. Montana Amphibien und Reptilien status Assessment, Literatur und Erhaltung Plan. Amphibien und Reptilien; Indikatoren (Biologie); Lebensraum (Ökologie); Artenschutz. Western Kröte (Bufo Boreas) Up-to-date Verbreitung und Status Informationen können auf TRACKER website die Montana natürlichen Erbes Programm an mtnhp.org. gefunden werden Verteilung/Taxonomie der westlichen Kröte ist derzeit als zwei Unterarten, die von den Rocky Mountains bis zum Pazifik Küste und von Baja Mexiko Southeast Alaska und das Yukon Territorium in einer Höhe bis zu 3.640 m (11.940 ft) (Stebbins 2003 Palette erkannt; Ham

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. Montana amphibian and reptile status assessment, literature review, and conservation plan. Amphibians; Reptiles; Indicators (Biology); Habitat (Ecology); Wildlife conservation. Western Toad (Bufo boreas) Up-to-date distribution and status information can be found on the Montana Natural Heritage Program's TRACKER website at mtnhp.org. Distribution/Taxonomy The western toad is currently recognized as two subspecies that range from the Rocky Mountains to the Pacific Coast and from Baja Mexico to southeast Alaska and the Yukon Territory at elevations up to 3, 640 M (11, 940 ft) (Stebbins 2003; Hammerson 1999). One subspecies, the boreal toad, Bufo boreas boreas is currently recognized as occuring in Montana. However, mitochondrial DNA analysis indicates that four main phylogenetic groups exist and each may warrant recognition as separate species: (1) a southern Rocky Mountain group in Colorado and southern Wyoming; (2) a southern Utah group; (3) a northwest group including all specimens in Montana, northern Idaho, and northern Wyoming; and (4) a southwest group composed of individuals currently recognized as the California toad, Bufo boreas halophilus, the black toad, Bufo exsul, and the Amargosa toad, Bufo nelsoni (Goebel 1996). If these phylogenetic groups are eventually recognized as full species it is likely that populations across Montana and the Pacific Northwest will be recognized as the boreal toad, Bufo boreas. In Montana the species has been documented across the mountainous portion of the state west of the Beartooth Plateau, and the eastern edge of the Castle, Little Belt, and Highwood Mountains (Black 1970a; Black 1971). Maximum Elevation 2, 810 m (9, 220 ft) in Gallatin County (Maxell et al. 2003). Identification Eggs: Laid in long strings that are one to three (usually two) eggs wide in a zigzag pattern and contain 181. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and

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• booksubjectamphibians
• booksubjectreptiles
• booksubjectwildlifec