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7. Time has come for a great many countries to overcome wildlife destruction.
8. Tobacco was considered a sacred plant and it as used to indicate friendship and to
conclude peace negotiations between Native Americans and whites.
Task 5. Read the text and translate it into your native language.
Habitats and Wildlife at Risk
Loss of habitat is the principal threat to the survival of endangered plants and
animals. Large areas of important natural habitat have already been lost, including 70%
of the forests in Greece, 91% of the moist forests in Sudan, and nearly 100% of the tall
grass prairie in the United States.
Population growth, agricultural expansion, the raising of cattle and other livestock,
the building of cities and roads, and pollution are among the many causes of habitat
destruction. While most countries recognize the need to protect natural habitats, few
agree on how far that protection should extend. ‘National Protected Systems’ make up
3.7% of the Earth’s land area, but the amount of land protected in each country varies
from a high of 38% in Ecuador to less than 1% in countries such as Algeria, Nicaragua
and Turkey. Both the number and size of ‘International Protection Systems’ have increased
over the years, but legal protection does not guarantee actual protection of the land.
Economic and political factors often limit the amount of enforcement possible. Even in
cases where an area itself is actually protected, activities outside its boundaries can
severely affect the land and the wildlife that inhabits it.
Information about wildlife at risk in some countries is not always available. For
instance, little is known about non-mammals in Africa and about Asian species in
general. For some countries, however, information is readily available. For example 43
(13.4%) of the 320 mammalian species in Australia, and 123 (12.8%) of the 961 bird
species in Mexico are at risk. Of the 46 different reptile species native to Puerto Rico,
15 (32.6%) are in jeopardy, and of the 29 amphibian species in Prance, 18 (62.1%) are
threatened with extinction. As information becomes available, it is clear that the
numbers of known and threatened species represent merely a fraction of those that
actually exist.