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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ridgefield National Wildlife Refuge ： ウィキペディア英語版 Ridgefield National Wildlife Refuge Ridgefield National Wildlife Refuge is a wildlife preserve, one of the national wildlife refuges operated by the United States Fish and Wildlife Service, located in the westernmost part of Clark County, Washington. The refuge protects more than of marshes, grasslands, and woodlands. The refuge was established (along with 3 other refuges in the Willamette Valley of Oregon) in 1965, in response to a need to establish vital winter habitat for wintering waterfowl with an emphasis on the dusky Canada goose whose nesting areas in Alaska were severely impacted by the violent earthquake of 1964.〔 Ridgefield NWR is part of the Ridgefield National Wildlife Refuge Complex, headquartered in Ridgefield, Washington, which oversees the management of four refuges in the southwestern part of the state: Ridgefield, and three refuges in the Columbia River Gorge: Franz Lake, Pierce, and Steigerwald Lake.〔 ==Refuge units and acitivities== Preservation of the natural Columbia River floodplain is the management objective of the Carty, 2 mile (3 km) self-guided hiking trail, Roth and Ridgeport Dairy units. The River 'S', 4.2 mile (7 km) auto tour route and 1.2 mile (2 km) seasonal hiking trail, and Bachelor Island units are managed to maximize habitat for waterfowl and other wetland wildlife. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ridgefield National Wildlife Refuge」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.