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Glossary of Terms

An assemblage of photographs, each of which shows part of a region, put together in such a way that each point in the region appears once and only once in the assemblage, and scale variation is minimised.

Biological Diversity

(Also called biodiversity) - The diversity of life, often divided into three levels: genetic (diversity within species), species (diversity among species), and ecosystem (diversity among ecosystems).

Mangrove Forest

A community of salt-tolerant trees and shrubs, with many other associated organisms, that grows on some tropical and sub-tropical coasts in a zone roughly coinciding with the intertidal zone.

Salinity Gradient

Change in salinity which can be expressed in parts per thousand per foot.

Seagrass Beds

Benthic communities, usually on shallow, sandy or muddy bottoms, dominated by grasslike marine plants.

Blowout

a depression on the land surface caused by wind erosion.

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