Steven C. Amstrup Geoff S. York Eric V. Regehr Kristin S. Simac Tom S. Smith Steven T. Partridge Torsten Bentzen Kristin S. Amstrup David C. Douglas Jon Aars Nicholas J. Lunn Andrew E. Derocher George M. Durner 2006 <p>Since the 13^th Working Meeting of the Polar Bear Specialist Group the U.S. Geological Survey (USGS) has seen the completion of many research projects and the start of many new ones. Much has been accomplished and yet we have new challenges awaiting us. This report summarises our focal questions and progress in those areas.</p> application/pdf en IUCN Polar bear research in Alaska text