Pennsylvania Game News - April 2021 - 3

The Bottleneck
Black bears employ hibernation to escape winter's bottleneck. They
are one of the largest mammaIs to use this amazing adaptation to
elude this cold, barren time. Many are shaking off their big sleep now.

M

APRIL 2021	

tend to make choices in terms of
calories per hour. But the desperation
for food many people think bears go
through in the spring actually is worse
in the fall. They're moving around
like crazy to find food, if they're not
on it. Some might travel 50 miles or
more to find what they need.
" They have to build up a lot of fat
to hibernate for months, that's why
adult bears are often eating 20,000
calories or more a day in the fall. If
they can't find those 20,000 calories,
that's what really drives nuisance
problems at that time. "
Working a fall cornfield, a bear can
put on two pounds a day. And by the
time they're ready to hibernate, bears
have several inches of fat. Some
of those " grossly obese " 500-pluspound males, Alt suggested, " could
live a long, long time on that fat! "
The black bear's approach to
surviving winter is unique, noted new
Game Commission bear biologist
Emily Carrollo.
" Bears increase their body weight
20 to 30 percent in summer and fall
to make up for that same weight
loss during winter and early spring, "
Carrollo said. " Packing on that
3

Mark Manderson - Shutterstock

OST PENNSYLVANIA
black bears start stirring
from hibernation in early
March and have left their dens by the
first week of April. But for a species
that heads into hibernation as a
response to declining supplies of fall
foods, they sure pick an inauspicious
time to exit their big sleep.
The late March and early April
landscape doesn't offer a bear much,
maybe emerging vegetation, like
skunk cabbage, leftover fall mast,
grasses and forbs, and road-killed
animals, which appear less frequently
along roadways nowadays with so
many Pennsylvanians working from
home. It's almost like the timing is a
cruel joke for behemoth male bears,
yearlings on their own and females
with last year's cubs still in tow.
That is, until you understand how
bears prepare for both winter and spring.
Bears head into hibernation when
it costs more calories to find food
than the food is worth, according
to retired Game Commission bear
biologist Gary Alt.
" Humans making a living tend to
think in terms of dollars per hour, " Alt
explained. " Bears, on the other hand,



Pennsylvania Game News - April 2021

Table of Contents for the Digital Edition of Pennsylvania Game News - April 2021

Contents
Pennsylvania Game News - April 2021 - Intro
Pennsylvania Game News - April 2021 - Cover1
Pennsylvania Game News - April 2021 - Cover2
Pennsylvania Game News - April 2021 - Contents
Pennsylvania Game News - April 2021 - 2
Pennsylvania Game News - April 2021 - 3
Pennsylvania Game News - April 2021 - 4
Pennsylvania Game News - April 2021 - 5
Pennsylvania Game News - April 2021 - 6
Pennsylvania Game News - April 2021 - 7
Pennsylvania Game News - April 2021 - 8
Pennsylvania Game News - April 2021 - 9
Pennsylvania Game News - April 2021 - 10
Pennsylvania Game News - April 2021 - 11
Pennsylvania Game News - April 2021 - 12
Pennsylvania Game News - April 2021 - 13
Pennsylvania Game News - April 2021 - 14
Pennsylvania Game News - April 2021 - 15
Pennsylvania Game News - April 2021 - 16
Pennsylvania Game News - April 2021 - 17
Pennsylvania Game News - April 2021 - 18
Pennsylvania Game News - April 2021 - 19
Pennsylvania Game News - April 2021 - 20
Pennsylvania Game News - April 2021 - 21
Pennsylvania Game News - April 2021 - 22
Pennsylvania Game News - April 2021 - 23
Pennsylvania Game News - April 2021 - 24
Pennsylvania Game News - April 2021 - 25
Pennsylvania Game News - April 2021 - 26
Pennsylvania Game News - April 2021 - 27
Pennsylvania Game News - April 2021 - 28
Pennsylvania Game News - April 2021 - 29
Pennsylvania Game News - April 2021 - 30
Pennsylvania Game News - April 2021 - 31
Pennsylvania Game News - April 2021 - 32
Pennsylvania Game News - April 2021 - 33
Pennsylvania Game News - April 2021 - 34
Pennsylvania Game News - April 2021 - 35
Pennsylvania Game News - April 2021 - 36
Pennsylvania Game News - April 2021 - 37
Pennsylvania Game News - April 2021 - 38
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Pennsylvania Game News - April 2021 - 40
Pennsylvania Game News - April 2021 - 41
Pennsylvania Game News - April 2021 - 42
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Pennsylvania Game News - April 2021 - 53
Pennsylvania Game News - April 2021 - 54
Pennsylvania Game News - April 2021 - 55
Pennsylvania Game News - April 2021 - 56
Pennsylvania Game News - April 2021 - 57
Pennsylvania Game News - April 2021 - 58
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Pennsylvania Game News - April 2021 - 60
Pennsylvania Game News - April 2021 - 61
Pennsylvania Game News - April 2021 - 62
Pennsylvania Game News - April 2021 - 63
Pennsylvania Game News - April 2021 - 64
Pennsylvania Game News - April 2021 - Cover3
Pennsylvania Game News - April 2021 - Cover4
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