Terms beginning with O

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o
Old-growth forests

Old-growth forests are ecologically mature forest and has been subjected to negligible unnatural disturbance, such as harvesting, roading, clearing; or where the effects of any such disturbance is now negligible. The definition focuses on forest in which the upper stratum or overstorey is in the late mature or over mature growth phases. (adjusted National Forest Policy Statement definition)

Over-wintering

Sheep from upland areas of Britain are regularly sent for the winter to lowland areas where feed is more available and the weather less harsh. They return to the uplands before lambing in the spring. The owner of the sheep pays the owner of the lowland farm a certain amount per sheep

Ox

Oxen, usually cattle trained to work as draught animals.