Ecology and Evolution,
Год журнала:
2023,
Номер
13(2)
Опубликована: Фев. 1, 2023
Abstract
Species
distribution
models
(SDMs)
are
practical
tools
to
assess
the
habitat
suitability
of
species
with
numerous
applications
in
environmental
management
and
conservation
planning.
The
manipulation
input
data
deal
their
spatial
bias
is
one
advantageous
methods
enhance
performance
SDMs.
However,
development
a
model
parameterization
approach
covering
different
SDMs
achieve
well‐performing
has
rarely
been
implemented.
We
integrated
tuning
for
four
commonly‐used
SDMs:
generalized
linear
(GLM),
gradient
boosted
(GBM),
random
forest
(RF),
maximum
entropy
(MaxEnt),
compared
predictive
geographically
imbalanced‐biased
rare
complex
mountain
vipers.
Models
were
tuned
up
based
on
range
model‐specific
parameters
considering
two
background
selection
methods:
weighting
schemes.
fine‐tuned
was
assessed
recently
identified
localities
species.
results
indicated
that
although
version
all
shows
great
predicting
training
(AUC
>
0.9
TSS
0.5),
they
produce
classifying
out‐of‐bag
data.
GBM
RF
higher
sensitivity
showed
more
performances.
GLM,
despite
having
high
test
data,
lower
specificity.
It
only
MaxEnt
comparable
identifying
both
procedures.
Our
highlight
while
prone
overfitting
GLM
over‐predict
nonsampled
areas
capable
producing
predictable
(extrapolative)
(interpolative).
discuss
assumptions
each
conclude
could
be
considered
as
method
cope
modeling
approaches.
Ecological Indicators,
Год журнала:
2024,
Номер
158, С. 111606 - 111606
Опубликована: Янв. 1, 2024
Firmiana
danxiaensis
(F.
danxiaensis)
is
a
special
native
species
with
narrow
distribution.
More
than
90
%
of
the
plant
in
genus
that
F.
belongs
to
are
rare
The
main
distribution
area
Mount
Danxia,
representative
China
Danxia
where
many
endemic
landform
have
been
bred.
We
carried
out
gap
analysis
by
overlapping
nature
reserves
potential
habitat
danxiaensis.
results
show
that:
(1)
6,255.28
km2
simulated
Biomod2
ensemble
model
and
4,114.19
Maxent,
respectively,
which
accounted
for
3.48
2.29
study
area,
located
Nanxiong
county,
Shixing
Renhua
Qujiang
county;
(2)
prefers
areas
max
temperature
warmest
month
over
32.5℃,
seasonality
between
6000
7000,
occurrence
probability
was
at
its
highest
level
when
reached
36
37
°C,
nearly
7000;
(3)
more
40
anthropogenically
disturbed;
(4)
conservation
3,390.26
km2,
accounting
82.40
total
habitat,
model,
4.899.62
78.33
habitat.
protection
status
danxiensis
poor,
populations
Yingde
not
covered
already
subject
serious
human
disturbance.
It
recommended
structure
existing
protected
be
adjusted,
scope
corresponding
appropriately
expanded,
new
added
ensure
sustainable
development
populations.
Frontiers in Ecology and Evolution,
Год журнала:
2025,
Номер
12
Опубликована: Янв. 13, 2025
The
main
cause
of
the
global
threat
to
large
carnivore
populations
living
in
high-altitude
areas
is
human
pressure.
Himalayan
brown
bear
(
Ursus
arctos
isabellinus
,
hereafter
bear)
listed
as
a
critically
endangered
species,
and
it
dominates
higher
altitudes
North
Western
landscapes.
Here,
we
used
species
distribution
modelling
landscape
connectivity
find
bears’
suitable
habitats
corridors
Deosai
National
Park
(DNP)
surrounding
areas.
Species
models
detected
bear’s
habitat
1,125
km
2
which
ca.
73%
was
covered
by
DNP.
most
crucial
predictors
determining
were
elevation—particularly
if
between
3,500
4,500
meters
above
sea
level—as
well
distance
from
rivers,
cattle,
DNP
borders.
We
discovered
robust
among
presence
points
core
study
area,
particularly
within
boundaries,
using
electrical
circuit
theory
models.
Landscape
values
indeed
low
some
outside
close
confines.
Based
on
our
findings,
imperative
protect
that
allow
bears
migrate
patches,
beyond
park’s
improve
conservation.
Ecological Informatics,
Год журнала:
2023,
Номер
77, С. 102247 - 102247
Опубликована: Авг. 6, 2023
Distribution
range
shift
is
inevitable
for
many
species
as
climate
change
continues
to
shape
and
alter
their
habitat.
Predicting
where
these
shifts
occur
can
help
us
know
what
anticipate
thus
design
better
programs
strategies
management.
Due
projected
extreme
in
arid
semi-arid
ecosystems,
we
hypothesized
that
adapted
systems
would
experience
considerable
spatial
shifts.
To
test
our
hypothesis,
modelled
current
future
habitats
under
different
scenarios
three
iconic
carnivores
(grey
wolf,
golden
jackal,
striped
hyaena)
central
of
Iran
calculated
overlaps.
Our
models
predict
although
each
responds
differently
environmental
changes,
are
heavily
influenced
by
climatic
variables,
water
resources,
roads.
also
suggest
the
high-quality
grey
wolves
hyaenas
will
probably
expand,
while
jackals,
it
decrease.
Significant
overlap
highly
suitable
habitat
exist
among
species,
particularly
between
jackal
hyaena.
The
overlapped
areas
all
cover
9%
10%
whole
region
at
present
future.
Because
decrease
rainfall
future,
may
face
competition
due
change.
findings
crucial
establishing
conservation
conserve
carnivore
Journal of Wildlife Management,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 19, 2025
Abstract
The
Lorestan
newt
(
Neurergus
kaiseri
)
is
a
vulnerable
amphibian
endemic
to
the
Zagros
Mountains
in
Iran.
This
study
aimed
identify
core
habitats,
assess
potential
dispersal
corridors,
and
evaluate
effectiveness
of
current
conservation
efforts.
Ensemble
species
distribution
models
predicted
suitable
habitat
across
newt's
range,
with
annual
precipitation
temperature
as
most
influential
factors.
Connectivity
simulations
revealed
critical
primarily
concentrated
northwestern
region,
that
spanned
2,233.43
km²,
none
which
fell
within
designated
protected
areas.
Corridor
analysis
identified
viable
pathways
between
northern
southern
populations,
but
only
2.77%
corridor
network
was
protected.
Roads
dams
frequently
intersected
putative
posing
significant
fragmentation
threats.
These
results
underscore
urgent
need
for
expanded
efforts,
including
establishment
new
areas
measures
mitigate
fragmentation,
ensure
connectivity
long‐term
viability
populations.
Our
findings
provide
valuable
insights
guide
future
strategies
this
endangered
species.
