Hoisting the white flag of surrender? Color change in agonistic encounters between Achala copper lizard males (Pristidactylus achalensis)
Behavioral Ecology and Sociobiology,
Journal Year:
2023,
Volume and Issue:
77(10)
Published: Oct. 1, 2023
Language: Английский
Dynamic dichromatism and effects of high temperatures on male coloration plasticity in an ectotherm model
Biological Journal of the Linnean Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 20, 2024
Abstract
Climate
change
is
increasing
the
temperatures
of
wild
environments,
but
impacts
on
evolutionary
ecological
processes,
such
as
sexual
selection,
are
still
under-studied.
In
ectotermic
tetrapods,
male
coloration
a
pivotal
trait
in
social
contexts.
During
reproductive
season,
males
can
enhance
dichromatic
certain
body
regions.
However,
it
unknown
how
dichromatism
might
interact
with
that
cause
to
fall
within
upper
range
preferred
temperatures.
We
hypothesize
could
be
dynamic,
i.e.
show
changes,
being
reinforced
during
period
species.
high
associated
climate
disrupt
colour
patterns
by
inducing
plastic
changes.
test
this
lizard
species
Tropidurus
spinulosus
laboratory
setting
applying
three
thermal
treatments:
one
reproducing
current
conditions
and
two
simulating
scenarios
change.
Our
results
highlight
enhanced
season
key
regions
for
displays.
At
temperature
species,
darken
their
ventral
coloration;
however,
no
was
observed
at
Therefore,
impact
capacity
adjust
plastically
season.
Language: Английский
Behavioural plasticity in activity and sexual interactions in a social lizard at high environmental temperatures
PLoS ONE,
Journal Year:
2023,
Volume and Issue:
18(7), P. e0285656 - e0285656
Published: July 26, 2023
Sexual
selection
often
shapes
social
behavioural
activities,
such
as
movement
in
the
environment
to
find
possible
partners,
performance
of
displays
signal
dominance
and
courtship
behaviours.
Such
activities
may
be
negatively
influenced
by
increasing
temperatures,
especially
ectotherms,
because
individuals
either
have
withstand
unfavourable
condition
or
are
forced
allocate
more
time
thermoregulation
shelter
seeking
behaviour.
Thus,
they
“miss”
opportunities
for
reproductive
interactions.
Moreover,
ectotherms
closely
depend
on
temperature;
consequently,
mate
choice
behaviours
disrupted,
ultimately
modifying
sexual
patterns.
Therefore,
it
would
interesting
elucidate
how
temperatures
associated
with
global
warming
influence
activity
interactions
species’
natural
habitat
and,
specifically
high
modify
intersexual
Consequently,
our
aim
was
explore
differences
daily
pattern
an
ectotherm
model,
Tropidurus
spinulosus
,
two
thermally
different
habitats
determine
choice.
High
environmental
were
found
a
bimodal
activity,
which
linked
variations
thermal
quality
habitat;
whereas
frequency
showed
less
plasticity.
The
allocated
generally
decreased
temperature
since
increased
use
refuges;
this
result
supports
hypothesis
“missed
opportunities”.
at
both
sexes
changes
dynamics,
females
possibly
“rushing”
males
showing
increase
intermale
variability
displays.
In
plastic
adjustments
induced
plus
modification
during
patterns
dynamics.
Language: Английский