Quantifying the spatial impact of an invasive Acacia on ecosystem functioning using remote sensing
Ecological Indicators,
Journal Year:
2024,
Volume and Issue:
170, P. 112928 - 112928
Published: Dec. 16, 2024
Language: Английский
The seeds of invasion: a comparison of endophytic seed bacteria of Acacia longifolia between its native and invasive ranges
Symbiosis,
Journal Year:
2024,
Volume and Issue:
93(1), P. 29 - 42
Published: April 13, 2024
Abstract
Acacia
longifolia
is
an
aggressive
invader
in
Mediterranean-type
ecosystems
severely
impacting
biodiversity
and
ecosystem
functions.
The
species’
invasiveness
has
been
linked
to
its
ability
thrive
nutrient
poor
soils,
high
seed
production,
quick
establishment
after
fire.
In
this
study,
we
identify
compare
the
bacterial
endophytes
of
A.
seeds
collected
from
populations
native
(Australia)
invasive
(Portugal)
ranges.
For
this,
characterised
morphology
(length,
width,
weight)
two
sites
each
range
isolated
cultivated
bacteria
seeds.
DNA
fingerprinting
cluster
analyses
revealed
slightly
higher,
distinct,
diversity
associated
with
comparison
those
populations.
Sequencing
16S
rDNA
gene
identified
119
isolates
15
genera,
Curtobacterium
strains
being
common
both
Several
differences
genera
were
found
among
ranges
sites:
Dermacoccus
,
Frigoribacterium,
Kocuria
Pantoea
Phyllobacterium
taxa
unique
populations,
while
Brevundimonas
Microbacterium,
Rhizobium
Sphingomonas
only
genus
Paraburkholderia
occurred
all
invasive-range
but
was
not
native-range.
Bacillus
Paenibacillus
co-occurred
invaded
sites,
simultaneous
presence
native-range
We
propose
that
present
may
be
important
players
for
longifolia,
due
their
role
as
plant
growth
promoters,
providing
extra
capabilities
helping
acacia
expansion.
Language: Английский
Galling by Trichilogaster sp. suppresses the growth of Acacia auriculiformis saplings
Biological Control,
Journal Year:
2024,
Volume and Issue:
197, P. 105590 - 105590
Published: Aug. 4, 2024
Pre-release
efficacy
assessments
(PREAs)
are
used
in
weed
biological
control
to
predict
the
potential
impact
of
prospective
agents.
These
enable
most
damaging
agents
be
prioritised
for
host
testing
and
release.
Further,
inclusion
this
information
release
applications
enables
regulators
consider
benefits
an
agent
alongside
any
risks.
We
conducted
a
PREA
evaluate
Trichilogaster
sp.,
galling
wasp
that
is
being
considered
Florida
invasive
earleaf
acacia,
Acacia
auriculiformis.
This
species
multivoltine
primarily
galls
vegetative
buds.
performed
glasshouse
trial
exposing
A.
auriculiformis
saplings
one
generation
gall
determine
effect
on
plant
performance.
monitored
growth
parameters
development
exposed
unexposed
every
three
weeks
twelve
weeks.
Above-ground
below-ground
biomass
were
measured
at
completion
trial.
One
reduced
sapling
height
by
37.44
%
(±5.57),
above-ground
32.19
(±4.00),
38.26
(±7.47).
Galling
also
significantly
other
key
stem
weight,
leaf
total
branch
length,
number
nodes,
shoot
tips,
leaves.
damages
juvenile
plants
could
effective
classical
if
released
Florida,
especially
it
not
limited
specialist
third
trophic
level.
Language: Английский