Sources of calcium, magnesium, and phosphorus for embryonic soft-shell turtles Trionyx spiniferus. Sexual differentiation in the spiny softshell turtle Apalone spinifera , a species with genetic sex determination. A comparison of orientation mechanisms in aquatic, semi-aquatic and terrestial turtles Trionyx spinifer, Chrysemys picta and Terrapene c.
Please Select Your Country. America United States Canada. O'Neill Hyperdry Keeping you dry. View all products with O'Neill Hyperdry. Softshell Boys Select Color. Back to Top Back to Top. Description Great worn alone as the seasons change and working perfectly as a mid-layer when the temp really drops, the Softshell belongs in every boy's wardrobe. Classic, block colours with pops of contrast colour and reflective detailing, there's not a day when the Softshell isn't exactly what you need.
Do not tumble dry. Do not dry clean. Wildlife Biology Program, University of Montana. Amphibians and reptiles of Montana. Mountain Press Publishing Company. Recently Disturbed or Modified. Wetland and Riparian Systems.
The food habits in Montana have not been studied. Generally, Spiny Softshells forage in the water, often in shallows with vegetation. They are considered to be generalist carnivores, and usually feed on the bottom. Major foods are crayfish, aquatic insects of at least seven orders , and fishes, but mollusks, worms, isopods, amphibians, carrion, and vegetation also are eaten Ernst et al.
Prey may be chased, ambushed, or flushed and pursued. Water temperatures of 12 degrees C. Adults emerge earlier from hibernation, and remain active longer into the fall, than juveniles. The period of activity in Montana is poorly documented, with records from early June to late July Hendricks and Reichel , Hendricks Some individuals are caught by anglers using live or dead bait, and then killed.
No information on predators is available from Montana, but some adults are incidentally captured and killed by anglers. Males reach maturity at about cm plastron belly shell length, females at cm. Mating occurs in April or May, and nesting may begin in late May and extend into August, but usually occurs in June and July in Colorado. Eggs are laid in one or more clutches in flask-shaped ground nests excavated in course sand or fine gravel to depths of cm deep; Colorado nests contained eggs, some clutches elsewhere contained as few as 4 eggs.
Eggs hatch in about days; hatching occurs in August to September in Colorado. Some hatchlings may overwinter in the nest and emerge the following spring Ernst et al. Individuals may live up to 50 years based on rates of growth and observed carapace size , with ten-year old females having a carapace length of about 25 cm, and carapace length of ten-year old males about 16 cm; the oldest female on record a captive zoo animal lived 25 years.
Montana populations of the Spiny Softshell are poorly understood, making management of them more difficult. It is apparent that the construction of dams and large reservoirs on rivers e.
Fort Peck Dam and Reservoir is detrimental to population continuity, effectively creating smaller isolated populations. Impacts of other habitat disturbances are not clear. Studies of nesting success, population structure, dispersal, and population size need to be conducted throughout the range of both Montana sub-populations Missouri River and Yellowstone River.
Routine surveys for Spiny Softshells in appropriate habitats could be made a standard part of the field duties of agency fishery biologists. Records should be maintained of the incidental "take" by anglers, who should be encouraged to report any captured Spiny Softshell; killed animals should be examined by agency fishery or wildlife biologists if possible so that data on sex, size, and food habits can be gathered and a base of information on the biology of this species developed.
Nesting sites need to be identified and protected from disturbance by human activities. Literature Cited Above Legend: Amphibians and reptiles of Wyoming. Wyoming Game and Fish Department. Turtles of the United States and Canada. Ecology of the eastern spiny softshell, Apalone spinifera spinifera , in the Lamoille River, Vermont.
Chelonian Conservation and Biology 2 3: Amphibians and reptiles in Colorado. A field guide to western reptiles and amphibians. Olson Elliot and Associates Research. Spring Creek Mine wildlife monitoring studies. Powder River Eagle Studies Incorporated. Life history notes, Testudines, Trionyx ferox Florida softshell. Notes on the natural history of portions of Dakota and Montana Territories, being the substance of a report to the Secretary of War on the collections made by the North Pacific Railroad Expedition of Proceedings of the Boston Society of Natural History.
Audubon and his journals. A checklist and distribution maps of the amphibians and reptiles of South Dakota. Transactions of the Nebraska Academy of Sciences Herpetology of the Lewis and Clark expedition Herpetological Review 9 3: Montana and its turtles. Endangered and threatened amphibians and reptiles in Montana. Endangered and threatened amphibians and reptiles in the United States.
Observations on the life history of the soft-shelled turtle Trionyx ferox, with especial reference to growth. A spiny soft-shelled turtle nest study. Developing management guidelines for snapping turtles. Management of amphibians, reptiles, and small mammals in North America. General Technical Report RM Effects of a sudden increase in natural mortality of adults on a population of the common snapping turtle Chelydra serpentina.
Canadian Journal of Zoology Characteristics of and fidelity to hibernacula in a northern population of snapping turtles, Chelydra serpentina. Sexual and seasonal differences in activity in northern population of snapping turtles, Chelydra serpentina.
Check list of the amphibians and reptiles of Montana. Proceedings of the Montana Academy of Sciences Problem of reptile play: Zoo Biology 15 3: Natural history of the Lewis and Clark expedition. Selected observations on south-central Kansas turtles. Kansas Herpetological Society Newsletter Montana Animal Species of Concern. Herpetological Review 12 3: Preneural in the evolution of Trionyx. Bulletin of the Chicago Herpetological Society 21 Feeding by Trionyx spiniferus in backwaters of the upper Mississippi River.
Journal of Herpetology 17 1: New distributional records for Wisconsin USA amphibians and reptiles. Possible funtions of ornament in labyrinthodont amphibians. A new subspecies of soft-shelled turtle from the central United States, with comments on the application of the name Amyda. Demographics of common snapping turtles Chelydra serpentina: Van Loben Sels, and D. Reproduction and nesting ecology of snapping turtles Chelydra serpentina in southeastern Michigan USA.
Check-list of North American Batrachia and Reptilia; with a systematic list of the higher groups, and an essay on geographical distribution.
Based on the specimens contained in the U. Natioanl Museum Bulletin 1: Notes on the herpetology of Dakota and Montana. Bulletin of the U. Geological Geographic Survey of the Territories 4: Scientific and standard English names of amphibians and reptiles of North America north of Mexico.
Nesting activities of an eastern spiny softshell turtle, Apalone spinifera. Canadian Field Naturalist Intraspecific variation in the cranial feeding mechanism of turtles of the genus Trionyx Reptilia, Testudines, Trionychidae. Journal of Herpetology Packaging problems of head retraction in trionychid turtles.
Montco Terrestrial Wildlife Monitoring Report. Unpublished report for Montco, Billings, Montana. Montco terrestrial wildlife monitoring report December, - July, A comparison of orientation mechanisms in aquatic, semi-aquatic and terrestial turtles Trionyx spinifer, Chrysemys picta and Terrapene c.
Dissertation, Miami University 99p. Homeward orientation mechanisms in three species of turtles Trionyx spinifer, Chrysemys picta, and Terrapene carolina. Behavioral Ecology and Sociobiololgy 7 1: A comparison of compass orientation mechanisms in three turtles Trionyx spinifer, Chrysemys picta, and Terrapene carolina.
Trionyx spiniferus spiniferus eastern spiny softshell. Herpetological Review 18 1: Aquatic respiration in Trionyx spinifer asper.
Relationship between length and weight in the spiny softshell turtle. A preliminary ecological study of the soft-shelled turtle Trionyk muticus in the Kansas River. Israel Journal of Zoology Species of special interest or concern. Serological survey of softshells with other turtles. The fine structure of home ranges of male Chelydra serpentina: Canadian Journal of Zoology 65 Age estimates for snapping turtles.
Journal of Wildlife Management 53 2: The influence of growth rate on age and body size at maturity in female snapping turtles Chelydra serpentina. Movement patterns, activity, and home range of the eastern spiny softshell turtle Apalone spinifera in northern Lake Champlain, Quebec, Vermont. Canadian Journal of Earth Science. Amphibian and reptile baseline survey: CX field study area Bighorn County, Montana. Maxim Technologies, Billings, MT.
Influence of hydric environment on oxygen consumption by embryonic turtles Chelydra serpentina and Trionyx spiniferus. Herpetological Review 22 2: Sexual differentiation in the spiny softshell turtle Apalone spinifera , a species with genetic sex determination.
Journal of Experimental Zoology 2: Herpetological Review 17 3: Road mortality of snapping turtles, Chelydra serpentina, in central Ontario during their nesting period. The Canadian Field Naturalist 1: On the geology and natural history of the upper Missouri.
Catalogue of the collections in geology and natural history, obtained by the expedition under command of Lieutenant G. Shubert Explorer on the northern plains: Warren's preliminary report of explorations in Nebraska and Dakota, in the years '' Engineer Historical Studies No.
Amphibian and reptile survey on Montana refuges: North Dakota Outdoors 55 1: Journal of Herpetology; 7 2: Patterns of survivorship in turtles order Testudines. University of Nebraska Press. Wibaux-Beach wildlife baseline study - nongame species.
softshell jakna / ohranjeno softshell jakno v velikosti / Ima drobno pikico - na sliki (morda gre s pranjem ven), vendar ni moteča. 7 eur. Jakke, Softshell, Ej Sikke Lej, str. , Super fin Ej Sikke Lej softshelljakke str. cm/6år. Model: Soft Shell Jacket OA Owls Dahlia Purple. Gennemgående lynlås. Aftagelig hætte. Rib ved hals og håndled. To forlommer. Justerbar elastik ved underkant. Vind- og vandafvisende. Fremstår pæn og . Prodám bundu softshell,značky lewro, velikost , bez kazů a známek poškození.