- mean population size
- средний объём совокупности
English-Russian scientific dictionary. 2008.
mean population size
Смотреть что такое "mean population size" в других словарях:
Effective population size — In population genetics, the concept of effective population size N e was introduced by the American geneticist Sewall Wright, who wrote two landmark papers on it (Wright 1931, 1938). He defined it as the number of breeding individuals in an… … Wikipedia
Small population size — Populations with small population size behave differently to larger populations. Often this has various harmful consequences for the survival of that population.Demographic effectsThe influence of stochastic (random) variation in demographic… … Wikipedia
population ecology — Introduction study of the processes that affect the distribution and abundance of animal and plant populations. A population is a subset of individuals of one species that occupies a particular geographic area and, in sexually… … Universalium
population — populational, adj. populationless, adj. /pop yeuh lay sheuhn/, n. 1. the total number of persons inhabiting a country, city, or any district or area. 2. the body of inhabitants of a place: The population of the city opposes the addition of… … Universalium
size — noun 1 how big or small sth is ADJECTIVE ▪ considerable, enormous, fair, good, great, impressive, large, massive, substantial, vast … Collocations dictionary
mean biomass — the product of mean abundance (numbers) and the average weight of individual fish. The former is calculated from abundance at the beginning of the year and the annual mortality rate and the latter are derived from population size and weight at… … Dictionary of ichthyology
Mean — This article is about the statistical concept. For other uses, see Mean (disambiguation). In statistics, mean has two related meanings: the arithmetic mean (and is distinguished from the geometric mean or harmonic mean). the expected value of a… … Wikipedia
POPULATION — Methodological Uncertainties Because of the great difficulties in ascertaining human population data in general, and Jewish data in particular, especially in ancient and medieval times, a word of caution is even more necessary here than in most… … Encyclopedia of Judaism
Mean squared error — In statistics, the mean squared error (MSE) of an estimator is one of many ways to quantify the difference between values implied by a kernel density estimator and the true values of the quantity being estimated. MSE is a risk function,… … Wikipedia
Mean difference — The mean difference is a measure of statistical dispersion equal to the average absolute difference of two independent values drawn from a probability distribution. A related statistic is the relative mean difference, which is the mean difference … Wikipedia
Population history of Egypt — The land currently known as Egypt has a long and involved population history. This is partly due to its geographical location at the crossroads of several major cultural areas: the Mediterranean, the Middle East, the Sahara and East Africa. In… … Wikipedia
