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Publisher: USGS | Science Center: Northern Prairie Wildlife Research Center (NPWRC, Jamestown) | Format: URL
www.npwrc.usgs.gov — Caterpillars of Pacific Northwest Forests and Woods are well represented among the total number of insects. The caterpillar is the immature stage of moths and butterflies that are abundant on certain plants at various times of the year. This booklet is a field guide with keys to the identification of caterpillars commonly found in forests and More...
Publisher: USGS | Science Center: Pacific Island Ecosystems Research Center (PIERC, Honolulu) | Format: URL
biology.usgs.gov — The geographical isolation of the Hawaiian Islands has resulted in the evolution of a highly endemic biota: approximately 80 percent of Hawaii's plants, 100 percent of its forest birds, and 67 percent of its arthropods are found nowhere else in the world. But human colonization of the Islands has severely impacted native plant and animal More...
U.S. Department of the Interior |
U.S. Geological Survey