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Question
Write the inference drawn by Alexander von Humboldt after his extensive explorations of South American jungle.
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Solution
Alexander von Humboldt observed that within a region species richness increased with increasing explored area, but only up to a limit. In fact, the relation between species richness and area for a wide variety of taxa (angiosperm plants, birds, bats, freshwater fishes) turns out to be a rectangular hyperbola.
RELATED QUESTIONS
Give three hypotheses for explaining why tropics show greatest levels of species richness.
Short answer type question
Tropical regions exhibit species richness as compared to polar regions. Justify.
Which of the following hypothesis states: Rich species diversity leads to lesser variation in biomass production over a period of time.
Which of these is true about tropical environments?
Amongst the animal groups given below, which one appears to be more vulnerable to extinction?
What does the term ‘Frugivorous’ mean?
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Given below is an equation describing the Species-Area relationship between species richness and area for a wide variety of taxa as angiosperm plants, birds, bats etc. S = CAz
- Give a graphical representation of the given equation showing Species-Area relationship.
- What does 'S' represent in the given equation?
- What is the value of 'Z' (regression coefficient) for frugivorous birds and mammals in the tropical forests of different continents?
Distribution of diversity on earth shows that biodiversity from higher latitudes to lower latitudes ______.
Which of the following characteristics are seen in a stable community?
- It is strong enough to withstand environmental disturbance and recovers quickly.
- It is resistant to invasive species.
- It exhibits constant change in biomass production over a period of time.
- It has more species diversity.
