North America Priority Conservation Areas_Grasslands 2010

In 2004, 55 GPCAs were identified by biodiversity experts through research and a workshop co-organized by the CEC. Details of the initial selection process can be found in North American Grassland Priority Conservation Areas: Technical Report and Documentation, and the CEC publication Grasslands: Toward a North American Conservation Strategy. In 2010, the GPCAs were updated by the Rocky Mountain Bird Observatory (RMBO) with data from the United States Geological Survey (USGS) on national and international land cover and elevations; habitat, species, priority areas and land cover data from states, universities and nongovernmental organizations; USGS Breeding Bird Surveys (BBS) and Christmas Bird Counts; Rocky Mountain Bird Observatory (RMBO) bird and vegetation surveys; Canadian Wildlife Service (CWS) bird surveys; and from individual researchers. The details for the revision of each GPCA can be found in Assessment and Revisions of North American Grassland Priority Conservation Areas. Files Download2004年，生物多样性专家通过相关研究及由美洲环境合作委员会（Commission for Environmental Cooperation，CEC）联合举办的研讨会，确定了55个草地优先保护区域（Grassland Priority Conservation Areas，GPCAs）。该类区域的初始遴选流程细节可参阅《北美草地优先保护区域：技术报告与文献汇编》（"North American Grassland Priority Conservation Areas: Technical Report and Documentation"）以及CEC发布的官方出版物《草地：迈向北美保护战略》（"Grasslands: Toward a North American Conservation Strategy"）。2010年，落基山鸟类观测站（Rocky Mountain Bird Observatory，RMBO）对GPCAs进行了更新，所用数据来源涵盖：美国地质调查局（United States Geological Survey，USGS）提供的国家及国际土地覆盖与高程数据；各州、高校及非政府组织提供的栖息地、物种、优先区域及土地覆盖数据；美国地质调查局繁殖鸟类调查（Breeding Bird Surveys，BBS）与圣诞鸟类统计数据；落基山鸟类观测站（RMBO）自主开展的鸟类及植被调查数据；加拿大野生动物服务局（Canadian Wildlife Service，CWS）的鸟类调查数据；以及多位独立研究者提供的相关数据。各GPCA的修订细节可参阅《北美草地优先保护区域评估与修订》（"Assessment and Revisions of North American Grassland Priority Conservation Areas"），相关文件可下载获取。