What is biodiversity? How many marks carried by the chapter Biodiversity and Conservation in class 12 board examinations? Why we study the chapter Biodiversity and Conservation? How important the chapter Biodiversity and Conservation? What do you mean biodiversity? What is master gradient? How you will study the species area relationship?
As we move away from the equator towards the poles , species diversity decreases. With very few exceptions, tropics (latitudinal range of 23.5° N to 23.5° S) harbour more species than temperate or polar areas. Colombia located near the equator has nearly 1,400 species of birds while New York at 41° N has 105 species and Greenland at 71° N only 56 species. India, with much of its land area in the tropical latitudes, has more than 1,200 species of birds. A forest in a tropical region like Equador has up to 10 times as many species of vascular plants as a forest of equal area in a temperate region like the Midwest of the USA.
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