Proceedings of the 9th Optima meeting (Paris, 11-17 May 1998) PDF Download
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Author: Organization for the Phyto-Taxonomic Investigation of the Mediterranean Area
Publisher: Herbarium Mediterraneum
ISBN:
Category : Science
Languages : en
Pages : 644
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Book Description
Author: Organization for the Phyto-Taxonomic Investigation of the Mediterranean Area
Publisher: Herbarium Mediterraneum
ISBN:
Category : Science
Languages : en
Pages : 644
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Book Description
Author: Laszlo Nagy
Publisher: Springer Science & Business Media
ISBN: 3642189679
Category : Science
Languages : en
Pages : 480
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Book Description
The United Nations Conference on the Environment and Development (UNCED), held in Rio de Janeiro in 1992, spawned a multitude of pro grammes aimed at assessing, managing and conserving the earth's biological diversity. One important issue addressed at the conference was the mountain environment. A specific feature of high mountains is the so-called alpine zone, i. e. the treeless regions at the uppermost reaches. Though covering only a very small proportion of the land surface, the alpine zone contains a rela tively large number of plants, animals, fungi and microbes which are specifi cally adapted to cold environments. This zone contributes fundamentally to the planet's biodiversity and provides many resources for mountain dwelling as well as lowland people. However, rapid and largely man-made changes are affecting mountain ecosystems, such as soil erosion, losses of habitat and genetic diversity, and climate change, all of which have to be addressed. As stated in the European Community Biodiversity Strategy, "the global scale of biodiversity reduction or losses and the interdependence of different species and ecosystems across national borders demands concerted international action". Managing biodiversity in a rational and sustainable way needs basic knowledge on its qualitative and quantitative aspects at local, regional and global scales. This is particularly true for mountains, which are distributed throughout the world and are indeed hot spots of biodiversity in absolute terms as well as relative to the surrounding lowlands.
Author: Stephen D. Davis
Publisher:
ISBN:
Category : Biodiversity conservation
Languages : en
Pages : 584
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Book Description
Author: World Wide Fund for Nature
Publisher: World Conservation Union
ISBN:
Category : Nature
Languages : en
Pages : 376
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Book Description
Volume 1.
Author: Stephen D. Davis
Publisher: World Conservation Union
ISBN:
Category : Nature
Languages : en
Pages : 610
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Book Description
Volume 2.
Author:
Publisher:
ISBN:
Category : Germplasm resources, Plant
Languages : en
Pages : 582
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Book Description
Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 956
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Book Description
Author:
Publisher:
ISBN:
Category : Botany
Languages : fr
Pages : 428
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Book Description
Author: Ugolino Martelli
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 802
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Book Description
Author: David Bramwell
Publisher: Cambridge University Press
ISBN: 1139497804
Category : Science
Languages : en
Pages : 539
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Book Description
Oceanic islands offer biologists unparalleled opportunities to study evolutionary processes and ecological phenomena. However, human activity threatens to alter or destroy many of these fragile ecosystems, with recent estimates suggesting that nearly half of the world's insular endemics are threatened with extinction. Bringing together researchers from around the world, this book illustrates how modern research methods and new concepts have challenged accepted theories and changed our understanding of island flora. Particular attention is given to the impact of molecular studies and the insights that they provide into topics such as colonisation, radiation, diversification and hybridisation. Examples are drawn from around the world, including the Hawaiian archipelago, Galapagos Islands, Madagascar and the Macronesian region. Conservation issues are also highlighted, with coverage of alien species and the role of ex situ conservation providing valuable information that will aid the formulation of management strategies and genetic rescue programmes.
