USGS ASC - Copper River Delta - Birds - 1997-2005

Waterbirds were observed during breeding season in the Copper River Delta Area of Alaska. These data include 14 unique taxa observed over a seven-year period. In 1964, an earthquake changed the wetlands of this area, uplifting them by 1.9 meters and draining large areas. Goose breeding populations have since been in decline. These data provide occurrence information at nests.

在阿拉斯加科珀河三角洲地区，研究人员对繁殖季节的涉禽进行了观察。该数据集涵盖了在长达七年期间观察到的14个独特的物种分类。1964年，一场地震改变了该区域的湿地环境，将其抬升了1.9米，并导致大面积的排水。自此，鸭类的繁殖种群数量便呈下降趋势。这些数据提供了巢穴中的物种出现信息。