| 词条 | Leslie Canyon National Wildlife Refuge |
| 释义 |
| name = Leslie Canyon National Wildlife Refuge | iucn_category = IV | map = USA | relief = 1 | map_caption = Map of the United States | map_width = 270 | photo = Leslie Canyon NWR.jpg | photo_caption = | photo_width = 270 | location = Cochise County, Arizona, United States | nearest_city = Douglas, Arizona | coordinates = {{coord|31.5885|N|109.51174|W|region:US-AZ|format=dms|display=inline,title}} | coords_ref = | area = {{convert|2770|acre|km2|abbr=on}} | established = 1988 | visitation_num = | visitation_year = | governing_body = U.S. Fish and Wildlife Service | website = [https://www.fws.gov/refuge/leslie_canyon/ Leslie Canyon National Wildlife Refuge] }} Leslie Canyon National Wildlife Refuge is a National Wildlife Refuge of the United States located in Arizona. The {{convert|2770|acre|km2|adj=on}} refuge was established in 1988 to protect habitat for the endangered Yaqui Chub (Gila purpurea) and Yaqui Topminnow (Poeciliopsis occidentalis sonorensis). The refuge also protects a rare velvet ash-cottonwood-black walnut gallery forest. This area is part of the basin and range geologic region, characterized by linear mountain ranges which are separated by broad, flat basins. The region was impacted by relatively recent volcanic activity, leaving volcanic plugs and cinder cones visible throughout the San Bernardino Valley. Earthquakes have further altered the region and helped allow the flow of many springs and seeps. All of these dynamic geological events have played major roles in shaping the valley, catching and storing crucial water, helping determine the variety of plants and animals present. The San Bernardino Valley once supported permanently flowing creeks, springs, and marshy wetlands. In addition, the giant sacaton grassland in the valley was once described as "a luxuriant meadow some eight or ten miles long and a mile wide." The dependable source of water and grass made the area not only invaluable to a huge diversity of fish and wildlife, but also a center of human activity for centuries. With expanding settlement beginning in the late 19th century came farming, mining, and livestock production, all of which competed for the same precious water. While the extensive wetlands here once provided historic habitat for eight different kinds of native fish, the lowering water table led to severe changes in the habitat and the eventual local extinctions of many species. References
|agency=United States Fish and Wildlife Service}}{{Protected Areas of Arizona}}{{National Wildlife Refuges of the United States}}{{CochiseCountyAZ-geo-stub}} 4 : Protected areas of Cochise County, Arizona|National Wildlife Refuges in Arizona|Protected areas established in 1988|1988 establishments in Arizona |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。