ecological abundance

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• Ecological selection — (or environmental selection or survival selection or individual selection or asexual selection) refers to natural selection minus sexual selection, i.e. strictly ecological processes that operate on a species inherited traits without reference to …   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

• Ecological extinction — Types and definitions of extinctions = Estes, Duggins, and Rathburn (1989) recognize three distinct types of extinction.Global extinction is defined as “the ubiquitous disappearance of a species. [Estes et al. The ecology of extinctions in kelp… …   Wikipedia

• Ecological footprint — The ecological footprint is a measure of human demand on the Earth s ecosystems. It is a standardized measure of demand for natural capital that may be contrasted with the planet s ecological capacity to regenerate.[1] It represents the amount of …   Wikipedia

• Ecological succession — Succession after disturbance: a boreal forest one (left) and two years (right) after a wildfire. Ecological succession, is the phenomenon or process by which a community progressively transforms itself until a stable community is formed. It is a… …   Wikipedia

• Ecological niche — Black smokers create ecological niches with their unusual environment In ecology, a niche (   …   Wikipedia

• Ecological network — An ecological network is a representation of the biotic interactions in an ecosystem, in which species (nodes) are connected by pairwise interactions (links). These interactions can be trophic or mutualistic. Ecological networks are used to… …   Wikipedia

• Ecological effects of biodiversity — The diversity of species and genes in ecological communities affects the functioning of these communities. These ecological effects of biodiversity in turn affect both climate change through enhanced greenhouse gases, aerosols and loss of land… …   Wikipedia

• Ecological pyramid — An interesting face(or Trophic pyramid) is a graphical representation designed to show the biomass or productivity at each trophic level in a given ecosystem. Biomass pyramids show the abundance or biomass of organisms at each trophic level,… …   Wikipedia

• Connell–Slatyer model of ecological succession — Ecological succession can be understood as a process of changing species composition within a community due to an ecological disturbance, and varies largely according to the initial disturbance prompting the succession.[1] Joseph Connell and… …   Wikipedia

• 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