Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/6029071 |
| 报告编号 | PNL-7647 |
| 来源ID | OSTI_ID: 6029071 |
| Sage grouse on the Yakima Training Center: A summary of studies conducted during 1989 and 1990 | |
| Eberhardt, L.E. (Pacific Northwest Lab., Richland, WA (USA)); Hofmann, L.A. (Yakima Training Center, WA (USA). Coe-Truman Technologies) | |
| 英文摘要 | A two-year study, sponsored by the U.S. Department of the Army and conducted by Pacific Northwest Laboratory, was initiated in 1989 to study sage grouse on the Yakima Training Center (YTC). The specific objectives of this study were (1) to obtain detailed information on the distribution and relative density of sage grouse on the YTC, (2) to identify movement and habitat use patterns of sage grouse on the YTC, (3) to identify crucial habitat for sage grouse on the YTC, and (4) to provide management recommendations. Sage grouse were selected for study because they are a US Fish and Wildlife Service candidate species for the threatened and endangered list in Washington, and because the YTC probably contains the largest population of sage grouse left on federally owned lands in this state. The locations of 11 sage grouse leks, or breeding grounds, were determined on the YTC during extensive spring helicopter surveys. The maximum number of sage grouse observed during ground surveys of these leks varied from 2 to 55 birds. One lek, located near Range 19, was probably used by 40 to 50% of the YTC sage grouse population. Fifteen years of counts of males on leks indicate that the YTC sage grouse population was most numerous during the early to mid 1980s. Since the mid-1980s, sage grouse numbers appear to have declined on the YTC and in other locations in Washington. Forty-six sage grouse (17 females and 29 males) were captured and fitted with radio transmitters during 1989 and 1990. Movements by these sage grouse were both erratic and large when compared with other studies. We believe that many of the atypical movements were in response to military training activities. Sage grouse appeared to seek out areas on the YTC where human disturbance was low. Recommendations are made for improving the management of grouse habitat. |
| 出版年 | 1991 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 29 ENERGY PLANNING, POLICY AND ECONOMY ; BIRDS ; HABITAT ; ENDANGERED SPECIES ; ENVIRONMENTAL POLICY ; ENVIRONMENTAL QUALITY ; LIFE SPAN ; NATURE RESERVES ; NUTRIENTS ; TERRESTRIAL ECOSYSTEMS ; US DOD ; WASHINGTON ; ANIMALS ; ECOSYSTEMS ; FEDERAL REGION X ; GOVERNMENT POLICIES ; NATIONAL ORGANIZATIONS ; NORTH AMERICA ; RESOURCES ; US ORGANIZATIONS ; USA ; VERTEBRATES 290300* -- Energy Planning & Policy-- Environment, Health, & Safety |
| URL | http://www.osti.gov/scitech/servlets/purl/6029071 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/264418 |
| 推荐引用方式 GB/T 7714 | Eberhardt, L.E. ,Hofmann, L.A. . Sage grouse on the Yakima Training Center: A summary of studies conducted during 1989 and 1990,1991. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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