Amphibians of Oregon, Washington and British Columbia: A Field Identification Guide
Frogs, toads and salamanders are important indicators of the quality of the environment, and they're cute little critters too. Newly revised and updated, this innovative field guide describes the life histories, habitat requirements and vulnerabilities of 38 species of amphibians in the Pacific Northwest, plus a new appendix of additional species. Color photographs and illustrated keys help identify all life stages of each species. As well, a multitude of fascinating details about amphibians are provided, including: ˇ habitat preferencesˇ tips for finding themˇ planning amphibian surveysˇ their activity through the seasonsˇ guidelines for handling and measuring themˇ photography tipsˇ a table that compares confusing speciesˇ current status.This handy, informative book is sure to be invaluable to biologists and field technician experts as well as to individuals on a family outing or school field trip.
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American Bullfrog amphibians aquatic Basin Spadefoot belly Boreal Chorus Frog breed British Columbia Cascades Frog Coastal Giant Salamander Coastal Tailed Frog Columbia Spotted Frog Confusing Species Comparisons Cope's Giant Salamander costal grooves dorsal fin dorsal stripe dorsolateral folds Egg mass Ensatina eyes Foothill Yellow-legged Frog FOREST AND LOGS fourth toe frogs and toads gill stalk Green Frog habitat head hind foot hind legs jelly layer Juveniles and adults larvae lay their eggs legs are adpressed Long-toed Salamander metamorphose moist Mountain Tailed Frog neotenic Northern Leopard Frog Northwestern Salamander Oregon Spotted Frog outer fifth Pacific Treefrog pale patches PHYSIOGRAPHIC PROVINCES Oregon Plethodon Red-legged Frog Rocky Mountain Tailed Rough-skinned Newt side filaments side view snout speckling stripe color surface tadpoles tail trunk talus Tiger Salamander tooth rows top edge Torrent Salamander underside usually vegetation Wandering Salamander Washington Western Toad Wildlife Wood Frog Woodhouse's Toad yellow