Growth decline in European beech associated with temperature-driven increase in reproductive allocation
Proceedings of the National Academy of Sciences,
Год журнала:
2025,
Номер
122(5)
Опубликована: Янв. 28, 2025
Climate
change
is
impacting
forests
in
complex
ways,
with
indirect
effects
arising
from
interactions
between
tree
growth
and
reproduction
often
overlooked.
Our
43-y
study
of
European
beech
(
Fagus
sylvatica
)
showed
that
rising
summer
temperatures
since
2005
have
led
to
more
frequent
seed
production
events.
This
shift
increases
reproductive
effort
but
depletes
the
trees’
stored
resources
due
insufficient
recovery
periods
crops.
Consequently,
annual
ring
increments
declined
by
28%,
dropping
a
stable
average
1.60
mm
y
−1
1980
1.16
thereafter.
Importantly,
this
decline
occurred
without
an
accompanying
trend
drought,
indicating
altered
patterns—not
moisture
stress—are
driving
reduction.
creates
“perfect
storm”:
Increased
drains
resources,
viable
output
falls
loss
mast-seeding
benefits
via
pollination
lower
predation,
ongoing
reduces
current
carbon
uptake
future
potential.
These
compounding
factors
threaten
sustainability
Europe’s
most
widespread
forest
tree.
findings
unveil
critical
yet
underrecognized
mechanism
which
climate
endangers
ecosystems,
emphasizing
need
consider
demographic
processes
when
assessing
species
vulnerability
change.
Язык: Английский
Comparing two ground-based seed count methods and their effect on masting metrics
Forest Ecology and Management,
Год журнала:
2025,
Номер
581, С. 122551 - 122551
Опубликована: Фев. 13, 2025
Язык: Английский
Growth responses of Persian walnut (Juglans regia L.) to climate variation along its full elevational range in Kyrgyzstan
Dendrochronologia,
Год журнала:
2024,
Номер
85, С. 126203 - 126203
Опубликована: Апрель 12, 2024
Kyrgyzstan
features
the
largest
naturally
occurring
walnut
forests
in
world.
Their
high
plant
biodiversity,
including
wild
relatives
to
modern-day
fruit
species
such
as
apple
and
pear,
make
them
a
valuable
guardian
of
genetic
diversity.
Further,
have
economic
importance
for
country.
Climate
change,
however,
poses
major
threat
these
ecosystems,
particular
since
rises
temperature
are
projected
that
well
above
global
average.
As
studies
on
effects
changing
environmental
conditions
growth
missing,
we
investigate
climate
sensitivity
temporal
stability
thereof
extreme
responses
along
its
full
elevational
gradient
Kyrgyzstan.
Whereas
expected
find
shift
from
water-
temperature-limitation
over
gradient,
which
may
move
upwards
with
recent
warming,
found
be
temperature-limited
entire
gradient.
In
decades,
negative
correlations
between
drought
index
SPEI
tree
growth,
weakened.
An
up
until
now
low
stress
is
also
substantiated
by
pointer-year
analysis.
Overall,
our
results
show
already
affected
though
imminent
risks
drought-induced
vitality
loss
seem
still
low.
With
ongoing
this
may,
rapidly
change.
Язык: Английский
Does parental tree size determine acorn germination in Quercus ilex L. dehesas?
Forest Ecology and Management,
Год журнала:
2025,
Номер
583, С. 122587 - 122587
Опубликована: Фев. 22, 2025
Drought limits tree growth more than greenness and reproduction: insights from five case studies in Spain
Forest Ecosystems,
Год журнала:
2025,
Номер
unknown, С. 100329 - 100329
Опубликована: Апрель 1, 2025
Язык: Английский
Reconstruction of Araucaria araucana cone production reveals warming intensifies regionally synchronized masting
Ecosphere,
Год журнала:
2024,
Номер
15(12)
Опубликована: Дек. 1, 2024
Abstract
The
reproduction
of
many
long‐lived
plants
is
highly
variable
and
synchronized,
known
as
masting.
Masting
a
key
driver
plant
regeneration
dynamics
has
cascading
effects
on
food
webs
carbon
nutrient
fluxes
through
ecosystems.
patterns
can
respond
to
changes
in
climate,
but
natural
long‐term
variability
masting
behavior
(i.e.,
baseline
variability)
poorly
understood.
Here
we
use
tree‐rings
create
four‐century
reconstruction
annual
cone
production
uncover
centennial‐scale
evolution
Araucaria
araucana
,
dioecious
species
South
America.
Over
the
last
four
decades,
direct
observations
this
revealed
remarkable
range‐wide
synchrony
Our
tree‐ring‐based
places
context,
revealing
that
intense
regional
not
consistent
feature
A.
reproduction.
For
extensive
periods
over
centuries,
been
site‐specific
phenomenon,
with
was
regionally
synchronized.
Comparison
climate
reconstructions
indicates
varies
temperature
trends,
including
during
recent
decades.
During
warmer
periods,
enhanced,
cooler
breaks
down.
These
have
implications
for
understanding
iconic
endangered
tree
provide
evidence
linkages
between
change
behavior.
study
demonstrates
potential
novel
reveal
crucial
insights
into
response
change.
Язык: Английский