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a

a   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

The usual abbreviation for *year (from the Latin annus, meaning year).

Aapa mires

Aapa mires   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

*Fens, sometimes called ‘string bogs’, of circumpolar distribution, found in Fennoscandia (see Baltic Shield) and *boreal...

abaptation

abaptation   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

The process by which an organism is fitted to its environment as a consequence of the characters it inherits, which have been filtered by ...

abaxial

abaxial   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

Of a plant organ, facing away from the axis or main stem (e.g. the lower surface of leaves). Compare adaxial...

abiogenesis

abiogenesis   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015
The development of living organisms from non-living matter, as in the supposed origin of life on Earth, or in the concept of spontaneous generation which was once held to account for the ... More
abiotic

abiotic   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

Non-living; devoid of life. Compare biotic.

ablation

ablation   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015
1 Removal of snow and ice by melting and by direct alteration from the solid to the gaseous phase (sublimation). The rate of loss is controlled chiefly by air temperature, ... More
abrasion

abrasion   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

The erosive (see erosion) action that occurs when rock particles of varying sizes are dragged over or hurled against a surface. Some common agents of abrasion are the ...

abscission

abscission   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

The rejection of plant organs (e.g. of leaves in autumn). This occurs at an abscission zone, where hydrolytic (see...

absolute age

absolute age   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

The age of a geologic phenomenon measured in present Earth years, rather than its age relative to other geologic phenomena (...

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