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Home / Agriculture / Coffee Hotspots - An Inventory of Biodiversityby Dr. Anand Titus and Geeta N. Pereira Page 1 | Page 2 | Page 3 | Page 4 BIODIVERSITY FACTS (Gabriel Melchias, 2001)
INDIA IN RELATION TO BIODIVERSITYIndia has a bio diversity of 45,000 species of flora which accounts for 15 per cent of the known world plants. Of the 15,000 species of flowering plants, 35 per cent are endemic and are located in 26 endemic centers. Among the monocotyledons, out of 588 genera occurring in the Country, 22 are strictly endemic.
The WESTERN GHATS, one of the eight HOTTEST HOT SPOTS of biodiversity, are suffering annual deforestation rate of 1.16 per cent, despite 15 per cent of their land area being protected as wild life sanctuaries. India ranks tenth in the world and fourth in Asia in plant diversity. The Indian gene centre is globally recognized as one among the twelve mega diversity regions of the world. More than 20 crop species were domesticated here. It is known to have more than 49,000 species of plants, 18,000 species of higher plants, including major and minor crop (166) and their wild relatives (326). Around 1000 wild edible plant species are widely exploited by native tribes. These include 145 species of roots and tubers, 521 of leafy vegetables/ greens, 101 of buds and flowers, 647 of fruits and 118 of seeds and nuts. In addition, nearly 9500 plant species of ethno-botanical uses have been reported from the country of which around 7500 are the ethno-medicinal importances and 3900 are multi purpose, edible species.
TABLE 4: NATIVE CLIMBERS INSIDE COFFEE FORESTS
Savithramma et al have recorded that the rate of extinction of species in India is perhaps the highest in the world. They further state that about 150 species, which were collected 100 years ago, have not been spotted in the recent past. Around 600 to 700 species listed by the Botanical Survey of India alone are on the verge of extinction at the rate of 100 species per dens; this extinction rate will be more than 1000 times the estimated normal rate of extinction. In the tropics, the destruction of forests, threatens 1, 30,000 species which live no where else.
TABLE-5. NUMBER OF RECORDED BIOTA IN INDIA. ( U. KUMAR & A.K.SHARMA, 2001)
GLOBAL BIODIVERSITY
It is a well established fact in scientific circles that tropical forests are very rich in biodiversity. More than half of the species on the earth live in moist tropical forests, which are only 7 per cent of the total land surface, Insects 80 per cent and primates 90 per cent make up most of the species. World wide, tropical rain forests house the majority of floral and faunal species. TYPES OF BIO DIVERSITY1. GENETIC DIVERSITY Refers to variation of genes within the species.
2. SPECIES DIVERSITY Refers to the variety of species within a region.
3. ECO SYSTEM DIVERSITY Consists of complex mixes of diversity between and within species. The altitude plays an important role in supporting different species of plant, animal and microbial life.
4. AGRO BIODIVERSITY Refers to the major crops grown in a particular agri zone.
Agro- biodiversity in a traditional farming system… Adopted from Altieri, 1991 and UNDP, 1995.
TABLE 6: NATIVE FRUIT TREES INSIDE COFFEE FORESTS
Scientific evidence clearly points out to the fact that biological diversity increases from temperate to tropics and from high to low latitudes. Coffee farms are characterized by heavy rainfall but the distribution of rainfall is unequal from one farm to the other because of the mountain ranges & topographical variations. Soil, climate and type of cultivation too are important in influencing the flora and fauna of the region. However, altitude and rainfall pattern are the key elements in determining the type of vegetation in any given location. A change in the edaphic, topographic, relative humidity and micro and macro climate also profoundly alters the flora of the region. In short the interplay of the above mentioned factors results in the dominance of a particular species.
Documented evidence points out to a very startling fact. The so called DEVELOPED NATIONS are home to the smallest pockets of biodiversity while the Developing nations are blessed with the maximum biodiversity resource.
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