Sanasto (englanti)

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Pressures resulting from human activities which bring about changes in the state of the environment.

Lifeless.

The total number of individuals of a taxon or taxa in an area, population, or community. Relative abundance refers to the total number of individuals of one taxon compared with the total number of individuals of all other taxa in an area, volume, or community. (at http://www.greenfacts.org/glossary/abc/alien-species.htm).

The accumulation of beach sediments, deposited by natural fluid flow processes.

The laying, placing, or accumulation of any specific material. The constructive process of accumulation into beds, veins, or irregular masses of any kind of loose rock material by any natural agent, such as the mechanical settling of sediment from suspension in water, the chemical precipitation of mineral matter by evaporation from solution, or the accumulation of organic material on the death of plants and animals. See also: Deposition, Sedimentation.

Oceans take up a large part of the carbon dioxide that is emitted to the atmosphere. This leads to a gradual pH reduction and a reduction in calcium carbonate content. In the long term, this can have a major impact on species composition.

Organism, tissue or process, that 1) Contains oxygen 2) Lives or occures only in the presence of oxygen. See also Anaerobic.

Border of the shores of ancient basins that alter during transgressions and regressions of the sea.

The simplest plants forming of a polyphyletic group of organisms; may be single celled (such as diatoms) or quite large (such as seaweeds). Live in salt, brackish or freshwater.