Distribution and Abundance of the Forest Birds of Guam: Results of a 1981 Survey

摘要

A cooperative survey of the forest birds of Guam was conducted in 1981 by the Division of Aquatic and Wildlife Resources, Territory of Guam, and the U.S. Fish and Wildlife Service. This survey represents the first systematic and comprehensive effort to obtain baseline data on the distribution and abundance of Guam's avifauna. The results of the 1981 survey and historical records document the advanced state of decline in avian distribution, densities, and population sizes, and are used to identify the key remaining habitats for Guam's native birds. Possible causes of the decline such as disease, introduced predators, pesticides, and habitat loss, are discussed and recommendations for future studies are made.