Deleted Journal,
Journal Year:
2024,
Volume and Issue:
97(1), P. 29 - 52
Published: Jan. 1, 2024
AbstractUngulates
can
respond
to
changes
in
food
supply
by
altering
foraging
behavior,
digestive
function,
and
metabolism.
A
multifaceted
response
an
environmental
change
is
considered
robust.
Short
seasons
of
plant
growth
make
herbivores
sensitive
because
maintenance
production
must
be
accomplished
less
time
with
fewer
options
a
more
fragile
response.
Caribou
live
at
high
latitudes
where
short
summers
constrain
their
supply.
We
measured
the
ability
female
caribou
resist
tolerate
quality
quantity
during
winter
summer.
resisted
abundance
changing
intake
physical
activity
daily
temperature
within
each
season.
Peak
rose
134%
from
pregnancy
summer
lactation
(98
vs.
229
g
kg
Global Change Biology,
Journal Year:
2024,
Volume and Issue:
30(1)
Published: Jan. 1, 2024
Abstract
As
global
average
surface
temperature
increases,
extreme
climatic
events
such
as
heatwaves
are
becoming
more
frequent
and
intense,
which
can
drive
biodiversity
responses
rapid
population
declines
and/or
shifts
in
species
distributions
even
local
extirpations.
However,
the
impacts
of
largely
ignored
conservation
plans.
Birds
known
to
be
susceptible
heatwaves,
especially
dryland
ecosystems.
Understanding
birds
most
vulnerable
where
these
occur,
offer
a
scientific
basis
for
adaptive
management
conservation.
We
assessed
relative
vulnerability
1196
bird
using
trait‐based
approach.
Among
them,
888
estimated
(170
highly
vulnerable,
eight
extremely
vulnerable),
~91%
currently
considered
non‐threatened
by
IUCN,
suggests
that
many
will
likely
become
newly
threatened
with
intensifying
climate
change.
identified
top
three
hotspot
areas
heatwave‐vulnerable
Australia
(208
species),
Southern
Africa
(125
species)
Eastern
(99
species).
Populations
recorded
Living
Planet
Database
were
found
declining
significantly
faster
than
those
non‐vulnerable
(
p
=
.048)
after
occurred.
In
contrast,
no
significant
difference
trends
between
was
detected
when
heatwave
occurred
.34).
This
our
framework
correctly
already
impacting
species.
Our
findings
help
prioritize
ecosystems
risk
mitigation
adaptation
frequency
accelerates
coming
decades.
PLoS ONE,
Journal Year:
2024,
Volume and Issue:
19(3), P. e0300378 - e0300378
Published: March 29, 2024
Understanding
the
topographic
basis
for
microclimatic
variation
remains
fundamental
to
predicting
site
level
effects
of
warming
air
temperatures.
Quantifying
diurnal
fluctuation
and
seasonal
extremes
in
relation
topography
offers
insight
into
potential
relationship
between
conditions
changes
regional
climate.
The
present
study
investigated
an
annual
understory
temperature
regime
50
sites
distributed
across
a
topographically
diverse
area
(>12
km2)
comprised
mixed
evergreen-deciduous
woodland
vegetation
typical
California
coastal
ranges.
We
effect
tree
cover
on
site-to-site
near-surface
temperatures
using
combination
multiple
linear
regression
multivariate
techniques.
Sites
depressed
areas
(e.g.,
valley
bottoms)
exhibited
larger
variation.
Elevation
(at
10
m
resolution)
was
found
be
primary
driver
daily
variations,
addition
hillslope
position,
canopy
northness.
elevation
mean
inverted,
reflecting
large-scale
cold-air
pooling
region,
with
elevated
minimum
at
higher
elevations.
Additionally,
several
our
showed
considerable
buffering
(dampened
fluctuations)
compared
average
measured
on-site
weather
station.
Results
from
this
help
inform
efforts
extrapolate
records
large
landscapes
have
improve
ecological
understanding
fine-scale
climate
range
environments.
Deleted Journal,
Journal Year:
2024,
Volume and Issue:
97(1), P. 29 - 52
Published: Jan. 1, 2024
AbstractUngulates
can
respond
to
changes
in
food
supply
by
altering
foraging
behavior,
digestive
function,
and
metabolism.
A
multifaceted
response
an
environmental
change
is
considered
robust.
Short
seasons
of
plant
growth
make
herbivores
sensitive
because
maintenance
production
must
be
accomplished
less
time
with
fewer
options
a
more
fragile
response.
Caribou
live
at
high
latitudes
where
short
summers
constrain
their
supply.
We
measured
the
ability
female
caribou
resist
tolerate
quality
quantity
during
winter
summer.
resisted
abundance
changing
intake
physical
activity
daily
temperature
within
each
season.
Peak
rose
134%
from
pregnancy
summer
lactation
(98
vs.
229
g
kg
