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Ecology

Contributors in Ecology

Ecology

Annuals

Biology; Ecology

Pioneer plants which grow, flourish, and die in one season. Their seeds often germinate during the following wet season. See Perennials.

Phosphorus cycle

Biology; Ecology

Cyclic movement of phosphorus from environment to organism and back, starting with phosphate rock dissolved by water into plant roots.

Levee

Biology; Ecology

An embankment that works as a dike. Levees built to containn floods can actually accelerate floodwaters by narrowing natural channels.

Orthographic uplift

Biology; Ecology

The rise of air masses bumping into a mountain range. Often results in rain on the windward side and a dry rain shadow on the lee side.

Out of Africa

Biology; Ecology

The commonly accepted evolutionary hypothesis that all humans emigrated from Africa, a continent that hosted several hominid species.

Igneous

Biology; Ecology

A rock congealed from molten material beneath (intrusive) or at (extrusive) the Earth's surface. Granite is an intrusive igneous rock.

Food web

Biology; Ecology

The interconnection of all food chains in an ecosystem. Food web diagrams emphasise the circular complexity of feeding relationships.

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