11.1.1 Concept of biodiversity

. . Concept of biodiversity The term biodiversity was introduced by Walter Rosen ( ). Biodiversity is the assemblage of different life forms. Each species is adapted to live in its specific environments. The changes in climatic conditions are reflected in the distribution and pattern of biodiversity on our planet. The number of species per unit area declines as we move from tropics towards the poles. The Tundra and Taiga of northern Canada, Alaska, northern Europe and Russia possess less than species of trees. The temperate forests of the United states have - species of trees, while the tropical forests of Panama have over species of trees in a relatively small area.