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Overhunting reduced the population to about 1,000 animals by the turn of the 20th century.
It likely became extinct due to human overhunting of its prey.
Overhunting had reduced the population, and survivors occurred mainly in remote sites.
Biologists agree that overhunting is not the issue.
Biologists say the species is fully recovered, but environmentalists worry that overhunting will harm the population.
Overhunting continues throughout its summer and migratory range.
Such giants are rare in modern times, due to past overhunting preventing animals from attaining their full growth.
Overhunting made the species uncommon and even rare through most of the Sound and completely eliminated at some places.
First a look at the overhunting (poaching).
Commercial exploitation and overhunting of animals for food and other products has also caused many species to become extinct or endangered.
Threats facing the small population include overhunting of cheetah prey, habitat degradation and direct poaching.
He feels the Kitlope is probably suffering the effects of historical overhunting, both of grizzly and black bears.
However, the lucrative robe trade accelerated overhunting of the plains bison by indigenous groups and white settlers alike.
First, there was a scarcity of beaver caused by rapid overhunting by intruding trappers.
Local people still trade black caiman skins and meat today at a small scale but the species has rebounded overall from the overhunting in the past.
To date, two major explanations — human overhunting and climate change — were insufficient by themselves to account for the mega die-off.
Many, including apes, monkeys, and forest elephants, are being killed off by rampant overhunting and the commercial bushmeat trade.
Forest clearance and overhunting of local game increased the cost of operating the post, while local fur returns also became marginal.
Overhunting of the seals for oil, and overfishing of their food sources, are the established reasons for the seals' extinction.
This overhunting of Syrian elephants for ivory ultimately resulted in their extinction by around 100 BC.
Overhunting has extirpated all large predators (except coyote), including black bears, grizzly bears, lynx, and wolf.
Overhunting of the northern common cuscus may be threatening the fearful owl, although habitat loss due to logging is the primary cause of population decline.
The episode describes how disease and overhunting killed a whole family of Columbian mammoths in Toquila, Mexico.
Overhunting of animals by loggers disrupts the tropical ecosystem by removing seed dispersers, predators and competitors.
The first was rampant overhunting to procure huia skins for mounted specimens, which were in worldwide demand by museums and wealthy private collectors.