Understanding
population
dynamics
across
environmental
contexts
is
essential
to
predict
ecosystem
stability.
Functional
traits
influence
growth,
which
can
in
turn
the
and
thus
create
feedbacks
between
trait
dynamics.
Here,
by
augmenting
models
of
change
with
information,
respectively,
we
demonstrate
that
such
a
feedback
occurred
an
autotrophic
but
not
heterotrophic
microbial
system.
Furthermore,
exposure
pollutant
disrupted
this
feedback:
growth
ceased
interact
either
Finally,
when
augmented
trait/population
information
were
superior,
improvement
was
substantial,
showing
density–trait
are
potentially
large,
even
though
they
system‐
environment‐specific.
Global Change Biology,
Год журнала:
2022,
Номер
28(18), С. 5337 - 5345
Опубликована: Июнь 21, 2022
With
rapid
and
less
predictable
environmental
change
emerging
as
the
'new
norm',
understanding
how
individuals
tolerate
stress
via
plastic,
often
reversible
changes
to
phenotype
(i.e.,
phenotypic
plasticity,
RPP),
remains
a
key
issue
in
ecology.
Here,
we
examine
potential
for
better
organisms
overcome
challenges
within
their
own
lifetimes
by
scrutinizing
somewhat
overlooked
aspect
of
RPP,
namely
rate
at
which
it
can
occur.
Although
recent
advances
field
provide
indication
aspects
where
RPP
rates
may
be
particular
ecological
relevance,
observe
that
current
theoretical
models
do
not
consider
evolutionary
RPP.
Whilst
theory
underscores
importance
predictability
determining
slope
evolved
reaction
norm
given
trait
much
plasticity
occur),
hitherto
neglected
possibility
is
might
more
dynamic
component
this
relationship
than
previously
assumed.
If
itself
evolve,
empirical
evidence
foreshadows,
have
alter
level
environment
perceived
organism
thus
influence
norm.
However,
optimality
its
dynamics
different
environments
constraints
imposed
associated
costs
remain
unexplored
represent
fruitful
avenues
exploration
future
treatments
topic.
We
conclude
reviewing
published
studies
rates,
providing
suggestions
improving
measurement
both
terms
experimental
design
statistical
quantification
plasticity.
Proceedings of the Royal Society B Biological Sciences,
Год журнала:
2023,
Номер
290(1992)
Опубликована: Фев. 8, 2023
Thermal
variability
is
a
key
driver
of
ecological
processes,
affecting
organisms
and
populations
across
multiple
temporal
scales.
Despite
the
ubiquity
variation,
biologists
lack
quantitative
synthesis
observed
consequences
thermal
wide
range
taxa,
phenotypic
traits
experimental
designs.
Here,
we
conduct
meta-analysis
to
investigate
how
properties
organisms,
their
experienced
regime
whether
in
either
past
(prior
an
assay)
or
present
(during
affect
performance
relative
experiencing
constant
environments.
Our
results—which
draw
upon
1712
effect
sizes
from
75
studies—indicate
that
effects
are
not
unidirectional
become
more
negative
as
mean
temperature
fluctuation
increase.
Exposure
variation
decreases
greater
extent
than
increases
costs
diminishing
benefits
broad
set
empirical
studies.
Further,
identify
life-history
attributes
predictably
modify
response
variation.
findings
demonstrate
on
context-dependent,
yet
outcomes
may
be
heightened
warmer,
variable
climates.
Abstract
Species
interactions
can
contribute
to
species
turnover
when
the
outcomes
of
are
context
dependent
(e.g.,
change
along
environmental
gradients).
Plasticity
may
this
dynamic
by
altering
tolerances
interacting.
Here,
we
explored
how
competitive
interaction
between
two
euryhaline
fish,
Poecilia
reticulata
and
picta
,
is
influenced
acute
developmental
responses
salinity.
In
Trinidad,
P.
confined
freshwater
despite
being
tolerant
brackish
water.
fail
occupy
water
because
reduced
tolerance
salinity
or
competitively
excludes
them,
developing
in
could
alter
dynamics
either
scenario.
To
test
this,
compared
both
absence
competition,
reared
individuals
water,
tested
consequences
plasticity
experiments
which
competed
against
conspecifics
during
exposure
We
found
that
(1)
has
a
weaker
than
;
(2)
developed
perform
best
competing
but
poorly
suggesting
dependent;
(3)
did
not
benefit
Our
results
suggest
's
range
limit
part
product
lower
leading
decrease
performance
Adaptive
been
suggested
be
crucial
colonization
process,
yet
nonadaptive
plastic
as
here
expansion
reinforce
limits.
ABSTRACT
Phenotypic
plasticity
enables
organisms
to
express
a
phenotype
that
is
optimal
in
their
current
environment.
The
ability
of
obtain
the
optimum
determined
by
(i)
capacity
for
plasticity,
which
facilitates
phenotypic
adjustment
corresponding
amplitude
environmental
change
but
also
(ii)
rate
because
this
determines
if
expressed
lags
behind
changes
optimum.
How
of‐
and
have
co‐evolved
will
thus
be
critical
resilience
under
different
patterns
change.
To
evaluate
direction
evolved
relationship
between
capacity,
we
reanalysed
experiments
documenting
time
course
thermal
tolerance
acclimation
temperature
across
species
ectothermic
animals.
We
found
with
responds
plastically
are
negatively
correlated,
pattern
inconsistent
theory
regarding
evolution
plasticity.
Abstract
Nutrients
and
light
are
major
resources
controlling
growth,
biomass,
community
structure
of
phytoplankton.
When
looking
at
those
individually,
resource
uptake
biochemical
transformation,
thereby
also
the
demand
for
resources,
have
been
shown
to
be
temperature‐dependent.
However,
there
is
still
a
lack
understanding
how
temperature
controls
response
multiple
although
simultaneous
limitation
by
common
single
species
whole
communities.
We
conducted
multifactorial,
gradient‐design
experiment
growing
four
freshwater
phytoplankton
under
125
combinations
temperature,
light,
nutrients
(5
×
5
levels).
In
three
species,
we
found
evidence
an
interactive
effect
on
growth
that
was
modulated
temperature.
The
high‐level
supply
both
algal
rate
generally
exceeded
sum
their
individual
effects.
Conversely,
lowest
rates
occurred
not
necessarily
level
but
most
extreme
light:nutrient
ratios
(either
only
or
were
highest
other
remained
low
supply).
These
light‐nutrient
effects
resulting
in
when
highest.
Our
study
demonstrates
modulates
magnitude
growth.
Consequently,
these
findings
highlight
importance
considering
understand
show
responses
would
over‐
underestimated
interactions
taken
into
account.
results
provide
first
indication
resource‐dependent
will
change
warming
world
resources.
Limnology and Oceanography Letters,
Год журнала:
2022,
Номер
8(2), С. 247 - 266
Опубликована: Окт. 22, 2022
Abstract
The
relevance
of
considering
environmental
variability
for
understanding
and
predicting
biological
responses
to
changes
has
resulted
in
a
recent
surge
variability‐focused
ecological
research.
However,
integration
findings
that
emerge
across
studies
identification
remaining
knowledge
gaps
aquatic
ecosystems
remain
critical.
Here,
we
address
these
aspects
by:
(1)
summarizing
relevant
terms
research
including
the
components
(characteristics)
key
interactions
when
multiple
factors;
(2)
identifying
conceptual
frameworks
consequences
single
multifactorial
scenarios;
(3)
highlighting
challenges
bridging
theoretical
experimental
involving
transitioning
from
simple
more
complex
(4)
proposing
improved
approaches
overcome
current
mismatches
between
predictions
observations;
(5)
providing
guide
designing
integrated
experiments
scales,
degrees
control,
complexity
light
their
specific
strengths
limitations.
Ecological Monographs,
Год журнала:
2021,
Номер
91(4)
Опубликована: Июль 9, 2021
Abstract
Phenotypic
adjustments
following
environmental
change
are
ubiquitous,
and
trait
changes
arising
through
phenotypic
plasticity
often
lag
behind
their
stimuli.
Evolutionary
biologists
seeking
to
understand
how
adaptive
can
evolve
have
extensively
studied
this
phenomenon.
However,
the
ecological
consequences
of
common
features
plastic
responses
variability,
including
gradual
(i.e.,
slower
than
pace
change),
underappreciated.
We
present
a
framework
based
on
unifying
concept
phenotype
×
environment
performance
landscapes
that
encompasses
plasticity.
Then,
we
experimentally
investigate
contexts
where
is
important,
using
freshwater
phytoplankton
populations
exposed
thermal
variation.
Finally,
our
conceptual
framework,
develop
mathematical
model
explains
population
dynamics
in
variable
environments
better
alternative
models.
Understanding
accounting
for
effects
critical
making
vital
predictions
advancing
ecology.
Functional Ecology,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 24, 2025
Abstract
Phenotypic
plasticity
allows
organisms
to
track
changing
trait
optima
under
environmental
variation.
To
what
extent
this
is
achieved
will
be
jointly
determined
by
the
rate
of
and
capacity
for
plasticity.
Despite
potential
fitness
implications
these
two
components
phenotypic
plasticity,
a
quantitative
understanding
their
variance
across
types
conditions
lacking.
Here,
we
address
knowledge
gap
compiling
data
from
time‐course
experiments
that
describe
how
range
physiological
traits
aquatic
ectotherms
changes
in
response
shift
salinity.
We
then
build
upon
recent
analytical
advances
produce
estimates
each
experiment
are
comparable
traits.
A
total
324
originating
59
species
fishes,
sharks
crustaceans
were
available
analyses.
For
experiment,
was
assigned
one
five
categories.
Bivariate
meta‐analyses
used
quantify
temperature
effects
on
rates
capacities
Our
analyses
show
plastic
responses
change
salinity
differ
among
categories,
interactive
effect
category
differs
capacity.
Temperature
more
consistent
than
capacity,
with
higher
temperatures
being
associated
faster
hormones,
metabolites
metabolic
osmoregulatory
enzymes.
positive
only
found
Within
observed
temperatures,
hormones
had
consistently
fastest
predicted
salinity,
whereas
categories
enzymes
relatively
slow
comparison.
Plastic
substantially
those
previously
reported
thermal
tolerance.
study
adds
growing
evidence
has
important
axes
Further
progress
can
deal
fluctuating
environments
likely
benefit
increased
theoretical
empirical
efforts
within
field
research.
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