Wolf interaction with other Predators
Wolves
interact with other animals of the wild in many deferent ways. Here are
some examples as well as information on each different kinds of
predators that can be seen in a wolf habitat. Some information was used
here:
Bears
Wolves
and bears can coexist peacefully and often avoid each other. However,
wolf-bear interactions can be quite violent. Grizzly bears will
sometimes dig up, kill, and eat wolf pups. As a result, wolf packs will
attempt to drive away grizzly bears that get close to the dens where
wolf pups are living. Wolves may even attack, and have been known to
kill, a grizzly bear that gets too close to the den. Wolves and grizzly
bears have been seen fighting over animal carcasses from helicopters in
Alaska. Bears will scavenge off of kills made by wolves, and they may
try to drive a wolf or a few wolves off of a kill. Wolves can be quite
aggressive towards black bears. There are records of wolves preying on
black bears, and wolves have been known to kill and eat hibernating
bears. Wolves will also attack black bear cubs when the mother bear
cannot get to them and hurry them up a tree fast enough. Black bears
will also occasionally kill wolf cubs
Lynxes
Few
interactions between lynx and wolves have been documented in North
America. Erkki Pulliainen, a researcher at the University of Helsinki,
found that wolves and lynx in Finland seem to be enemies and that they
do not share territories. In Hungary and Finland, lynx numbers tend to
increase in an area when wolf numbers in that area decrease.
Coyotes
Wolves
will often chase away (and possibly kill and eat) coyotes that venture
onto their territory. When wolves were reestablished in Yellow- stone
National Park, coyote numbers in the park decreased and coyotes
disappeared on Isle Royal about eight years after wolves reached the
island. Some studies, such as those done by coyote biologist Wendy
Arjo, suggest that coyotes often avoid wolves and choose home ranges
that lie between the ranges of wolf packs. Coyotes are also active
between the hours of 7:00 am and 11:00 am, while wolves are generally
active at night. However, some coyotes will scavenge off of wolf kills
and some will even follow a wolf pack from a distance so they can
scavenge off of the wolf kills when the wolves are some distance from
it. The two species can interbreed, though they rarely do so. However,
there is some evidence that the two species have interbred with each
other in the eastern United States. Interbreeding between the two
species is most likely to occur when wolf numbers are so low that a
lone wolf would have a great deal of trouble finding a mate of the same
species. Coyotes have also been breeding with the endangered red wolf.
Cougars
Wolves
will sometimes drive a cougar away from a kill it has made so they can
eat it themselves. A solitary cougar is often at a disadvantage when it
is involved in a fight with a wolf pack, but a cougar may injure and/or
kill wolves that try to take over a kill it has made if there are only
a few wolves present. It is rare for a wolf to kill a mature cougar,
but it has happened and wolves occasionally kill cougar cubs. Overall,
wolf-cougar interactions are rarely observed because of the rarity of
the two species, but the two generally share an animosity towards each
other, since they both prey on large game.
Wolverines
Interactions
between wolves and weasels are typically of an aggressive nature.
Wolverines (which are not as vicious as their reputation suggests they
are) are often driven away from a kill they have been feeding on by
wolves. Occasionally, the wolverine is killed. Martens, mink and
ermines are often killed by wolves, and their carcasses are usually
left uneaten. Despite this danger, weasels often scavenge off of
abandoned wolf kills.
Foxes
Foxes,
like coyotes, weasels, and bears, will scavenge off of wolf kills. Many
other species also rely somewhat on food gained from wolf kills. These
include eagles, gulls, grey jays, blue jays, stellar's jays, red
squirrels, deer mice, black-capped chickadees, boreal chickadees, and
bobcats. Wolves will sometimes raid food caches that a fox has
prepared, and wolves will also take over old fox dens. Wolves often
ignore foxes, since foxes do not compete with wolves for food as foxes
hunt much smaller animals than wolves do. However, wolves will chase
away, and possibly catch, injure and kill, a fox that was caught
feeding on its kill. Most foxes are fast and alert enough to get away
from the wolves first. Although it is rare, wolves have been known to
prey on red foxes. Arctic wolves will also prey on arctic foxes if food
is scarce.
Ravens
Ravens
are often seen flying around the territory of a wolf. Though wolves do
not try and eat ravens, (because they have feathers) but sometimes a
wolf stop and play with a raven. Ravens also sometimes feed on the dead
prey that was hunted by a wolf. But in some ways it seems that the
raven and the wolf help each other out. The raven will help circular
around dead prey, and this tells the wolves that there is food near by,
and the ravens feed off kill's that are left behind by wolves.