How vulnerable are the nesting sites of loggerhead turtles in Cabo Verde?
Diana Sousa‐Guedes,
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Adolfo Marco,
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Edinaldo Luz das Neves
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et al.
Regional Environmental Change,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: Feb. 28, 2025
Language: Английский
The effects of warming on loggerhead turtle nesting counts
Journal of Animal Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 21, 2025
Abstract
Global
trends
in
marine
turtle
nesting
numbers
vary
by
region,
influenced
environmental
or
anthropogenic
factors.
Our
study
investigates
the
potential
role
of
past
temperature
fluctuations
on
these
trends,
particularly
whether
warmer
beaches
are
linked
to
increased
due
higher
female
production
(since
sea
turtles
have
temperature‐dependent
sex
determination).
We
selected
loggerhead
(
Caretta
caretta
)
its
wide
distribution,
strong
philopatry
and
vulnerability
changes.
compiled
nest
counts
per
year
35
globally
significant
rookeries,
analysing
at
regional
individual
beach
levels.
air
(CHELSA)
land
surface
(MODIS)
data
sets
spanning
last
four
decades
(1979–2023)
for
each
location.
To
analyse
temporal
temperatures,
we
used
generalised
additive
models
Mann–Kendall
trend
tests.
Additionally,
correlated
with
lagged
variables.
found
warming
33
locations,
23
which
also
showed
increases
counts.
results
suggest
that
rising
temperatures
may
be
boosting
regions
Caribbean,
Atlantic
Ocean
Mediterranean
(sites
Cayman,
Mexico,
Brazil,
Cyprus
Turkey).
Furthermore,
while
some
temporarily
benefit,
continued
could
precipitate
long‐term
population
declines.
This
variability
helps
predict
species
responses
climate
change,
general
global
increase
already
indicating
short‐term
effects.
Nesting
count
might
reflect
a
combination
natural
ecological
phenomena,
conservation
efforts,
Long‐term
studies
needed
assess
ratio
hatchlings
extent
feminisation
is
driving
numbers.
Language: Английский
Biology, Nesting Behavior, Genetic Diversity, and Conservation of Leatherback Sea Turtles: Insights From Thailand and Global Perspectives
Ecology and Evolution,
Journal Year:
2025,
Volume and Issue:
15(2)
Published: Feb. 1, 2025
ABSTRACT
Sea
turtles
are
large
reptiles
that
inhabit
the
world's
oceans
and
include
seven
extant
species
within
two
families:
Cheloniidae
Dermochelyidae.
These
threatened
globally,
with
several
subpopulations
listed
as
Endangered
or
Critically
by
IUCN.
Thailand
hosts
five
sea
turtle
species,
including
leatherback
(
Dermochelys
coriacea
),
which
significant
for
their
nesting
sites
along
Andaman
coast.
Conservation
efforts
in
beach
patrols,
hatcheries,
community
education
to
mitigate
threats
such
poaching
habitat
destruction.
Leatherback
turtles,
classified
“Vulnerable”
IUCN
CITES
Appendix
,
face
challenges
estimating
global
population
size
due
highly
migratory
nature.
They
largest
distinct
physical
characteristics
leathery
skin,
lack
of
scales,
a
hard
shell,
backward‐pointing
spines
throat
aid
passage
food.
Leatherbacks
reach
sexual
maturity
at
around
13–14
years
age
exhibit
natal
homing
behavior
nesting.
have
low
hatching
rates;
only
50%
eggs
hatch,
just
2%
those
hatchlings
survive.
Population
genetic
studies
been
key
better
understanding
survival,
revealing
mtDNA
haplotype
diversity,
notable
recent
radiation
originating
from
Indo‐Pacific
region.
Despite
this
there
is
structuring,
hints
hidden
populations
foraging
grounds
may
contribute
variability.
For
reason,
relocating
nests
favorable
locations
one
possible
conservation
measure.
Other
strategies
must
address
loss,
pollution,
bycatch,
climate
change
protection
well
ensuring
connectivity
maintain
diversity
these
turtles.
Language: Английский
Climate change implications in the suitable habitat of Olive ridley turtle Lepidochelys olivacea in the Eastern Tropical Pacific
Marine Environmental Research,
Journal Year:
2025,
Volume and Issue:
unknown, P. 107091 - 107091
Published: March 1, 2025
Language: Английский
Study on the relationship between trace elements and microbiological profiles in organs and tissues, for an innovative ecological perspective on the health of sea turtle Caretta caretta
Marine Pollution Bulletin,
Journal Year:
2025,
Volume and Issue:
217, P. 118114 - 118114
Published: May 14, 2025
Language: Английский
Over 30 years of monitoring and implementing the Bern Convention's recommendations for the protection of Mediterranean sea turtles
Nikolaos Simantiris,
No information about this author
Konstantina Andreanidou,
No information about this author
George Sampson
No information about this author
et al.
Marine Policy,
Journal Year:
2024,
Volume and Issue:
168, P. 106319 - 106319
Published: July 21, 2024
Language: Английский
Assessing the phenology and reproductive output of loggerhead turtles in relation to climatic variables at Patara Beach, Türkiye
Journal of Zoology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 30, 2024
Abstract
Loggerhead
turtles
(
Caretta
caretta
),
being
ectothermic
organisms,
could
be
especially
susceptible
to
climate
change
effects,
and
may
exhibit
climate‐related
variation
in
their
reproductive
behaviours
such
as
phenology,
annual
nest
numbers,
clutch
size,
hatching
success,
incubation
period
sex
ratio.
This
study
investigated
the
phenology
outputs
of
loggerhead
relationships
with
climatic
variables
over
a
5‐year
(2019–2023)
at
Patara
Beach,
Türkiye.
We
found
significant
fluctuations
atmospheric
temperature,
sea
surface
temperature
relative
humidity,
that
female
turtle
emergences
on
Beach
temporarily
adjust
response
these
minor
environmental
changes.
highlight
importance
understanding
impacts
phenological
shifts
ability
satisfy
conditions
nesting
season
determine
output.
Our
statistical
analyses
also
showed
increasing
water
temperatures
temperatures,
well
decreasing
precipitation
had
direct
and/or
indirect
effects
output
turtles.
The
findings
from
this
indicate
significantly
affected
period,
success
rate,
number
dead
embryos
empty
eggshells.
Additionally,
humidity
impact
In
context,
rising
led
drier
conditions,
decreased
periods
increased
resulting
higher
proportions
offspring.
conclusion,
there
are
still
gaps
our
biology
turtles,
more
studies
needed
both
Mediterranean
global
scales
better
understand
effects.
Language: Английский
Recommendation of consensus definition of sea turtle fibropapillomatosis
Wildlife Letters,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 29, 2024
Abstract
Sea
turtle
fibropapillomatosis
(FP)
is
an
emerging
transboundary
contagious
disease
that
affected
concomitantly
two
different
marine
hot
spots
in
the
Northern
Atlantic
Ocean
and
South
China
at
beginning
of
twentieth
century.
FP
reached
a
panzootic
status
1990s
green
(
Chelonia
mydas
)
populations,
with
increased
risks
emergence
spread
which
have
been
correlated
climate
induced
terrestrial
oceanic
physical
chemical
changes.
During
2023–2024,
scientific
experts
performed
bibliographic
review
recommend
consensus
definition
sea
fibropapillomatosis.
viral
aquatic
neoplastic
syndrome
involving
cancerous
molecular
transmission
pathways,
may
affect
all
species
turtles
life
stages.
The
diagnosis
most
common
verrucous
form
pathognomonic
by
visual
examination
turtle.
We
summarize
main
clinical
characteristics
FP,
moderated
degree
confidence
research
findings
adapted
from
Intergovernmental
Panel
on
Climate
Change
(IPCC)
assessment
reports.
implementation
universal
transparent
monitoring
strategy
sentinel
bays,
under
governance
World
Organisation
for
Animal
Health.
Language: Английский