Ch 13 - Biodiversity and Conservation12th Biology
The Concept of Biodiversity
Who popularized the term 'Biodiversity', and what exact scope of biological organisation does it encompass?
Who popularized the term 'Biodiversity', and what exact scope of biological organisation does it encompass?
- Scientist: Popularised by the sociobiologist Edward Wilson.
- Scope: It describes the combined diversity at all levels of biological organisation, ranging from the microscopic (macromolecules within cells) to the macroscopic (entire biomes).
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Genetic Diversity: Rauwolfia vomitoria
How does the medicinal plant Rauwolfia vomitoria growing in the Himalayas explicitly demonstrate genetic diversity?
How does the medicinal plant Rauwolfia vomitoria growing in the Himalayas explicitly demonstrate genetic diversity?
- It exhibits massive genetic variation in terms of the potency and concentration of its active medicinal chemical, reserpine.
- (Context: India alone also demonstrates massive genetic diversity with over genetically different strains of rice and varieties of mango).
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Species vs. Ecological Diversity
Provide the specific geographical examples contrasting 'Species Diversity' and 'Ecological Diversity'.
Provide the specific geographical examples contrasting 'Species Diversity' and 'Ecological Diversity'.
- Species Diversity: The Western Ghats have a significantly greater amphibian species diversity than the Eastern Ghats.
- Ecological Diversity: India, with its massive variety of deserts, rainforests, mangroves, and coral reefs, has a vastly greater ecosystem diversity than a Scandinavian country like Norway.
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Also in this chapter
32 more cards to study in Prism
- 4Global Species Estimates
- 5The Prokaryotic Diversity Paradox
- 6India's Mega Diversity Status
- 7Global Taxonomic Proportions
- 8Latitudinal Gradients of Diversity
- 9Species-Area Logarithmic Equation
- 10Hypotheses for High Tropical Diversity
- 11The Z-Value (Regression Coefficient)
- 12The Species-Area Relationship
- 13David Tilman's Ecosystem Experiments
- 14The Rivet Popper Hypothesis
- 15Taxonomic Vulnerability to Extinction
- 16Utilitarian Arguments for Conservation
- 17Ecological Consequences of Biodiversity Loss
- 18Invasive Plant Species
- 19The 'Sixth Extinction'
- 20Recent Global Extinctions
- 21In-Situ Conservation Network in India
- 22The Evil Quartet: Drivers of Extinction
- 23Extinctions via Over-exploitation
- 24Amazonian Rain Forest Biodiversity Data
- 25Alien Species Invasions: Fauna and Flora
- 26Co-extinction in Mutualistic Relationships
- 27Global Biodiversity Hotspots
- 28The Concept of Endemism
- 29Rainforest Depletion & Oxygen Production
- 30IUCN Red List (2004) Extinction Data
- 31Sacred Groves in India
- 32Modern Ex-Situ Conservation Strategies
- 33Tropical vs. Temperate Flora Comparison
- 34Utilitarian Value: Drugs and Plants
- 35International Conservation Summits
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