mLife,
Год журнала:
2025,
Номер
4(2), С. 205 - 218
Опубликована: Апрель 1, 2025
Abstract
Microorganisms
dominate
marine
environments
in
the
polar
oceans
and
are
known
to
harbor
greater
diversity
abundance
than
was
once
thought,
yet,
little
is
about
their
biogeographic
distribution
patterns
sediments
at
a
broad
spatial
scale.
In
this
study,
we
conducted
extensive
sampling
of
along
latitudinal
transect
spanning
2500
km
from
Bering
Sea
Arctic
Ocean
investigate
geographical
bacteria,
archaea,
fungi.
Our
findings
revealed
that
community
similarities
bacteria
fungi
decay
similar
rates
with
increasing
distance
(slope:
−0.005
−0.002),
which
much
lower
rate
archaeal
communities
−0.012).
Notably,
microbial
richness
composition
showed
significant
differences
region
75−80°N
compared
other
regions
60−75°N.
Salinity,
temperature,
pH,
ammonium
nitrogen,
total
organic
carbon
key
factors
significantly
affect
variations.
Furthermore,
bacterial
co‐occurrence
networks
more
complex
interactions
but
modularity
fungal
counterparts.
This
study
provides
crucial
insights
into
will
be
critical
for
better
understanding
global
ecological
functions.
npj Biofilms and Microbiomes,
Год журнала:
2024,
Номер
10(1)
Опубликована: Июль 28, 2024
Abstract
Alkaline
lakes
are
extreme
environments
inhabited
by
diverse
microbial
extremophiles.
However,
large-scale
distribution
patterns,
environmental
adaptations,
community
assembly,
and
evolutionary
dynamics
of
communities
remain
largely
underexplored.
This
study
investigated
the
characteristics
on
rare
abundant
taxa
in
alkaline
lake
sediments
west
northwest
China.
We
observed
that
varied
significantly
with
geographical
distance,
while
remained
unaffected
regional
differences.
The
assembly
process
was
influenced
dispersal
limitation,
whilst
were
predominantly
driven
heterogeneous
selection.
Network
analysis
indicated
as
core
species
for
interactions
stability.
Rare
exhibited
higher
speciation
transition
rate
than
taxa,
serving
a
genetic
reservoir
potential
candidates
to
become
abundance
highlighting
their
crucial
role
maintaining
diversity.
These
insights
underscore
significant
influence
ecosystem
biodiversity
stability
lakes.
Water,
Год журнала:
2022,
Номер
14(9), С. 1402 - 1402
Опубликована: Апрель 27, 2022
With
global
warming,
urbanization,
and
the
intensification
of
human
activities,
great
pressures
on
river
ecosystems
have
caused
ecosystem
degradation,
decline
in
habitats
biodiversity,
loss
function.
Ecological
restoration
technologies
(ERTs)
rivers
are
effective
measures
for
improving
habitat
which
has
advantage
recovering
biodiversity
promoting
formation
healthy
rivers.
Several
applications
ERTs,
including
ecological
water
transfer,
fish
passage
construction,
dam
removal/retrofit,
channel
reconfiguration,
geomorphological
restoration,
natural
shoreline
floodplain
reconnection,
revegetation,
etc.,
summarized.
The
classifications
ERTs
highlighted,
aiming
to
distinguish
difference
relationship
between
structure
processes
hydrology,
physics,
geography,
biology.
pros
cons
these
discussed
identify
applicability
limitations
ecosystem.
In
dynamic
river,
interact
with
each
other
keep
balance.
more
helpful
function
contribute
management
health.
Some
proposals
suggested.
Establishing
a
unified
health
evaluation
system
will
help
promote
positive
feedback
further
development
ERTs.
