Advertisements
Advertisements
Question
Explain, giving three reasons, why tropics show greatest levels of species diversity.
Solution
Tropics show the greatest levels of species diversity because
(i) More solar energy is available in tropics which promote higher productivity and increased biodiversity.
(ii) There is no favourable season in tropics. Continued favourable environment has helped tropical organisms to gain more niche specialisation and increased diversity.
(iii) Resource availability is higher in tropics.
APPEARS IN
RELATED QUESTIONS
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.
(i) 0.1 and 0.2
(ii) 0.6 and 1.2
What does 'Z' stand for?
(c) When would the slope of the line 'b' become steeper?
Which of the following hypothesis states: Rich species diversity leads to lesser variation in biomass production over a period of time.
The graph of species richness and area for a number of taxa like angiospermic plants, freshwater fishes, and birds is found to be ______.
Select the correct alternative for x and y.
Amongst the animal group given below, which one has the highest percentage of endangered species?
Which of these is true about tropical environments?
Which of these is true about tropical environments?
Which one of the following is not a major characteristic feature of biodiversity hot spots?
Is it true that there is more solar energy available in the tropics? Explain briefly.
For frugivorous (fruit-eating) birds and mammals in the tropical forests of different continents, the slope of the species-area relationship is found to be approximately ______.
