农学 >>> 林学 >>> 野生动物保护与管理 >>>
搜索结果: 106-120 共查到知识库 野生动物保护与管理相关记录569条 . 查询时间(4 秒)
A modelling exercise was conducted to identify potential critical winter habitat for four ungulate species in the Robson Valley in east-central British Columbia: mule deer (Odocoileus hemionus hemionu...
Breeding birds were surveyed 1 year pre-harvest (1995) and 4 years post-harvest (1996–2001) to measure the response to partial cutting in old lodgepole pine (Pinus contorta Dougl.) forests on the Chil...
In 2002, the British Columbia Ministry of Water, Land and Air Protection radio-tagged and tracked 16 sexually mature bull trout in the Goat River to determine the river’s status as a bull trout spawn...
We measured small mammal response to several different group selection silvicultural systems that varied by opening size (0.03, 0.13, and 1.0 ha) but maintained a consistent 30% area removal. The sout...
Reliable habitat assessment methods are needed to ensure the adequate management of Marbled Murrelet (Brachyramphus marmoratus) habitat in British Columbia. In two south coastal study regions, the Sun...
The coarse-filter approach to sustaining biological diversity attempts to maintain all representative ecosystems and wildlife habitats within an ecological region or a management unit. Ideally, the ap...
Forest planners in British Columbia are being asked to consider wildlife species diversity in forest development plans. Forest ecosystem inventories currently used in British Columbia are inappropria...
Two significant changes are occurring within the forest industry in British Columbia, both of which will necessitate a greater reliance on species and habitat monitoring and inventories. First, as Bri...
The purpose of this project was to determine the winter distribution and abundance of mountain caribou (Rangifer tarandus caribou) in the Robson Valley Forest District in relation to management zones ...
Using radio telemetry from September 1994 to March 1996, we studied the winter habitat use of 15 mountain goats in the Kingcome River drainage on the south coast of British Columbia, Canada. Our objec...
为了更好地保护极度濒危的普氏原羚物种,选择非损伤性样品-粪便作为研究材料,选用10对非洲糜羚微卫星引物和10对绵羊微卫星引物作为筛选普氏原羚基因组DNA微卫星位点的引物。通过非变性聚丙烯酰胺凝胶电泳检测微卫星PCR的扩增产物,结果发现20对引物中有8对引物在普氏原羚基因组DNA中扩增出了多态性位点。通过等位基因数目和等位基因频率对这8个位点的基因杂合度、多态性信息含量、有效等位基因数进行了计算,结...
达里诺尔国家级自然保护区是中国北方干旱半干旱草原地区的重要湿地资源,已经被列为亚洲重要湿地名录。保护区是以保护珍稀鸟类及其赖以生存的生态环境-草原、湖泊、河流、沙地、林地等多样性生态系统的综合性自然保护区。该保护区是中国北方大鸨、天鹅、白枕鹤、蓑羽鹤等珍稀候鸟的重要繁殖地和迁徙集散地,特别目前所知丹顶鹤在世界上繁殖的最西界。达里诺尔自然保护区以其独特的地貌类型,美丽的自然风光,浓郁的民族风情而闻名...
大丰麋鹿群对环境的适应、利用、栖息地变化趋势及管理研究属于应用及应用基础研究。麋鹿原系我国特产珍兽、野生种群早已绝灭,幸存海外的圈养麋鹿长期经历狭窄遗传, 仍然没有解决这个种的长期保护问题。1986年林业部与世界自然保护基金会合作, 引种麋鹿到原产地江苏省大丰县半散放生活, 能否重新适应其野生故土, 完成风土再驯化是要研究的关键问题。经过1989年到1994年的研究已经取得重大成果。研究证明,麋鹿...
该研究对厦门大屿-鸡屿白鹭自然保护区的自然地理和社会经济状况以及生物和景观资源进行了较深入的科学调查,取得了翔实可靠的数据。特别是查清了白鹭及其它鸟禽的种类、数量,栖息和觅食的生境。对保护区进行10项指标评价,提出了结合厦门经济特区发展目标,用现代化手段积极开展科学研究,扩大国际影响,发动全社会的关心与共享,注意可持续发展后劲的管理原则和方针,富有特色和创新,可为经济高速发展区域的自然保护工作、人...
培育水貂、紫貂、狐狸、艾虎等珍贵毛皮动物的优良种兽,优化产品结构。提供优质裘皮,提高产品档次,提高市场竞争力。利用五年时间把公司建成国内一流、国际先进的珍贵毛皮动物良种示范基地和裘皮货源基地。

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...