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प्रश्न
Which one of the following is not a major characteristic feature of biodiversity hot spots?
विकल्प
Large number of species
Abundance of endemic species
Mostly located in the tropics
Mostly located in the polar regions
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उत्तर
Mostly located in the polar regions
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संबंधित प्रश्न
The following graph shows the species-area relationship. Answer the following questions as directed.
(a) Name the naturalist who studied the kind of relationship shown in the graph. Write the observations made by him.
(b) Write the situations as discovered by the ecologists when the value of ‘Z’
(Slope of the line) lies between:
- 0.1 and 0.2
- 0.6 and 1.2
What does ‘Z’ stand for?
(c) When would the slope of the line ‘b’ become steeper?
Latitudinal and altitudinal gradient is shown by which of the following habitat(s)?
Maximum species richness is observed in 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 ____________.
All are true regarding graph showing species richness - area relationship, EXCEPT ______.
Oxygen dissociation curve for Myoglobin has the following shape:
Which of the below mentioned regions exhibit lees seasonal variations?
Which of these is true about tropical environments?
Which of these is true about tropical environments?
Which of the following countries has the highest biodiversity?
Amongst the animal groups given below, which one appears to be more vulnerable to extinction?
Is it possible that productivity and diversity of a natural community remain constant over a time period of, say one hundred years?
Is it true that there is more solar energy available in the tropics? Explain briefly.
Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?
The relation between species richness and area for a wide variety of taxa turns out to be a rectangular hyperbola. Give a brief explanation.
Lesser variation in biomass production over a period of time is called ______.
Which of the following hypothesis suggests that ecosystems are like aeroplanes where flight safety (ecosystem functioning) may or may not be compromised, depending upon which species are being lost?
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.
