Microbial community dynamics in shallow-water grass-type lakes: Habitat succession of microbial ecological assembly and coexistence mechanisms
Ecotoxicology and Environmental Safety,
Год журнала:
2025,
Номер
291, С. 117819 - 117819
Опубликована: Фев. 1, 2025
Aggregation
and
co-occurrence
patterns
of
microbial
communities
are
the
key
scientific
issues
in
lake
ecology.
To
explore
mechanisms
ecological
assembly
community
succession
this
unique
habitat,
16
samples
were
collected
from
eight
sites
Wuliangsuhai
Lake.
Second-generation
DNA
sequencing
was
applied
to
reveal
spatial
dynamics
bacterial
structure
distribution
across
two
environmental
media
nutrient-rich
shallow
grassland
elucidate
characteristics
network.
This
study
also
examined
effects
filtering
biological
interactions
on
formation
maintenance
composition
diversity.
The
results
highlight
habitat
heterogeneity
composition,
with
no
discernible
latitudinal
diversity
patterns.
causal
analysis
identified
electrical
conductivity,
pH,
total
nitrogen,
phosphorus
as
primary
factors
driving
changes
water
sediment
grass-type
lakes,
TN
being
driver.
CL500-3
a
pollution-tolerant
species
aquatic
environments.
g__norank_f_Verrucomicrobiaceae
exhibited
significant
distance
decay
pattern,
higher
turnover
rate
than
sediment.
Co-occurrence
network
revealed
greater
complexity
stability
communities,
three
potential
keystone
species,
water.
neutral
null
model
indicated
that
more
susceptible
dispersal
limitation,
whereas
complex
increased
role
deterministic
processes
construction.
proposed
division
plant
regions
freshwater
lakes
demonstrated
different
types,
contributing
comprehensive
understanding
shallow-water
structure.
Язык: Английский
Spatiotemporal evolution of environmental factors in representative tributaries of the Yellow River: insights from a decade of monitoring data
Environmental Geochemistry and Health,
Год журнала:
2025,
Номер
47(5)
Опубликована: Апрель 5, 2025
Язык: Английский
The hidden influence of protozoa on hydrophyte-epiphytic bacterial communities
Global Ecology and Conservation,
Год журнала:
2025,
Номер
61, С. e03638 - e03638
Опубликована: Май 16, 2025
Язык: Английский
Effects of water replenishment on lake water quality and trophic status: An 11-year study in cold and arid regions
Ecotoxicology and Environmental Safety,
Год журнала:
2024,
Номер
281, С. 116621 - 116621
Опубликована: Июнь 19, 2024
Water
replenishment
is
an
important
measure
for
maintaining
and
improving
the
aquatic
environmental
quality
of
lakes.
The
problems
water
deterioration
shortage
can
be
alleviated
by
introducing
higher
quality.
However,
mechanism
in
improvement
trophic
status
lakes
remains
unclear.
This
study
investigated
Wuliangsuhai
Lake
(WLSHL)
from
2011
to
2021
collecting
seasonal
samples
conducting
laboratory
analyses.
was
found
capable
significantly
lake
alleviating
eutrophication.
It
worth
noting
that
single
long-term
measures
have
limitations
status.
whole
process
divided
into
three
stages
according
status,
namely
buffer
period,
decline
stable
period.
During
showed
only
slight
because
small
amount
low
proportion
higher-quality
Yellow
River.
In
with
increasing
replenishment,
River
gradually
increased,
leading
most
significant
degree
improvement.
increases
had
little
effect
on
which
attributable
balance
between
internal
pollutants
(lake
water-sediment),
internal-external
water-irrigation
return
flow
+
water).
On
premise
quality,
eutrophication
control
as
management
goal,
optimal
would
approximately
10.58
×10
Язык: Английский
Evidence on the exposure Index’s substitution effect in assessing brook pollution risk in urban–rural fringe
Ecological Indicators,
Год журнала:
2024,
Номер
160, С. 111910 - 111910
Опубликована: Март 1, 2024
Brooks
are
significant
ecological
sources
and
migration
channels
of
material
flow
as
well
energy
in
urban–rural
fringes.
Despite
their
significance,
the
absence
monitoring
data
poses
challenges
assessing
brook
pollution
risk.
Taking
Muli
Brook
an
example,
a
spatiotemporal
variability
water
quality
was
revealed
through
sample
collection
chemistry
analysis.
We
reveal
then
developed
Exposure
Index
(EPI),
verifying
its
substitution
effect
Our
findings
demonstrate
downward
trend
from
2020
to
2022,
with
exceptions
dissolved
oxygen
(DO)
pH.
Notably,
more
severe
is
observed
during
spring
summer,
influenced
by
seasonal
production
activities
extreme
weather
events.
diminishing
disparity
near
urban
areas,
cumulative
influence
upstream
pollutants
outweighs
that
surrounding
human
activities.
Stronger
associations
between
risks
area
EPI
were
observed,
compared
those
construction
land
farm
land.
In
conclusion,
emerges
valuable
tool
for
fringes,
offering
precise
insights
into
habitat
characteristics,
especially
consistent
data.
Язык: Английский
Variation of the sediment denitrifying bacterial community in a floodplain lake (Poyang Lake, China) during the wet, mid-dry and dry seasons
Hydrobiologia,
Год журнала:
2024,
Номер
851(20), С. 5023 - 5037
Опубликована: Авг. 3, 2024
Язык: Английский
A comparative investigation of the biodiversity, assembly, and interaction of epiphytic and epipelic biofilms in shallow lakes from four geographical zones
Process Safety and Environmental Protection,
Год журнала:
2024,
Номер
191, С. 1956 - 1967
Опубликована: Сен. 27, 2024
Язык: Английский
Are you filtering enough? Unveiling the impact of water sample volumes on eukaryotic microbial community in freshwater lakes
Journal of Freshwater Ecology,
Год журнала:
2024,
Номер
39(1)
Опубликована: Окт. 15, 2024
The
appropriate
volume
of
filtered
water
samples
is
crucial
for
accurately
reflecting
microbial
community
characteristics.
Previous
research
has
shown
that
changes
in
sample
volumes
significantly
affect
bacterial
diversity
and
the
relative
abundance
dominant
taxa
marine
environments.
However,
specific
impact
on
freshwater
structure,
particularly
eukaryotic
microorganisms,
remains
unclear.
To
address
this
gap,
we
collected
from
eutrophic
Lake
Taihu
mesotrophic
Bosten.
We
through
0.2
μm
filters
using
ranging
0.1
to
2
L
3.2
Analysis
18S
rRNA
gene
amplicons
revealed
variations
affected
diversity,
composition
microorganisms.
In
light
these
findings,
recommend
a
approximately
aquatic
ecosystems
0.8
analyses.
These
recommendations
underscore
importance
selecting
ensure
representative
reliable
results
study
microorganisms
ecosystems.
Язык: Английский