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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 *

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

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

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).

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

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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