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North Cascades National Park Service Complex Natural Resource Preservation Program Amphibian Inventory North Cascades National Service Park Complex 1998 - Progress Report


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The current study began in 1996 with an amphibian inventory in North Cascades National Park Service Complex Big Beaver watershed and was funded as part of a four year program to inventory amphibians in Pacific northwest National Parks, including Olympic (OLYM), Mount Rainier (MORA), and North Cascades (NOCA). This report includes information collected in 1998 focusing on finishing Bridge Creek and Thunder Creek watersheds and data collected in conjunction with the Seattle City Light funded lake ecology project.


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The objectives of the four year study were to conduct a baseline inventory, evaluate environmental factors affecting distribution of amphibians, and develop protocols for both extensive and intensive monitoring. The objectives of this report are to only present methods and data collected during the 1998 field season in watersheds over a wide range of the North Cascades National Park Service Complex. Relationships between species distributions and environmental attributes will be analyzed in a final report.

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