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On a national basis, there was a 30% loss of heather between 1950 and 1980, largely due to over-grazing by sheep and conversion to forestry.
The fish thrived in the Missouri River drainage for more than 10,000 years, but in the mid-1980s, it began a slow and steady decline as its habitat was degraded by channel modifications, over-grazing, riparian vegetation removal, and other land use practices.
In Namibia the most visible features are over-grazing, deforestation and desertification.
This is believed to be due to the naturally prevailing hyper-arid climatic conditions, and accelerated through decades of over-grazing above the ecological carrying capacity of dry desert rangelands.
He claimed that the local elite is involved in the forest degradation and the other reason is over-grazing and exploitation of natural resources by the communities due to the absence of alternative energy and livelihood options.
During the late 19th and early 20th centuries, large cattle companies grazed vast herds across multi-state regions, crowding-out local ranchers and resulting in over-grazing (for more background, see: www.
The main issue is degradation of rangelands caused by over-grazing of livestock which is also affecting the environment of the country, said Dr.
Over-grazing will produce bare ground, Weeds, and dead soil due to lack of protection from summer heat.
Fish & Wildlife Service has allowed for a Conservation Order, adopted at the recommendation of federal and state wildlife scientists, to lessen overwhelming snow goose populations that are destroying fragile, arctic tundra breeding habitat by over-grazing it.
A spokesman said: "Under-grazing and over-grazing sites, in various areas across Wales, is of serious concern to CCW and is an issue we are continually addressing.
Over-grazing results in removal of vegetation from fragile slopes and reduces their productivity.
Thinly covered Hazara lands cannot sustain nomadic over-grazing.
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