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प्रश्न
Write the inference drawn by Alexander von Humboldt after his extensive explorations of South American jungle.
उत्तर
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.
संबंधित प्रश्न
Explain, giving three reasons, why tropics show greatest levels of species diversity.
Observe the graph and select the correct option:
The 'rivet' in the rivet popper hypothesis is considered to represent the ______.
In the equation: log S = log C + Z log A , S= species richness; Z = slope of line (regression coefficient); A = area; C = Y intercept. For smaller area, the value of Z ranges from ____________.
Amongst the animal group given below, which one has the highest percentage of endangered species?
Which of these is true about tropical environments?
The pattern of biodiversity is affected by ______.
What does the term ‘Frugivorous’ mean?
Is it possible that productivity and diversity of a natural community remain constant over a time period of, say one hundred years?
When pre-reproductive and post - reproductive age group is same in structure, the population is______.
