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Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

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Academic & Professional Books  Conservation & Biodiversity  Conservation & Biodiversity: General

Key Biodiversity Areas of the Seychelles Islands

By: Justin Gerlach
128 pages, 330 colour photos
Publisher: Backhuys
Key Biodiversity Areas of the Seychelles Islands
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  • Key Biodiversity Areas of the Seychelles Islands ISBN: 9789057822148 Paperback Oct 2008 Usually dispatched within 1 week
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About this book

The 115 Seychelles islands cover an area of over a million square kilometres in the western Indian Ocean, lying within the Madagascar region biodiversity hotspot. 6,500 species of animal, plant and fungi have been recorded from the islands, including several famous species such as the Aldabra giant tortoise Dipsochelys dussumieri and the coco-de-mer palm Lodoicea maldivica. Endemism is exceptionally high with 50-88% of different animals groups and 45% of plants being recorded only in Seychelles. A large proportion of the genera are endemic and there is one endemic family of tree, represented by the Critically Endangered jellyfish tree Medusagyne oppositifolia (Medusagynaceae) and an ancient endemic family of frogs (Sooglossidae). Many of the endemic species show remarkable adaptations to their island life, from tadpole carrying frogs to carrion feeding caddisflies.

The great significance of the biodiversity of the Seychelles islands was first recognised by Professor John Stanley Gardiner of Cambridge University. Gardiner organised and led the Percy Sladen Memorial Expedition to the Indian Ocean in 1905. The remarkable number of new species found in 1905 inspired Gardiner to organised a second expedition specifically to the Seychelles islands. These two expeditions remain the largest research effort to concentrate on the region. 100 years later the Indian Ocean Biodiversity Assessment 2000-2005 (IOBA) marked the centenary of the Gardiner expeditions by surveying the biodiversity of the Seychelles islands. This covered all 32 of the granitic islands, a range of the coral islands in the Amirantes, and Aldabra and the southern atolls. More significantly it assessed the diversity of every group of animal, plant, fungus and lichen, rather than relying on indicators. The results of this assessment are presented here as an analysis of the most important sites for biodiversity in the islands.

Several different approaches have been taken to the identification of the most important sites for conservation. These include analyses of the biologically richest areas (`biodiversity hotspots'), important areas for specific groups (Important Bird Areas and Important Plant Areas) and areas containing threatened species (Alliance for Zero Extinction sites). The concept of Key Biodiversity Areas enables all these priority setting measures to be combined and this has been used in the analysis presented here.

In defining the 48 Seychelles hotspots this assessment has three aims: drawing the attention of visitors to the islands to their exceptional biodiversity, highlighting the value of this biodiversity to island residents and determining the location of critical areas for conservation. With the exception of a small number of nature tours, visitors to the islands are rarely aware of the diversity of life around them. Similarly island residents too frequently take their surroundings for granted. This atlas will serve to draw attention to the locations that are truly exceptional and to the life forms that make them special. Conservationists require high quality biodiversity and geographical information in order to protect the most important sites. A remarkably high proportion of the land surface of Seychelles is protected but much of this has been defined on the basis of historical convenience or by the presence of a small number of species. Effective conservation requires a more reliable scientific basis that was available when these reserves were created in the 1960s and 1970s; the present analysis shows exactly where the Key Biodiversity Areas are and how these relate to existing protected areas.

Customer Reviews

By: Justin Gerlach
128 pages, 330 colour photos
Publisher: Backhuys
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