Molecular Ecology,
Journal Year:
2018,
Volume and Issue:
28(3), P. 528 - 543
Published: Oct. 30, 2018
Tropical
forests
shelter
an
unparalleled
biological
diversity.
The
relative
influence
of
environmental
selection
(i.e.,
abiotic
conditions,
biotic
interactions)
and
stochastic-distance-dependent
neutral
processes
demography,
dispersal)
in
shaping
communities
has
been
extensively
studied
for
various
organisms,
but
rarely
explored
across
a
large
range
body
sizes,
particular
soil
environments.
We
built
detailed
census
the
whole
biota
12-ha
tropical
forest
plot
using
DNA
metabarcoding.
show
that
distribution
19
taxonomic
groups
(ranging
from
microbes
to
mesofauna)
is
primarily
stochastic,
suggesting
are
prominent
drivers
assembly
these
at
this
scale.
also
identify
aluminium,
topography
plant
species
identity
as
weak,
yet
significant
richness
community
composition
bacteria,
protists
lesser
extent
fungi.
Finally,
we
size,
which
determines
scale
organism
perceives
its
environment,
predicted
groups,
with
mesofauna
assemblages
being
more
stochastic
than
microbial
ones.
These
results
suggest
contribution
directly
depends
on
size.
Body
size
hence
important
determinant
rules
ecological
soils
should
be
accounted
spatial
models
food
webs.
Science,
Journal Year:
2017,
Volume and Issue:
356(6345), P. 1389 - 1392
Published: June 30, 2017
Maintaining
tree
diversity
Negative
interaction
among
plant
species
is
known
as
conspecific
negative
density
dependence
(CNDD).
This
ecological
pattern
thought
to
maintain
higher
in
the
tropics.
LaManna
et
al.
tested
this
hypothesis
by
comparing
how
changes
with
intensity
of
local
biotic
interactions
tropical
and
temperate
latitudes
(see
Perspective
Comita).
Stronger
specialized
seem
prevent
erosion
biodiversity
forests,
not
only
limiting
populations
common
species,
but
also
strongly
stabilizing
rare
which
tend
show
CNDD
Science
,
issue
p.
1389
;
see
1328
Journal of Systematics and Evolution,
Journal Year:
2017,
Volume and Issue:
55(4), P. 291 - 307
Published: May 17, 2017
Abstract
DNA
barcodes
have
provided
a
new
biological
tool
for
organismal
biologists
to
increase
their
understanding
of
the
natural
world.
Over
last
decade
four
plant
barcode
markers,
rbcL
,
matK
trnH‐psbA
and
ITS2,
been
developed,
tested,
used
address
basic
questions
in
systematics,
ecology,
evolutionary
biology
conservation,
including
community
assembly,
species
interaction
networks,
taxonomic
discovery,
assessing
priority
areas
environmental
protection.
Forensic
investigators
also
applied
these
regulatory
traffic
endangered
monitoring
commercial
products,
such
as
foods
herbal
supplements.
Major
challenges
ahead
will
focus
on
building
global
library
adopting
genomic
sequencing
technologies
more
efficient
cost‐effective
workflow
applying
genetic
identification
markers
additional
fields
endeavors.
Science Advances,
Journal Year:
2019,
Volume and Issue:
5(11)
Published: Nov. 1, 2019
A
key
feature
of
life's
diversity
is
that
some
species
are
common
but
many
more
rare.
Nonetheless,
at
global
scales,
we
do
not
know
what
fraction
biodiversity
consists
rare
species.
Here,
present
the
largest
compilation
plant
to
quantify
Earth's
large
fraction,
~36.5%
~435,000
species,
exceedingly
Sampling
biases
and
prominent
models,
such
as
neutral
theory
k-niche
model,
cannot
account
for
observed
prevalence
rarity.
Our
results
indicate
(i)
climatically
stable
regions
have
harbored
hence
a
via
reduced
extinction
risk
(ii)
climate
change
human
land
use
now
disproportionately
impacting
Estimates
abundance
distributions
important
implications
assessments
conservation
planning
in
this
era
rapid
change.
Science,
Journal Year:
2019,
Volume and Issue:
366(6461), P. 124 - 128
Published: Oct. 4, 2019
Fungal
influence
on
density
dependence
Tree
species
in
highly
diverse
tropical
forests
tend
to
exhibit
conspecific
negative
dependence,
a
phenomenon
whereby
individuals
of
the
same
grow
at
distance
from
one
another.
This
is
understood
be
key
driver
coexistence.
The
strength
varies
between
species,
but
mechanisms
driving
this
variation
are
unknown.
Chen
et
al.
studied
tree
subtropical
forest
China
and
found
an
important
role
for
soil-dwelling
fungi
variation.
Elevated
accumulation
pathogenic
leads
stronger
whereas
elevated
mutualistic
weaker
dependence.
Science
,
issue
p.
124
iScience,
Journal Year:
2019,
Volume and Issue:
13, P. 254 - 268
Published: Feb. 27, 2019
Foundation
species
define
ecosystems,
control
the
biological
diversity
of
associated
species,
modulate
critical
ecosystem
processes,
and
often
have
important
cultural
values
resonance.
This
review
summarizes
current
understanding
characteristics
traits
foundation
how
to
distinguish
them
from
other
"important"
in
ecological
systems
(e.g.,
keystone,
dominant,
core
species);
illustrates
analysis
structure
function
networks
can
be
improved
enriched
by
explicit
incorporation
their
non-trophic
interactions;
discusses
importance
pro-active
identification
management
as
a
cost-effective
efficient
method
sustaining
valuable
processes
services
securing
populations
rare,
threatened,
or
endangered
species;
suggests
broader
engagement
citizen-scientists
non-specialists
study
values.
Global Change Biology,
Journal Year:
2018,
Volume and Issue:
24(8), P. 3317 - 3330
Published: March 24, 2018
Abstract
Forest
soils
store
large
amounts
of
carbon
(C)
and
nitrogen
(N),
yet
how
predicted
shifts
in
forest
composition
will
impact
long‐term
C
N
persistence
remains
poorly
understood.
A
recent
hypothesis
predicts
that
under
trees
associated
with
arbuscular
mycorrhizas
(
AM
)
less
than
dominated
by
ectomycorrhizas
ECM
),
due
to
slower
decomposition
‐dominated
forests.
However,
an
incipient
systems
rapid
decomposition—e.g.
most
forests—enhance
soil
organic
matter
SOM
stabilization
accelerating
the
production
microbial
residues.
To
address
these
contrasting
predictions,
we
quantified
1
m
depth
across
gradients
‐dominance
three
temperate
By
focusing
on
sites
where
‐
‐plants
co‐occur,
our
analysis
controls
for
climatic
factors
covary
mycorrhizal
dominance
broad
scales.
We
found
while
stands
contain
more
topsoil,
when
subsoil
is
included.
Biomarkers
fractionations
reveal
patterns
are
driven
accumulation
residues
soils.
Collectively,
results
support
emerging
theory
formation,
demonstrate
importance
subsurface
mediating
plant
effects
N,
indicate
forests
may
alter
.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: March 9, 2022
Abstract
Conceptual
and
empirical
advances
in
soil
biogeochemistry
have
challenged
long-held
assumptions
about
the
role
of
micro-organisms
organic
carbon
(SOC)
dynamics;
yet,
rigorous
tests
emerging
concepts
remain
sparse.
Recent
hypotheses
suggest
that
microbial
necromass
production
links
plant
inputs
to
SOC
accumulation,
with
high-quality
(i.e.,
rapidly
decomposing)
litter
promoting
use
efficiency,
growth,
turnover
leading
more
mineral
stabilization
necromass.
We
test
this
hypothesis
experimentally
observations
across
six
eastern
US
forests,
using
stable
isotopes
measure
traits
dynamics.
Here
we
show,
both
studies,
are
negatively
(not
positively)
related
mineral-associated
SOC.
In
experiment,
stimulation
growth
by
enhances
decomposition,
offsetting
positive
effect
quality
on
stabilization.
is
not
primary
driver
persistence
temperate
forests.
Factors
such
as
origin,
alternative
formation
pathways,
priming
effects,
abiotic
properties
can
strongly
decouple
from
