Carrying capacity of a forest is 20 tones which increases 10 % of its biomass annually. For sustainable forestry how much trees can be harvested for timber so that it […]
Tag: CSIR NET Life Science Previous Year Questions and Solution Population Ecology
CSIR NET Life Science Previous Year Questions and Solution on Population Ecology
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CSIR NET Life Science Previous Year Questions and Solution on Ecology
When Is the Change in Population Density Greatest in Logistic Growth?
In a population growing logistically and approachingCarrying Capacity (K), the change in density (N) per unittime (dN/dt) is maximum when N equals to (1) K2 (2) K/2. (3) K (4) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Where Is the Optimum Utilization of Nutrient on a Rice Fertilizer-Yield Graph?
The effect of input of any fertilizer on rice yield is shownin graph. The optimum utilization of nutrient is atpoint? (1) a (2) b (3) c (4) d Where Is […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Where Should Sustainable Harvesting Be Done for a Logistically Growing Fish Population?
Sustainable harvesting for a fish population growing logistically is done at (1) Above carrying capacity (2) At carrying capacity (3) At half of the carrying capacity (4) At lowest level […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
When Is the Intrinsic Growth Rate Highest in Exponentially Growing Bacteria?
A bacteria growing exponentially with doubling rate of10 minutes. The intrinsic rate of growth would bemaximum when bacterial numbers are- (1) at carrying capacity (2) half of carrying capacity (3) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Which Population Size Is Best for Maximum Sustainable Harvesting of Resources?
Which is most favorable for maximum sustainable harvesting of resources? (1) Major part of population is near or around the carrying capacity (2) Population is at half of the carrying […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
When Is the Growth Rate Highest in Logistic Population Growth?
Maximum growth rate is observed in logistic equationwhen the organisms are at (1) N > K (2) N=K/2 (3) N = K (4) N < K When Is the Growth […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
At What Population Size Is the Growth Rate Maximum in Logistic Growth?
39.A population grows according to the logistic growth equation, Where, is the rate of population growth, r is the intrinsic rate of increase, N is population size and K is […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
How to Calculate Maximum Sustainable Yield for a Species with Logistic Growth
For a species having logistic growth, if K = 20,000 and r = 0.15, the maximum sustainable yield will be (1) 450 (2) 1500 (3) 3000 (4) 6000 How to […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Exponential vs. Logistic Growth: Calculating Insect Population Increase Per Unit Time
The birth rates and death rates of an insect are 0.25 and 0.05 respectively. In a habitat with a carrying capacity of 500, when the population density is 100, by […]
