Download or read book Ecology of the Common Garter Snake Thamnophis Sirtalis at the Northern Limit of Its Range microform written by Karl W. (Karl Walter) Larsen and published by National Library of Canada. This book was released on 1986 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use and Abundance of the Common Garter Snake Thamnophis Sirtalis at the Northern Limit of Its Range in Manitoba written by Jonathan P. Wiens and published by . This book was released on 2008 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The common garter snake (Thamnophis sirtalis) is a wide-ranging species that reaches the northern limit of its range in central Manitoba. Although Thamnophis sirtalis (and especially the subspecies parietalis) has been the subject of intense biological research, there are large gaps of knowledge regarding the ecology of this species in extreme northern latitudes. A recently discovered northern hibernaculum in the boreal forest region near Jenpeg, Manitoba, provided an ideal opportunity for comparing the ecology and biology of this species with geographically distant populations. The climate at Jenpeg is sub-arctic continental and consists of cold winters, and cool short summers. The area lies on the Canadian Shield. and is characterized by surface outcrops of granitic bedrock. Garter snakes were found colonizing artificial habitat features for winter habitat including dikes and rock quarries. Research on the ecology of this species was conducted from May 2005 to May 2007. Snakes emerged in late April and early May. Activity at the den lasted approximately two weeks before snakes dispersed for the summer. Mark-recapture results from 2005 indicate that this population is small (~79 individuals +_ 10.6) and exhibits a wide variation in adult sizes (350-1340 mm total length). Radio telemetry and funnel trapping have shown that summer habitat use is concentrated around wetlands. with wood frogs (Lithobates sylvatica) constituting the most common food source (56%). Many snakes dispersed over distances exceeding two kilometres, despite the apparent abundance of prey species near the den site. Analysis of colour patterns revealed substantial variation in the skin folds between the lateral scales. The majority of snakes expressed no red colouration on the lateral scales (45%) while some individuals expressed rare examples of bright red colouration (erythristism) (6%) and dark colouration (melanism) (1%). Traditional local knowledge gathered from aboriginal hunters, fishers and trappers outlined the long-term presence of garter snakes in the region, and provided local distribution data for the species. Aboriginal peoples stated that the overall population density of snakes in the region was low, and provided additional support for the findings of large variation in body sizes and colour. It is hypothesized that relative reproductive isolation and a prolonged overwintering period are factors contributing to the uniqueness of this northern population. Information from this study will benefit our understanding of garter snake biology and provide valuable information to assist the conservation efforts of wildlife and landscape managers in the region.
Download or read book COMPARATIVE ECOLOGY OF THE COMMON GARTER SNAKE THAMNOPHIS S SIRTALIS THE RIBBON SNAKE THAMNOPHIS S SAURITUS AND BUTLER S GARTER SNAKE THAMNOPHIS BUTLERI IN MIXED POPULATION written by Charles Congden Carpenter and published by . This book was released on 1951 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Garter Snakes written by Douglas Athon Rossman and published by University of Oklahoma Press. This book was released on 1996 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Garter Snakes: Evolution and Ecology is the first comprehensive review of the genus Thamnophis in nearly ninety years. The book includes color plates of all species (many never previously figured in color); extensive discussion of ecology, behavior, and captive care; and a modern key to all species - as well as species-by-species summaries of the systematics and natural history of the thirty different garter snakes now recognized. Of particular interest are the descriptions of lesser-known species in Mexico. Because interest in reptiles has grown dramatically in recent years, this comprehensive guide is designed to appeal to as wide an audience as possible - to both the professional herpetologist interested in the biology of Thamnophis and the hobbyist who wants to know more about these diverse and widespread snakes, both in the home aquarium and in the wild. This up-to-date, appealing book, written by the world's leading authorities, will be extremely useful not only to herpetologists but also to conservationists, ecologists, pet owners, and other readers generally interested in natural history.
Download or read book Occurrence of the Garter Snake Thamnophis sirtalis in the Great Plains and Rocky Mountains written by T. Paul Maslin and published by DigiCat. This book was released on 2022-11-22 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains is a work by T. Paul Maslin. Garter snake is a common place name for largely innocuous, small to medium-sized serpents fitting to the genus Thamnophis in the family Colubridae. Native to North and Central America, species in the genus Thamnophis can be discovered from the subarctic plains of Canada to Costa Rica.
Download or read book Common Garter Snakes written by Rebecca Sabelko and published by Bellwether Media. This book was released on 2019-01-01 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ssss! Is that a common garter snake hiding in the brush? These cold-blooded critters slither through meadows all across the United States. In this low-level title, early readers will learn all about how common garter snakes hunt, hibernate, and hatch their young.
Download or read book Garter Snakes written by Mary Ann McDonald and published by Capstone. This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the physical characteristics, habitat, and behavior of the common garter snake.
Download or read book Natural History of the Plains Garter Snake Thamnophis Radix at the Northern Limit of Its Range in Alberta Canada written by Krysia Tuttle and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural history is a cornerstone of both theoretical and applied ecology, and provides the context for comparative and experimental studies. I studied the natural history of the Plains Garter Snake (Thamnophis radix) near the northern limit of its range in Miquelon Lake Provincial Park. Alberta, Canada. As is typical of garter snakes, T. radix at Miquelon were sexually dimorphic as adults - females grew faster, reached larger sizes and had relatively shorter tails than males. Mating occurred in spring and females gave birth in August; litter size ranged from 8-50 and was correlated with size of female. These snakes were generalist predators, but fed mainly on anurans when small, adding mammals and other prey as they grew. Despite sexual size dimorphism, I found no difference in diet between adult males and females. Feeding frequency was low overall (22%). especially in gravid females. In summer, snakes were found mainly near cover on south-facing field edges or in marshes, but not in forests, and moved relatively little. However, movement distances increased in fall as snakes sought hibernating sites. Snakes hibernated for up to eight months, either individually or in pairs, in rodent burrows. This study also revealed the importance of radiotelemetry when studying movements of small, secretive animals, as there were significant differences between the results obtained through opportunistic captures versus telemetry: habitat descriptions from opportunistic captures therefore were biased, although they still captured some elements of microhabitat use by T. radix. The data from this study will be important for comparative studies of the ecology of garter snakes and for the management of this species on the human-altered landscape surrounding Miquelon Lake.
Download or read book An Ecological Study of the Garter Snake Thamnophis Sirtalis written by and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural History of the Plains Garter Snake Thamnophis Radix at the Northern Limit of Its Range in Alberta Canada written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural history is a cornerstone of both theoretical and applied ecology, and provides the context for comparative and experimental studies. I studied the natural history of the Plains Garter Snake (Thamnophis radix) near the northern limit of its range in Miquelon Lake Provincial Park. Alberta, Canada. As is typical of garter snakes, T. radix at Miquelon were sexually dimorphic as adults - females grew faster, reached larger sizes and had relatively shorter tails than males. Mating occurred in spring and females gave birth in August; litter size ranged from 8-50 and was correlated with size of female. These snakes were generalist predators, but fed mainly on anurans when small, adding mammals and other prey as they grew. Despite sexual size dimorphism, I found no difference in diet between adult males and females. Feeding frequency was low overall (22%). especially in gravid females. In summer, snakes were found mainly near cover on south-facing field edges or in marshes, but not in forests, and moved relatively little. However, movement distances increased in fall as snakes sought hibernating sites. Snakes hibernated for up to eight months, either individually or in pairs, in rodent burrows. This study also revealed the importance of radiotelemetry when studying movements of small, secretive animals, as there were significant differences between the results obtained through opportunistic captures versus telemetry: habitat descriptions from opportunistic captures therefore were biased, although they still captured some elements of microhabitat use by T. radix. The data from this study will be important for comparative studies of the ecology of garter snakes and for the management of this species on the human-altered landscape surrounding Miquelon Lake.
Download or read book Natural History of Common Gartersnakes Thamnophis Sirtalis in East central British Columbia written by Jillian McAllister and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely distributed species typically exhibit variation in various aspects of their ecology throughout their range. Such variation offers opportunities for fundamental studies in evolution, including local adaptation, biogeographic rules, distributional limits, and speciation. Geographic variation also limits our ability to extrapolate from one population to another, making site-specific knowledge of ecology essential for wildlife management and conservation. I studied the natural history of Common Gartersnakes (Thamnophis sirtalis) at two sites in east-central British Columbia, where active seasons are short and cool. I used opportunistic sampling of snakes to study general features of their ecology and radiotelemetry to study movements and habitat selection, including hibernating sites. In September, snakes move from summer habitats to hibernating sites and then emerge from hibernation in April or May. Adult female T. sirtalis overwintered with 0 to 16 other adults in inconspicuous underground hollows, typically in forested habitats, near water and/or coarse woody debris; this is distinct from the large-scale communal hibernation seen in other northern populations. Hibernacula were typically distant from summer habitat (mean = 1485 ± 937 m SD, n = 8, range = 148-2657 m). Under the assumption that snakes exhibit site fidelity to hibernacula in consecutive years, I estimated the cumulative distance moved over the entire active season to be 7011 ± 3756 m SD (n = 9, range = 3510-15015 m). Gravid female snakes moved at significantly lower rates, followed more tortuous paths, and inhabited areas that were more open-canopied than their nongravid counterparts (n = 13). Nongravid snakes used locations with a higher percentage of ground cover than gravid snakes. Mating occurred in early spring near the hibernacula and parturition in early to mid August in summer habitat; litter size ranged from 3 to 25 and was not significantly correlated with the size of the female. Adult snakes preyed exclusively on adult Western Toads (Anaxyrus boreas) and juvenile snakes fed on leeches and metamorphosing toads. Through the identification of migratory routes, relevant summer and winter habitat characteristics, and hibernation sites, my study contributes to the protection and conservation of northern reptiles, which are particularly vulnerable to population declines compared to southern populations due to the restrictive cold climate.
Download or read book Further Study of the Garter Snake Thamnophis Sirtalis in Northeastern Kansas written by Henry Sheldon Fitch and published by . This book was released on 2001 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Preference and Habitat Use of Eastern Garter Snakes Thamnophis Sirtalis Sirtalis in a Southern Ontario Peatland written by Curtis Abney and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Garter snakes are the most widespread reptile in North America. Despite occupying vastly different biogeoclimatic zones across their range, evidence suggests that the thermal preference (Tsel) of garter snakes has not significantly diverged among populations or different Thamnophis species. The reason for garter snake's wide thermal tolerance could lie in their flexible thermoregulatory behaviours and habitat use. I aimed to investigate this relationship by first identifying the Tsel of a common garter snake species (Thamnophis sirtalis sirtalis) via a thermal gradient in the lab. I used this Tsel parameter (27.82 - 32.15 oC) as a benchmark for calculating the thermal quality of open, mixed, and forested habitats all used by the species. I measured the thermal profiles of these habitats by installing a series of operative temperature models that mimicked the thermal properties of living garter snakes and recorded environmental temperatures as living snakes experience them. Lastly, I used coverboards to survey the habitat usage of T. s. sirtalis. Of the three habitats, I found that the open habitat offered the highest thermal quality throughout the snake's active season. In contrast, I recorded the greatest number of snakes using the mixed habitat which had considerably lower thermal quality. Although the open habitat offered the greatest thermal quality on average, environmental temperatures regularly exceeded the upper limits of the animals' thermal tolerance, greatly restricting the activity window for Eastern garter snakes. Therefore, the open habitat may be less thermally attractive to T. s. sirtalis. My data show that not all habitat types used by Eastern garter snakes share the same quality and the relationship is not as simple as warm, open habitats are better. Rather, these animals may preferentially seek out areas that offer a mix of both open and closed-canopy spaces to suit their thermoregulatory needs. In conclusion, T. s. sirtalis may select more thermally stable habitats over those that present them with thermal extremes and greater constraints to their surface activity.
Download or read book An ecological study of the garter snake Thamnophis sirtalis written by Henry Sheldon Fitch and published by . This book was released on 1965 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variation Within a Brood of Pacific Garter Snakes written by Edna Marie Fisher and published by . This book was released on 1928 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Gathering of Garter Snakes written by and published by Dutton Juvenile. This book was released on 1993 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Text and photographs depict the physical characteristics, behavior, and life cycle of the red-sided garter snake.
