Linking physiology and climate to infer species distributions in Australian skinks
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.
Language: Английский
Greater plasticity in CTmax with increased climate variability among populations of tailed frogs
Proceedings of the Royal Society B Biological Sciences,
Journal Year:
2024,
Volume and Issue:
291(2034)
Published: Nov. 1, 2024
Temporally
variable
climates
are
expected
to
drive
the
evolution
of
thermal
physiological
traits
that
enable
performance
across
a
wider
range
temperatures
(i.e.
climate
variability
hypothesis,
CVH).
Spatial
variability,
however,
may
mediate
this
relationship
by
providing
ectotherms
with
opportunity
behaviourally
select
preferred
Bogert
effect).
These
antagonistic
forces
on
explain
mixed
support
for
CVH
within
species
despite
strong
among
at
larger
geographical
scales.
Here,
we
test
as
it
relates
plasticity
in
upper
limits
(critical
maximum—CTmax)
populations
coastal
tailed
frogs
(
Ascaphus
truei
).
We
targeted
inhabit
spatially
homogeneous
environments,
reducing
potentially
confounding
effects
behavioural
thermoregulation.
found
experiencing
greater
temporal
exhibited
CTmax,
supporting
CVH.
Interestingly,
identified
only
one
site
spatial
temperature
and
tadpoles
from
demonstrated
than
expected,
suggesting
thermoregulation
can
reduce
Overall,
our
results
demonstrate
role
shaping
provide
baseline
understanding
impact
landscapes.
Language: Английский
Regional thermal variation in a coral reef fish
Conservation Physiology,
Journal Year:
2024,
Volume and Issue:
12(1)
Published: Jan. 1, 2024
How
species
respond
to
climate
change
will
depend
on
the
collective
response
of
populations.
Intraspecific
variation
in
traits,
evolved
through
genetic
adaptation
and
phenotypic
plasticity,
can
cause
thermal
performance
curves
vary
over
species'
distributions.
within
marine
has
received
relatively
little
attention
due
belief
that
systems
lack
dispersal
barriers
strong
enough
promote
locally
adapted
traits.
Here
we
show
intraspecific
is
present
between
low-
high-latitude
populations
a
coral
reef
damselfish
(
Language: Английский