Authorea (Authorea),
Journal Year:
2022,
Volume and Issue:
unknown
Published: Nov. 24, 2022
The
evolution
of
body
size,
both
within
and
between
species,
has
been
long
predicted
to
be
influenced
by
multifarious
environmental
factors.
However,
the
specific
drivers
size
variation
have
remained
difficult
understand
because
wide
range
proximate
factors
that
consistently
covary
with
ectotherm
sizes
across
populations
varying
local
conditions.
Here,
we
used
a
widely
distributed
lizard
(Eremias
argus)
collected
from
different
situated
China
assess
how
climatic
conditions
and/or
available
resources
at
altitudes
shape
geographical
patterns
populations.
We
data
locations
differing
in
construct
linear
mixed
models
test
relationship
ecological
climate
altitudes.
Lizard
showed
significant
differences
Furthermore,
found
among
was
also
explained
seasonal
changes
along
altitudinal
gradient.
Specifically,
decreased
colder
drier
high
altitudes,
resulting
reversal
Bergmann’s
rule.
Limited
as
measured
net
primary
productivity,
may
constrain
size.
Therefore,
our
study
demonstrates
intraspecific
female
lizards’
strongly
environments
adaptive
plasticity
for
organisms
possibly
maximise
reproductive
ecology
geographic
clines.
Global Change Biology,
Journal Year:
2023,
Volume and Issue:
29(10), P. 2669 - 2680
Published: Feb. 27, 2023
Abstract
Ongoing
climate
change
has
profoundly
affected
global
biodiversity,
but
its
impacts
on
populations
across
elevations
remain
understudied.
Using
mechanistic
niche
models
incorporating
species
traits,
we
predicted
ecophysiological
responses
(activity
times,
oxygen
consumption
and
evaporative
water
loss)
for
lizard
at
high‐elevation
(<3600
m
asl)
extra‐high‐elevation
(≥3600
under
recent
(1970–2000)
future
(2081–2100)
climates.
Compared
with
their
counterparts,
lizards
from
are
to
experience
a
greater
increase
in
activity
time
consumption.
By
integrating
these
into
hybrid
distribution
(HSDMs),
were
able
make
the
following
predictions
two
warming
scenarios
(SSP1‐2.6,
SSP5‐8.5).
2081–2100,
predict
that
both
high‐
will
shift
upslope;
gain
more
lose
less
habitat
than
congeners.
We
therefore
advocate
conservation
of
context
change,
especially
those
living
close
lower
elevational
range
limits.
In
addition,
by
comparing
results
HSDMs
traditional
models,
highlight
importance
considering
intraspecific
variation
local
adaptation
physiological
traits
along
gradients
when
forecasting
species'
distributions
change.
Journal of Animal Ecology,
Journal Year:
2023,
Volume and Issue:
92(11), P. 2163 - 2174
Published: Aug. 26, 2023
The
reptilian
form
of
hibernation
(brumation)
is
much
less
studied
than
its
mammalian
and
insect
equivalents.
Hibernation
brumation
share
some
basic
features
but
may
differ
in
others.
Evidence
for
hypometabolism
brumating
reptiles
beyond
the
effect
temperature
sporadic
often
ignored.
We
calculated
standard
metabolic
rates
(SMR,
oxygen
uptake
during
inactivity),
winter
and/or
summer,
156
individuals
representing
59
species
Israeli
squamates
across
all
17
local
families.
For
32
species,
we
measured
same
both
seasons.
gas
exchange
continuously
a
dark
chamber,
under
average
January
high
low
temperatures
(20°C
12°C),
daytime
nighttime.
examined
how
SMR
changes
with
season,
biome,
body
size,
time
day,
using
phylogenetic
mixed
models.
Metabolic
increased
at
sunrise
diurnal
despite
no
light
or
other
external
cues,
while
nocturnal
did
not
increase.
Cathemeral
shifted
from
diurnal-like
diel
pattern
to
nocturnal-like
summer.
Regardless
Mediterranean
SMRs
were
30%
higher
similar-sized
desert
species.
Summer
together
scaled
size
an
exponent
0.84
dropped
0.71
brumation.
Individuals
seasons
decreased
their
between
summer
by
47%,
on
average,
20°C
70%
12°C.
Q10
was
1.75
times
possibly
indicating
active
suppression
processes
cold
temperatures.
Our
results
challenge
commonly
held
perception
that
squamate
physiology
mainly
shaped
temperature,
little
role
intrinsic
regulation.
patterns
describe
indicate
seasonal,
geographic
factors
can
trigger
remarkable
shifts
metabolism
Global Ecology and Biogeography,
Journal Year:
2024,
Volume and Issue:
33(4)
Published: Jan. 29, 2024
Abstract
Aim
Squamate
fitness
is
affected
by
body
temperature,
which
in
turn
influenced
environmental
temperatures
and,
many
species,
exposure
to
solar
radiation.
The
biophysical
drivers
of
temperature
have
been
widely
studied,
but
we
lack
an
integrative
synthesis
actual
experienced
the
field,
and
their
relationships
temperatures,
across
phylogeny,
behaviour
climate.
Location
Global
(25
countries
on
six
continents).
Taxa
Squamates
(210
representing
25
families).
Methods
We
measured
20,231
individuals
squamates
field
while
they
were
active.
examined
how
vary
with
substrate
air
taxa,
climates
behaviours
(basking
diel
activity).
Results
Heliothermic
lizards
had
highest
temperatures.
Their
most
weakly
correlated
Body
non‐heliothermic
diurnal
similar
heliotherms
relation
nocturnal
species
correlation
was
stronger
snakes
than
heliotherms.
Body‐substrate
body‐air
correlations
varied
mean
annual
all
squamates,
especially
Thermal
relations
(heliothermy,
nocturnality)
cold
converge
towards
same
warm
climates.
Non‐heliotherms
are
better
explained
temperature.
distributions
become
left‐skewed
warmer‐bodied
colder
Main
Conclusions
frequency
globally
behavioural
climatic
factors.
For
climates,
heliothermic
species'
consistently
higher
more
stable
other
regions
warmer
climate
these
differences
less
pronounced.
A
comparable
variation
found
non‐heliotherms,
not
whose
irrespective
macroclimatic
context.
Journal of Animal Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
Abstract
Understanding
differences
in
life‐history
outcomes
under
variable
abiotic
conditions
is
essential
for
understanding
species
coexistence.
At
middle
elevations,
a
mosaic
of
available
sets
could
allow
highland
and
lowland
the
same
ecological
guild
to
overlap.
Therefore,
these
sites
are
excellent
study
influence
on
life
history
and,
thus,
spatial
overlap
patterns
competing
species.
To
test
outcomes,
we
selected
pair
closely
related
lacertids,
Iberolacerta
horvathi
Podarcis
muralis
,
with
an
overlapping
geographical
range
but
contrasting
elevational
distribution.
assess
how
biotic
factors
contribute
realized
niches
both
species,
first
built
dynamic
energy
budget
(DEB)
models
each
based
functional
data.
Then,
used
mechanistic
modelling
framework
(NicheMapR)
simulate
microclimatic
at
15
across
gradient
performed
whole
life‐cycle
simulations
compare
egg
development
times,
lifespans,
reproductive
years,
mean
yearly
basking
foraging
times
fecundity
syntopy
allotopy
along
gradient.
Our
show
that
variability
affects
traits
We
found
strong
effects
elevation
such
as
longevity,
activity
fecundity.
also
observed
syntopy/allotopy
output.
In
addition,
significant
interplay
between
impacting
where
occupying
higher
habitats
resulted
more
pronounced
reduction
P.
.
Furthermore,
using
two
different
thermal
preferences
spring
summer,
some
physiological
change
seasonal
changes
preferences.
Based
our
simulations,
conclude
intermediate
elevations
harbour
majority
syntopic
populations
exhibit
high
environmental
likely
facilitating
Since
model
predictions
support
current
distribution
not
only
affected
by
factors,
this
suggests
past
historical
contingencies
might
have
played
role.
provides
understand
interacting
comparing
responses
changing
Journal of Animal Ecology,
Journal Year:
2023,
Volume and Issue:
92(10), P. 2094 - 2108
Published: Sept. 3, 2023
Abstract
Climate
has
a
key
impact
on
animal
physiology,
which
in
turn
can
have
profound
influence
geographic
distributions.
Yet,
the
mechanisms
linking
climate,
physiology
and
distribution
are
not
fully
resolved.
Using
an
integrative
framework,
we
tested
predictions
of
climatic
variability
hypothesis
(CVH),
states
that
species
with
broader
distributions
physiological
tolerance
than
range‐restricted
species,
group
Lampropholis
skinks
(8
196
individuals)
along
latitudinal
gradient
eastern
Australia.
We
investigated
several
aspects
including
metabolism,
water
balance,
thermal
thermoregulatory
behaviour
ecological
performance.
Additionally,
to
test
whether
organismal
information
(e.g.
physiology)
enhance
models,
hence
providing
evidence
climate
interact
shape
range
sizes,
models
incorporating
better
predict
sizes
using
solely
layers.
In
agreement
CVH,
our
results
confirm
widespread
tolerate
perform
at
temperature
ranges
species.
also
found
differences
field
body
temperatures,
but
preference,
between
However,
metabolism
balance
did
correlate
size.
Biophysical
modelling
revealed
incorporation
behavioural
data
improves
compared
based
macroclimatic
inputs,
mainly
for
By
integrating
niche
ectothermic
animals,
study
provides
correlates
Physiological
responses
central
establishing
skinks,
processes
occurring
local
scales
behaviour)
improve
models.
Journal of Biogeography,
Journal Year:
2022,
Volume and Issue:
49(7), P. 1274 - 1285
Published: May 18, 2022
Abstract
Aim
Many
ectotherms
are
at
risk
from
climate
change
as
temperatures
increasingly
exceeding
their
thermal
limits.
evaluations
of
the
vulnerability
to
have
relied
on
statistical
metrics
derived
coarse‐scale
climatic
data,
which
may
result
in
misleading
predictions.
By
applying
an
integrative
approach,
we
investigated
geographical
correlates
lizards
change.
Location
Globally.
Taxon
Lizards.
Methods
We
combined
data
lizard
physiology
and
ecology,
with
high‐resolution
biophysical
modelling
assess
lizards’
calculated
warming
tolerance
(difference
between
body
upper
limits)
number
hours
activity.
associations
activity
time
latitude,
altitude
biome
types.
compared
our
approach
traditional
methods
calculate
(using
solely
macroclimatic
data).
Results
found
no
latitudinal
trend
temperature,
but
there
was
a
weak
negative
correlation
altitude.
latitude
Desert
species
showed
narrower
than
tropical
temperate
species.
had
reduced
when
When
however,
it
positively
correlated
altitude,
forested
biomes
narrow
tolerances.
Main
Conclusions
Vulnerability
can
produce
divergent
outcomes
those
observed
fine‐scale
data.
Our
work
indicates
that
ability
desert
cope
heat
stress
by
thermoregulating
is
more
constrained
Integrative
assessments
ectotherms'
highlight
regions
should
be
prioritised
for
conservation
management.
Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
13(8)
Published: Aug. 1, 2023
The
evolution
of
body
size
within
and
among
species
is
predicted
to
be
influenced
by
multifarious
environmental
factors.
However,
the
specific
drivers
variation
have
remained
difficult
understand
because
wide
range
proximate
factors
that
covary
with
ectotherm
sizes
across
populations
varying
local
conditions.
Here,
we
used
female
Journal of Experimental Zoology Part A Ecological and Integrative Physiology,
Journal Year:
2024,
Volume and Issue:
341(9), P. 1041 - 1052
Published: Aug. 5, 2024
Abstract
Common
wall
lizards
(
Podarcis
muralis
)
in
Italy
show
a
striking
variation
body
coloration
across
the
landscape,
with
highly
exaggerated
black
and
green
colors
hot
dry
climates
brown
white
cool
wet
climates.
Males
are
more
intensely
colored
than
females,
previous
work
has
suggested
that
maintenance
of
landscape
reflects
climatic
effects
on
strength
male–male
competition,
through
this
sexual
selection.
However
intensity
competition
would
need
to
be
exceptionally
strong
fully
explain
geographic
patterns
color
variation.
Thus,
additional
processes
may
contribute
Here
we
test
hypothesis
selection
for
ornamentation
context
is
opposed
by
against
because
genes
involved
regulation
have
pleiotropic
thermal
physiology,
such
selected
Field
observations
revealed
no
association
between
microhabitat
use
or
field
active
temperatures.
Consistent
these
data,
at
extreme
ends
phenotypic
distribution
did
not
any
differences
critical
minimum
temperature,
preferred
temperature‐dependent
metabolic
rate,
evaporative
water
loss
when
tested
laboratory.
Combined,
results
provide
evidence
underlie
climate
biology.