bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 13, 2024
Abstract
Determining
the
ecological
and
evolutionary
mechanisms
that
underpin
patterns
of
species
richness
across
elevational
gradients
is
a
key
question
in
ecology,
can
help
to
understand
extinction
risk
under
changing
climates.
In
tropical
montane
islands
Fiji,
there
are
28
endemic
bee
subgenus
Lasioglossum
(
Homalictus
),
where
increases
with
elevation
despite
decreasing
land
surface
(habitat)
areas.
We
used
combination
spatially
explicit
phylogenetic
diversity
analyses
trait
examine
factors
shaping
distributions
these
bees.
found
at
higher
elevations
had
lower
heat
tolerance
desiccation
resistance
than
those
elevations,
consistent
traits
constraining
species’
ranges.
also
high
within
mountains,
signal
minimum
ranges,
being
evolutionarily
conserved
among
mountain-top
taxa
following
vicariant
(allopatric)
speciation.
no
evidence
suggest
interspecific
competition
all,
our
findings
indicate
conservatism
physiological
related
climatic
niche,
such
as
tolerance,
explain
why
highest
mountain
tops
this
system,
having
tracked
their
niches
over
time
towards
ever
(cooler
wetter)
elevations.
Because
archipelago
extremely
limited
(∼2.3%
total
area),
only
miniscule
‘islands
sky’
remain
into
which
diverse,
but
climate-restricted
fauna,
retreat
climates
warm.
Proceedings of the National Academy of Sciences,
Journal Year:
2023,
Volume and Issue:
120(15)
Published: April 5, 2023
Addressing
climate
change
and
biodiversity
loss
will
be
the
defining
ecological,
political,
humanitarian
challenge
of
our
time.
Alarmingly,
policymakers
face
a
narrowing
window
opportunity
to
prevent
worst
impacts,
necessitating
complex
decisions
about
which
land
set
aside
for
preservation.
Yet,
ability
make
these
is
hindered
by
limited
capacity
predict
how
species
respond
synergistic
drivers
extinction
risk.
We
argue
that
rapid
integration
biogeography
behavioral
ecology
can
meet
challenges
because
distinct,
yet
complementary
levels
biological
organization
they
address,
scaling
from
individuals
populations,
communities
continental
biotas.
This
union
disciplines
advance
efforts
biodiversity’s
responses
habitat
through
deeper
understanding
biotic
interactions
other
behaviors
modulate
risk,
populations
impact
in
are
embedded.
Fostering
mobilization
expertise
across
critical
step
toward
slowing
loss.
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(12)
Published: March 4, 2024
The
green-up
of
vegetation
in
spring
brings
a
pulse
food
resources
that
many
animals
track
during
migration.
However,
phenology
is
changing
with
climate
change,
posing
an
immense
challenge
for
species
time
their
migrations
to
coincide
these
resource
pulses.
We
evaluated
changes
from
2002
2021
relation
the
150
Western-Hemisphere
bird
using
eBird
citizen
science
data.
found
has
changed
within
migration
routes,
and
yet
most
align
more
closely
long-term
averages
than
current
conditions.
Changing
strongly
influenced
phenological
mismatches,
especially
longer-distance
migrants.
These
results
reveal
may
have
limited
flexibility
adjust
emphasize
mounting
migratory
face
following
en
route
climate.
Journal of Biogeography,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
ABSTRACT
The
tropical
Andes
face
unprecedented
warming
and
shifting
precipitation
patterns
due
to
climate
change
land‐use
alteration,
challenging
the
future
of
Andean
forests.
During
Quaternary,
many
trees
responded
through
upslope
migrations
but,
while
there
is
evidence
such
ongoing
in
species,
they
are
at
rates
far
below
what
needed
remain
equilibrium
with
current
climate.
Similarly,
given
number
generations
required
for
adaptation
long
lifespans
trees,
it
unlikely
that
most
species
will
be
able
adapt
fast
enough.
This
synthesis
explores
role
migration‐induced
secondary
contact
hybridisation
as
potential
mechanisms
accelerating
adaptive
response
Hybridisation,
historically
underappreciated
increasingly
recognised
an
important
driver
speciation
ecological
diversity.
It
may
facilitate
gene
flow
introgression,
providing
novel
genetic
combinations
enhance
resilience
change.
process
can
generate
new
allelic
diversity,
allowing
more
rapidly
than
mutation
or
selection
on
standing
variation
alone.
However,
also
lead
negative
outcomes
like
swamping
outbreeding
depression.
Conservation
strategies
should
consider
benefits
risks
maintaining
biodiversity
under
changing
environmental
conditions.
As
habitat
fragmentation
deforestation
exacerbate
challenges
faced
by
these
forests,
preserving
connectivity
crucial
migration
flow,
potentially
aiding
survival
tree
Anthropocene.
PLOS Climate,
Journal Year:
2023,
Volume and Issue:
2(3), P. e0000174 - e0000174
Published: March 14, 2023
Mountains
hold
much
of
the
world’s
taxonomic
diversity,
but
global
climate
change
threatens
this
diversity
by
altering
distributions
montane
species.
While
numerous
studies
have
documented
upslope
shifts
in
elevational
ranges,
these
patterns
are
highly
variable
across
geographic
regions
and
taxa.
This
variation
how
species’
range
manifesting
along
gradients
likely
reflects
mechanisms
that
determines
ranges
modulates
movements,
stands
contrast
to
latitudinal
gradients,
where
show
less
variability
appear
more
predictable.
Here,
we
review
observed
a
single
group–birds–a
group
has
received
substantial
research
attention
thus
provides
useful
context
for
exploring
while
controlling
drive
broader
groups.
We
then
explore
abiotic
biotic
factors
known
define
as
well
constraints
may
prevent
birds
from
shifting.
Across
literature,
temperature
is
generally
invoked
prime
driver
role
precipitation
neglected.
However,
act
directly
on
instead
mediating
such
habitat
food
availability,
predator
activity,
parasite
prevalence,
which
could
turn
modulate
shifts.
Dispersal
ability
places
an
intrinsic
constraint
shifts,
exacerbated
fragmentation.
current
strong
evidence
importance
various
drivers
testing
relative
achieving
holistic
view
will
require
integration
expanding
datasets,
novel
technologies,
innovative
techniques.
Science,
Journal Year:
2024,
Volume and Issue:
385(6706), P. 331 - 336
Published: July 18, 2024
Animals
can
adjust
their
diet
to
maximize
energy
or
nutritional
intake.
For
example,
birds
often
target
fruits
that
match
beak
size
because
those
be
consumed
more
efficiently.
We
hypothesized
pressure
optimize
diet-measured
as
matching
between
fruit
and
size-increases
under
stressful
environments,
such
determine
species'
range
edges.
Using
fruit-consumption
trait
information
for
97
frugivorous
bird
831
plant
species
across
six
continents,
we
demonstrate
feed
frequently
on
closely
size-matched
near
geographic
limits.
This
pattern
was
particularly
strong
highly
birds,
whereas
opportunistic
frugivores
showed
no
tendency.
These
findings
highlight
how
frugivore
interactions
might
respond
conditions
reveal
may
not
predict
resource
use
consistently.
Trends in Ecology & Evolution,
Journal Year:
2023,
Volume and Issue:
38(12), P. 1177 - 1188
Published: Sept. 1, 2023
We
explore
how
integrating
behavioural
ecology
and
macroecology
can
provide
fundamental
new
insight
into
both
fields,
with
particular
relevance
for
understanding
ecological
responses
to
rapid
environmental
change.
outline
the
field
of
macrobehaviour,
which
aims
unite
these
disciplines
explicitly,
highlight
examples
research
in
this
space.
Macrobehaviour
be
envisaged
as
a
spectrum,
where
ecologists
macroecologists
use
data
borrow
tools
approaches
from
one
another.
At
heart
interdisciplinary
considers
selection
context
large-scale
factors
lead
systematic
patterns
variation
across
space,
time,
taxa,
turn,
influence
macroecological
processes.
has
potential
enhance
forecasts
future
biodiversity
Ethology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 3, 2025
ABSTRACT
Temperature
mediates
performance
in
ectotherms,
affecting
their
ability
to
grow,
survive,
and
reproduce.
Aggression
evasion
are
key
examples
of
thermally
dependent
behaviors
that
can
impact
fitness.
However,
we
know
relatively
little
about
how
the
thermal
plasticity
such
varies
among
close
relatives
impacts
competitive
outcomes.
Woodland
salamanders
(Genus:
Plethodon
)
from
Appalachian
Mountains
distributed
across
wide
gradients
accordance
with
latitude
or
elevation.
These
plethodontid
(lungless)
compete
for
space
develop
hybrid
zones
where
territories
overlap
species.
Plethodontids
tend
exhibit
increased
aggression
at
warmer
temperatures,
suggesting
as
temperatures
rise,
behavioral
interactions
may
be
altered
ways
zone
dynamics.
It
is
thus
far
unclear,
however,
salamander
hybrids,
which
encroach
on
parent
populations
drive
exclusion,
respond
behaviorally
warming.
Here,
used
staged
bouts
examine
effects
temperature
shermani
teyahalee
system
southern
Appalachians.
The
behavior
populations,
particularly
P.
,
appears
more
sensitive
changes
than
individuals.
Additionally,
evasive
was
significantly
plastic
aggressive
response
Our
results
suggest
rising
increase
competition
preferable
microhabitats,
but
parental
will
asymmetric.
therefore
alter
outcomes
competition,
determining
persist
under
rapid