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Revised scheme for B.Tech. - Punjab Technical University

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�� Energy flow in the ecosystem.<br />

�� Ecological succession.<br />

�� Food chains, food webs and ecological pyramids.<br />

PTU/BOS/ME/101/10-06-2005/BATCH-2003<br />

�� Introduction, types, characteristic features, structure and function of the following<br />

ecosystem :a.<br />

Forest ecosystem<br />

b. Grassland ecosystem<br />

c. Desert ecosystem<br />

d. Aquatic ecosystems (ponds, streams, lakes, rivers, oceans,<br />

estuaries)<br />

Unit 4 : Biodiversity and its conservation<br />

�� Introduction – Definition : genetic, species and ecosystem diversity.<br />

�� Biogeographical classification of India<br />

(6 lectures)<br />

�� Value of biodiversity : consumptive use, productive use, social, ethical, aesthetic and<br />

option values<br />

�� Biodiversity at global, National and local levels.<br />

�� India as a mega-diversity nation<br />

�� Hot-spots of biodiversity.<br />

�� Threats to biodiversity : habitat loass, poaching of wildlife, man-wildlife conflicts.<br />

�� Endangered and endemic species of India<br />

�� Conservation of biodiversity : In-situ conservation of biodiversity.

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