Advertisements
Advertisements
Question
Write the best method to measure the population density of a single Banyan tree in comparison to Partlzenium weeds in a forest by an ecologist. Explain and justify your answer.
Advertisements
Solution
In an area, if there are 200 carrot grass (Parthenium hysterophorus) plants but only a single huge banyan tree with a large canopy, stating that the population density of banyan is low relative to that of carrot grass amounts to underestimating the enormous role of the Banyan in that community. In such cases, the percent cover or biomass is a more meaningful measure of the population size.
APPEARS IN
RELATED QUESTIONS
How does an age pyramid for human population at given point of time helps the policy-makers in planning for future.
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
Nutrient enrichment of water body result.
Which of the following would necessarily decrease the density of a population in a given habitat?
Which one of the following organisms reproduces sexually only once in its lifetime?
Label the three tiers 1, 2, 3 given in the above age pyramid.
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?
Important attributes belonging to a population but not to an individual are:
- Birth rate and death rate
- Male and female
- Birth and death
- Sex-ratio
Select the correct option from the given options:
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.
