This category covers how biodiversity changes across latitudes, including the equator-to-pole gradient and factors like climate and habitat diversity that shape species richness.
Biodiversity provides valuable ecosystem services including pollination, nutrient cycling, climate regulation, and water purification.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Gametes, spores, and seeds can be preserved in liquid nitrogen at −196°C by cryopreservation.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
The tropics, including the Amazon rainforest, receive greater solar energy and have experienced long evolutionary periods with relatively stable climates, resulting in high biodiversity.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Paul Ehrlich's rivet popper hypothesis explains that gradual loss of species weakens ecosystem functioning, much like removing rivets weakens an aircraft.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
The tropics have experienced a longer evolutionary history, a more stable climate, and greater solar energy availability, all of which contribute to higher biodiversity.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Direct economic benefits (such as food, fuel, fibre, and medicines) are examples of narrowly utilitarian values, whereas pollination, oxygen production, and aesthetic value are broadly utilitarian values.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Species richness is highest in tropical regions and generally decreases towards the poles.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
The ethical argument for biodiversity conservation is that every species has an intrinsic value and an equal right to live, regardless of its usefulness to humans.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Species richness is highest in the tropics and generally decreases towards the poles.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Insects constitute more than 70% of all described animal species.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Species richness is highest in tropical regions because they have experienced long evolutionary periods under relatively stable environmental conditions.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
Species richness is highest in the tropics and generally decreases towards the poles. This pattern is known as the latitudinal gradient in species diversity.
Ref: NCERT Class 12 Biology Chapter 13: Biodiversity and Conservation Patterns of Biodiversity - Latitudinal Gradients
