tolerance ranges pollution, temperature changes, and the
destruction of wetlands
Limited geographic range Pandas
Long or fixed migration
routes
Salmon in the Pacific Northwest that
have been driven to extinction because of
dam construction, logging, and water
diversionLoss of habitat Red wolf, whooping crane
Low reproductive rates or
specialized reproductive
behavior
Whales, elephants, and orangutans
(female orangutans have a maximum of
three offspring during their lifetime)Move slowly Desert tortoise
No natural predators,
which makes them
vulnerable as they lack
natural defensive behaviors
and mechanisms
Dodo birds, Steller sea cows, sea ottersNot able to adapt quickly Polar bears
Possess characteristics
sought after for
commercial purposes
Sharks (fins), elephants (ivory),
rhinoceros horns (perceived aphrodisiac
quality), gorillas (meat)Require large amounts of
territory
TigersSmall numbers of the
species, which limits
genetic diversity
TigersSpecialized feeding
behaviors and/or diet
PandasSpread of disease by
humans or livestock
African wild dog (susceptible to the
spread of disease by livestock)Superstitions Aye ayes—people native to Madagascar