Global

Human land use has largely influenced today's environment from lowlands to many high mountain tops. The perceived all-pervasive imperative of development is likely to cause further major alterations and degradation of many high mountain ecosystems. Biodiversity loss and nature conservation are recognised issues, however, their relative importance in relation to development issues is low. It is...

The GAC (Global Area Coverage) by the NOAA-AVHRR satellites represents an excellent data set for studying global and regional patterns of variations in surface conditions driven in part by climatic variation. In this pilot study we examined whether biodiversity 'hotspots', defined from peak concentrations of neoendemics as well as geographically relict forms, differ in ecoclimatic stability from...
Although levels of biological diversity may seem to be equivalent in different areas, diversity is created and maintained by a range of different processes: overlap of habitat on gradients; a dynamic mosaic of communities; and accumulation and evolution of taxa in extremely stable areas. These different communities will respond in very different ways to disturbance. The most fragile are those...

The paper looks at conservation, sustainable use and benefit sharing. It considers the 'ecosystem approach', looks at protected areas and the restoration, rehabilitation of degraded ecosystems and recovery of species as well as management of invasive and alien species. The traditional knowledge of local and indigenous communities is considered. Options for sustainable use including sustainable...

The paper describes the goals and objectives for a programme of work on mountain biological diversity.

The planet Earth is able to sustain life because of the existence of water in liquid form on its surface. More precisely, the lifeforms on Earth have flourished because of the simultaneous availability of air, water and soil over large parts of the surface of this planet, which made the-production of biomass possible. Among these three planetary resources, the availability of water, in...

Mountains cover about 20% of continental surfaces and are the source of most of the world's major river systems. Mountains are under considerable stress from humans, and climate change would exacerbate existing conflicts between environmental and socioeconomic concerns. Paleo-environmental records indicate that past warming of climate has caused the distribution of vegetation to shift to higher...

As the highest and most dramatic features of the natural landscape, mountains have an extraordinary power to evoke the sacred. The ethereal rise of a ridge in mist, the glint of moonlight on an icy face, a flare of gold on a distant peak - such glimpses of transcendent beauty can reveal our world as a place of unimaginable mystery and splendor. In the fierce play of natural elements that swirl...

Yellow-poplar (Liriodendron tulipifera) seedlings were fumigated with a gradient of ozone to determine what effect ozone has on the species. The fumigated seedlings displayed physical symptoms of ozone injury but a large number of the individuals from the charcoal-filtered treatment showed physical symptoms of ozone when indeed no ozone was present. This is an indication that what appears to be...

Widespread climate changes in the distant past were larger and more rapid than those experienced during more recent historical times. For example, the cooling of the climate leading into the last "ice age", the peak of which occurred roughly 21,000 years ago, and the subsequent climate transition to a warmer, more modern world were punctuated by abrupt climate changes that were one-...

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