. Montana amphibian and reptile status assessment, literature review, and conservation plan. Amphibians; Reptiles; Indicators (Biology); Habitat (Ecology); Wildlife conservation. Tiger Salamander (Ambystoma tigrinum) Up-to-date distribution and status information can be found on the Montana Natural Heritage Program's TRACKER website at Distribution/Taxonomy The systematics of the tiger salamander species complex are under debate, but most authorities recognize 7 varieties which range from the Atlantic Ocean to the Great Basin and Columbia Plateau and from central Mexico to central C
. Montana amphibian and reptile status assessment, literature review, and conservation plan. Amphibians; Reptiles; Indicators (Biology); Habitat (Ecology); Wildlife conservation. Tiger Salamander (Ambystoma tigrinum) Up-to-date distribution and status information can be found on the Montana Natural Heritage Program's TRACKER website at Distribution/Taxonomy The systematics of the tiger salamander species complex are under debate, but most authorities recognize 7 varieties which range from the Atlantic Ocean to the Great Basin and Columbia Plateau and from central Mexico to central Canada at elevations up to 3,350 M (11,000 ft) (Gehlbach 1967; Shaffer and McKnight 1996; Irschick and Shaffer 1997; Petranka 1998). Although the edge of the range of the gray tiger salamander, Ambystoma t. diaboli, approaches the northeastern corner of Montana, only a single subspecies, the blotched tiger salamander, Ambystoma t. melanostictum, is currently known to occur in the state. In Montana they are known to range across the prairies and, in some places, into the mountains to the east of the Continental Divide. In addition, A. tigrinum have recently been documented at a number of sites in the Tobacco Valley of northwestern Montana (Werner and Reichel 1996). It is not known whether this is a naturally occurring disjunct population, or whether their presence is the result of human introduction. Maximum Elevation 2,769 m (9,085 ft) just north of Coffin Mountain in southern Gallatin County (Dave Deavours; MTNHP 2007). Identification Eggs: Laid singly or in small linear clusters. Each ovum is black or brown above, light gray below, and surrounded by three jelly layers (Micken 1968). Ovum diameters are 2-3 mm, but total egg diameters, including the three jelly layers, are 7-9 mm (Micken 1968; Tanner 1971; Kaplan 118. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these ill
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Keywords: ., booksubjectamphibians, booksubjectreptiles, booksubjectwildlifec
