SimUText Isle Royale graded questions
pdf
School
University of Illinois, Urbana Champaign *
*We aren’t endorsed by this school
Course
219
Subject
Geography
Date
Dec 6, 2023
Type
Pages
3
Uploaded by danie459
Q6.1.
What
is
the
carrying
capacity
for
moose
in
the
simulation
model
of
Isle
Royale,
prior
to
any
changes
in
the
climate?
597
moose
-
Answer
submission
not
allowed.
is
300.
Currently
there
are
300
moose
present.
The
environment
is
stable
and
free
of
wolves.
One
day,
200
additional
moose
arrive
on the
island.
What
is
the
expected
number
of
moose
on
the
island
30
years
later,
assuming
conditions
do
not
change?
300
moose
-
Answer
submission
not
allowed.
Q6.3.
Imagine
two
new
volcanic
islands
spring
up
in
the
middle
of
the
ocean.
Each
island
is
quickly
founded
by
a
few
individuals
of
a
species
of
aquatic
bird
that
requires
an
abundance
of
fresh
water
to
thrive.
The two
islands
differ
in
rainfall,
one
much
wetter
and
one
much
drier.
Given
that
bird
carrying capacity
is
determined
by
the
amount
of
rainfall,
and
assuming
that
rainfall
is
consistent
over
time,
what
might
the
growth
curves
for
the
bird
populations
look
like
over
many
years?
o
Drier
Wetter
N
Wetter
N
Drier
Time
Time
Drier
Wetter
N
Wetter
N
Drier
Time
Time
-
Answer
submission
not
allowed.
Q6.4.
The
graphs
below
depict
hypothesized
population
dynamics
(population
size,
N,
vs.
time)
for
a
predator-prey
system.
Based
on
what
you've
learned
in
this
tutorial
by
investigating
moose
and wolf
population
cycles,
which graph
best
represents
a
predator-prey
system,
and
which
curve
(blue
or
red)
describes
dynamics
for
the
predator
species?
RARR
AN
Time
Time
O
The
graph
on
the
left
is
the
best
representation,
and
the
predator's
curve
is
blue.
The
graph
on
the
left
is
the
best
representation,
and
the
predator's
curve
is
red.
The
graph
on
the
right
is
the
best
representation,
and
the
predator's
curve
is
blue.
The
graph
on
the
right
is
the
best
representation,
and
the
predator's
curve
is
red.
-
Answer
submission
not
allowed.
Q6.5.
What
does
the
carrying
capacity
for
moose
on
the
island
primarily
depend
on?
The
number
of
moose
O
The
rate
of
plant
growth
The
number
of
wolves
The
growth
rate
of
the
wolf
population
-
Answer
submission
not
allowed.
Q6.6.
How
does
the
average
fat
stores
for
moose
when
there
are
no
wolves
on
Isle
Royale
compare
to
average
fat
stores
when
there
are
many
wolves?
Average
fat
stores
tends
to
be
lower
when
there
are
many
wolves.
O
Average
fat
stores
tends
to
be
higher
when
there
are
many
wolves.
Average
fat
stores
is
not
related
to
wolf
presence.
Average
fat
stores
depends
on
how
many
wolves
were
initially
introduced.
-
Answer
submission
not
allowed.
Use
the
following
passage
to
answer
the
next
three
questions.
A
few
individuals
of
a
bird
species
fly
to
a
small
city
that
previously
had
no
individuals
of
this
species.
The
immigrant
birds
find
that
the
city
has
adequate
food
and
no
predators.
On
average,
each
bird
has
four
offspring
per
year
and
lives
for
two
years.
Q6.7.
How
will
the
population
of
birds
change
over
the
first
few
years?
The
population
will
grow
steadily,
gaining
a
constant
number
of
birds
each
year.
O
The
population
will
grow
more
and
more
rapidly
with
each
passing
year.
The
population
will
grow
steadily
for
a
few
years
and
then
shrink
steadily
back
to
zero.
The
population's
growth
in
the
first
few years
will
depend
on
the
size
of
the
city.
-
Answer
submission
not
allowed.
Q6.8.
Imagine
that
after
the
birds
have
been
living
in
the
city
for
many
years
a
second
big
flock
of
birds
arrives.
How
will
the
bird
population
size
change
in
the
10
to
20
years
after
the
extra
birds
arrive?
Choose
the
graph
that
best
represents
how
the
city's
bird
population
should
change
over
time.
(Note:
there
are
still
no
predators
of
these
birds
in
the
city.)
5l—1
E
\
Time
Time
o
51—\
3
Time
Time
-
Answer
submission
not
allowed.
Q6.9.
Wolves
were
hunted
to
extinction
about
a
century
ago
in
the
eastern
U.S.
and
Canada.
Recently,
wild
wolves
have
made
a
return
to
eastern
Canada.
Wolves
eat
deer
in
this
area,
which
otherwise
have
few
natural
predators.
Based
on
your
results
in
this
lab,
which
is
the
best
prediction
for
how
the
deer
population
will
be
affected
by
the
return
of
wolves?
O
Wolf
predation
will
lead
to
a
smaller
deer
population
composed
of
healthier
individuals,
because
more
resources
will
be
available
for
each surviving
deer.
Wolf
predation
will
lead
to
a
smaller
deer
population
composed
of
less
healthy
individuals,
because
deer
will
waste
time
and
energy
avoiding
wolves.
Wolf
predation
will
lead
to
a
smaller
population
of
deer
that
have
about
the
same
level
of
health
as
before,
because
wolves
will
lower
the
carrying
capacity
for
deer.
Wolf
predation
will
lead
to
a
larger
deer
population
composed
of
healthier
individuals,
because
wolves
prey
on
the
less
healthy
deer,
allowing
the
deer
population
to
thrive.
-
Answer
submission
not
allowed.
Q6.10.
Which
of
the
following
is
the
best
explanation
for
why
extinctions
are
more
likely
with
longer
growing
seasons
in
this
simulation
of
Isle
Royale?
With
more
plants
available...
moose
are
healthier
on
average
and
can
avoid
wolves,
leading
to
extinction
of
the
wolves.
larger
populations
of
moose
and
wolves
are
more
vulnerable
to
environmental
fluctuations,
increasing
the
chance
of
extinction.
there
is
not
enough
room
for
moose
to
move
around
the
island
looking
for
food,
leading
to
extinction
of
the
moose
and
then
the
wolves.
O
moose
and
then wolf
populations
grow
larger
during
cycle
peaks—with
enough
wolves,
all
moose
are
eaten,
leading
to
extinction
for
both.
-
Answer
submission
not
allowed.
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