Secondary biodiversity and agriculture: definitions and threats from global change

Kikvidze, Zaal (2013) Secondary biodiversity and agriculture: definitions and threats from global change. Abstracts of the International Conference on Agriculture (ICA 2013). (Unpublished)

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Primary biodiversity can be defined as the biodiversity of still remaining pristine wilderness areas of the World. Sparsely populated countries, mostly in the New World (Americas, Australia), possess vast such areas. In densely populated countries of the Old World, however, the situation is very different. Here virtually all nature is modified by past and present human activities. The biodiversity, although high in these countries (Japan, Europe), is mostly of secondary nature. The main threat to primary biodiversity is human impacts; contrariwise, the main threat to secondary biodiversity appears to be abandonment of farms and ceasing land management – mostly demography-driven factors that affect both local agriculture and natural processes. Many developing countries, typically members of ASEAN, possess vast areas with primary biodiversity as well as large agricultural areas with valuable secondary biodiversity. Preserving primary biodiversity in Mega-diversity countries is a clear priority; however, intensification of lowland agriculture and abandonment of subsistence farms in highlands, depopulation of rural areas due to migrations to industrial and commercial centers can lead to major land use changes and threaten traditional man-made landscapes with high conservation value. Consequently, the threats to secondary biodiversity in developing countries must not be overlooked.

Item Type: Article
Subjects: Q Science > Ecology
S Agriculture > S Agriculture (General)
S Agriculture > SD Forestry
Depositing User: Prof. Zaal Kikvidze
Date Deposited: 22 Jan 2014 07:10
Last Modified: 22 Jan 2014 07:10

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