理学 >>> 数学 信息科学与系统科学 物理学 化学 天文学 地球科学总论 大气科学 地球物理学 地理学 地质学 水文学 海洋科学 生物学 科学技术史
搜索结果: 1-15 共查到知识库 理学 Biodiversity相关记录59条 . 查询时间(0.129 秒)
The Tara Oceans expedition harkens back to 18th-century sailing voyages that explored uncharted worlds, including Darwin’s voyage aboard the HMS Beagle and the Challenger expedition that heral...
Tremendous attention has been focused on the loss of and threats to, terrestrial biodiversity. Until very recently (Norse, 1993), much less attention was devoted to marine biodiversity despite the fac...
Utilization of marine resources is the oldest impact on the ocean environment by humans: with widespread development of fisheries, it has become the major ecological impact. Humans have fished since b...
Biodiversity provides the foundation in Nature for the production of diverse chemical compounds now used to treat human disease. Biodiversity translates to genetic uniqueness, which in turn results in...
Three themes dominate this review. The first is that biodiversity is biogeography. Or, as Nelson and Ladiges (1990) put it: "Indeed, what beyond biogeography is 'biodiversity' about?" Second, watershe...
The contributions in this special issue clearly demonstrate the broad range of problems involved in the subject of marine biological diversity. One central theme, however, is the need for accurate ide...
At the Stellwagen Bank National Marine Sanctuary, protecting marine biodiversity while supporting sustainable uses is a multipronged effort involving research, education, and enforcement. Located on t...
Marine biodiversity is increasingly threatened by habitat destruction, environmental changes, and overexploitation. Preventing reductions in biodiversity and promoting sustainable resource use require...
The importance of coral reef ecosystems may be seen in their numerous ecological, aesthetic, economic, and cultural functions. Atoll and barrier reef islanders recognize that healthy reefs are essenti...
There is increasing interest in the profusion of living resources dwelling on and in the ocean floor, from scientific interest in what is there and why life is so diverse, to interest in the potential...
The Ocean Biogeographic Information System (OBIS) grew from a series of workshops funded by the Sloan Foundation to explore the feasibility and goals of a Census for Marine Life. During the workshop t...
The National Marine Fisheries Service (NMFS) is charged with sustaining and managing the nation's living marine resources. This is done in cooperation with the community at large including members of ...
The objective of the present study was to develop a model to predict lichen species richness for six test sites in the Swiss Pre-Alps following a gradient of land use intensity combining airborne re...
The classification of vegetation has been an important research subject in botany, ecology, geography, and other disciplines to map the differences in vegetation types. Classifying vegetation by rem...
An understanding of the extent to which marine populations are connected by larval dispersal is vital, both to comprehend past impacts and future prospects for sustaining biodiversity. Marine populati...

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...