**Rate of natural increase** — In demographics, the rate of natural increase (RNI) is the crude birth rate minus the crude death rate of a population. If we neglect the migration, then a positive RNI number means that the population increases and a negative number means that… … Wikipedia

**instantaneous rate of natural increase** — instantaneous rate of surplus production … Dictionary of ichthyology

**natural increase** — The rate of population increase measured by subtracting mortality rate from natality rate … Dictionary of invertebrate zoology

**natural increase** — in population studies, when the birth rate is higher than the death rate … Geography glossary

**natural increase** — internal growth, rate of population growth by childbirth … English contemporary dictionary

**natural decrease** — The rate of population decrease measured by subtracting the natality rate from the mortality rate; see natural increase … Dictionary of invertebrate zoology

**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

**Birth rate** — Countries by birth rate in 2008 Not to be confused with Fertility rate. Crude birth rate is the nativity or childbirths per 1,000 people per year (in estimation review points).[1] Another word used interchangeably with birth rate is natality … Wikipedia

**instantaneous rate of surplus production** — Equal to rate of growth plus rate of recruitment less rate of natural mortality all in terms of weight and on an instantaneous basis. In a balanced or equilibrium fishery, this increment replaces what is removed by fishing, and rate of surplus… … Fisheries — dictionary

**instantaneous rate of surplus production** — Equal to rate of growth plus rate of recruitment less rate of natural mortality all in terms of weight and on an instantaneous basis. In a balanced or equilibrium fishery, this increment replaces what is removed by fishing, and rate of surplus… … Fisheries — dictionary