| Alaska's
Gray Wolf subspecies Canis lupus ligoni or the Archipelago
Wolf. Unique in many aspects, Archipelago Wolves tend
to be smaller than their northern cousins, averaging
about 85 lbs. for males and about 15 lbs. less for females.
These wolves also have a tendency to be darker than the
wolves in the interior and perhaps their most unique
characteristic is that many of these wolves live on islands.
Research
indicates that wolves possibly followed
migrating deer, which colonized this
region some 8,000 or 9,000 years ago.
Climatic and geographical changes in
the region have since prevented both
deer and wolves from leaving.
As
with all wolves, a pack's size and
range is dependent on a number of factors
including availability of prey. For
island wolves, the most predominant
prey species is the Sitka Blacktail
Deer. However, beaver, waterfowl, salmon
and harbor seals are also important
food sources for the wolves.
Archipelago
Wolves are also found on a narrow strip
of mainland west of the coastal mountains,
a formidable barrier which has prevented
the eastern expansion of these animals
into Interior Alaska. The mainland
range extends from Dixon Entrance north
to Yakutat. Ironically, only islands
south of Frederick Sound contain wolf
populations and islands that are inhabited
by brown bears such at Admiralty, Baranof
and Chichagof which are void of either
wolves or black bears.
Archipelago
Wolves are excellent swimmers and have
been known to swim up to 3 miles in
open oceans in order to access other
islands in search of deer and other
prey. Studies may reveal whether this
myriad of islands lie within a particular
packs range or if perhaps these voyages
are random excursions necessitated
by fluctuating prey populations.
Recently,
a great deal of research has been conducted
on the Archipelago Wolf to determine
the impacts of large scales commercial
logging in this region. The unique
biodiversity of Southeast Alaska may
be in peril if over harvesting of timber
continues here. In order to gain deeper
insight intothe secret world of the
wolves of the rain forest, researchers
must radio collar certain individuals.
This is accomplished by capturing wolves
through the use of a leg hold trap.
Trapped wolves are anesthetized to
prevent undue trauma or injury to allow
blood sampling and the taking of toenail
clippings. Clippings will later be
analyzed to determine the presence
of isotope, an elemental form of nitrogen
found in organisms, which live in seawater.
This will help researchers to determine
the extent of marine mammals in a wolf's
diet.
A
general physical exam is then given
to each animal to determine age, sex,
general health, and any apparent injuries
or evidence of parasites. The wolf
is then weighed and a radio collar
is attached which will assist the researchers
in monitoring the pack's location.
Hopefully,
by learning more about the Archipelago
Wolf, biologists, environmentalists,
loggers, and trappers may all work
together to assure that adequate tracts
of old growth rain forest remain intact
to insure the survival of these unique
and remarkable predators. |