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 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 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 Home Range and Habitat Use of Northern Mexican Garter Snakes Thamnophis Eques Megalops in Central Arizona written by Megan Young and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenotypic Variation in Common Garter Snakes Thamnophis Sirtalis in the Southeastern United States in Relation to Sex and Habitat Use written by Zachary William Martin and published by . This book was released on 2017 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Programs of Geography in the United States and Canada written by and published by . This book was released on 2008 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foraging Behavior and Habitat Use in an Insular Population of Eastern Garter Snakes Thamnophis Sirtalis written by Ruth Eamon Howell and published by . This book was released on 2009 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life history Parameters of the Red sided Garter Snake Thamnophis Sirtalis Parietalis in an Extreme Environment the Interlake Region of Manitoba written by Patrick T. Gregory and published by . This book was released on 1977 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 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 Garter Snakes written by Goodman Roberts and published by Independently Published. This book was released on 2024-08-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Common garter snakes (Thamnophis sirtalis) are small, active snakes found all over North America. They make great pets, especially for beginners, because they are harmless and relatively easy to care for. However, they do need a habitat that's big enough for them to move around comfortably. Before you adopt a garter snake, it's important to learn about their origins, behavior, and daily needs. This guide will help you understand everything you need to know about these beautiful, scaled pets. Origins and Habitat Garter snakes are native to North America and thrive in various environments, from forests to grasslands. In captivity, they need a spacious enclosure with hiding spots, a water dish, and appropriate temperature and humidity levels. Behavior and Temperament These snakes are known for being friendly and active. They enjoy exploring their surroundings and are generally easy to handle. However, it's important to handle them gently and regularly to keep them accustomed to human interaction. Daily Care Needs Garter snakes require: - A secure and spacious enclosure - Fresh water daily - A varied diet, typically consisting of small fish, worms, and amphibians - Proper temperature and humidity levels By meeting these needs, you can ensure your garter snake stays healthy and happy. Enjoy the experience of caring for this fascinating reptile with beautiful scales!
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 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 Red sided Garter Snake Thamnophis Sirtalis Parietalis Relocation and Education Project written by Danielle Lisa Takats and published by . This book was released on 2002 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Quantitative Niche Comparison of the Western Plains Garter Snake Thamnophis Radix Haydeni and the Red Sided Garter Snake Thamnophis Sirtalis Parietalis in Allopatric and Sympatric Regions of Manitoba s Interlake District written by Donald Ray Hart and published by . This book was released on 1975 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Thamnophis radix haydeni) and the red-sided garter snake (Thamnophis sirtalis parietalis) in the Interlake district of Manitoba were compared with respect to feeding habits and six environmental factors. Thamnophis sirtalis occuring in sympatry with T. radix altered its feeding habits, but not in such a way as to produce niche displacement. Its feeding habits did not differ significantly from those of T. radix either in allopatry or in sympatry. Changes in its feeding habits are attributed to changes in the relative availability of food items. Of the environmental factors examined, habitat, air temperature and substrate temperature contributed most strongly to niche discrimination in allopatry, T. radix occurring near meadow ponds at high air but low substrate temperatures and T. sirtalis occurring near fen-like marshes of the aspen forest at lower air but higher substrate temperatures. Thamnophis sirtalis was adapted to lower air temperatures than T. radix by virtue of its greater ability to absorb radiant energy. In sympatry the contributions of habitat and air temperature to niche discrimination were reduced whereas those of light intensity and substrate temperature were increased, T. radix selecting a higher value of both than T. sirtalis. This shift in the importance of environmental factors to niche discrimination need not be attributed to species interaction but may be explained in terms of behavioral compensation for concurrent changes in the available niche. The shift was produced, in part, by changes in the daily activity pattern, towards mid-day for T. radix and away from mid-day for T. sirtalis. The degree of bimodality in the activity pattern was directly proportional to temperature, available temperatures being lower in sympatry for T. radix and higher in sympatry for T. sirtalis.
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:
