Abundance (ecology)

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 to, incidence, which is the frequency with which the species occurs at all in a sample. [] When high abundance is accompanied by low incidence, it is considered locally or sporadically abundant.

A variety of sampling methods are used to measure abundance. For larger animals, these may include spotlight counts, track counts and roadkill counts, as well as presence at monitoring stations. [cite journal |quotes= |last=Wright |first= David Hamilton|authorlink= |coauthors= |year= 1991|month=July |title= Correlations Between Incidence and Abundance are Expected by Chance|journal= Journal of Biogeography|volume= 18|issue= 4|pages= 463–466|doi= 10.2307/2845487|url= http://links.jstor.org/sici?sici=0305-0270(199107)18%3A4%3C463%3ACBIAAA%3E2.0.CO%3B2-7|accessdate= 2006-12-15]

ee also

*Living Planet Index
*Range (biology)
*Species richness

References


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • 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

  • ecology — is the scientific study of the interactions that determine the territorial distribution and abundance of organisms. The term was first used scientifically in 1869 by the German biologist Haekel in a study of plant ecology. Darwin s theory of the… …   Dictionary of sociology

  • Ecology — For other uses, see Ecology (disambiguation). Ecology …   Wikipedia

  • Ecology of the San Francisco Estuary low salinity zone — The low salinity zone (LSZ) of the San Francisco Estuary and Delta represents a highlyaltered ecosystem. The region has been heavily re engineered to accommodate the needs ofwater delivery, shipping, agriculture, and most recently, suburban… …   Wikipedia

  • ecology — ecological /ek euh loj i keuhl, ee keuh /, ecologic, adj. ecologically, adv. ecologist, n. /i kol euh jee/, n. 1. the branch of biology dealing with the relations and interactions between organisms and their environment, including other organisms …   Universalium

  • Ecology of the North Cascades — Main article: North Cascades The North Cascades are high and rugged with varied conifer species. The Ecology of the North Cascades is heavily influenced by the high elevation and rain shadow effects of the mountain range. The North Cascades is a… …   Wikipedia

  • Ecology of the Sierra Nevada — See Sierra Nevada for general information about the mountain range in the United States. The Ecology of the Sierra Nevada, located in the U.S. state of California, is diverse and complex: the plants and animals are a significant part of the… …   Wikipedia

  • abundance — a·bun·dance || É™ bÊŒndÉ™ns n. plentifulness, copiousness; richness, wealth; number of creatures of a certain species found within a given area (Ecology) …   English contemporary dictionary

  • Occupancy-abundance relationship — In macroecology, the occupancy abundance (O A) relationship is the relationship between the abundance of species and the size of their ranges within a region. This relationship is perhaps one of the most well documented relationships in… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”