Download or read book Morphology and Behavior of the Plains Garter Snake Thamnophis Radix written by Jennifer H. Cline and published by . This book was released on 2000 with total page 122 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 The Subspecies of the Plains Garter Snake Thamnophis Radix written by Albert G.. Smith and published by . This book was released on 1949 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparative Study of Behavior in Neonate Gartersnakes Thamnophis Butleri and T Radix Colubridae in an Area of Potential Hybridization written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An isolated population of Butler's gartersnake, Thamnophis butleri (Colubridae), in southeastern Wisconsin has recently been listed as Threatened by the Wisconsin Department of Natural Resources. One of the possible reasons for the decline of T. butleri in Wisconsin is pressure from a closely related species, the plains gartersnake, T. radix. The possibility of hybridization between T. butleri and T. radix has received recent attention because T. butleri is threatened in the area where the hybridization may be occurring. This study addresses the issue of hybridization by studying the behavior of neonatal T. butleri born to females originating from areas where the ranges of the species overlap (southeastern Wisconsin), as well as from areas outside the range of T. radix (Michigan and northern Ohio). Neonatal T. radix from northern Illinois were used as a T. radix "control", Pregnant females were collected from 4 counties in southeastern Wisconsin, with the southernmost county closest to the range of T. radix. I examined antipredator behavior, prey chemosensory responses, prey preference, and morphological size traits. Several hypotheses have been put forth as to the interactions that occur when two species are sympatric, including character displacement, the importance of local ecology, and gene flow. Morphological and genetic evidence support the hypothesis of gene flow between T. butleri and T. radix, but this hypothesis has yet to be tested with only behavioral data. I had several predictions concerning the hypothesis of hybridization in these species: (1) the behaviors of T. butleri in Wisconsin would differ from the behaviors of Michigan and Ohio T. butleri in the direction of being more like T. radix; (2) the behaviors of T. butleri from the different counties and populations in Wisconsin would differ from one another; (3) T. butleri from the northern part of the Wisconsin range, further removed from the range of T. radix, would show behaviors more like Michigan T. butleri and less like T. radix than would T. butleri from the southern part of their range in Wisconsin. Michigan and Ohio T. butleri were heavier and longer than Wisconsin T. butleri, thus making the Wisconsin snakes less like T. radix. Populations within southeastern Wisconsin differed, and snakes from the population closest to T. radix were greater in length and mass than snakes from the population furthest from the range of T. radix. Snakes from Wisconsin were found to be more similar in body condition to T. radix than to Michigan and Ohio T. butleri. Differences were found in antipredator behaviors across the populations of T. butleri from southeastern Wisconsin, with snakes from the population closest to the range of T. radix striking more frequently and therefore more similar to the T. radix studied than to Michigan and Ohio T. butleri. Thamnophis butleri from Michigan and Ohio were more likely to flee than T. butleri from southeastern Wisconsin. Within Wisconsin populations, snakes further removed from T. radix were more likely to flee, and were therefore more similar to Michigan and Ohio T. butleri. Chemosensory preferences of the snakes also differed among the populations of T. butleri from southeastern Wisconsin. Snakes from the southernmost population showed a chemosensory preference for fish over worms, whereas snakes from the northern part of the range showed a chemosensory preference for worms over fish. Hence, the behaviors of T. butleri from the southern part of their range in Wisconsin, closer to the range of T. radix, are more similar to T. radix than are the behaviors of T. butleri elsewhere in their range. The implications of these findings for the conservation and genetic study of Wisconsin T. butleri are discussed.

Download or read book Plains Garter Snake thamnophis Radix written by Terry A. Messmer and published by . This book was released on 1995* with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Investigations Into the Roles of Visual and Pheromonal Stimuli on Aspects of the Behaviour of the Western Plains Garter Snake Thamnophis Radix Haydeni written by Margaret Peggy Ann Lawson and published by . This book was released on 1985 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plasticity of Morphology Chemoreception and Predatory Behavior in Garter Snakes Thamnophis Sirtalis written by Mark Andrew Krause and published by . This book was released on 2000 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Variation in Thermal Biology as a Function of Body Size in the Plains Garter Snake Thamnophis Radix written by James M. Kerfin and published by . This book was released on 2001 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Efficacy of Naphthalene and Sulfur Repellents to Cause Avoidance Behavior in the Plains Garter Snake Thamnophis Radix written by Dennis Michael Ferraro and published by . This book was released on 1993 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Morphology of the Ependymal Lining of the Garter Snakes Thamnophis Radix and T Elegans written by Mervat George Mina and published by . This book was released on 1991 with total page 70 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 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 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 Demography and Life History of an Urban Population of Plains Garter Snakes Thamnophis Radix written by Kristin M. Stanford and published by . This book was released on 2002 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Aspects of the Ecology of the Plains Garter Snake Thamnophis Radix Haydeni Kennicott in Southeastern Saskatchewan written by Marie Gerardine Dukart and published by . This book was released on 1984 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Observations on the Metabolism of Certain Tissues from the Plains Garter Snake Thamnophis Radix written by Ruth Christine Huber and published by . This book was released on 1942 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Environmental Factors on the Locomotory Activity of the Plains Garter Snake Thamnophis Radix Radix written by Carlton Heckrotte and published by . This book was released on 1960 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: