Biodiversity Hotspots The bio-geographical region of the earth, which are extremely diverse with a high proportion of endemic species are the richest and most threatened reservoirs of plant and animal life on earth. Species are under severe threat due to habitat loss or climate change. The most remarkable places on earth are also the most threatened. The hotspots area of the remaining habitat covers only 2.3 per cent of the earth’s land surface. Each hotspot faces extreme threats and has already lost at least 70 per cent of its original natural vegetation. Over 50 per cent of the world’s plant species and 42 per cent of all terrestrial vertebrate species are endemic to the 34 biodiversity hotspots. About 25 sites world-wide are recognized as biodiversity hot spots. The 34 main hot spots are:
North and Central America
Carlifornia Floristic Province
Caribbean Islands
Madrean Pine-Oak woodlands
Mesoamerica
South America
Atlantic Forest
Cerrado
Chilean Winter Rainfall – Valdivian forests
Tumbes –Choco-Magdalena
Tropical Andes
Europe and Cenetral Asia
Caucauss
Irano-Anatolian
Mediterranean Basin
Mountain of Central Asia
Africa
Cape Flristic Region
Coastal Forests of Eastern Africa
Eastern Afromontance
Guinean Forests of West Africa
Horn of Africa
Madagascar and India Ocean Islands
Maputaland –Pondoland-Albany
Succulent Karoo
Asia Pacific
East Melanesian Islands
Himalaya
Indo-Burma
Japan
Mountains of Southwest China
New Caledonia
New Zealand
Philippines
Polynesia – Micronesia
Southwest Australia
Sundaland
Wallacea
Western Ghats and Sri Lanka
The hotspots provide us with the real measure of the conservation challenge. Unless we succeed in conserving this small fraction of the plant’s land area, we will lose more than half of our natural heritage.
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