Revisiting Clements and Gleason: Insights from plant distributions on Pikes Peak, Clements’s life-long study site
The American Naturalist,
Journal Year:
2024,
Volume and Issue:
204(6), P. 533 - 545
Published: Aug. 19, 2024
AbstractHow
do
species'
distributions
respond
to
their
environments?
This
question
was
at
the
heart
of
Clements-Gleason
controversy,
ecology's
most
famous
debate.
Do
species
environment
in
concerted
ways,
leading
distinct
and
cohesive
assemblages
(the
Clementsian
paradigm),
or
independently
Gleasonian
paradigm)?
Using
plant
occurrences
along
elevation
gradient
Pikes
Peak
(Colorado)
as
a
lens
through
which
gain
insight
into
Clements's
perspectives
on
debate,
we
formally
test
for
community
patterns
this
using
modern
framework
unavailable
time
Clements
Gleason.
The
region
study
area
more
than
40
years,
where
he
established
research
lab
distributed
sites
elevational
gradient.
His
investigations
mountain
likely
influenced
his
views
communities.
We
found
mixed
support
paradigms,
with
neither
paradigm
nor
fully
supported.
While
showed
evidence
clustering
range
edges,
considered
be
consistent
paradigm,
pattern
weak,
edges
turnover
peaked
ecotone
elevations,
expected
under
paradigm.
Our
results
illuminate
debate
by
allowing
us
probe
issues
that
complicate
conclusively
testing
such
deciding
how
quantify
environmental
gradients
determining
appropriate
scales
processes
might
generate
them.
Revisiting
also
revealed
Gleason's
had
common
realize.
may
less
neatly
resolved
assume
from
mythos,
it
continues
have
relevance
basic
applied
ecology
today,
its
legacy
has
shaped
our
(still
tenuous)
notion
ecological
communities
trajectory
field.
Language: Английский
Bumble bee niche overlap along an elevation gradient: how traits can inform novel competitive pressures under climate change
Oikos,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 10, 2024
Climate
change‐induced
range
shifts
can
disrupt
interactions
among
species
by
moving
them
in
and
out
of
ecological
communities.
These
disruptions
include
impacts
on
competition
for
shared
resources.
Bumble
bees
(
Bombus
spp.)
are
important
pollinators
shifting
their
upwards
elevation
response
to
climate
change.
could
lead
altered
threaten
co‐existence.
This
be
particularly
worrying
at
the
tops
mountain
ranges
where
bumble
may
no
longer
able
move
up
higher
elevations
track
To
better
understand
this
issue,
we
investigated
changes
diet
niche
overlap
bee
along
a
2296
m
gradient
southern
Rocky
Mountains.
Additionally,
how
morphological
phenological
traits
impact
composition
(flower
visited)
explored
simple
simulation
continued
upward
movement
under
change
into
mountaintop
affect
trait
newly
co‐occurring
species.
We
found
that
increased
with
elevation.
also
differences
(body
size,
tongue
length,
date
activity)
were
correlated
Finally,
described
co‐occurrence
from
lower
would
likely
more
sharing
similar
flowers.
high‐elevation
restricted
mountaintops
exacerbate
effects
bees.
Language: Английский