Biodiversity and conservation class 12 notes

Introduction Before we can talk about biodiversity and its conservation, it would be right to understand the concept of biodiversity and what it entails. Biodiversity refers to the various species of life forms on earth. Also, we can see that it includes their ecosystem, genes, and much more. Therefore, learning about biodiversity will teach how these species live, eat, interact, and more. So, the topic of conservation of biodiversity comes in when people engage in actions that lead to diversity loss. Biodiversity loss happens when actions occur that could lead to the death or extinction of some species. Illegal hunting of wildlife species and pollution are some actions that cause biodiversity loss. So, since the cause of biodiversity loss has been established, it would only be right to also talk about biodiversity conservation. Therefore, giving rise to the essence of this article. We will highlight some ways to engage in biodiversity and its conservation below. Ways to Conserve Biodiversity Some ways to conserve biodiversity are: • Governmental Regulations Every region has its government and authorities in charge of ensuring that things are done properly. So, it would only be right if the governments of various areas put laws in place that guide against actions that will affect the ecosystem or anything biodiversity-related. For example, the government of a region can enforce laws against deforestation or illegal wildlife hunting. Once these laws are enforced, people wil...

Class 12 Biology Chapter 15 Biodiversity And Conservation Notes: Access comprehensive notes for Class 12 Biology Chapter 15 on Biodiversity and Conservation. Explore the importance of biodiversity, its threats, and conservation strategies with detailed explanations, examples, and key concepts to deepen your understanding of this crucial field. Class 12 Biology Chapter 15 Biodiversity And Conservation Notes Biodiversity: Biodiversity or biological diversity is the occurrence of different types of ecosystems, different species of organisms and their variant like biotypes, ecotypes and gene adapted to different climates and environments of different regions including their interactions and processes. This term was coined by Edward Wilson. The vast array of species of micro-organisms, algae, fungi, plants and animals occurring on the earth either in the terrestrial or aquatic habitats and the ecological complexes of which they are a part comprises biodiversity. Diversity ranges from macromolecules to biomes. The important diversity at the levels of biological organization are: • Genetic Diversity: A single species might show high diversity at the genetic level over its distributional range. Rauwolfia vomitoria shows genetic variation in terms of concentration and potency of chemical reserpine India has more than 50,000 genetically different strains of rice and 1000 varieties of mango. • Species Diversity: diversity at species level for example, the Western Ghats have more amph...

LEVELS OF BIODIVERSITY 1. Genetic diversity: Diversity shown by a single species at genetic level. E.g. Rauwolfia vomitoria ( Himalaya) shows genetic variation in the potency& concentration of the chemical reserpine. India has more than 50,000 different strains of rice and 1000 varieties of mango. 2. Species diversity: Diversity at species level. E.g. Western Ghats have greater amphibian species than Eastern Ghats. 3. Ecological diversity: Diversity at ecosystem level. E.g. In India, deserts, rain forests, mangroves, coral reefs, wet lands, estuaries& alpine meadows are seen. NUMBER OF SPECIES ON EARTH (GLOBAL SPECIES DIVERSITY) o According to IUCN (2004), more than 1.5 million species described so far. o According to Robert May’s Global estimate, about 7 million species would have on earth. (He considered the species to be discovered in the tropics. i.e. only 22% of the total species have been recorded so far). o Animals are more diverse ( above 70%) than plants including Plantae and Fungi ( 22%). o Among animals, insects are most species rich group (70%, i.e. out of every 10 animals, 7 are insects). o Number of fungi species is more than the combined total of the species of fishes, amphibians, reptiles & mammals. o India has only 2.4% of world’s land area, but has 8.1% of the species diversity. India is one of the 12 mega diversity countries of the world. Nearly 45,000 plant species and twice as many of animals have been recorded from India. o Applying May’s global estim...

MAHE (MET) Applications 2023 - Apply Now! Class 12 Biology – Biodiversity and Conservation – Get here the Notes, Question & Practice Paper of Class 12 Biology for topic Biodiversity and Conservation Notes. Candidates who are ambitious to qualify the Class 12 with good score can check this article for Notes, Question & Practice Paper. Below we provided the link to access the Notes, Important Question & Practice Paper of Class 12 Biology for topic Biodiversity and Conservation Notes. You can practice the questions and check your answers from the solutions given after question. By practicing these resources candidates definitely, get the idea of which his/her weak areas and how to prepare well for the examination. • Class: 12th • Subject: Biology • Topic: Biodiversity and Conservation • Resource: Notes, Important Question & Practice Paper Class 12 Biology Notes for Biodiversity and Conservation Candidates who are pursuing in Class 12 are advised to solve the Question Paper and revised the notes from this post. With the help of Notes, candidates can plan their Strategy for particular weaker section of the subject and study hard. So, go ahead and check the Important Question & Practice Paper for Class 12 Biology – Biodiversity and Conservation from the link given below in this article. Class 12 Biology Notes for Biodiversity and Conservation

Online Tuition-CBSE,ICSE & State Board Notes • Home • CBSE • CBSE Revision Notes • CBSE Free Video Lectures • CBSE Important Questions • CBSE Objective (MCQs) • Assertation & Reasoning Questions • CBSE Syllabus • CBSE Sample paper • CBSE Extra Sampler Paper • Question Bank • Project, Assignments & Activities • Mock Test • ICSE • ICSE Free Video Lectures • ICSE Revision Notes • Class 6 ICSE Revision Notes • CLASS 7 ICSE REVISION NOTES • CLASS 8 ICSE REVISION NOTES • CLASS 9 ICSE REVISION NOTES • CLASS 10 ICSE REVISION NOTES • ICSE Solutions • Class 6 ICSE Solutions • CLASS 7 ICSE Solutions • CLASS 8 ICSE Solutions • CLASS 9 ICSE Solutions • CLASS 10 ICSE Solutions • ICSE Important Questions • Class 6 ICSE Important Questions • CLASS 7 ICSE Important Question • CLASS 8 ICSE IMPORTANT QUESTIONS • CLASS 9 ICSE Important Questions • CLASS 10 ICSE Important Question • ICSE Objective (MCQs) • Class 6 ICSE Mcqs Question • Class 7 ICSE Mcqs Question • CLASS 8 ICSE MCQS QUESTION • CLASS 9 ICSE Mcqs Questions • CLASS 10 ICSE Mcqs Question • Assertation & Reasoning Questions • ICSE Syllabus • Project, Assignments & Activities • Mock Test • NCERT • NCERT Quick Revision Notes • Class 6th Quick Revision Notes • Class 7th Quick Revision Notes • Class 8th Quick Revision Notes • Class 9th Quick Revision Notes • Class 10th Quick Revision Notes • Class 11th Quick revision Notes • Class 12th Quick Revision Notes • NCERT Solution • Class 6th NCERT Solution • Class 7th NCERT Solution • Class 8th...

According to the CBSE Syllabus 2023-24, this chapter has been renumbered as Chapter 13. Biodiversity refers to a variety of plant and animal life on Earth. Explore in detail biodiversity and its types along with biodiversity and conservation notes at BYJU’S. The term ‘biodiversity’ was popularized by the sociobiologist Edward Wilson. Biodiversity is of three types: • Genetic diversity– It refers to the total number of genes in the genetic makeup of a species. For e.g., the genetic variation shown by Rauwolfia vomitoria (medicinal plant). • Species diversity– It represents the number of species found in an ecological community. For example – The Western ghat has a greater number of amphibian species compared to the Eastern ghats. • Ecological diversity– Greater diversity observed at the ecosystem level in a particular area with its deserts, mangroves, rain forests, etc. Patterns of Biodiversity Following are the different patterns of biodiversity Latitudinal Gradients Species diversity decreases towards the poles. There are a number of species in the tropics as compared to the temperate and polar regions. This is due to the following reasons: • The tropical regions have remained undisturbed for several years. This resulted in the diversification of species in the tropics. • The environment in the tropics is more predictable and constant. This is yet another reason for increased species diversity. • Solar energy adds to higher productivity and helps in increasing biodiversit...