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Question
How do ecologists estimate the total number of species present in the world?
Solution
Species diversity is not evenly distributed on the earth but shows an interesting pattern. Ecologists estimate the total number of species in the world based on temperature at latitudes. Biodiversity is generally the highest in the tropical region and decreases towards the poles. The important reasons for species richness in the tropical region are as follows: In tropical regions, biological species have more time to develop, and this region receives more solar energy, which leads to higher productivity. Species richness is based on the area of a region. Ecologists calculate and estimate the ratio of a species by comparing its tendency to be found in tropical and temperate regions, abundance etc. with other animals and plants.
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