The Science of The Total Environment,
Journal Year:
2021,
Volume and Issue:
779, P. 146393 - 146393
Published: March 18, 2021
Warmer
climate
and
more
frequent
extreme
droughts
will
pose
major
threats
to
forest
ecosystems.
Past
demography
processes
due
post-glacial
recolonization
adaptation
local
environmental
conditions
are
among
the
main
contributors
genetic
differentiation
provenances.
Assessing
intra-specific
variability
of
tree
growth
responses
such
changes
is
crucial
explore
a
species'
potential
cope
with
warming.
We
combined
growth-related
traits
derived
from
tree-ring
width
series
neutral
information
18
European
provenances
silver
fir
(Abies
alba
Mill.)
growing
in
two
common
garden
experiments
Switzerland.
Analyses
based
on
single
nucleotide
polymorphisms
revealed
that
studied
grouped
into
three
longitudinal
clusters.
These
clusters
showed
differences
(height
DBH),
eastern
cluster
exhibiting
highest
growth.
The
Pyrenees
significantly
lower
recovery
resilience
drought
2003
as
well
values
autocorrelation.
QST-FST
correlation
analyses
provenance
origin
suggest
found
some
result
natural
selection.
Our
study
suggests
last
re-colonization
selection
drivers
explaining
across
Europe.
findings
highlight
importance
combining
dendroecology
fitness-related
assess
species
global
change
provide
insights
support
assisted
gene
flow
ensure
persistence
forests.
The Science of The Total Environment,
Journal Year:
2021,
Volume and Issue:
784, P. 147222 - 147222
Published: April 21, 2021
Recent
studies
have
identified
strong
relationships
between
delayed
recovery
of
tree
growth
after
drought
and
mortality
caused
by
subsequent
droughts.
These
observations
raise
concerns
about
forest
ecosystem
services
post-drought
given
the
projected
increase
in
frequency
extremes.
For
quantifying
impact
extreme
droughts
on
radial
growth,
we
used
a
network
tree-ring
width
data
1689
trees
from
100
sites
representing
most
distribution
two
tolerant,
deciduous
oak
species
(Quercus
petraea
Quercus
robur).
We
first
examined
which
climatic
factors
seasons
control
if
there
is
any
latitudinal,
longitudinal
or
elevational
trend.
then
quantified
relative
departure
pre-drought
during
droughts,
how
fast
were
able
to
recover
level.
Our
results
showed
that
was
more
related
precipitation
water
balance
(precipitation
minus
potential
evapotranspiration)
than
temperature.
However,
did
not
detect
clear
trends
except
decreasing
influence
summer
Q.
with
latitude.
Neither
maintain
level
both
rapid
even
compensation
but
displayed
slow
response
spring
where
none
fully
growth-level
over
three
years.
Collectively,
our
indicate
oaks
are
considered
resilient
also
shown
vulnerability
when
occurred
especially
at
long-term
significantly
correlated
factors.
This
improved
understanding
role
seasonality
climate
sensitivity
key
better
predict
trajectories
drier
for
Europe.
Global Change Biology,
Journal Year:
2022,
Volume and Issue:
28(12), P. 3871 - 3882
Published: Feb. 6, 2022
Tree
species
display
a
wide
variety
of
water-use
strategies,
growth
rates
and
capacity
to
tolerate
drought.
However,
if
we
want
forecast
cope
with
increasing
aridity
drought,
need
identify
which
measurable
traits
confer
resilience
drought
across
species.
Here,
use
global
tree
ring
network
(65
species;
1931
site
series
ring-width
indices-RWI)
evaluate
the
relationship
long-term
growth-drought
sensitivity
(RWI-SPEI
index
relationship)
short-term
response
extreme
episodes
(resistance,
recovery
indices)
functional
related
leaf,
wood
hydraulic
properties.
Furthermore,
assess
influence
climate
(temperature,
precipitation
climatic
water
deficit)
on
these
trait-growth
relationships.
We
found
close
correspondence
between
RWI
SPEI
resistance
severe
episodes.
Species
displaying
stronger
RWI-SPEI
low
high
tended
have
higher
density
(WD)
more
negative
leaf
minimum
potential
(Ψmin).
Such
associations
were
largely
maintained
when
accounting
for
direct
effects.
Our
results
indicate
that,
at
cross-species
level
scale,
explain
species'
responses
short-
scales.
These
relationships
can
improve
our
understanding
withstand
change
inform
models
better
predict
effects
forest
ecosystem
dynamics.
Frontiers in Ecology and Evolution,
Journal Year:
2023,
Volume and Issue:
11
Published: Feb. 16, 2023
Genetic
diversity
is
a
prerequisite
for
evolutionary
change
in
all
kinds
of
organisms.
It
generally
acknowledged
that
populations
lacking
genetic
variation
are
unable
to
evolve
response
new
environmental
conditions
(e.g.,
climate
change)
and
thus
may
face
an
increased
risk
extinction.
Although
the
importance
incorporating
into
design
conservation
measures
now
well
understood,
less
attention
has
been
paid
distinction
between
neutral
(NGV)
adaptive
(AGV)
variation.
In
this
review,
we
first
focus
on
utility
NGV
by
examining
ways
quantify
it,
reviewing
applications
infer
ecological
processes,
exploring
its
designing
plant
species.
Against
background,
then
summarize
identify
estimate
AGV
discuss
potential
use
conservation.
After
comparing
considering
their
pros
cons
context,
conclude
there
urgent
need
better
understanding
role
adaptation.
To
date,
however,
only
few
studies
non-model
species
aimed
at
deciphering
genomic
basis
complex
trait
Therefore,
researchers
practitioners
should
keep
utilizing
develop
relevant
strategies
rare
endangered
until
more
estimates
available.
New Phytologist,
Journal Year:
2022,
Volume and Issue:
235(2), P. 420 - 431
Published: April 4, 2022
Drought
is
intensifying
globally
with
climate
change,
creating
an
urgency
to
understand
ecosystem
response
drought
both
during
and
after
these
events
end
limit
loss
of
functioning.
The
literature
replete
studies
how
ecosystems
respond
drought,
yet
there
are
far
fewer
focused
on
dynamics
ends.
Furthermore,
while
the
terms
used
describe
can
be
variable
inconsistent,
so
those
that
responses
following
drought.
With
this
review,
we
sought
evaluate
create
clear
definitions
ecologists
use
post-drought
responses.
We
found
legacy
effects,
resilience
recovery
were
most
commonly
respect
responses,
but
variable.
Based
our
review
literature,
propose
a
framework
for
generalizing
ends,
which
refer
as
'the
period'.
suggest
future
papers
need
clearly
characteristics
imposed
encourage
authors
term
period
general
encompasses
ends
other
more
specific
descriptors
period.
Global Change Biology,
Journal Year:
2020,
Volume and Issue:
26(8), P. 4538 - 4558
Published: May 18, 2020
Abstract
The
carbon
isotope
ratio
(δ
13
C)
in
tree
rings
is
commonly
used
to
derive
estimates
of
the
assimilation‐to‐stomatal
conductance
rate
trees,
that
is,
intrinsic
water‐use
efficiency
(iWUE).
Recent
studies
have
observed
increased
iWUE
response
rising
atmospheric
CO
2
concentrations
(
C
a
),
many
different
species,
genera
and
biomes.
However,
increasing
rates
vary
widely
from
one
study
another,
likely
because
numerous
covarying
factors
are
involved.
Here,
we
quantified
changes
two
distributed
boreal
conifers
using
samples
forest
inventory
network
were
collected
across
wide
range
growing
conditions
(assessed
site
index,
SI),
developmental
stages
stand
histories.
Using
tree‐ring
isotopes
analysis,
assessed
magnitude
increase
after
accounting
for
effects
size,
age,
nitrogen
deposition,
climate
SI.
We
also
estimated
how
growth
modulated
physiological
responses
.
found
increases
size
age
greatly
influenced
iWUE.
effect
on
was
strongly
reduced
these
variables.
,
mostly
trees
fertile
stands,
whereas
remained
almost
unchanged
poor
sites.
Our
results
suggest
past
could
overestimated
iWUE,
potentially
leading
biased
inferences
about
future
net
balance
forest.
this
weakening,
which
affect
capacity
resist
recover
drought
episodes.
Journal of Ecology,
Journal Year:
2021,
Volume and Issue:
109(10), P. 3652 - 3669
Published: July 9, 2021
Abstract
A
higher
frequency
and
intensity
of
droughts
will
impair
forest
productivity.
Therefore,
improving
our
understanding
which
factors
enhance
tree
growth
resilience
against
drought
has
become
a
crucial
issue,
but
we
lack
information
at
the
intraspecific
level.
In
this
study,
investigate
role
played
by
climatic
conditions
characteristics
in
response
to
severe
two
deciduous
Fagaceae
species
near
their
southern
distribution
limit:
temperate
European
beech
Fagus
sylvatica
Mediterranean
pubescent
oak
Quercus
pubescens
.
The
study
area
is
located
Catalonia,
NE
Spain,
where
149
trees
were
cored
covering
water
availability
gradient
region.
addition,
size
(diameter
height)
an
ensemble
stem,
leaf
hydraulic
traits
collected
for
each
tree.
Growth
responses
extreme
during
period
1980–2015
assessed
using
indicators
based
on
residual
basal
increment
series
predicted
model
including
growing
season
balance.
Although
resistance
was
unrelated
intensity,
improved
recovery
reduced
legacy
effects.
Taller
showed
drought,
could
be
explained
relationship
between
variation
height
functional
traits,
such
as
nitrogen
concentration,
turgor
loss
point
xylem
embolism.
For
both
species,
with
lower
cavitation
resistance,
concentration
tighter
stomatal
regulation
(suggested
less
negative
carbon
isotope
composition)
displayed
better
performance
after
droughts.
Both
progressive
decrease
increase
Synthesis
This
highlights
relevance
analysing
involved
balance
improve
variability
within
species.
Molecular Ecology,
Journal Year:
2021,
Volume and Issue:
30(16), P. 3898 - 3917
Published: Feb. 17, 2021
As
boreal
forests
face
significant
threats
from
climate
change,
understanding
evolutionary
trajectories
of
coniferous
species
has
become
fundamental
to
adapting
management
and
conservation
a
drying
climate.
We
examined
the
genomic
architecture
underlying
adaptive
variation
related
drought
tolerance
in
43
populations
widespread
conifer,
white
spruce
(Picea
glauca
[Moench]
Voss),
by
combining
genotype-environment
associations,
genotype-phenotype
transcriptomics.
Adaptive
genetic
was
identified
correlating
allele
frequencies
for
6,153
single
nucleotide
polymorphisms
2,606
candidate
genes
with
temperature,
precipitation
aridity
gradients,
testing
associations
between
genotypes
11
dendrometric
drought-related
traits
(i.e.,
anatomical,
growth
response
climate-sensitivity
traits)
using
polygenic
model.
set
285
significantly
associated
climatic
factor
or
phenotypic
trait,
including
110
that
were
differentially
expressed
under
greenhouse-controlled
conditions.
The
interlinked
phenotype-genotype-environment
network
revealed
eight
high-confidence
involved
adaptation
drought,
which
four
drought-responsive
expression
analysis.
Our
findings
represent
step
toward
characterization
basis
conifers,
is
essential
enable
establishment
resilient
view
new
Journal of Ecology,
Journal Year:
2022,
Volume and Issue:
110(9), P. 2088 - 2104
Published: May 27, 2022
Abstract
Drought
events
may
reduce
growth
and
survival
of
conifer
trees.
The
effects
the
intensity
timing
drought
on
resilience,
including
reductions
during
recovery
after
drought,
remain,
however,
highly
uncertain.
Growth
resilience
20
species
to
11
dry
years
was
compared
in
a
common
garden
experiment.
We
assessed
(a)
relationships
among
resistance,
(b)
impacts
different
dimensions
(intensity,
onset
length)
resistance
(c)
underlying
mechanisms
terms
potential
hydraulic
traits.
Droughts
led
22%
reduction
stem
for
85%
species,
but
most
(85%)
were
resilient
due
high
recovery.
decreased
with
an
early
(significant
55%
species),
longer‐lasting
(35%)
intense
droughts
(60%).
While
fast‐growing
slow‐growing
similar
recovery,
more
resilient.
Unexpectedly,
could
not
be
explained
by
traits,
possibly
because
grew
poor
sandy
soils
acclimated
large
safety
margins.
Synthesis
.
Our
study
shows
that
mild
maritime
climate
almost
all
are
putative
traits
less
important
here
resilience.
It
also
highlights
importance
addressing
multiple
is,
timing,
duration
severity,
predict
responses
change.
New Phytologist,
Journal Year:
2022,
Volume and Issue:
237(5), P. 1590 - 1605
Published: Sept. 7, 2022
Summary
Local
adaptation
to
climate
is
common
in
plant
species
and
has
been
studied
a
range
of
contexts,
from
improving
crop
yields
predicting
population
maladaptation
future
conditions.
The
genomic
era
brought
new
tools
study
this
process,
which
was
historically
explored
through
garden
experiments.
In
study,
we
combine
methods
gardens
investigate
local
red
spruce
identify
environmental
gradients
loci
involved
adaptation.
We
first
use
transfer
functions
estimate
the
impact
change
on
seedling
performance
three
gardens.
then
explore
multivariate
gene–environment
association
genes
underlying
adaptation,
with
particular
attention
implications
conducting
genome
scans
without
correction
for
neutral
structure.
This
integrative
approach
uncovered
phenotypic
evidence
identified
set
putatively
adaptive
genes,
some
are
main
pathways
found
other
temperate
boreal
coniferous
species:
drought
tolerance,
cold
hardiness,
phenology.
These
segregated
into
two
‘modules’
associated
different
gradients.
nicely
exemplifies
dimension
trees.