Patterns of biodiversity.

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now

Patterns of biodiversity.

Posted by Vikash Vishwal 7 years ago

CBSE > Class 12 > Biology

2 answers

Ashish Soni 7 years ago

Pattern indicate tha biodiversity is not uniform throughout the world It is affected by Latitudnal gradient- it demonstrate the decrease in species diversity as we move away from the equator towards the pole. Species-Area relationships= the relation between species richness and area turns out to be a rectangular hyperbola

2Thank You

Yogita Ingle 7 years ago

Latitudinal gradients: Species diversity generally decreases as we move away from the equator towards the poles. Tropics have more species than temperate or polar areas. Many hypotheses have been proposed by scientists to explain greater diversity in the tropics. They are as follows:

Speciation is generally a function of time. Temperate regions had been subjected to frequent glaciations in the past. But tropical latitudes have remained relatively undisturbed for millions of years. This allowed a long evolutionary time for species diversification in the tropics.
Tropical environments are less seasonal, relatively more constant and predictable. A constant environment promotes niche specialization, and leads to a greater species diversity.
More solar energy is available in the tropics. It contributes to higher productivity. It may have indirectly contributed to greater diversity in the tropics.

1Thank You

ANSWER