natural population changes

См. также в других словарях:

• 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

• 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 dynamics — is the branch of life sciences that studies short term and long term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way… …   Wikipedia

• Population ageing — or population aging (see English spelling differences) occurs when the median age of a country or region rises. This happens because of rising life expectancy or declining birth rates. Excepting 18 countries termed demographic outliers by the… …   Wikipedia

• Natural gas storage — Natural gas, like many other commodities, can be stored for an indefinite period of time in natural gas storage facilities for later consumption. Contents 1 Usage 2 Measures and definitions 3 Types 3.1 …   Wikipedia

• Population modeling — is an application of statistical models to the study of changes in populations.Models allow us to better understand how complex interactions and processes work. Modeling of dynamic interactions in nature can provide a manageable way of… …   Wikipedia

• Natural selection — For other uses, see Natural Selection (disambiguation). Part of a series on Evolutionary Biology …   Wikipedia

• POPULATION — THE JEWISH POPULATION Growth by Aliyah In 1882 the Jewish population of Ereẓ Israel numbered some 24,000, roughly 5% of the total, and about 0.3% of the world Jewish population. Since then there has been an almost continuous flow of aliyah, which …   Encyclopedia of Judaism

• Population Trends — ▪ 1999 Introduction Demography       At midyear 1998, world population stood at 5,926,000,000, according to estimates prepared by the Population Reference Bureau. This total represented an increase of 84 million over the previous year, firmly… …   Universalium

• Natural resource economics — Economics …   Wikipedia

• Population and Human Relations — ▪ 1996 Introduction DEMOGRAPHY       At midyear 1995, world population stood at 5,702,000,000, according to estimates prepared by the Population Reference Bureau. The 1995 figure was about 700 million higher than in 1987, when world population… …   Universalium