The costs of living in the city: influence of urbanization on the trophic niche and body condition of the African rainbow lizard Agama picticauda
European Journal of Wildlife Research,
Journal Year:
2023,
Volume and Issue:
69(6)
Published: Oct. 25, 2023
Language: Английский
What Causes Differences in the Age-Class Structure between Suburban and Forest Populations of Anolis homolechis?
Diversity,
Journal Year:
2024,
Volume and Issue:
16(1), P. 35 - 35
Published: Jan. 4, 2024
Although
growing
urbanization
has
direct
negative
consequences
for
local
biodiversity,
several
native
species
have
been
observed
maintaining
populations
in
urban
environments.
Understanding
which
factors
influence
the
ability
of
to
persist
environments
is
crucial,
both
study
biological
adaptation
and
planning.
The
quantification
proportion
juvenile
individuals
can
be
a
good
proxy
assessing
long-term
persistence
populations.
We
present
comparative
data
about
spatial
temporal
variations
age-class
structure
two
suburban
forest
Cuban
endemic
lizard
Anolis
homolechis,
obtained
during
20-month
survey.
found
four-fold
lower
juveniles
habitat
compared
one.
There
was,
however,
no
evidence
differential
female
fecundity
between
habitats,
as
assessed
by
gravid
females.
Conversely,
rate
tail
autotomy
(an
antipredator
behavior)
was
significantly
higher
ones,
possibly
reflecting
exposure
predators
and,
particularly,
inter-
intraspecific
cannibalism.
However,
loss
at
initial
capture
or
type
had
effect
on
probability
recapture
juveniles.
discuss
potential
causes
modified
urbanized
Language: Английский
Do Suburban Populations of Lizards Behave Differently from Forest Ones? An Analysis of Perch Height, Time Budget, and Display Rate in the Cuban Endemic Anolis homolechis
Diversity,
Journal Year:
2023,
Volume and Issue:
15(2), P. 261 - 261
Published: Feb. 13, 2023
Urbanization
transforms
natural
ecosystems
into
novel
habitats,
which
can
result
in
negative
consequences
for
biodiversity.
Therefore,
it
is
important
to
understand
the
mechanisms
of
maintenance
native
species
urbanized
environments,
including
behavior—which
act
as
a
fast
response
rapid
environmental
changes.
We
compared
some
behavioral
traits
between
two
suburban
and
forest
populations
Anolis
homolechis.
Direct
observations
779
individuals
revealed
that
perch
height
was
positively
influenced
by
body
size,
but
not
sex.
Suburban
perched
higher
than
ones,
even
more
so
afternoon
morning;
behavior
observed
forests
populations.
These
differences
might
be
due
change
from
foraging
activities
morning
vigilance,
display,
and/or
thermoregulation
afternoon,
promoted
habitat
conditions
(e.g.,
predator
abundance,
open
structure,
urban
heat).
Video
recordings
81
focal
showed
males
were
active
females
(i.e.,
spending
less
time
stationary
having
display
rate),
with
no
significant
effect
type.
As
our
results
diverge
previous
studies
on
invasive
anoles,
we
recommend
extending
comparative
non-urban
other
Anolis.
Language: Английский
Autotomy in Achala copper lizard: do sex and body size traits influence tail loss and regeneration?
Journal of Zoology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 20, 2024
Abstract
Autotomy
in
animals,
the
voluntary
loss
of
a
body
part
at
specific
location,
is
widespread
behaviour
observed
across
various
groups.
This
mechanism
provides
several
advantages,
such
as
predator
evasion,
escape
from
entrapments,
and
even
reduced
injury
costs
agonistic
interactions.
Lizards
display
tail
autotomy
response
to
predation
intraspecific
aggression.
Moreover,
it
common
for
these
reptiles
have
sexually
dimorphic
traits,
colouration
size,
which
may
influence
risk
consequently
their
antipredatory
strategies.
study
focuses
on
Achala
copper
lizard
(
Pristidactylus
achalensis
)
inhabits
an
isolated
highland
ecosystem
central
Argentina.
species
ideal
model
due
its
territorial
aggressive
behaviour,
high
competition
sexual
dichromatism.
The
aims
this
were
determine
sex
size
occurrence
P.
.
Additionally,
we
assessed
cost
by
analysing
distance
between
vent
cut.
Furthermore,
investigated
possibility
repeated
single
individual.
Our
results
showed
that
,
interacted
significantly
resulting
different
patterns
autotomy.
In
females,
frequency
increased
gradually
with
whereas
males
more
abruptly
reached
maximum
smaller
sizes
than
females.
Males
presented
higher
frequencies
likely
because
they
are
be
perceived
avian
predators
cryptic
findings
contribute
broadening
knowledge
shedding
light
complex
interplay
predation,
reproductive
dynamics
unique
species.
Language: Английский
Contemporary Survival Selection Fails to Explain Observed Patterns of Phenotypic Divergence Between Suburban and Forest Populations of the Cuban Endemic Lizard, Anolis homolechis
Biology,
Journal Year:
2024,
Volume and Issue:
13(12), P. 1019 - 1019
Published: Dec. 5, 2024
Although
urbanization
is
a
major
threat
to
biodiversity,
some
native
species
have
managed
persist
in
urban
areas.
Populations
of
such
often
show
phenotypic
differences
with
their
rural
counterparts.
A
crucial
question
whether
result
from
different
selection
regimes
between
habitats.
As
previous
studies
showed
that
suburban
and
forest
populations
Anolis
homolechis
differ
both
body
size
sex
ratio,
we
tested
the
effect
on
adult
survival
those
based
long-term
capture-marking-recapture
survey
replicated
design.
We
assessed
evidence
for
directional
stabilizing
two
by
modeling
apparent
recapture
probability
separately.
Adult
did
not
habitat
types.
In
addition,
there
was
no
size-related
differential
However,
irrespective
habitat,
found
significant
female
size,
whereas
male
independent
size.
Overall,
had
type
(monthly
probability:
0.80
males
vs.
up
0.89
females
optimal
size).
discuss
our
results
relation
potential
mechanisms
involved
observed
differentiation
A.
other
lizard
areas
transformed
urbanization.
Language: Английский