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</html>";s:4:"text";s:7088:"Biodiversity Conservation. For example, Western Ghats have greater amphibian species diversity as compared to the Eastern Ghats. Animals requiring large territories (e.g. It means, beyond the degree of their renewability, biological systems should not be exploited. Required fields are marked *, Organic Chemistry Some Basic Principles and Techniques Notes Class 11, Hydrogen Notes Class 11 Chemistry Chapter 9, Redox Reactions Class 11 Notes Chemistry Chapter 8, Biomolecules Notes Class 12 Chemistry Chapter 14, Sidgwick Powell Theory | Lewis Theory | Octet Rule, BSc Chemistry Question Papers Gauhati University. I’m Imtiaz Ahmed, the learning guide from India. Learn … The reasons for conserving biodiversity can be grouped into three categories. If humans are made to do this duty, the cost would be many billions of dollars. Every species has an intrinsic value, though it may not be of direct use to us. It helps conservation of water by retaining water and preventing runoff of rainwater. Species richness: It refers to the number of species per unit area. A biodiversity hotspot is a conservation concept … NCERT Solutions For Class 12 Biology Chapter 15: Chapter Description Biodiversity refers to the sum total of diversity that exists at all levels of biological organisation. These resources come under category like herbs, medicines, fibers, oil, wood, food, etc. Hope these notes helped you in your schools exam preparation. CBSE Class 12 - Biology - Biodiversity and Conservation - Questions and Answers(#cbsenotes)(#eduvictors) ... CBSE Class 10 - Chemistry - Assertion Reason Based Questions … It is, therefore, our moral and ethical duty not to destroy them. There are nearly 45000 species of plants and twice as many animal species. Instead, we should take care of their wellbeing so to pass the rich biological legacy to future generations. BIODIVERSITY AND CONSERVATION Although India has only 2.4 per cent of the world’s land area, its share of the global species diversity is an impressive 8.1 per cent. In other words, the biodiversity is maximum in tropical regions, moderate in temperate area and minimum in the Arctic region (latitudinal range of 23.5o N to 23.5o S). Biodiversity and its conservation are important environmental issues of international concerns as it is of critical importance for our survival and well-being on this planet. C = Y-intercept. Industrial products: Tannins, lubricants, dyes, resins, perfumes, paper, and rubber are some of the industrial products obtained from plants. Paul Ehrlich through Rivet popper hypothesis explained the effect of reduction in biodiversity. Class 12 Biology Biodiversity and Conservation – Get here the Notes for Class 12 Biodiversity and Conservation. Tropical Amazonian rain forest (South America) has the greatest biodiversity on earth. Hey Edubuzzer, welcome to the learning platform, EDUBUZZ NOTES. Biodiversity and Conservation class 12 Notes Biology in PDF are available for free download in myCBSEguide mobile app. It is diversity at the level of communities and ecosystem. Due to overexploitation by humans dodo, Steller’s sea cow and passenger pigeon have become extinct in the last 500 years. The measure of variation in genetic information contained in the organisms is Genetic diversity. We estimate that there are probably more than 100000 plant species and more than 300000 animal species yet to be discovered and described according to May’s global estimates, only 22% of the total species have been recorded so far. It is because India is one of the 12 megadiversity countries of the world. The sixth mass Extinctions in progress now. ○ High degree of endemism (species confined to that region and not found anywhere else). Students can access all major topics, subtopics and concepts on these … The biodiversity decreases as we move from low to high latitude i.e. For example, in India, ecosystem diversity is high due to the presences of a large number of ecosystems like deserts, rain forests, mangroves, coral reefs, wetlands, estuaries, and alpine meadows. On a logarithmic scale, the relationship is a straight line described by the equation. 3.Himalaya: One of the richest hotspot of biodiversity. Protection of whole natural ecosystem is emphasized in in-situ strategies, leading to biodiversity protected at all levels. As the soil is porous, the retained water downwardly and stored as underground water. All the others are prehuman times, this is anthropogenic. Class 12 Biology Maths Notes Physics Notes Chemistry Notes. Candidates who are ambitious to qualify the Class 12 with good score can check this article for Notes. Class 10 Class 12. The present-day extinction rate is 100 to 1000 times faster. India with only 2.4% of the world’s land area possesses 8.1% species diversity of the world due to varying physical conditions and species grouping. It means we save the entire forest to save the tiger. Why are sacred groves highly protected ? Genetic diversity gives the population a chance to adapt to environmental changes occurring. Solution: The variety of living forms found in … Increased variability of ecosystem processes like productivity, water use, and pest and disease cycles. Genetic diversity occurs in the differences of alleles, entire genes and chromosomal structures within a species. The two strategies for conservation of biodiversity are: in situ conservation and ex situ conservation. ii) Broad utilitarian reasons:- Biodiversity plays a major role in providing ecosystem services like :- These reasons can be grouped into three categories, viz. A few examples of exotic species are as follows: Nile perch, a large predator fish was introduced into Lake Victoria of East Africa. Exemplar Questions Class 12 is a very important resource for students preparing for the Examination. ○ Oxygen: Plants are replenishing O2 of the atmosphere due to their photosynthetic activity. Name the three important components of biodiversity. Conservation of biodiversity is protection, unlift and scientific management of biodiversity so as to maintain it at its optimum level and derive sustainable, benefits for the present as well as future strategies. However, a very large number of species that are yet to be discovered may be facing the threat of becoming extinct even before we discover them. mammals, birds) and migrating animals are badly affected, leading to population declines. Forest patches having croplands, orchards, plantations and urban settlements on their outskirts are examples of fragmented habitats. Species diversity is the product of species richness and species evenness. Biodiversity should be taken into due care so for the preservation and conservation of biodiversity we also noted to be very much aware about the habitat of the biodiversity. There are various reasons for conservation of biodiversity… Biodiversity conservation is necessary because of the following reasons: Many commercially important products such as food, fibre and wood and countless industrial products are obtained from nature. ";s:7:"keyword";s:46:"reasons for biodiversity conservation class 12";s:5:"links";s:932:"<a href="http://sljco.coding.al/o23k1sc/msi-gf63-thin-price-566a7f">Msi Gf63 Thin Price</a>,
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