Ecological consequences of body size reduction under warming
Proceedings of the Royal Society B Biological Sciences,
Год журнала:
2024,
Номер
291(2029)
Опубликована: Авг. 1, 2024
Body
size
reduction
is
a
universal
response
to
warming,
but
its
ecological
consequences
across
biological
levels,
from
individuals
ecosystems,
remain
poorly
understood.
Most
processes
scale
with
body
size,
and
warming-induced
changes
in
can
therefore
have
important
consequences.
To
understand
these
consequences,
we
propose
unifying,
hierarchical
framework
for
the
impacts
of
intraspecific
reductions
due
thermal
plasticity
that
explicitly
builds
on
three
key
pathways:
morphological
constraints,
bioenergetic
constraints
surface-to-volume
ratio.
Using
this
framework,
synthesize
at
multiple
levels
organization.
We
outline
how
trait-based
improve
our
understanding,
detection
generalization
warming.
Язык: Английский
Climate Impacts on Lake Food‐Webs Are Mediated by Biological Invasions
Global Change Biology,
Год журнала:
2025,
Номер
31(3)
Опубликована: Март 1, 2025
ABSTRACT
Climate
change
and
biological
invasions
are
among
the
most
important
drivers
of
biodiversity
ecosystem
change.
Despite
major
advances
in
understanding
their
ecological
impacts,
these
often
considered
individually,
overlooking
possible
complex
interrelationship.
By
applying
structural
equation
modeling
to
an
extensive
nationwide
dataset
430
fish
communities
across
257
French
lakes,
we
investigated
how
taxonomic,
size,
trophic
diversities
impacted
by
climate
warming
exotic
species
occurrence.
Our
goal
was
compare
relative
signature
or
lasting
impacts
after
factors
had
taken
effect
determine
whether
mediate
current
state
community
diversities.
Drawing
on
a
set
interconnected
hypotheses,
suggest
that
could
be
indirect
warming.
This
aspect
must
fully
grasp
overall
effects
change,
beyond
just
its
direct
thermal
impacts.
results
support
our
hypothesis
negatively
size
However,
mostly
mediated
warming‐induced
increase
richness,
which,
turn,
promotes
total
richness.
These
have
substantial
role
determining
impact
obscuring
diversity
patterns
predicted
temperature
alone.
We
conclude
cannot
understood
without
considering
via
invasions,
underscoring
need
intertwined
roles
predicting
managing
consequences.
Язык: Английский
Differences in Tri‐Trophic Community Responses to Temperature‐Dependent Vital Rates, Thermal Niche Mismatches and Temperature‐Size Rule
Ecology Letters,
Год журнала:
2024,
Номер
27(11)
Опубликована: Ноя. 1, 2024
ABSTRACT
Warming
climate
impacts
aquatic
ectotherms
by
changes
in
individual
vital
rates
and
declines
body
size,
a
phenomenon
known
as
the
temperature‐size
rule
(TSR),
indirectly
through
altered
species
interactions
environmental
feedbacks.
The
relative
importance
of
these
effects
shaping
community
responses
to
change
is
incompletely
understood.
We
employ
tri‐trophic
food
chain
model
with
size‐
temperature‐dependent
interaction
strengths
explore
role
direct
kinetic
temperature
TSR
on
structure
along
resource
productivity
gradients.
find
that
structure,
including
propensity
for
sudden
collapse
gradients,
primarily
driven
thermal
mismatches
between
consumer
predator
species,
overshadowing
TSR‐mediated
effects.
Overall,
our
study
enhances
understanding
complex
interplay
temperature,
traits
dynamics
ecosystems.
Язык: Английский