Biodiversity is main source to meet the needs of people. Biodiversity is used in human activities related to settlement, life style, social functions and economic activities. The importance of biodiversity can be presented as:
- Agriculture Product: The crops like paddy, wheat, maize, barley etc. are the main foods of people. The source of these foods is the agricultural biodiversity. In the ancient time, people brought the useful species from the forest and cultivated to produce food for them then they selected best seeds to get high yield. These processes contributed in the development of best agricultural crops, which are the sources of food for people.
- Animal Products: Animals are the source of milk, meat, eggs, labor and other raw materials. Fish is another sources of food. Birds are the beauty of nature. They can be used for food and other purposes. Dogs are pet animals. Some medicines are made by using some animals products. People can conduct animal farming to produce more production. Thus, all of the animal products are the products of biodiversity.
- Plant Products: Plants are the sources of food, flowers and raw materials are either obtained from forests or from agricultural land. Industries use leaves, barks, fruits and materials. Several species of mushrooms, medicinal herbs, fruits, vegetables and plant products are collected and marketed. Plants have the economic value in improvement of living standard of the people.
- Improvement of Breeds: Animals and plants are used for breeding to produce new varieties. It is for improving their production and quality. Wild animals, birds and other living beings are valuable source that can be used for breeding. This breeding can help to improve the quality of the established domesticates. Within domesticates they can be crossed to generate new varieties in the world. These improved varieties/ hybrids produce high yield of excellent quality.
- Conservation of Soil: Land is one of the important natural resources. Soil erosion deteriorates the quality of land. Vegetation is the basic ground that protects the land. The vegetation and plants conserve moisture of the land. Their roots contribute to keep together the particles of soil.
- Conservation of Watershed: The vegetation and plants contribute in the conservation of sources of water. Plants absorb water and helps to remain in soil. The plants also speed down the evaporation process. Thus, there is close relationship among the biodiversity, water sources and watershed.
- Natural Scene: Nature is full of biodiversity. The plants and animals in the nature have their own habitat and life styles. There is diversity of plants and animals withe the diversity of geographical structure. The diversity of plants and animals keep the beauty of the nature. Thus, biodiversity has contributed to make a most valuable natural scene.