Landscape Ecology,
Journal Year:
2023,
Volume and Issue:
38(4), P. 949 - 965
Published: Jan. 6, 2023
Abstract
Context
Human-induced
changes
in
landscape
structure
are
among
the
main
causes
of
biodiversity
loss.
Despite
their
important
contribution
to
and
ecosystem
functioning,
microbes—and
particularly
protists—remain
spatially
understudied.
Soil
microbiota
most
often
driven
by
local
soil
properties,
but
influence
surrounding
is
rarely
assessed.
Objectives
We
assessed
effect
on
protist
alpha
beta
diversity
meadows
western
Swiss
Alps.
Methods
sampled
178
plots
along
an
elevation
gradient
representing
a
broad
range
environmental
conditions
land-use.
measured
around
each
plot
at
5
successive
spatial
scales
(i.e.
neighbourhood
windows
increasing
radius,
ranging
from
100
2000
m
plot).
investigated
as
function
structure,
geographic
distance.
Results
Landscape
structures,
especially
percentage
meadows,
forests,
or
open
habitats,
played
key
role
for
diversity.
The
importance
was
comparable
that
variables,
increased
with
size
window
considered.
Conclusions
Our
results
suggest
dispersal
neighbouring
habitats
driver
which
highlight
landscape-scale
assembly
mechanisms
microbial
emerges
communities
has
profound
implications
our
understanding
consequences
land-use
change
associated
functions.
Molecular Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
ABSTRACT
Natural
restoration
is
an
effective
approach
for
restoring
degraded
ecosystems,
yet
the
successional
patterns
and
assembly
mechanisms
of
aboveground
(litter
layer)
belowground
(topsoil)
microbial
communities
remain
poorly
understood.
We
applied
niche
conservatism
framework
to
investigate
partitioning,
community
processes
in
litter
topsoil
layers
during
long‐term
vegetation
southwestern
China.
The
results
showed
that,
succession,
potential
source
layer
gradually
shifted
from
being
dominated
by
litter.
Fungal
had
a
significantly
higher
proportion
external
immigrants
(>
80%)
than
bacteria
40%)
archaea
(<
20%).
During
bacterial
fungal
underwent
differentiation,
displaying
divergent
succession
pattern,
while
archaeal
overlap,
following
convergent
pattern
driven
stochastic
processes.
Additionally,
dispersal
rate
(m)
β‐diversity
turnover
(slope)
species
were
lower
topsoil,
with
more
influenced
deterministic
This
study
reveals
that
habitat
specialisation
imposes
stronger
filtering
effects
on
colonisation
most
groups,
particularly
communities,
highlighting
role
strategy
differentiation
shaping
communities.
Environmental Science and Ecotechnology,
Journal Year:
2025,
Volume and Issue:
unknown, P. 100561 - 100561
Published: March 1, 2025
Anaerobic
biological
decomposition
of
organic
matter
is
ubiquitous
in
Nature
wherever
anaerobic
environments
prevail,
and
catalysed
by
hydrolytic,
fermentative,
acetogenic,
methanogenic,
various
other
groups.
It
also
harnessed
innovative
ways
engineered
systems
that
may
rely
on
small
(0.1-4.0
mm),
spherical,
granules.
These
biofilms
are
crucial
to
the
operational
success
a
range
widely
applied
engineered-ecosystems
designed
for
wastewater
treatment.
The
structure
function
granule
microbiomes
underpin
their
utility.
Here,
granules
were
separated
into
ten
size
fractions
(proxies
age),
hypothesizing
'young'
larger
ones
'old'.
Gradients
observed
across
terms
volatile
solids,
density,
settleability,
biofilm
morphology,
methanogenic
activity,
profiles
extracellular
polymeric
substances,
suggesting
ongoing
development
physico-chemical
characteristics
as
develop.
Short-read
amplicon
sequencing
indicated
negative
relationship
between
community
diversity.
Furthermore,
increased,
archaea
dominated
microbiome.
Small
found
harbour
sub-group
highly
specific
taxa,
identification
generalists
specialists
point
substantial
resilience
findings
this
study
indicate
opportunities
precision
management
treatment
systems.
They
suggest
an
important
indicator
aggregate
utility
-
may,
indeed,
determine
many
both
individual-granule
overall
system.
Landscape Ecology,
Journal Year:
2023,
Volume and Issue:
38(4), P. 949 - 965
Published: Jan. 6, 2023
Abstract
Context
Human-induced
changes
in
landscape
structure
are
among
the
main
causes
of
biodiversity
loss.
Despite
their
important
contribution
to
and
ecosystem
functioning,
microbes—and
particularly
protists—remain
spatially
understudied.
Soil
microbiota
most
often
driven
by
local
soil
properties,
but
influence
surrounding
is
rarely
assessed.
Objectives
We
assessed
effect
on
protist
alpha
beta
diversity
meadows
western
Swiss
Alps.
Methods
sampled
178
plots
along
an
elevation
gradient
representing
a
broad
range
environmental
conditions
land-use.
measured
around
each
plot
at
5
successive
spatial
scales
(i.e.
neighbourhood
windows
increasing
radius,
ranging
from
100
2000
m
plot).
investigated
as
function
structure,
geographic
distance.
Results
Landscape
structures,
especially
percentage
meadows,
forests,
or
open
habitats,
played
key
role
for
diversity.
The
importance
was
comparable
that
variables,
increased
with
size
window
considered.
Conclusions
Our
results
suggest
dispersal
neighbouring
habitats
driver
which
highlight
landscape-scale
assembly
mechanisms
microbial
emerges
communities
has
profound
implications
our
understanding
consequences
land-use
change
associated
functions.
