What is Biodiversity.?

Question

give some examples too plz.

Answer 1

the second Law of Nature
the law of Harmony or Equilibrium.

in Nature everbody is welcome ,but the excess of a species is considdered a plague from natures point of view ,

so when we plant a field of corn ,as far as nature is concerned this is a plague of corn ,and she sends insects `preditors or desiseas to take the offending specie down

modern farming counter acts the forces of Nature with chemicals ,which in the long run exhausts the land and destroys the health of the soil and the Environment in general.

All plants and trees have their Chemical requirements
and also their chemical wastes.THUS DIFFERENT SPECIES living together do do polute the soil with an excess of the wastes of one specie ,they rather live of each others secretions

Nature exists in harmony because of this bio diversity
different species of plants ,which in turn attract different species of insects ,which in turn attracts different species of preditors .

there is a balance ,without an excess of anything ,almost no disease ,or plagues .

the plant growth is a cubic philosiphy with as many species packed together that can fit into a particular space,

Ground cover under plants, under bushes ,under short trees ,under tall ones ,,etc

this is the concept of Bio diversity
Natures Invention
and some ancient Agricultures as well as the Modern Permaculture ,(which is a collection of Ancient Ideas coupled to the ideas of Nature)and Agro forrestal .
promote the concept of Bio diverstity

a sustainable concept ,abundant in produce as well as free of disease ,using Natural remedies(birds and wasps killing harmfull insects) instead of chemicals to combat garden pests


PERMACULTURE
the Permaculture designers manual by Bil Mollison cost about 40 dollars.
and is the best all round book you can get.(tagiari publishing, [e-mail])

Permaculture means permanent agriculture
a concept put forward by Bill Mollisson in the 60`s
which is a complete hand book for environmental design.
for those who seek an ambiotic relationship with our planet
With practical solutions for energy systems ,infratructure ,housing,
animal shelter ,water systems and sustainable agricultural practises.
With the world and it`s history as it`s source
From the chinampas of Mexico to the teraced gardens of the Andes.
From the dessert whadis to the steppes of Russia.
Covering all climatic conditions temporal, dessert, humid and dry tropics.
with chapters on soil ,Water harvesting and land design,
Earth working ,Spirals in nature,Trees and water ,utilising energy flows,
Strategy for an alternative nation

this book also has many gardening tips,bio-gas,companion planting and ideas for structures ,how to cool down houses in hot climates ,how to warm up houses in cold climates with out using technology but rather by design.

always aiming at autosuficiency and sustainability .
this can all be found in the designers manual by Bill Mollisson,
[e-mail]

some other writers that are on the internet are
david Holmgren
Larry Santoyo
Kirk Hanson

Masanobu Fukuaka has written ,
One-Straw Revolution
The Road Back to Nature
The Natural Way of Farming
http://www.context.org/iclib/ic14/fukuok...
http://en.wikipedia.org/wiki/masanobu_fu...

Simon Henderson
and Bill Molisson.

a representitive of the concept in USA is
Dan Hemenway at [e-mail]
[e-mail]
http://barkingfrogspc.tripod.com/frames.htm
http://csf.colorado.edu/perma/ypc_catalog.htm

I am a permaculture consultant for the department of Ecology for the regional government of Guerrero in Mexico

i got a yahoo 360 which has some stuff in English as well as this spaces
http://spaces.msn.com/byderule

Answer 2

The variety shown by the living organisms is referred to as biodiversity.
Biodiversity occurs at three different levels :
1. Genetic diversity - Every person appears unique and distinctly different from all other humans.This is because each human has unique set of genes.For eg. the 'Tambdi Saal' variety of rice found all over Maharashtra can withstand drought conditions whereas other varieties of rice may die.
2. Species diversity - Every ecosystem has different kinds of species living in it. This is known as species diversity.
3. Ecosystem diversity - The variety of ecosystems possessed by a large region or the whole earth is known as ecosystem diversity.