optimum population size
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Optimum population — The optimum population is the size of a population that is optimal. There are, however, various opinions on what optimal means in this usage, resulting in various end targets for it,[1] but estimations usually take ecological sustainability and… … Wikipedia
Population density — (people per km2) by country, 2006 … Wikipedia
Population bottleneck — followed by recovery or extinction A population bottleneck (or genetic bottleneck) is an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing.[1] A slightly different… … Wikipedia
Population control — is the practice of limiting population increase, usually by reducing the birth rate. The practice has sometimes been voluntary, as a response to poverty, environmental concerns, or out of religious ideology, but in some times and places it has… … Wikipedia
Population dynamics of fisheries — A fishery is an area with an associated fish or aquatic population which is harvested for its commercial or recreational value. Fisheries can be wild or farmed. Population dynamics describes the ways in which a given population grows and shrinks… … Wikipedia
size — noun 1 how big or small sth is ADJECTIVE ▪ considerable, enormous, fair, good, great, impressive, large, massive, substantial, vast … Collocations dictionary
Population — In biology a population is the collection of inter breeding organisms of a particular species; in sociology, a collection of human beings. A population shares a particular characteristic of interest, most often that of living in a given… … Wikipedia
World population — estimates from 1800 to 2100, based on UN 2004 projections (red, orange, green) and US Censu … Wikipedia
Sample size determination — is the act of choosing the number of observations to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample … Wikipedia
List of countries by past and future population — This article shows the (absolute) population of nearly all the political countries and dependencies in the world from 1950 to 2050. This one century timespan provides a broad perspective on demographic change across the globe. According to these… … Wikipedia
Sample size — The sample size of a statistical sample is the number of observations that constitute it. It is typically denoted n , a positive integer (natural number).Typically, all else being equal, a larger sample size leads to increased precision in… … Wikipedia
