Environmental Microbiology Reports,
Год журнала:
2023,
Номер
15(4), С. 298 - 307
Опубликована: Март 29, 2023
Abstract
Protists
occupy
multiple
trophic
positions
in
soil
food
webs
and
significantly
contribute
to
organic
matter
decomposition
biogeochemical
cycling.
can
ingest
bacteria
fungi
as
main
sources
while
being
subjected
predation
of
invertebrates,
but
our
understanding
how
bottom‐up
top‐down
regulations
structure
protists
natural
habitats
is
limited.
Here,
we
disentangle
the
effects
diversity
settings
across
northern
eastern
Australia.
Bacterial
invertebrate
were
identified
important
drivers
functional
groups
protists.
Moreover,
compositions
protistan
taxonomic
better
predicted
by
fungi,
than
invertebrates.
There
strong
interconnections
between
organismic
network
analysis.
Altogether,
study
provided
new
evidence
that,
control
played
an
role
shaping
protist
community
structure,
which
be
derived
from
feeding
preferences
on
microbial
prey,
their
intimate
relationships
functioning
or
environmental
adaptation.
Our
findings
advance
knowledge
about
impacts
different
key
communities,
with
implications
for
ecosystem
functions
services.
Agricultural
expansion
is
among
the
main
threats
to
biodiversity
and
functions
of
tropical
ecosystems.
It
has
been
shown
that
conversion
rainforest
into
plantations
erodes
biodiversity,
but
further
consequences
for
food-web
structure
energetics
belowground
communities
remains
little
explored.
We
used
a
unique
combination
stable
isotope
analysis
analyze
in
comprehensive
way
oil
palm
rubber
on
channeling
energy
through
soil
animal
food
webs
Sumatra,
Indonesia.
Across
groups
studied,
most
taxa
had
lower
litter-calibrated
Δ
13
C
values
than
rainforests,
suggesting
they
switched
freshly-fixed
plant
carbon
('fast'
channeling)
from
detrital
pathway
('slow'
rainforests.
These
shifts
led
changes
isotopic
divergence,
dispersion,
evenness,
uniqueness.
However,
earthworms
as
major
detritivores
stayed
unchanged
their
trophic
niche
monopolized
plantations,
resulting
similar
energetic
metrics
across
land-use
systems.
Functional
diversity
were
associated
with
reduced
amount
litter,
tree
density,
species
richness
providing
guidelines
how
improve
complexity
webs.
Our
results
highlight
strong
restructuring
threatening
functioning
ecosystem
stability
long
term.
Agricultural Systems,
Год журнала:
2023,
Номер
208, С. 103659 - 103659
Опубликована: Апрель 15, 2023
Agricultural
intensification
contributes
to
global
food
security
and
well-being
by
supplying
the
demand
of
a
growing
human
population.
However,
ongoing
land-use
change
seriously
affect
abundance,
diversity
distribution
species,
besides
many
other
impacts,
thereby
threatening
functioning
ecosystems
worldwide.
Despite
accumulating
evidence
that
current
agricultural
model
is
unsustainable,
we
are
far
from
understanding
consequences
functional
loss
for
ecosystem
service
supply
potential
long-term
threats
well-being.
In
this
review,
propose
conceptual
framework
understand
relationships
between
also
considers
agroecosystem
health.
To
end,
identify
most
commonly
assumed
linking
regulating
provisioning
services
their
importance
well-being,
emphasising
serious
knowledge
gaps
in
individual
pathways
framework.
A
consortium
formed
an
international
panel
experts
different
disciplines
including
diversity,
health
compiled
275
articles.
Members
proposed
literature
exemplify
each
specific
aspect
text,
accordance
with
his/her
field
expertise.
The
guideline
all
was
focus
mostly
(38%
references
last
5
years
66%
decade),
special
interest
reviews
synthesis
articles
(42%
references),
as
well
meta-analyses
studies
(10%
references).
factors
influence
extremely
complex,
involving
both
disservices
related
management
environmental
conditions.
population
needs
sustainable
resilient
agroecosystems
concerted
effort
needed
fundamentally
redesign
practices
feed
without
further
jeopardising
quality
life
future
generations.
We
highlight
effects
ecological
on
plant
animal
communities,
resulting
ultimately
developed
researchers
policy
makers
highlighting
need
holistic
approach
impacts
Finally,
document
major
gap
due
lack
any
focusing
full
pathway
Geoderma,
Год журнала:
2023,
Номер
432, С. 116395 - 116395
Опубликована: Фев. 26, 2023
It
is
hypothesized
that
soil
animal
diversity
supported
by
environmental
and
food
diversity.
Mites
are
the
most
abundant
microarthropods
in
communities
occupy
several
trophic
levels
webs
play
important
role
litter
decomposition
nutrient
cycling.
However,
it
not
clear
if
of
mite
associated
with
quality
corresponding
resources
across
levels.
Here,
we
studied
influences
resource
(plants,
fungi,
nematodes)
abiotic
factors
(litter
attributes)
on
taxonomic
richness
detritivorous,
fungivorous,
predatory
mites
(75
genera
total)
a
subalpine
succession
(grassland,
shrubland,
secondary
forest,
primary
forest)
southwestern
China.
Supporting
our
main
hypothesis,
bulk
community
individual
functional
groups
was
The
total
highest
shrubland
successional
stage,
where
plant
highest,
decreased
late-successional
stages
despite
similar
abundance.
Diversity
fungivorous
positively
nematode
fungal
reached
maximum
at
grassland
stages,
respectively.
detritivorous
different
being
quality.
These
findings
provide
empirical
evidence
supports
general
ecological
theory
mechanisms
support
multitrophic
biodiversity
soils.
Functional Ecology,
Год журнала:
2024,
Номер
38(5), С. 1018 - 1031
Опубликована: Фев. 6, 2024
Abstract
Nutrient
cycling
through
leaf
litter
consumption
is
an
essential
ecological
function
performed
by
macrodetritivorous
invertebrates
such
as
isopods
and
millipedes.
Leaf
rates
can
vary
greatly
depending
on
the
environment,
consumer
identity
traits,
but
generalizations
about
effects
of
plant
traits
macrodetritivore
consumption,
assimilation
growth
are
not
well
established
mostly
indirectly
inferred.
We
conducted
a
systematic
search
global
literature
obtained
456
standardized
measures
from
laboratory
experiments
relative
(RCR),
(RAR)
(RGR)
terrestrial
millipedes,
extracted
56
different
articles.
investigated
if
commonly
measured
functional
groups,
prior
microbial
conditioning
leaves
climatic
conditions
affected
these
rates.
data
TRY
trait
database,
inferred
groups
taxonomic
groupings
information
reported
within
RCR,
RAR
RGR
varied
among
species,
overall,
there
were
no
differences
between
Microbial
increased
RCR.
Plant
group
was
important
predictor
with
eudicot
trees
forbs
being
consumed
in
greater
quantities
than
magnoliid
grasses.
Fresh
N:P
ratio
had
positive
effect
RAR,
N
C:N
negative
RGR,
respectively,
while
variables
weak
three
Our
work
shows
that
(both
those
associated
traits)
exert
strong
resource
processing
macrodetritivores.
Further,
has
large
globally
consistent
suggesting
they
may
consume
little,
any,
freshly
senesced
material
when
microbially
conditioned
available.
results
suggest
that,
where
extremes
temperature
or
precipitation
do
occur,
reflective
food
quality
(leaf
microbe
conditioning)
more
drivers
extrinsic
variables.
Read
free
Plain
Language
Summary
for
this
article
Journal
blog.
Agronomy for Sustainable Development,
Год журнала:
2024,
Номер
44(1)
Опубликована: Фев. 1, 2024
Abstract
Pesticides
threaten
biodiversity,
but
we
know
little
about
how
they
permeate
food
webs.
Few
studies
have
investigated
the
number,
concentration,
and
composition
of
pesticides
in
agroecosystem
webs
even
though
agroecosystems
cover
one-third
Earth’s
land
area.
We
conducted
a
pioneering
study
on
distribution
across
local
(i.e.,
farm)
meta
regional
pool
webs)
within
both
perennial
(
N
=
8)
annual
crops
11),
examining
four
trophic
groups—soil
(primary
resource),
plants
producers),
rodents
(herbivores),
spiders
(predators)—for
presence
multiple
residues,
comparing
these
findings
to
applied
by
farmers
recent
years.
also
undertook
interviews
with
obtain
most
precise
information
pesticide
applications
their
fields.
detected
wide
spectrum
crop
types.
represented
only
small
proportion
all
pesticides,
indicating
that
entered
from
surrounding
landscapes.
Some
had
been
banned
European
Union
several
years
ago,
which
is
highly
alarming.
Trophic
group
mobility
type
drove
number
at
scale,
as
mobile
groups
contained
larger
numbers
(probably
encountering
wider
spectra
pesticides).
At
highest
lowest
diversity
crops.
This
might
be
explained
spiders’
functional
traits
are
selected
different
Insecticides
fungicides
concentrations
mostly
increased
level,
bioaccumulation.
Herbicides
concentration
were
suggesting
(bio)degradation.
As
bioaccumulation
outweighed
(bio)degradation,
overall
level.
Therefore,
was
affected
simultaneously
mechanisms
depended
upon
group,
type,
and,
probably,
landscape.