Define species richness.

Give three hypotheses for explaining why tropics show greatest levels of species richness.

The relation between species richness and area for a wide variety of taxa (angiosperm plants, birds, bats, fresh water, fishes) turns out be a

On a logarithmic scale, the relation between species richness and area is described by the following equation: logS=logC+ZLogA In the above equation 'Z' represents

Study the following statements I) The simple count of number of species in an area shows the alpha diversity II) Beta diversity means the unique species in an ecosystem in comparison to other III) The more is the species richness the more is the evenness always. In the above statements

Define species. Explain the various aspects of 'species'.

Fitness of one species is significantly lower in the presence of another species in case of

Exotic species