net reproductive rate


Also found in: Encyclopedia.

net reproductive rate

,

NRR

A measure of whether a population is reproducing at a greater or lesser rate than needed for its replacement. It is determined by calculating the average number of surviving daughters born to the women in that population during their reproductive years. An NRR of 1 indicates that each woman in the population has one surviving daughter during her lifetime.
Mentioned in ?
References in periodicals archive ?
Total comparison of parameters including: net reproductive rate, intrinsic rate of increase, generation time and doubling time showed that the cowpea was more sensitive host in comparison with others.
Three different schedules of the distribution of mortality within a year have different consequences for the annual contribution to net reproductive rate ([R.
For a given kernel, the minimum speed c of a rightward moving wave of invasion will depend upon the net reproductive rate [R.
Soybean aphids in the K-deficient treatment exhibited significantly greater intrinsic rate of increase, finite rate of increase and net reproductive rate relative to aphids feeding on non-deficient leaves.
Age-stage, two-sex life tables of Aphidius gifuensis (Ashmead)(Hymenoptera: Braconidae) and its host Myzuspersicae (Sulzer)(Homoptera: Aphididae) with mathematical proof of the relationship between female fecundity and the net reproductive rate.
POPULATION GROWTH PARAMETERS OF STENOMA IMPRESSELLA AT CONSTANT TEMPERATURES UNDER LABORATORY CONDITIONS (75 [+ or -] 5% RH AND 12:12 H L:D) Parameter Temperature [degrees]C (Mean [+ or -] SE) ([dagger]) days Units 20 Net reproductive rate 9 /Gen 6.
However, quantitative information on life table parameters, such as intrinsic rate of increase (r), net reproductive rate ([R.