Sparse species interactions reproduce abundance correlation patterns in microbial communities
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(5)
Published: Jan. 24, 2024
During
the
last
decades,
macroecology
has
identified
broad-scale
patterns
of
abundances
and
diversity
microbial
communities
put
forward
some
potential
explanations
for
them.
However,
these
advances
are
not
paralleled
by
a
full
understanding
dynamical
processes
behind
In
particular,
abundance
fluctuations
different
species
found
to
be
correlated,
both
across
time
in
metagenomic
samples.
Reproducing
such
correlations
through
appropriate
population
models
remains
an
open
challenge.
The
present
paper
tackles
this
problem
points
sparse
interactions
as
necessary
mechanism
account
Specifically,
we
discuss
several
possibilities
include
recognize
Lotka-Volterra
constants
successful
ansatz.
For
this,
design
Bayesian
inference
algorithm
extract
sets
interaction
able
reproduce
empirical
probability
distributions
pairwise
diverse
biomes.
Importantly,
inferred
still
well-known
single-species
macroecological
concerning
communities.
Endorsed
agreement
with
empirically
observed
phenomenology,
our
analyses
provide
insights
into
properties
networks
interactions,
revealing
that
sparsity
is
crucial
feature.
Language: Английский
Investigating macroecological patterns in coarse-grained microbial communities using the stochastic logistic model of growth
eLife,
Journal Year:
2024,
Volume and Issue:
12
Published: Jan. 22, 2024
The
structure
and
diversity
of
microbial
communities
are
intrinsically
hierarchical
due
to
the
shared
evolutionary
history
their
constituents.
This
is
typically
captured
through
taxonomic
assignment
phylogenetic
reconstruction,
sources
information
that
frequently
used
group
microbes
into
higher
levels
organization
in
experimental
natural
communities.
Connecting
community
joint
ecological
dynamics
abundances
these
groups
a
central
problem
ecology.
However,
how
depends
on
scale
observation
at
which
defined
has
never
been
systematically
examined.
Here,
we
macroecological
approach
quantitatively
characterize
among
disparate
environments
across
scales.
We
found
measures
biodiversity
given
can
be
consistently
predicted
using
minimal
model
ecology,
Stochastic
Logistic
Model
growth
(SLM).
result
suggests
SLM
more
appropriate
null-model
for
than
alternatives
such
as
Unified
Neutral
Theory
Biodiversity.
Extending
within-scale
results,
examined
relationship
between
calculated
different
scales
(e.g.
genus
vs.
family),
an
empirical
pattern
previously
evaluated
context
Diversity
Begets
(DBD)
hypothesis
(Madi
et
al.,
2020).
richness
estimates
assuming
independence
members,
demonstrating
DBD
sufficiently
explained
null
Contrastingly,
only
by
including
correlations
members
consequence
interactions)
predict
results
this
study
novel
patterns
establish
sharp
demarcation
recently
proposed
not
affected
interactions.
Language: Английский
The characteristics of intestinal microflora in infants with rotavirus enteritis, changes in microflora before and after treatment and their clinical values
Qingpi Yan,
No information about this author
Yuanyuan Chen,
No information about this author
E-Bin Gao
No information about this author
et al.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 5, 2025
Rotavirus
(RV)
is
a
leading
pathogen
causing
diarrhea
in
children.
In
this
study,
total
of
51
fecal
samples
from
children
with
RV
enteritis,
29
post-treatment
samples,
and
38
age-matched
healthy
controls
were
collected.
Microbial
DNA
was
isolated
the
followed
by
high
throughput
Illumina
sequencing
targeting
16
S
rRNA
gene.
Compared
to
group,
RV-infected
group
exhibited
reduced
microbial
diversity.
Both
groups
shared
Firmicutes
as
dominant
phylum.
Additionally,
abundance
Proteobacteria
increased
significantly
group.
At
genus
level,
among
top
50
most
abundant
genera,
34
showed
significant
differences,
these
differential
genera
correlating
certain
clinical
indicators
such
dehydration
levels
C-reactive
protein
(CRP).
Notably,
there
no
differences
microbiota
before
after
treatment
Only
8.82%
(3/34)
recovery
trend
towards
state.
This
study
enhances
understanding
how
infection
alters
gut
structure
provides
scientific
basis
for
improving
diagnosis
strategies.
Language: Английский
Macroecological patterns in experimental microbial communities
PLoS Computational Biology,
Journal Year:
2025,
Volume and Issue:
21(5), P. e1013044 - e1013044
Published: May 8, 2025
Ecology
has
historically
benefited
from
the
characterization
of
statistical
patterns
biodiversity
within
and
across
communities,
an
approach
known
as
macroecology.
Within
microbial
ecology,
macroecological
approaches
have
identified
universal
diversity
abundance
that
can
be
captured
by
effective
models.
Experimentation
simultaneously
played
a
crucial
role,
advent
high-replication
community
time-series
allowed
researchers
to
investigate
underlying
ecological
forces.
However,
there
remains
gap
between
experiments
performed
in
laboratory
documented
natural
systems,
we
do
not
know
whether
these
recapitulated
lab
experimental
manipulations
produce
effects.
This
work
aims
at
bridging
ecology
Using
time-series,
demonstrate
observed
nature
exist
setting,
despite
controlled
conditions,
unified
under
Stochastic
Logistic
Model
growth
(SLM).
We
found
demographic
(e.g.,
migration)
impact
patterns.
By
modifying
SLM
incorporate
said
alongside
details
sampling),
obtain
predictions
are
consistent
with
outcomes.
combining
models,
macroecology
viewed
predictive
discipline.
Language: Английский
Investigating macroecological patterns in coarse-grained microbial communities using the stochastic logistic model of growth
eLife,
Journal Year:
2023,
Volume and Issue:
12
Published: Aug. 21, 2023
The
structure
and
diversity
of
microbial
communities
are
intrinsically
hierarchical
due
to
the
shared
evolutionary
history
their
constituents.
This
is
typically
captured
through
taxonomic
assignment
phylogenetic
reconstruction,
sources
information
that
frequently
used
group
microbes
into
higher
levels
organization
in
experimental
natural
communities.
Connecting
community
joint
ecological
dynamics
abundances
these
groups
a
central
problem
ecology.
However,
how
depends
on
scale
observation
at
which
defined
has
never
been
systematically
examined.
Here,
we
macroecological
approach
quantitatively
characterize
among
disparate
environments
across
scales.
We
found
measures
biodiversity
given
can
be
consistently
predicted
using
minimal
model
ecology,
Stochastic
Logistic
Model
growth
(SLM).
result
suggests
SLM
more
appropriate
null-model
for
than
alternatives
such
as
Unified
Neutral
Theory
Biodiversity.
Extending
within-scale
results,
examined
relationship
between
calculated
different
scales
(e.g.
genus
vs.
family),
an
empirical
pattern
previously
evaluated
context
Diversity
Begets
(DBD)
hypothesis
(Madi
et
al.,
2020).
richness
estimates
assuming
independence
members,
demonstrating
DBD
sufficiently
explained
null
Contrastingly,
only
by
including
correlations
members
consequence
interactions)
predict
results
this
study
novel
patterns
establish
sharp
demarcation
recently
proposed
not
affected
interactions.
Language: Английский
Investigating macroecological patterns in coarse-grained microbial communities using the stochastic logistic model of growth
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: March 2, 2023
Abstract
The
structure
and
diversity
of
microbial
communities
is
intrinsically
hierarchical
due
to
the
shared
evolutionary
history
their
constituents.
This
typically
captured
through
taxonomic
assignment
phylogenetic
reconstruction,
sources
information
that
are
frequently
used
group
microbes
into
higher
levels
organization
in
experimental
natural
communities.
Connecting
community
joint
ecological
dynamics
abundances
these
groups
a
central
problem
ecology.
However,
how
depends
on
scale
observation
at
which
defined
has
never
been
systematically
examined.
Here,
we
macroecological
approach
quantitatively
characterize
among
disparate
environments
across
scales.
We
found
measures
biodiversity
given
can
be
consistently
predicted
using
minimal
model
ecology,
Stochastic
Logistic
Model
growth
(SLM).
result
suggests
SLM
more
appropriate
null-model
for
than
alternatives
such
as
Unified
Neutral
Theory
Biodiversity.
Extending
within-scale
results,
examined
relationship
between
calculated
different
scales
(e.g.,
genus
vs.
family),
an
empirical
pattern
by
Diversity
Begets
(DBD)
hypothesis.
richness
estimates
assuming
independence
members.Contrastingly,
only
including
correlations
members
consequence
interactions)
predict
results
this
study
novel
patterns
establish
sharp
demarcation
recently
proposed
not
affected
interactions.
Language: Английский
Macroecological patterns in experimental microbial communities
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: July 26, 2023
Abstract
Ecology
has
historically
benefited
from
the
characterization
of
statistical
patterns
biodiversity
within
and
across
communities,
an
approach
known
as
macroecology.
Within
microbial
ecology,
macroecological
approaches
have
identified
universal
diversity
abundance
that
can
be
captured
by
effective
models.
Experimentation
simultaneously
played
a
crucial
role,
advent
high-replication
community
time-series
allowed
researchers
to
investigate
underlying
ecological
forces.
However,
there
remains
gap
between
experiments
performed
in
laboratory
documented
natural
systems,
we
do
not
know
whether
these
recapitulated
lab
experimental
manipulations
produce
effects.
This
work
aims
at
bridging
ecology
Using
time-series,
demonstrate
observed
nature
exist
setting,
despite
controlled
conditions,
unified
under
Stochastic
Logistic
Model
growth
(SLM).
We
find
demographic
(e.g.,
migration)
impact
patterns.
By
modifying
SLM
incorporate
said
alongside
details
sampling),
obtain
predictions
are
consistent
with
outcomes.
combining
models,
macroecology
viewed
predictive
discipline.
Language: Английский
Investigating macroecological patterns in coarse-grained microbial communities using the stochastic logistic model of growth
Published: Dec. 21, 2023
The
structure
and
diversity
of
microbial
communities
is
intrinsically
hierarchical
due
to
the
shared
evolutionary
history
their
constituents.
This
typically
captured
through
taxonomic
assignment
phylogenetic
reconstruction,
sources
information
that
are
frequently
used
group
microbes
into
higher
levels
organization
in
experimental
natural
communities.
Connecting
community
joint
ecological
dynamics
abundances
these
groups
a
central
problem
ecology.
However,
how
depends
on
scale
observation
at
which
defined
has
never
been
systematically
examined.
Here,
we
macroecological
approach
quantitatively
characterize
among
disparate
environments
across
scales.
We
found
measures
biodiversity
given
can
be
consistently
predicted
using
minimal
model
ecology,
Stochastic
Logistic
Model
growth
(SLM).
result
suggests
SLM
more
appropriate
null-model
for
than
alternatives
such
as
Unified
Neutral
Theory
Biodiversity.
Extending
within-scale
results,
examined
relationship
between
calculated
different
scales
(e.g.,
genus
vs.
family),
an
empirical
pattern
by
Diversity
Begets
(DBD)
hypothesis.
richness
estimates
assuming
independence
members.Contrastingly,
only
including
correlations
members
consequence
interactions)
predict
results
this
study
novel
patterns
establish
sharp
demarcation
recently
proposed
not
affected
interactions.
Language: Английский