Ø Natural
causes :
·
Lightning strikes
·
Fires
·
Hurricanes
·
Earthquakes
·
Ice storms
·
extinction
Ø Human
actions :
·
Construction projects highways,subdivisions,factories and
schools.
·
Agricultural practices-clearing a field,plowing
a pasture,grazing cattle and sheep in a woodlot.
·
Forestry and mining
·
Pollution.
Problems associated with habitat
destruction…
Ø Destruction
of natural vegetation leads to loss of food and food.
Ø Wetlands
are drained, destroying habitat, water, and cover.
Ø Natural
waters are damaged by pollution, which causes the death of wildlife.
Ø Air
pollution with sulfur dioxides, fluorides, and other acid gases endanger
wildlife.
Ø Animals
are killed by power vehicles on roads, railways, landing strips and
forests.
Ø Diseases
from domestic animals are sometimes spread to animal wildlife creating epidemics
that endanger large populations.
Ø The
introduction of nonnative species can destroy wildlife habitat for native
species.
Ø Pesticide
poisoning may kill some wildlife organisms and injure others.
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