Annals of Institute of Biology University of Sarajevo,
Год журнала:
2023,
Номер
45, С. 29 - 40
Опубликована: Янв. 1, 2023
Carex
acuta
leaves
were
sampled
on
the
edge
of
glacial
lake
Gornje
bare
(National
Park
“Sutjeska”,
Zelengora
mountain,
Bosnia
and
Herzegovina).
Two
types
samples
taken:
plants
that
grew
moist
soil
at
time
sampling,
designated
as
CAm,
partially
submerged
sampling
CAs.
Our
work
aimed
to
compare
content
photosynthetic
pigments,
concentration
total
phenolic
compounds
flavonoids
well
antioxidant
capacity
between
two
CAm
CAs
samples.
results
showed
chlorophyll
carotenoids
higher
in
sample.
Higher
concentrations
(28.987±
0.502
mg/g
DW)
(22.079
±
1.471
measured
The
by
ABTS
(2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic
acid)
method
phosphomolybdenum
extract.
abilities
reduce
Fe3+
ions
chelate
Fe
for
Obtained
indicate
are
significantly
influenced
environmental
conditions
even
same
species.
present
study
provides
first
insight
into
characteristics
C.
from
western
Balkans.
Applied Water Science,
Год журнала:
2024,
Номер
14(4)
Опубликована: Март 14, 2024
Abstract
Among
the
various
natural
disasters
that
take
place
around
world,
flood
is
considered
to
be
most
extensive.
There
have
been
several
floods
in
Buzău
river
basin,
and
as
a
result
of
this,
area
has
chosen
study
area.
For
purpose
this
research,
we
applied
deep
learning
machine
benchmarks
order
prepare
potential
maps
at
basin
scale.
In
regard
12
predictors,
205
non-flood
locations
were
used
input
data
into
following
3
complex
models:
Deep
Learning
Neural
Network-Harris
Hawk
Optimization-Index
Entropy
(DLNN-HHO-IOE),
Multilayer
Perceptron-Harris
(MLP-HHO-IOE)
Stacking
ensemble-Harris
(Stacking-HHO-IOE).
The
sample
was
divided
training
(70%)
validating
(30%)
sample,
meanwhile
prediction
ability
conditioning
factors
tested
through
Correlation-based
Feature
Selection
method.
ROC
Curve
statistical
metrics
involved
results
validation.
modeling
process
stated
algorithms
showed
important
predictors
are
represented
by:
slope
(importance
≈
20%),
distance
from
17.5%),
land
use
12%)
TPI
10%).
importance
values
compute
susceptibility,
while
Natural
Breaks
method
classify
results.
high
very
susceptibility
spread
on
approximately
35–40%
zone.
Curve,
terms
Success,
Rate
shows
highest
performance
achieved
FPI
DLNN-HHO-IOE
(AUC
=
0.97),
followed
by
Stacking-HHO-IOE
0.966)
MLP-HHO-IOE
0.953),
Prediction
indicates
being
performant
model
with
an
AUC
0.977,
0.97)
0.924).
Global Ecology and Conservation,
Год журнала:
2024,
Номер
51, С. e02901 - e02901
Опубликована: Март 14, 2024
The
Yangtze
River
Basin
was
among
the
areas
most
severely
affected
by
widespread
extreme
drought
in
Northern
Hemisphere
2022.
Drought
conditions
this
basin
extended
into
wintering
season,
significantly
influencing
waterfowl
habitat
availability.
Exploring
how
distributions
and
ecological
niches
respond
to
these
changes
wetland
environmental
underlying
mechanisms
are
important
for
biodiversity
conservation
understanding
processes.
By
integrating
field
observations,
remote
sensing,
niche
modelling,
we
analysed
over
past
decade
investigated
distribution
patterns
spatial
of
two
guilds,
ducks
geese,
Dongting
Lake
Region,
a
key
ecosystem
Basin.
led
drastic
reduction
waterbody
area
natural
habitats
caused
vegetation
enter
wilting
stage
prematurely.
In
response,
substantial
proportion
shifted
adjacent
managed
wetlands
with
stable
water
levels,
especially
ducks,
whose
pattern
fundamentally
altered.
both
guilds
showed
significant
correlation
area.
Further,
compared
2022
that
former
year,
which
represented
typical
year
normal
hydrology.
underwent
contraction,
while
geese
remained
large
years
but
inward
towards
lower
elevation,
foraging
resource
use
Therefore,
extent
overlap
between
small.
This
study
has
implications
impact
climatic
hydrological
events
on
ecosystems.
Furthermore,
our
results
emphasise
importance
level-managed
conservation.
Avian Research,
Год журнала:
2023,
Номер
14, С. 100102 - 100102
Опубликована: Янв. 1, 2023
The
hydrological
regime
in
wetlands
plays
an
important
role
the
process
of
wintering
waterbird
metacommunity
assemblage.
However,
increasing
frequency
extreme
climate
and
intensification
human
activities,
such
as
construction
sluices
dams,
have
resulted
frequently
abnormal
middle
lower
Yangtze
River
floodplain.
In
recent
years,
earlier
flood
recession
has
become
one
main
problems
faced
shallow
lakes,
having
a
great
impact
on
wetland
biodiversity.
It
is
necessary
to
understand
waterbirds,
indicator
biodiversity,
concept
helpful
elucidate
underlying
mechanism
involved
processes
assemblage
by
communities.
this
study,
we
surveyed
waterbirds
at
three
sub-lakes
Caizi
Lakes
during
2019–2020
2020–2021
compared
richness,
abundance,
alpha
beta
diversity
among
local
metacommunities
under
normal
.
results
showed
that
reduced
species
richness
early
stage
abundance
late
stage,
it
also
Shannon–Wiener
index
increased
dissimilarity
between
within
stage.
partition
turnover
component
played
major
was
found
different
stages
recession,
which
waterbirds.
Metacommunities
with
high
habitat
heterogeneity
had
better
resistance
regime,
metacommunities.
study
provide
information
for
conservation
water
level
management
lakes
