Ecology,
Journal Year:
2023,
Volume and Issue:
105(2)
Published: Nov. 24, 2023
Abstract
Human‐mediated
dispersal
of
non‐native
earthworms
can
cause
substantial
changes
to
the
functioning
and
composition
ecosystems
previously
earthworm‐free.
Some
these
earthworm
species
have
potential
“geoengineer”
soils
increase
plant
nitrogen
(N)
uptake.
Yet
possible
consequences
increased
N
concentrations
on
rodent
grazing
remains
poorly
understood.
In
this
study,
we
present
findings
from
a
common
garden
experiment
with
two
tundra
communities,
meadow
(forb
dominated)
heath
(shrub
dominated),
half
them
subjected
4
years
presence
(
Lumbricus
spp.
Aporrectodea
spp.).
Within
four
summers,
our
treatment
changed
community
by
increasing
graminoid
density
by,
average,
94%
in
vegetation
49%
meadow.
Rodent
winter
was
more
intense
plants
growing
earthworms,
an
effect
that
coincided
higher
plants,
indicating
palatability.
Even
though
reduced
soil
moisture,
productivity,
as
indicated
greenness
(normalized
difference
index),
not
negatively
impacted.
We
conclude
earthworm‐induced
trophic
interactions
may
fundamentally
alter
ecosystems.
BioScience,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 17, 2025
The
multibillion
dollar
ornamental
plant
trade
benefits
economies
worldwide,
but
shifting
and
rapidly
expanding
globalized
supply
chains
have
exacerbated
complex
environmental,
sustainability,
biosecurity
risks.
We
review
the
environmental
social
risks
of
this
international
trade,
complementing
it
with
analyses
illegal
seizures
contaminant
interception
data
from
Netherlands
United
Kingdom.
show
global
increases
in
expansions
East
Africa
South
America,
highlight
impacts
including
biodiversity
loss,
aquifer
depletion,
pollution,
undermined
access
benefit
sharing,
food
security.
Despite
risk
mitigation
efforts,
showed
considerable
volumes
contaminants
shipments,
taxonomic
identification
was
not
always
possible,
highlighting
uncertainties
assessing
With
high-volume
fast-moving
transit
plants
around
world,
is
essential
that
production
standards
are
improved
on
specific
collected
shared
to
allow
for
mitigation.
The ISME Journal,
Journal Year:
2023,
Volume and Issue:
17(7), P. 1004 - 1014
Published: April 17, 2023
The
earthworm
gut
virome
influences
the
structure
and
function
of
microbiome,
which
in
turn
worm
health
ecological
functions.
However,
despite
its
soil
quality
implications,
it
remains
elusive
how
intestinal
phages
respond
to
different
environmental
stress,
such
as
pollution.
Here
we
used
metagenomics
metatranscriptomics
investigate
interactions
between
their
bacteria
under
benzo[a]pyrene
(BaP)
concentrations.
Low-level
BaP
(0.1
mg
kg-1)
stress
stimulated
microbial
metabolism
(1.74-fold
control),
enhanced
antiphage
defense
system
(n
=
75)
against
infection
(8
phage-host
pairs).
exposure
resulted
highest
proportion
lysogenic
(88%),
prophages
expressed
auxiliary
metabolic
genes
(AMGs)
associated
with
nutrient
transformation
(e.g.,
amino
acid
metabolism).
In
contrast,
high-level
(200
disrupted
suppressed
systems
29),
leading
increase
phage-bacterium
association
(37
pairs)
conversion
lytic
(lysogenic
ratio
declined
43%).
Despite
fluctuating
interactions,
phage-encoded
AMGs
related
antioxidant
pollutant
degradation
were
enriched,
apparently
alleviate
pollution
stress.
Overall,
these
findings
expand
our
knowledge
complex
pollution-stressed
guts,
deepen
understanding
evolutionary
roles
phages.
Annals of the New York Academy of Sciences,
Journal Year:
2022,
Volume and Issue:
1516(1), P. 28 - 47
Published: July 26, 2022
Arctic
terrestrial
herbivores
influence
tundra
carbon
and
nutrient
dynamics
through
their
consumption
of
resources,
waste
production,
habitat-modifying
behaviors.
The
strength
these
effects
is
likely
to
change
spatially
temporally
as
climate
drives
shifts
in
herbivore
abundance,
distribution,
activity
timing.
Here,
we
review
how
consumptive
nonconsumptive
effects.
We
also
present
evidence
for
responses
discuss
may
alter
the
spatial
temporal
distribution
impacts.
Several
current
knowledge
gaps
limit
our
understanding
changing
functional
roles
herbivores;
include
limited
characterization
variability
impacts
activities
cycling
elements
beyond
carbon.
conclude
by
highlighting
approaches
that
will
promote
better
on
ecosystems,
including
integration
into
existing
biogeochemical
models,
new
applications
remote
sensing
techniques,
continued
use
distributed
experiments.
Annual Review of Environment and Resources,
Journal Year:
2021,
Volume and Issue:
46(1), P. 111 - 134
Published: June 17, 2021
Global
climate
warming
disproportionately
affects
high-latitude
and
mountainous
terrestrial
ecosystems.
Warming
is
accompanied
by
permafrost
thaw,
shorter
winters,
earlier
snowmelt,
more
intense
soil
freeze-thaw
cycles,
drier
summers,
longer
fire
seasons.
These
environmental
changes
in
turn
impact
surface
water
groundwater
flow
regimes,
quality,
greenhouse
gas
emissions,
stability,
vegetation
cover,
(micro)biological
communities.
also
facilitates
agricultural
expansion,
urban
growth,
natural
resource
development,
adding
growing
anthropogenic
pressures
to
cold
regions’
landscapes,
health,
biodiversity.
Further
advances
the
predictive
understanding
of
how
critical
zone
processes,
functions,
ecosystem
services
will
continue
respond
land
use
require
multiscale
monitoring
technologies
coupled
with
integrated
observational
modeling
tools.
We
highlight
some
major
challenges,
knowledge
gaps,
opportunities
region
research,
an
emphasis
on
subsurface
processes
responses
both
Biogeosciences,
Journal Year:
2023,
Volume and Issue:
20(10), P. 1979 - 1990
Published: May 30, 2023
Abstract.
Arctic
soils
play
an
important
role
in
Earth's
climate
system,
as
they
store
large
amounts
of
carbon
that,
if
released,
could
strongly
increase
greenhouse
gas
levels
our
atmosphere.
Most
research
to
date
has
focused
on
how
the
turnover
organic
matter
these
is
regulated
by
abiotic
factors,
and
few
studies
have
considered
potential
biotic
regulation.
However,
arctic
are
currently
missing
groups
soil
organisms,
here,
we
highlight
recent
empirical
evidence
that
organisms'
presence
or
absence
key
understanding
predicting
future
feedbacks
from
soils.
We
propose
arrival
organisms
into
may
introduce
“novel
functions”,
resulting
increased
rates
of,
for
example,
nitrification,
methanogenesis,
litter
fragmentation,
bioturbation,
thereby
alleviate
functional
limitations
current
community.
This
alleviation
can
greatly
enhance
decomposition
rates,
parity
with
effects
predicted
due
increasing
temperatures.
base
this
argument
a
series
emerging
experimental
suggesting
dispersal
until-then
absent
micro-,
meso-,
macroorganisms
(i.e.
bacteria
earthworms)
new
regions
newly
thawed
layers
drastically
affect
functioning.
These
observations
make
us
question
view
neglects
organism-driven
“alleviation
effects”
when
between
ecosystems
planet's
climate.
therefore
advocate
updated
framework
which
biota
functions
influence
ecosystem
processes
become
essential
fate
warming
ecosystems.
Journal of Arid Land,
Journal Year:
2023,
Volume and Issue:
15(5), P. 620 - 636
Published: May 1, 2023
Abstract
Soil
faunas
account
for
23%
of
known
animal
species
and
play
a
crucial
role
in
ecosystem
processes
such
as
mineralizing
nutrients,
regulating
microbial
community
composition,
forming
soil
aggregates,
enhancing
primary
productivity.
However,
due
to
global
climate
change,
population
density,
distribution
patterns
fauna
vary.
Understanding
the
responses
major
environmental
change
facilitate
conservation
biodiversity.
Therefore,
review
work
recent
researches
analysing
effects
key
factors
on
fauna,
warming,
drought,
food
quality,
physical-chemical
properties
was
studied.
For
most
species,
warming
may
exert
positive
effect
their
abundance
development,
however,
it
can
inhibit
survival
reproduction
hibernating
species.
Drought
leads
low
porosity
water
holding
capacity,
which
reduces
changes
composition.
also
reduce
coverage
flora
alter
microclimate
surface,
turn
indirectly
abundance.
Climate
elevated
atmospheric
carbon
dioxide
litter
will
force
dietary
choices
(from
higher-quality
foods
poor
quality
foods)
survival.
is
still
predicted
that
enhanced
richness
plant
(or
litter)
mixtures
positively
affect
diversity.
Habitat
loss
caused
by
deterioration
property
factor
affecting
fauna.
We
mainly
discuss
threats
increased
salinity
(a
arid
land)
potential
anthropogenic
disturbance
saline
soils.
The
increase
override
other
favour
habitat
specialists,
leading
negative
Moreover,
we
find
more
studies
are
needed
explore
soils
human
activities.
And
relationship
important
ecological
with
structure,
diversity
needs
be
redefined.
Soil Biology and Biochemistry,
Journal Year:
2023,
Volume and Issue:
180, P. 108965 - 108965
Published: Jan. 23, 2023
The
nutrient-poor
soils
of
Antarctica
are
sensitive
to
change.
Recent
increases
in
the
number
anthropogenic
introductions
mean
that
understanding
impact
non-native
species
on
Antarctic
is
pertinent,
and
essential
for
developing
future
risk
assessments
management
strategies.
Through
comparative
baseline
vegetation,
microbes,
soil
chemistry,
substrate
composition
micro-arthropod
abundance,
this
study
explored
if
there
detectable
terrestrial
ecosystem
impacts
resulting
from
introduction
chironomid
midge
Eretmoptera
murphyi
Signy
Island
maritime
Antarctica.
key
finding
was
E.
likely
driver
an
increase
inorganic
nitrogen
availability
within
which
it
occurs.
When
compared
with
levels
present
influenced
by
native
vertebrate
wildlife
aggregations,
local
nitrate
associated
similar
caused
deposits
seals
giant
petrel
colonies.
Overall,
available
has
increased
three-to
five-fold
colonised
midge,
relative
undisturbed
soils.
This
may
ultimately
rates
decomposition
as
well
plant
communities
Island.