat small mammals, birds, and even reptiles. They have a powerful constricting ability that they employ to kill their prey by immobilizing it. - Bullsnakes are beneficial because they help reduce rodent populations and pose no threat to humans. They are not aggressive and prefer to avoid confrontations with humans, despite their tendency to hiss loudly and swell up when threatened. Bullsnakes are popular among reptile enthusiasts and are sometimes kept as pets because of their unique appearance and usefulness in reducing pest populations.
Download or read book Saving Snakes written by Nicolette L. Cagle and published by University of Virginia Press. This book was released on 2023-01-17 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beautiful to behold and extremely sensitive to its environment, the snake is nonetheless stigmatized as a serpent, a creature that almost universally inspires fear. At a time when so many animals are endangered, who will speak up for the snake? Snake populations are declining precipitously around the globe, but calls for their conservation are muted by fear and prejudice. Saving Snakes offers a new approach to understanding snakes and preserving their populations—an approach built on respect. Nicolette Cagle has traveled the world in search of snakes, from the Midwest and the southeastern United States to Cuba, Nicaragua, and Australia, and spent decades conducting natural science research on the patterns of snakes in regions where urban development encroaches upon the natural world. Her book offers a firsthand account of the strange and secretive lives of snakes, and reveals their devastating losses. Beautifully and accessibly written, Saving Snakes entwines Cagle’s personal narrative with deep scientific and historical research. Through the author’s exploration of her evolution as a field naturalist, it provides a blueprint for developing a conservation consciousness among young people and paves the way for increased inclusivity in the male-dominated field of herpetology. While fundamentally a book about snakes, this is also the story of one woman's pursuit of her passion as she searches for, studies, and advocates for these enigmatic creatures.
Download or read book The Influence of Weather Time of Season and Time of Day on Bullsnake Pituophis Atenifer Sayi Thermoregulation and Habitat Selection written by Noah Brian Johnson and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The grasslands of Western Canada are exposed to one of the most variable terrestrial climates on Earth. Ectothermic reptiles such as the bullsnake (Pituophis catenifer sayi) must respond to this variation by altering their behaviour over daily and seasonal scales. In Chapter 2, I addressed questions regarding the extent to which bullsnakes thermoregulate. I examined how body temperatures (Tb) varied with available operative temperatures (Te) over an active season at a site in southwestern Saskatchewan, Canada. Bare ground Te was variable (x̄ min = 9.3, x̄ max = 31.4°C) and was outside voluntary limits (15 - 35°C) 45 % of the time. However, burrows created by mammals provided stable thermal conditions that remained within voluntary ranges for 93 % of the active season. Bullsnakes should not need to move far to thermoregulate because of thermal gradients (up to 27.2°C in less than 1 m) formed between burrows and patches of sun-exposed bare ground. Time of day, day of year, and bare ground Te (R2 = 0.578) were useful predictors of Tb (x̄ min = 20.1, x̄ max = 29.1°C). Bullsnakes thermoregulated by conforming to Te near their preferred range (21 to 27°C), selecting locations that enabled heating up below this range, and avoiding warmth above this range. My results support the hypothesis that predicts reptiles will thermoregulate more when environmental temperatures deviate from preferred ranges, and when energetic costs of movement are lower due to high thermal heterogeneity. Despite the extreme surface temperatures of high-latitude grasslands, thermoregulation may be easier for snakes than in high-latitude forests due to the thermal gradients available because of burrows in areas exposed to sun. In Chapter 3, I examined the influence of time (time of day, day of year) and weather (temperature, humidity, and precipitation) on a suite of behaviours in 4 bullsnake populations in Saskatchewan. I studied variation in 4th order use and selection for burrows, concealment probability, relocation probability, and movement distances. Bullsnakes altered behaviours in response to time and weather. The greatest variation was explained for concealment (R2 = 0.244) and 4th order habitat selection (R2 = 0.144 - 0.169). However, 4th order habitat use (R2 = 0.0366), relocation (R2 = 0.0419), and movements (R2 = 0.025 - 0.071) were relatively unpredictable based on time and weather variables. Movement distances were particularly variable among individuals. Overall bullsnake activity was highest in spring and during afternoons. Poor weather and unfavourable temperatures were avoided. Humidity was more important than expected. Humidity (or precipitation) was negatively associated with activity in spring or at cool temperatures, but positively associated with activity in summer or at hot temperatures. I suggest that current management recommendations for bullsnakes are valid. However, sample biases could create the false appearance of different habitat requirements among populations if weather conditions, time of day, or season were to differ among studies. Time and weather were useful for predicting the probability of finding bullsnakes on the surface (AUC = 0.8015) and should be used to forecast optimal conditions for surveys. Snake behaviour is often considered to be unpredictable, but the results of Chapter 2 and 3 suggest that weather variables and time are important for predicting bullsnake behaviour, and particularly general surface activity. Behaviours varied widely over the active season, and the effects of time and weather variables were context dependent. My thesis highlights the importance of long study periods under a wide range of conditions to understand the ecology of reptiles in highly seasonal environments.
Download or read book The Natural History of the Snakes and Lizards of Iowa written by Terry VanDeWalle and published by University of Iowa Press. This book was released on 2022-08-10 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: "My major goal in this book is to provide information on the natural history of the snakes and lizards of Iowa that will be useful to professional and amateur herpetologists, students, wildlife biologists, and all general readers interested in these fascinating creatures. I have combined general information with technical details about the morphology, distribution, ecology, behavior, and reproduction of each species and subspecies of snake and lizard found in Iowa"--
Download or read book Survey Protocol for the Richardson s Ground Squirrel written by Alberta. Fish and Wildlife Division and published by . This book was released on 2003 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Alberta Sustainable Resource Development, Fish & Wildlife, Alberta Conservation Association."
Download or read book Snakes of North America written by Alan Tennant and published by Taylor Trade Publishing. This book was released on 2003-06-19 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing thorough descriptions of almost 200 species, this guide presents thousands of facts and figures that will help you identify, understand, and appreciate these important and remarkable animals. Each species and subspecies account includes the latest findings on abundance, size, reproductive habits, prey, habitat, behavior and venomous/nonvenomous status.
Download or read book Bullsnakes in Alberta written by Kissner and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology Conservation and Status of Reptiles in Canada written by Carolyn N. L. Seburn and published by Society for the Study of Amphibians & Reptiles. This book was released on 2007 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Dictionary of Reptiles written by Rube Allyn and published by . This book was released on 1952 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Amphibians and Reptiles of North Dakota written by George Carlos Wheeler and published by . This book was released on 1966 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Encyclopedia Americana written by and published by . This book was released on 1957 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
