The American Naturalist,
Journal Year:
2024,
Volume and Issue:
204(5), P. E99 - E114
Published: July 25, 2024
AbstractUnderstanding
patterns
of
diversification
necessarily
requires
accounting
for
both
the
generation
and
persistence
species.
Formal
models
speciation
genetics,
however,
focus
on
new
species
without
explicitly
considering
maintenance
biodiversity
(e.g.,
coexistence,
ecological
studies
diversity).
Consequently,
it
remains
unclear
whether
how
will
coexist
following
a
event,
gap
limiting
our
ability
to
understand
rate-limiting
controls
over
macroevolutionary
timescales.
To
connect
coexistence
theory
assess
relative
importance
versus
genetic
constraints
in
events,
we
develop
deterministic,
three-locus,
population-genetic
model
that
includes
skewed
distribution
available
resources
(to
generate
variation
fitness
differences),
frequency-dependent
competition,
assortative
mating.
Both
ecology
genetics
play
vital
interacting
roles
shaping
initial
events
long-term
eco-evolutionary
outcomes.
Ecological
are
especially
important
when
differences
large
competition
strong
among
dissimilar
phenotypes.
Ephemeral
can
occur
typically
lost
because
competitive
exclusion,
result
demonstrating
may
serve
as
control
rates.
More
broadly,
adds
evidence
unification
evolutionary
(including
genetic)
perspectives
is
needed
predict
large-scale
patterns.
Ecology Letters,
Journal Year:
2024,
Volume and Issue:
27(2)
Published: Feb. 1, 2024
Species
interactions
are
key
drivers
of
biodiversity
and
ecosystem
stability.
Current
theoretical
frameworks
for
understanding
the
role
make
many
assumptions
which
unfortunately,
do
not
always
hold
in
natural,
diverse
communities.
This
mismatch
extends
to
annual
plants,
a
common
model
system
studying
coexistence,
where
typically
averaged
across
environmental
conditions
transitive
competitive
hierarchies
assumed
dominate.
We
quantify
interaction
networks
community
wildflowers
Western
Australia
natural
shade
gradient
at
local
scales.
Whilst
competition
dominated,
intraspecific
interspecific
facilitation
were
widespread
all
categories.
Interaction
strengths
directions
varied
substantially
despite
close
spatial
proximity
similar
levels
species
richness,
with
most
interacting
different
ways
under
conditions.
Contrary
expectations,
predominantly
intransitive.
These
findings
encourage
us
rethink
how
we
conceive
categorize
mechanisms
driving
plant
systems.
New Phytologist,
Journal Year:
2023,
Volume and Issue:
238(6), P. 2271 - 2283
Published: Feb. 8, 2023
Summary
Plant
water
use
theory
has
largely
been
developed
within
a
plant‐performance
paradigm
that
conceptualizes
in
terms
of
value
for
carbon
gain
and
sits
neoclassical
economic
framework.
This
works
very
well
many
contexts
but
does
not
consider
other
values
to
plants
could
impact
their
fitness.
Here,
we
survey
range
alternative
hypotheses
drivers
stomatal
regulation.
These
are
organized
around
relevance
extreme
environments,
population
ecology,
community
ecology.
Most
these
yet
empirically
tested
some
controversial
(e.g.
requiring
more
agency
behavior
than
is
commonly
believed
possible
plants).
Some
hypotheses,
especially
those
focused
using
avoid
thermal
stress,
promote
reproduction
instead
growth,
hoard
it,
may
be
useful
incorporate
into
or
implement
Earth
System
Models.
Ecology Letters,
Journal Year:
2024,
Volume and Issue:
27(5)
Published: April 29, 2024
Abstract
Species
interact
in
different
ways,
including
competition,
facilitation
and
predation.
These
interactions
can
be
non‐linear
or
higher
order
may
depend
on
time
species
densities.
Although
these
higher‐order
are
virtually
ubiquitous,
they
remain
poorly
understood,
as
challenging
both
theoretically
empirically.
We
propose
to
adapt
niche
fitness
differences
from
modern
coexistence
theory
apply
them
over
time.
As
such,
not
merely
inform
about
coexistence,
but
provide
a
deeper
understanding
of
how
change.
Here,
we
investigated
the
exploitation
biotic
resource
(plant)
by
phytophagous
arthropods
affects
their
interactions.
performed
monoculture
competition
experiments
fit
generalized
additive
mixed
model
empirical
data,
which
allowed
us
calculate
differences.
found
that
switch
between
types
time,
intra‐
interspecific
facilitation,
strong
weak
competition.
Oikos,
Journal Year:
2024,
Volume and Issue:
2024(9)
Published: May 27, 2024
Competition
among
pollinators
for
floral
resources
is
a
phenomenon
of
both
basic
and
applied
importance.
While
competition
difficult
to
measure
directly
under
field
conditions,
it
can
be
inferred
indirectly
through
the
measurement
resource
depletion.
In
this
study,
we
conducted
pollinator
exclusion
experiment
calculate
nectar
depletion
rates
in
summer
across
16
grassland
sites
German
regions
Franconia
Saxony‐Anhalt.
Overall
were
estimated
at
95%
79%
Saxony‐Anhalt,
indicating
strong
limitation
likely
nectar.
Despite
being
ubiquitous
our
study
regions,
honey
bees
scarce
time
sampling.
This
demonstrates
that
wild
alone
are
capable
massive
depletion,
addition
managed
communities
may
intensify
already
competitive
conditions.
Nevertheless,
manifest
diversity
indicates
other
factors,
such
as
non‐trophic
constraints
or
temporal
variation
limitation,
mitigate
despite
immediate
conditions
acute
scarcity.
FEMS Microbiology Reviews,
Journal Year:
2022,
Volume and Issue:
46(6)
Published: June 24, 2022
Abstract
David
Schindler
and
his
colleagues
pioneered
studies
in
the
1970s
on
role
of
phosphorus
stimulating
cyanobacterial
blooms
North
American
lakes.
Our
understanding
nuances
utilization
by
cyanobacteria
has
evolved
since
that
time.
We
review
strategies
used
cyanobacteria,
such
as
use
organic
forms,
alternation
between
passive
active
uptake,
luxury
storage.
While
many
aspects
physiological
responses
to
have
been
measured,
our
critical
processes
drive
species
diversity,
adaptation
competition
remains
limited.
identify
persistent
knowledge
gaps,
particularly
low
nutrient
concentrations.
propose
traditional
discipline-specific
be
adapted
expanded
encompass
innovative
new
methodologies
take
advantage
interdisciplinary
opportunities
among
physiologists,
molecular
biologists,
modellers,
advance
prediction
toxic
ultimately
mitigate
occurrence
blooms.
Ecology Letters,
Journal Year:
2023,
Volume and Issue:
26(6), P. 831 - 842
Published: March 27, 2023
Theory
posits
that
the
persistence
of
species
in
ecological
communities
is
shaped
by
their
interactions
within
and
across
trophic
guilds.
However,
we
lack
empirical
evaluations
how
structure,
strength
sign
biotic
drive
potential
to
coexist
diverse
multi-trophic
communities.
Here,
model
community
feasibility
domains,
a
theoretically
informed
measure
multi-species
coexistence
probability,
from
grassland
comprising
more
than
45
on
average
three
guilds
(plants,
pollinators
herbivores).
Contrary
our
hypothesis,
increasing
complexity,
measured
either
as
number
or
richness,
did
not
decrease
feasibility.
Rather,
observed
high
degrees
self-regulation
niche
partitioning
allow
for
maintaining
larger
levels
higher
Our
results
show
are
random
nature
both
structures
significantly
contribute
diversity.
Ecology Letters,
Journal Year:
2024,
Volume and Issue:
27(6)
Published: June 1, 2024
Abstract
Most
ecological
models
are
based
on
the
assumption
that
species
interact
in
pairs.
Diverse
communities,
however,
can
have
higher‐order
interactions,
which
two
or
more
jointly
impact
growth
of
a
third
species.
A
pitfall
common
pairwise
approach
is
it
misses
interactions
potentially
responsible
for
maintaining
natural
diversity.
Here,
we
explore
stability
properties
systems
where
guarantee
specified
set
abundances
feasible
equilibrium
dynamics.
Even
these
lead
to
equilibria
do
not
necessarily
produce
stable
coexistence.
Instead,
likely
be
when
weak
facilitative.
Correlations
between
and
permit
robust
coexistence
even
diverse
systems.
Our
work
only
reveals
challenges
generating
through
but
also
uncovers
interaction
patterns
enable