New Phytologist,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 11, 2024
Elton's
biotic
resistance
hypothesis
predicts
that
biodiversity
can
resist
the
establishment
of
invasive
plants.
However,
whether
and
how
within-species
diversity
mediates
impacts
successfully
established
invaders
is
poorly
understood,
particularly
in
face
climate
change.
We
used
an
experimental
system
to
test
effect
intraspecific
a
native
foundation
species,
Scirpus
mariqueter,
on
soil-legacy
global
plant
invader,
Spartina
alterniflora,
under
well-watered
drought
conditions.
found
more
diverse
populations
buffered
against
negative
invader
plant.
This
was
due
complementarity
triggered
by
invader-shaped
soil
biota,
emerged
both
Compared
with
previous
finding
reduce
performance
through
feedbacks,
this
study
provides
further
evidence
it
helps
mitigate
soil-derived
invader.
These
findings
together
emphasize
need
for
management
measures
promote
restore
changing
world.
Journal of Ecology,
Journal Year:
2024,
Volume and Issue:
112(7), P. 1444 - 1457
Published: April 29, 2024
Abstract
The
ecological
consequences
of
microplastic
pollution
for
plants
remain
largely
unknown,
and
the
few
studies
that
tested
effects
usually
focused
on
a
single
type
plant
species.
However,
most
will
be
exposed
to
multiple
types
simultaneously,
may
vary
among
To
test
diversity
plants,
we
grew
eight
invasive
native
species
in
pots
with
substrate
polluted
0,
1,
3
6
microplastics.
We
found
growth
suppression
by
became
stronger
number
were
to.
This
tended
particularly
case
species,
as
their
biomass
advantage
over
natives
diminished
types.
responses
coincided
positive
effect
root
allocation
thickness,
which
was
also
than
In
addition,
results
hierarchical
diversity–interaction
models
suggest
negative
impact
total
influenced
both
identities
certain
strong
pairwise
interactions.
contrast,
determined
solely
identities.
Synthesis
.
Our
multispecies
study
thus
shows
first
time
increase
tentative
evidence
impacts
more
pronounced
compared
this
might
due
differences
thickness.
Ecology,
Journal Year:
2023,
Volume and Issue:
104(10)
Published: Aug. 23, 2023
A
fundamental
question
in
ecology
is
which
species
will
prevail
over
others
amid
changes
both
environmental
mean
conditions
and
their
variability.
Although
the
widely
accepted
fluctuating
resource
hypothesis
predicts
that
increases
availability
variability
therein
promote
nonnative
plant
invasion,
it
remains
unclear
to
what
extent
these
effects
might
be
mediated
by
soil
microbes.
We
grew
eight
invasive
as
target
plants
pot-mesocosms
planted
with
five
different
synthetic
native
communities
competitors,
assigned
them
combinations
of
two
nutrient-fluctuation
(constant
vs.
pulsed),
nutrient-availability
(low
high)
soil-microbe
(living
sterilized)
treatments.
found
when
sterilized
soil,
nutrient
fluctuation
promoted
dominance
under
overall
low
availability,
whereas
had
minimal
effect
high
availability.
In
contrast,
living
rather
than
Analysis
microbial
community
suggests
this
reflect
strongly
increased
relative
abundance
most
dominant
pathogenic
fungal
family
or
genus
while
decreasing
Our
findings
are
first
indicate
besides
its
direct
effect,
could
also
indirectly
affect
invasion
via
communities.
Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Jan. 1, 2024
Abstract
The
invasion
of
alien
plant
species
threatens
the
composition
and
diversity
native
communities.
However,
invasiveness
plants
resilience
communities
are
dependent
on
interactions
between
biotic
abiotic
factors,
such
as
natural
enemies
nutrient
availability.
In
our
study,
we
simulated
nine
invasive
into
using
two
levels
availability
suppression
enemies.
We
evaluated
effect
factors
response
target
resistance
to
invasion.
results
showed
that
presence
(enemy
release)
increased
biomass
proportion
while
decreasing
in
absence
addition.
Furthermore,
also
found
negative
enemy
evenness
community
root‐to‐shoot
ratio
was
greatest
under
Therefore,
nutrient‐poor
might
promote
success
communities,
whereas
addition
can
better
enhance
Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
14(5)
Published: May 1, 2024
Invasive
grasses
cause
devastating
losses
to
biodiversity
and
ecosystem
function
directly
indirectly
by
altering
processes.
Escape
from
natural
enemies,
plant-plant
competition,
variable
resource
availability
provide
frameworks
for
understanding
invasion.
However,
we
lack
a
clear
of
how
stressors
interact
in
their
native
range
regulate
invasiveness.
In
this
study,
reduced
diverse
guilds
enemies
plant
competitors
the
highly
invasive
buffelgrass
across
precipitation
gradient
throughout
major
climatic
shifts
Laikipia,
Kenya.
To
do
this,
used
long-term
ungulate
exclosure
experiment
design
with
nested
treatments
that
(1)
competition
through
clipping,
(2)
insects
systemic
insecticide,
(3)
fungal
associates
fungicide
application.
Additionally,
measured
interaction
ungulates
on
two
stem-boring
insect
species
feeding
buffelgrass.
Finally,
multiyear
smut
fungus
outbreak.
Our
findings
suggest
exhibits
qualities
when
released
group
its
range.
We
show
alter
productivity
patterns.
addition,
interspecific
decreased
basal
area
buffelgrass,
suggesting
biotic
resistance
mediates
dominance
home
Surprisingly,
insecticides
fungicides
did
not
impact
production
or
reproduction,
perhaps
because
other
filled
niche
space
these
systems.
For
example,
absence
ungulates,
showed
an
increase
host-specific
stem-galling
insects,
where
compensated
use.
documented
outbreak
2020
2021,
corresponding
patterns
caused
shifting
Indian
Ocean
Dipole.
conclusion,
observed
reducing
certain
interactions
increased
properties
related
Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
14(5)
Published: May 1, 2024
Abstract
Understanding
the
relationship
between
plant
diversity
and
invasibility
is
essential
in
invasion
ecology.
Species‐rich
communities
are
hypothesized
to
be
more
resistant
invasions
than
species‐poor
communities.
However,
while
soil
microorganisms
play
a
crucial
role
regulating
this
diversity–invasibility
relationship,
effects
of
competition
mode
nutrient
status
on
their
remain
unclear.
To
address
this,
we
conducted
two‐stage
greenhouse
experiment.
Soils
were
first
conditioned
by
growing
nine
native
species
separately
them
for
1
year,
then
mixed
various
configurations
with
soils
using
one,
three,
or
six
species,
respectively.
Next,
inoculated
into
sterilized
substrate
planted
alien
Rhus
typhina
Ailanthus
altissima
as
test
plants.
We
set
up
two
modes
(intraspecific
interspecific)
levels
(fertilization
slow‐release
fertilizer
nonfertilization).
Under
intraspecific
competition,
regardless
fertilization,
biomass
was
higher
species.
By
contrast,
under
interspecific
increased
without
fertilization
but
remained
stable
Analysis
microbes
suggests
that
pathogens
symbiotic
fungi
diverse
influenced
R.
growth,
which
varied
status.
Our
findings
suggest
microbiome
pivotal
mediating
influence
varies
according
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: May 15, 2024
Ageratina
adenophora
can
enhance
its
invasive
ability
by
using
beneficial
rhizosphere
bacteria.
Bacillus
cereus
is
able
to
promote
plant
growth
and
provide
a
positive
feedback
effect
A.
.
However,
the
interaction
between
B.
under
influence
of
native
polyphagous
insect
feeding
still
unclear.
In
this
study,
Eupatorium
lindleyanum
,
local
species
closely
related
was
used
as
control,
aimed
compare
content
in
roots
soil
after
different
densities
Aphis
gossypii
feeding,
then
investigated
variations
population
characteristics
addition
The
result
showed
that
root
increased
significantly
compared
with
plants,
which
also
led
change
α-diversity
β-diversity
bacterial
community,
well
increase
nitrate
nitrogen
(NO
3
–
N)
content.
B.cereus
could
inhibit
on
ammonium
(NH
4
+
-N)
soil.
Our
research
demonstrated
enhances
resist
natural
enemy
increasing
accumulating
other
bacteria,
means
microorganisms
help
plants
defend
themselves
against
enemies
regulating
environment.
