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old-growth forest

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ancient forest

Overview page. Subjects: Environmental Science.

A forest that is typically older than about 250 years with large trees, dense canopies, and great diversity of wildlife. In North America this is described as old growth forest.

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ancient woodland

Overview page. Subjects: Environmental Science — Ecology and Conservation.

Both primary and secondary woodland that originated prior to a particular date, which in Britain is often set at around 1600, as secondary woodland was rarely created by planting before...

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late forest succession

Overview page. Subjects: Environmental Science.

The stage of succession in a forest in which most of the trees are mature, for example in old growth forest. Contrast early forest succession.

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late successional reserve

Overview page. Subjects: Environmental Science.

(LSR)

North American name for an old growth forest or old clearcut that has been set aside as a wildlife habitat, in which logging is only permitted if it will help the reserve to...

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northern spotted owl

Overview page. Subjects: Environmental Science.

A threatened species of owl (Strix occidentalis caurina) which is nocturnal, feeds on small mammals and birds, and lives in old growth forests of northern California and the Pacific...

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overmature forest

Overview page. Subjects: Environmental Science.

An old growth forest in which tree growth has almost ceased, and decay and deterioration are increasing.

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secondary forest

Overview page. Subjects: Environmental Science.

A forest that grows on land after the original mature old growth forest has been harvested, or died because of fire or insect attack. Also known as second growth. Contrast primary forest.

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virgin forest

Overview page. Subjects: Environmental Science.

An area of old growth forest in its natural state, untouched by humans.

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