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प्रश्न
What parameters are used for tiger census in our country’s national parks and sanctuaries?
पर्याय
Pug marks only
Pug marks and faecal pellets
Faecal pellets only
Actual head counts
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उत्तर
Pug marks and faecal pellets
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संबंधित प्रश्न
(a) Name the two growth models that represent population growth and draw the respective growth curves they represent.
(b) State the basics for the difference in the shape of these curves
(c) Which one of the curves represents the human population growth at present? Do you think such a curve is sustainable? Give reason in support of your answer.
Represent diagrammatically three kinds of age-pyramids for human populations.
List the attributes that populations but not individuals possess.
What is an age-pyramid?
Define the carrying capacity.
What is reproductive fitness? Explain it with the help of an example.
Answer the following question.
"The size of a population for any species is not a static parameter." Justify the statement with specific reference to fluctuations in the population density of a region in a given period of time.
The phenomenal and rapid increase of population in a short period is called ______.
Age distribution in a population can influence
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Bacteria
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Deer
Label the three tiers 1, 2, 3 given in the above age pyramid.
List any four characters that are employed in human population census.
Comment on the following figures: 1, 2 and 3:
A, B, C. D, G, P, Q, R, S are species
What would be the best method to measure the total population density of a dense bacterial culture in a petridish and why?
Identify the type of pyramid given above. Write the identifying feature on the basis of which you identified it.
With the help of neatly labelled diagrams, explain the different types of age pyramids of human population.
The number of lily plants in a pond was found to be 50. After one year, the number. increased to 65. Calculate the natality of lily plants.
