BEAR FACTS
The Brooks River in Katmai National
Park, Alaska, is a world-famous site from which to view and photograph
brown bears catching salmon at a small waterfall. Each year from
late June until the end of July, salmon numbering in the hundreds
of thousands run into the river! Midway up the river the salmon
meet a six foot high waterfall known as Brooks Falls. As they
mass in the pools beneath it and jump the falls, the salmon are
vulnerable to bears.
The bears concentrate at the
Falls where they compete for a chance to fish. Each bear must
learn how to fit into the crowd of competing bears so that it
gets enough food to prosper. For the largest dominant bears this
process is simple. They consistently catch the most fish, more
than three times what subadults catch and as much as twice what
adult females and smaller males catch. The secret of success
is controlling the best fishing spots. The bears feast on salmon
which contains 4,600 calories, much of it in fat, the nutrient
which bears can use most efficiently.
Like humans who fish, bears use
many different methods to catch salmon. Some snorkel at the base
of the falls and try to trap salmon between their front legs
or catch a sluggish fish in their mouths. Others fish downstream,
splashing around to drive the panicky salmon into shallow water
where they are easier to catch. Sometimes a bear positions itself
at the upper edge of the falls and catches a salmon in midair
as the fish leaps up. Three or four fish may jump at once which
can confuse the bear so much that he misses all of them!!!
Brooks River is a unique place
where both bears and humans can interact peacefully. The peaceful
coexistence of these two species at such high densities is amazing
given the often desperate nature of the competition among the
bears!!
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