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12th ncert : species - area relationship and importance of species richness with ecological theories
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This course includes biodiversity and conservation in simple language and in an easy way. It mainly concentrates on beginners to get them with their basics. It also aims to generate interest among the viewers on the topic and also learning with fun.

Pillai Sruthi P Kumar
Pursuing MSc (botany, Cytogenetics), Mumbai University. Youtuber#sruthipillai. Work as a Biofaculty @MtEducare (reputed institute) Mumbai

Unacademy user
Shalini mishra
7 months ago
Dear manjari ....aap apne doubts bhi clear kar sakti hai
Shalini mishra
7 months ago
Lesson bhi jarur dekhiye ...bahut hi important mcqs hai
Manjari Pandey
7 months ago
Manjari Pandey
7 months ago
thanks mam
Manjari Pandey
7 months ago
mai bahut hi week Student hu
Manjari Pandey
7 months ago
mujhe best karna h
I saw emu in bhadhohi UP
Could you be more practical on the topic of species -Area relationship?Help me to solve the problem. Let assume that from 1990 to 2017, an island country has lost 900 hectors of its forested areas. So, how to calculate the numbers of species got extinction due to the destruction of that forest ? Before the deforestation, the forested areas was 10 000 hectors.
mam from where do u get such questions ?
😊 These questions are from previous year papers...these are frequently asked questions for upsc as well as other exams😊 #examiners favourite😊
ok mam 👍
nilgiri hills tamilnadu
Right 😊
largets river is nile - 6650 kms . Nile flows through Egypt and 9 other African nationa.
Good going😊👍
  1. Pillai Sruthi P Kumar ' BSc. Botany (graduate) Graduate (Visharad) in Hindustani Classical Mu Trained Bharatnatyam Classical Dancer. A passionate speaker. . A civil service aspirant. Please do rate, review and recommend if you genuinely liked my will definitely make a difference in my life... Follow me through unacademy app for future notifications...

  2. Objective .This course will complete the remaining three chapters (12th ncert) part by part included in the portion of topic ENVIRONMENT' important for GS section of UPSC exam. The main objective is to explain the concepts as simply as possible, to clear the basics, especially focuses on beginners, and tries to generate an interest among viewers by being more creative. Source 12th ncert

  3. Target audience UPSC aspirants .SSC .CDS Railway etc.


  5. Alexander von Humboldt (1769-1859) V The most famous German of his time, was celebrated as a geographer explorer, and naturalist He was less well known for his valuable contributions to the development of the social sciences. Observations Species richness increases with increased explored area (but only up to a limit) The relationship between species richness with wida varieties and the area is a rectangular hyperbola

  6. Species - Area relationships The species-area relationship or species-area curve describes the relationship between the area of a habitat, or of part of a habitat, and the number of species found within that area. V The species-area relationship is usually constructed for a single type of organism, such as all vascular plants or all species of a specific trophic level within MNOSPER NGIOSPER PTERIDOPH TES MS MS

  7. The relationship bet species richness witl varieties and the a straight line. (on a logarithmic sca Log S = log C + Z log Where, S Species richness z = slope of the line (Regression Coefficie C Y- intercept S = (CA)to the power z Log S log C Z I Area

  8. According to ecologists, the value of Z lies in the range of 0.1 0.2 (irrespective of the taxonomic group or the region.) Also found that, the species area relationship among very large areas like the entire continents are much steeper. (0.6 - 1.2) Steeper slopes signifies that number of species found increases faster than the area

  9. In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in a taxonomic hierarchy. Examples of taxonomic ranks are species, genu kingdom, domain, Kingdom Phylum Class Order Family Genus Species

  10. Climax community, or climatic climax community, V Is a historic term for a biological community of plants, animals, and fungi V Which, through the process of ecological succession in the development of vegetation in an area over time, have reached a steady state. This equilibrium was thought to occur because the climax community is composed of species best adapted to average conditions in that area.

  11. CA NADA MT ND N EW FIC : EIN GLAND OR MN NY VT West ID y North East SD H1 MI RI Mid-Wst NO RTAT PACIFIC " EAST NORTH MIDDLE- AT LANTIC CT NE MOUNTAIN CENTRA L WES T NORTH CENTRAL DE CA NY INOH Co VA DC MO K.s KY TN NC Az NM OK ATLANTI OCEA N E AST- ARSOUTH SOUTH CENTRAL ATLANTA C North Dakota South Midwest Minnesota Northeast South Dakota Wisconsin Michigan lowa Nebraska Ohio Indian Illinois West Missour South

  12. Loss of biodiversity is the extinction of species (human, plant or animal) worldwide, and also the local reduction or loss of species in a certain hahitat Endangered Animais in India 1. Asian elephant 2. Tiger 3. Great indian one - horned Rhh 4. Asiatic Lion 5. Leopard 6. Snow Leopard 7. Tibetan Antelope

  13. PLANTS ANIMALS CATEGORY Critically endangered nilghiriensis (Pigmy hog) endangered Berberis Sus salvanisus Bentinckia nicobarica Ailurus fulgens (Red Panda) Antilope vulnerable CupressUS cashmeriana cervicapra(Blac k buck)