The relationships between species age and range size
Journal of Biogeography,
Journal Year:
2024,
Volume and Issue:
51(6), P. 1095 - 1103
Published: Feb. 5, 2024
Abstract
Species
range
size
is
a
central
topic
in
macroecology,
biogeography
and
conservation
biology.
age
has
been
frequently
regarded
as
contributor
to
previous
studies
on
size,
but
this
rarely
specifically
examined.
Using
global
data
from
four
living
terrestrial
vertebrate
classes
(birds,
mammals,
reptiles
amphibians)
case
study,
we
examine
how
species
might
be
related
at
scale.
We
found
statistically
significant
positive,
albeit
weak,
age–range
relationships
for
all
groups.
However,
although
the
were
with
young
ages
had
very
different
sizes
(both
large
small),
those
old
always
small
ranges.
The
observed
more
complex
than
expected.
rather
strong,
could
because
our
set
included
stages
of
their
life
spans
(durations)
that
are
either
expanding
or
fluctuating
contracting,
which
would
necessarily
have
minimized
cancelled
relationship
when
group
considered
collectively.
Our
findings
shed
new
light
temporal
dimension
macroecological
correlates
Language: Английский
Large range sizes link fast life histories with high species richness across wet tropical tree floras
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 8, 2025
Understanding
how
the
traits
of
lineages
are
related
to
diversification
is
key
for
elucidating
origin
variation
in
species
richness.
Here,
we
test
whether
richness
among
trees
from
all
major
biogeographical
settings
lowland
wet
tropics.
We
explore
mortality
rate,
breeding
system
and
maximum
diameter
richness,
either
directly
or
via
associations
with
range
size,
463
genera
that
contain
tropical
forest
trees.
For
Amazonian
genera,
also
mean
species-level
size.
Lineages
higher
rates—faster
life-history
strategies—have
larger
ranges
biogeographic
have
sizes
Amazonia.
These
smaller
diameters
and,
Americas,
dioecious
species.
In
turn,
greater
overall
size
Our
results
show
fast
strategies
influence
because
these
ecological
sizes.
links
suggest
dispersal
has
been
a
process
evolution
flora.
Language: Английский
Dispersal‐related plant traits are associated with range size in the Atlantic Forest
Diversity and Distributions,
Journal Year:
2024,
Volume and Issue:
30(7)
Published: May 28, 2024
Abstract
Aim
The
efficiency
of
animal‐mediated
seed
dispersal
is
threatened
by
the
decline
animal
populations,
especially
in
tropical
forests.
We
hypothesise
that
large‐seeded
plants
with
tend
to
have
limited
geographic
ranges
and
face
an
increased
risk
extinction
due
potential
large‐bodied
fruit‐eating
seed‐dispersing
animals
(frugivores).
Location
Atlantic
Forest,
Brazil,
South
America.
Taxon
Angiosperms.
Methods
First,
we
collected
dispersal‐related
traits
(dispersal
syndrome,
fruit
size,
size),
growth
form
(tree,
climber,
other)
preferred
vegetation
type
(open
closed)
data
for
1052
Forest
plant
species.
Next,
integrated
these
occurrence
records,
assessments,
phylogenetic
trees.
Finally,
performed
generalised
least
squares
regressions
test
direct
interactive
effects
on
geographical
range
size.
Results
Large‐seeded
species
had
smaller
sizes
than
small‐seeded
species,
but
only
dispersal,
not
those
dispersed
abiotic
mechanisms.
However,
overall
dispersal.
Furthermore,
found
restricted
forests
occurring
open
or
mixed
vegetation.
at
29%
flora
extinction,
this
was
related
syndromes.
Main
Conclusions
may
be
suffering
from
limitation,
potentially
past
ongoing
defaunation
frugivores,
leading
small
sizes.
Other
factors,
such
as
deforestation
fragmentation,
will
probably
modulate
ultimately
extinction.
Our
study
sheds
light
relationship
between
traits,
mutualistic
interactions,
distribution
are
key
functioning
Language: Английский
Challenges in estimating species' age from phylogenetic trees
Global Ecology and Biogeography,
Journal Year:
2024,
Volume and Issue:
33(10)
Published: July 4, 2024
Abstract
Aim
Species
age,
the
elapsed
time
since
origination,
can
give
insight
into
how
species
longevity
might
influence
eco‐evolutionary
dynamics,
which
has
been
hypothesized
to
extinction
risk.
Traditionally,
species'
ages
have
estimated
from
fossil
records.
However,
numerous
studies
recently
used
branch
lengths
of
time‐calibrated
phylogenies
as
estimates
extant
species.
This
approach
poses
problems
because
phylogenetic
trees
only
contain
direct
information
about
identity
at
tips
and
not
along
branches.
Here,
we
show
that
incomplete
taxon
sampling,
different
assumptions
speciation
modes
significantly
alter
relationship
between
true
age
lengths,
leading
high
error
rates.
We
found
these
biases
lead
erroneous
interpretations
patterns
derived
comparing
other
traits,
such
Innovation
For
bifurcating
speciation,
default
assumption
in
most
analyses
propose
a
probabilistic
based
on
properties
birth–death
process
improve
estimation
ages.
Our
reduce
by
one
order
magnitude
under
cases
percentage
unsampled
Main
conclusion
results
call
for
caution
interpreting
this
biased
conclusions.
that,
obtain
unbiased
approximations
combining
with
expectations
process.
Language: Английский
Recent Origin of a Range‐Restricted Species With Subsequent Introgression in its Widespread Congener in the Phyteuma spicatum Group (Campanulaceae)
Molecular Ecology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
ABSTRACT
Understanding
the
causes
of
restricted
geographic
distributions
is
major
interest
to
evolutionary
and
conservation
biologists.
Inferring
historical
factors
has
often
relied
on
ad
hoc
interpretations
genetic
data,
hypothesis
testing
within
a
statistical
framework
under
different
demographic
scenarios
remains
underutilised.
Using
coalescent
modelling
RAD‐sequencing
we
(i)
test
hypotheses
about
origin
Phyteuma
gallicum
(Campanulaceae),
range‐restricted
endemic
central
France
sympatric
with
its
widespread
congener
Ph.
spicatum
,
(ii)
date
origin,
irrespective
mode
that
range
due
recent
time
origin.
The
best
supported
model
one
dichotomous
split
confirmed
as
distinct
species,
Central
European
nigrum
subsequent
gene
flow
between
.
estimated
at
45–55,000
years
ago.
Coalescent
genomic
data
not
only
clarified
(dichotomous
speciation
instead
previously
hypothesised
hybridogenic
origin)
but
also
identified
recency
sufficient,
although
likely
sole,
factor
explain
distribution
range.
strongly
improves
our
understanding
evolution
species
are
frequently
concern,
case
for
Language: Английский
Challenges in estimating species age from phylogenetic trees
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Nov. 19, 2023
Abstract
Aim
Species
age,
the
elapsed
time
since
origination,
can
give
an
insight
into
how
species
longevity
might
influence
eco-evolutionary
dynamics
and
has
been
hypothesized
to
extinction
risk.
Traditionally,
ages
have
measured
in
fossil
record.
However,
recently,
numerous
studies
attempted
estimate
of
extant
from
branch
lengths
time-calibrated
phylogenies.
This
approach
poses
problems
because
phylogenetic
trees
contain
direct
information
about
identity
only
at
tips
not
along
branches.
Here,
we
show
that
incomplete
taxon
sampling,
extinction,
different
assumptions
speciation
modes
significantly
alter
relationship
between
true
age
lengths,
leading
high
error
rates.
We
found
these
biases
lead
erroneous
interpretations
patterns
derived
comparison
other
traits,
such
as
Innovation
For
bifurcating
speciation,
which
is
default
assumption
most
analyses,
propose
a
probabilistic
improve
estimation
ages,
based
on
properties
birth-death
process.
our
model
reduce
by
one
order
magnitude
under
cases
percentage
unsampled
species.
Main
conclusion
Our
results
call
for
caution
interpreting
this
biased
conclusions.
that,
bifurcate,
it
possible
obtain
better
approximations
combining
with
expectations
Language: Английский