Exotic orchids face extinction
Dendrobium nobile is a 'classic' exotic Indian orchid. (Photo: Bapi
Roy Choudhury)
Agricultural scientists have warned that certain species of exotic
orchids, found in northeast India, are now severely depleted due to
widespread deforestation and reckless smuggling.
A recent survey found that about seventy orchid species, out of a total
eight hundred which grow in the region consisting of seven hilly States,
are on the verge of extinction. Northeast India has been designated
a 'mega diversity' area for flora and fauna. There are approximately
1,300 orchid species growing throughout India.
Scientists and experts are now pushing the Indian government to formulate
a detailed plan for conservation of its biological wealth. "The
unique biosphere zone should be taken as a single component," said
Dr. Shankar Kumar Das.
Das, a scientist in the Indian Council of Agricultural Research (ICAR)
is one of those attempting to preserve endangered species of orchids.
"It's a matter of grave anxiety that rare species of orchid are
shrinking. Various sustainable steps need to be taken urgently,"
he said.
According to Das, the uncontrolled orchid export trade is a big problem,
though he admits that it is possible for such trade to exist without
causing severe depletion. Nevertheless, illegal smuggling continues
to pose a grave threat to endangered orchids.
Other factors affecting orchid loss include the improper use of land,
unscientific cultivation (Jhuming), deforestation, and the general exploitation
of natural resources which cause serious damage to India's wealth of
biodiversity. Experts state that northeast India has been identified
as one of 18 'hot spot' areas in the world (areas in serious distress)
in terms of the threat faced by the existing flora and fauna.
Deforestation through various means, including burning and cutting
down forest trees for timber, has been the major cause for the depletion
of Indian orchids. A large number of orchid species, which were once
abundant in Indian forests, are now at the verge of extinction. Some
have become so rare that botanical teams are unable to trace them. An
example of this is Paphiopedilum druryi, a species which was once found
in great quantities in South India's Agastaya Hills, and is now difficult
to locate.
Institutions, scientists and individuals have been working to make
things better despite formidable obstacles. The department of life sciences
at the University of Manipur, located in northeast India, has developed
a tissue culture technique to propagate approximately 1,000 rare orchid
seedlings.
The Arunachal Pradesh state government, part of what are called the
Seven Sister States of northeast India, has set up the Orchids Research
and Development Center at Tipi, a remote village. The States of Arunachal,
Manipur and Mizoram feature 500, 470, and 150 orchid species respectively.
In Arunachal Pradesh, orchids occur naturally in diverse habitats.
In the rich tropical forests of the Tipi district, clusters of beautiful
blue vanda (Vanda coerulea) adorn the trees. The Tipi Orchid Research
Center boasts over 500 species of orchids. Sessa, 15 miles from Tipi,
has an Orchid Sanctuary which abounds in a variety of species including
the white Coelogyne nitida (which grows on moss covered rocks), the
tree-borne yellow Cymbidium elegans, and Dendrobium chrysanthum, the
bright yellow flowers.
The drive from Tipi to Sessa puts a wealth of natural beauty on display.
Along the roads one can see species like Dendrobium gibsonii, with its
clusters of beautifully formed yellow flowers featuring rich maroon
centers, and Dendrobium nobile with its white and purple flowers. One
of the rarer, more endangered ground orchids found in Arunachal is the
Paphiopedilum species (the Venus or Lady's slipper orchids).
To increase public awareness about the plight of the endangered orchids,
the federal agricultural ministry is considering an international orchid
festival in Arunachal Pradesh this year.
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