relative abundance

См. также в других словарях:

• relative abundance — noun 1. A rough measure of population density, eg number of birds seen per hour, or the percentage of sample plots occupied by a species of plant (ecology) 2. See ↑abundance (physics) • • • Main Entry: ↑relate …   Useful english dictionary

• relative abundance — An estimate of actual or absolute abundance; usually stated as some kind of index; for example, as bottom trawl survey stratified mean catch per tow …   Fisheries — dictionary

• relative abundance — An estimate of actual or absolute abundance; usually stated as some kind of index; for example, as bottom trawl survey stratified mean catch per tow …   Fisheries — dictionary

• relative abundance — an index of fish population abundance used to compare fish populations from year to year. This does not measure the actual numbers of fish, but shows changes in the population over time …   Dictionary of ichthyology

• Abundance of the chemical elements — Estimated proportions of matter, dark matter and dark energy in the universe. Only the fraction of the mass and energy in the universe labeled atoms is composed of chemical elements. The abundance of a chemical element measures how relatively… …   Wikipedia

• Abundance — may refer to: * Abundance (economics), the opposite of scarcity * Abundance (ecology), the relative representation of a species in a community * Abundance (programming language), a Forth like computer programming language * Abundance, a property… …   Wikipedia

• Abundance (disambiguation) — Abundance may refer to: * Abundance (economics), the opposite of scarcity * Abundance (ecology), the relative representation of a species in a community * Abundance (programming language), a Forth like computer programming language * Abundance, a …   Wikipedia

• Abundance (ecology) — Abundance is an ecological concept referring to the relative representation of a species in a particular ecosystem. It is usually measured as the large number of individuals found per sample.Abundance is contrasted with, but typically correlates… …   Wikipedia

• Natural abundance — In chemistry, natural abundance (NA) refers to the abundance of isotopes of a chemical element as naturally found on a planet. The relative atomic mass (a weighted average) of these isotopes is the atomic weight listed for the element in the… …   Wikipedia

• relative isotopic abundance — santykinis izotopo paplitimas statusas T sritis fizika atitikmenys: angl. fractional isotopic abundance; relative isotopic abundance vok. Isotopenhäufigkeitsverhältnis, n rus. относительная распространённость изотопа, f pranc. abondance relative… …   Fizikos terminų žodynas

• abundance — noun ADJECTIVE ▪ great, rich, sheer ▪ We were amazed by the sheer abundance of food. ▪ relative ▪ high, low …   Collocations dictionary