What is biodiversity?

The diversity of plant and animal species considered desirable and vital in a given ecosystem is biodiversity. The major components of biodiversity are species evenness and species richness. India has diverse biodiversity, with forests and trees covering 23.39 per cent of the country’s land area. Furthermore, biodiversity is the sum of all diversification found at all levels of a biological structure. In the earth’s biosphere, tremendous diversity and heterogeneity exist at all levels, from macromolecules within cells to biomes. Any loss of biodiversity is a serious threat to nature and the planet. Therefore, it is crucial to conserve biodiversity around us.

Types of biodiversity

There are several types of biodiversity:

• Genetic diversity – throughout a species’ distributional range, it is possible to see much genetic diversity in a single species. Example: The intensity and concentration of the active chemical reserpine produced by Rauwolfia vomitoria’s medicinal plant vary genetically. 

• Species diversity – refers to the diversity within a species. The Western Ghats, for example, contain a greater diversity of amphibian species than the Eastern Ghats.

• Ecological diversity – refers to the diversity of an ecosystem. India, for example, boasts additional environmental diversity with deserts, coral reefs, marshes, mangroves, estuaries, rain forests and alpine meadows than a Scandinavian country like Norway.

Conservation of Biodiversity

Biodiversity conservation is vital for many reasons. These are classified narrowly into utilitarian, broadly utilitarian, and ethical.

• Ethical Arguments: Humans coexist alongside millions of plant, animal and microbial species on this planet. Every species has inherent worth. Some of it may not be economically significant to us. However, it is our moral obligation to safeguard all species.

• Broadly Utilitarian Arguments: Biodiversity has a crucial role in many ecological functions, according to broadly utilitarian arguments. Let us use pollination as an example. It is necessary for agricultural production, and crop production is significant to us economically.

• Narrowly utilitarian arguments: Food, firewood, fibre, construction material, industrial items, and medicinally valuable goods are all provided by nature. Bioprospecting is the study of molecular, genetic, and species-level variety in search of economically valuable items.

Hotspots of Biodiversity

The term biodiversity hotspot refers to areas where exceptional concentrations of endemic species are experiencing severe habitat loss. Biodiversity hotspots are areas with many species and a high level of endemism. Norman Myers coined the term biodiversity hotspots in 1988 after noticing that the tropical forest was losing both plant species and habitat.

The International Union for Conservation of Nature (IUCN) is preparing a Red Data Book (the Red Data Book is a state document that documents rare and endangered animal, plant and fungus species, as well as some local subspecies, that occur within the state or country’s borders). 36 places on the planet have been designated as biodiversity hotspots. Even though these hotspots account for only 2.3 per cent of the earth’s land surface, they are home to more than half of the world’s plant species and 42 per cent of all terrestrial animal species. Biodiversity underlies all life on earth, and thus these hotspots are crucial. There would be no air to breathe, no food to eat, and no water to drink if species did not exist. There would be no such thing as a human society. Hotspots are crucial to human life because they are the regions on earth where the most biodiversity available is threatened.

Biodiversity Hotspots in India

There are mainly four critical biodiversity hotspots in India:

• Himalaya: This term refers to the entire Himalayan region of India (as well as that falling in Pakistan, Nepal, Tibet, Bhutan, China and Myanmar).

• Indo-Burma: It encompasses all of North-Eastern India and Myanmar, Cambodia, Thailand, Laos, Vietnam and southern China, except for Assam and the Andaman Islands.

• Sundaland: This biodiversity hotspot includes the Nicobar Islands and Indonesia, Malaysia, Brunei, Singapore and the Philippines.

• Sri Lanka and the Western Ghats: Includes the Western Ghats and Sri Lanka.

Importance of biodiversity

Biodiversity includes a variety of characteristics such as temperature, food availability, climate, seasons, species and more. Furthermore, it assists in maintaining the biodiversity hotspots population through ecological abundance and reproduction.

Conserving biodiversity is essential to maintain the balance of our terrestrial environment and ecosystem. It contributes to the food chain, adds aesthetic value to the land and provides medicinal resources, among other things.

Conclusion

Biodiversity loss and conservation are principles that form the foundation for biodiversity management. Biodiversity management is a challenging issue that necessitates the participation of a wide range of stakeholders, from government agencies to private businesses, non-governmental organisations, and volunteers. Apart from that, national and international commitment, regulation and enforcement provide an essential foundation for promoting and preserving biodiversity. Because humans utilise most biodiversity resources, it is our primary obligation to conserve, preserve and safeguard biodiversity to protect the planet. The diversity of species, the ecosystem, the environment and the long-term viability of life on earth are all crucial factors. Stringent legislative obligations must be enforced over time to prevent the illegal hunting of rare species.