Title: Bio-diversity and Development

AbstractBio-Diversity is often comprehended at three levels viz. eco-system diversity ( at a meta-level ) , species diversity ( at a macro-level ) and genetic diversity ( at a micro-level ). Considering the first two aspects, different measures of bio-diversity have been developed since 1944 to focus primarily on relative abundance of specimens or units within each taxon / type. In fact, none of the commonly used measures takes account of extinction of some types. On the other hand, these include types that have emerged recently.

Changes in bio-diversity ( to reveal the nature of loss in diversity) with reference to ‘ a base’    or ‘desired’  situation should be measured in terms of the distance between this situation and that prevailing currently. Of course, estimates of such changes call for adequate data.

More difficult than the data problem is the problem of delineating a ‘desired situation’ in terms of , say, a multinomial distribution that reflects the needs of development , and more so, of sustainable development. The latter takes care of a consumption pattern that, in turn, corresponds to some production pattern with its demands on different natural resources. This consumption pattern itself shows a lot of diversity at different levels and to offer an over-all  ( weighted ) pattern invites many socio-economic problems.

Modelling changes in bio-diversity, one may examine the relations between some accepted measure of bio-diversity  ( noted for different periods of time or for different regions ) on the one hand and patterns of production ( characterized by their demands on eco-system or species of flora and fauna to provide inputs on the other.