Forests,
Journal Year:
2025,
Volume and Issue:
16(5), P. 747 - 747
Published: April 27, 2025
Mangrove
forests
are
among
the
most
productive
vascular
plants
on
Earth.
The
gross
(GPP)
and
aboveground
forest
net
primary
production
(ANPP)
correlate
positively
with
precipitation.
ANPP
also
correlates
inversely
porewater
salinity.
main
drivers
of
salinity,
rainfall,
tidal
inundation
frequency,
light
intensity,
humidity,
species
age
composition,
temperature,
nutrient
availability,
disturbance
history,
geomorphological
setting.
Wood
temperature
rates
comparable
to
tropical
humid
forests.
Litterfall
accounts
for
55%
NPP
which
is
greater
than
previous
estimates.
fine
root
highest
in
deltas
estuaries
lowest
carbonate
open-ocean
settings.
GPP
exhibit
large
methodological
regional
differences,
but
mangroves
several
times
more
other
coastal
blue
carbon
habitats,
excluding
macroalgal
beds.
Mangroves
contribute
4
28%
fluxes.
mean
median
canopy
respiration
equate
1.7
2.7
g
C
m−2
d−1,
respectively,
higher
ecosystem
fluxes
currently
balance.
However,
global
mangrove
has
increased
from
2001
2020
forecast
continue
increasing
at
least
2100
due
strong
fertilization
effect
rising
atmospheric
CO2
concentrations.
Oikos,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 24, 2025
The
increasing
species–area
relationship
(SAR)
is
a
nearly
universal
ecological
law.
But
recent
theory
has
predicted
that
in
systems
with
low
large‐scale
diversity
the
law
should
be
violated
and
SAR
flat
at
intermediate
scales,
species
richness
roughly
constant
some
value
typically
greater
than
one.
We
tested
this
prediction
using
global
dataset
of
mangrove
trees
–
species‐poor
group.
used
published
tree
distributions
to
construct
an
spanning
local
scales.
found
over
large
range
scales
(≈10
−4
10
6
km
2
)
was
close
flat,
stark
contrast
classical
power‐law
SAR,
which
would
predict
300‐fold
change
these
Importantly,
not
simply
equal
minimum
one
or
maximum
either
possibilities
reconcilable
theory,
but
instead
maintained
average
between
two
three
species.
Our
theoretical
interpretation
results
there
are
stabilising
niches
(i.e.
allow
stably
coexist
without
substantial
immigration)
for
typical
coastal
settings
immigrant
propagule
most
cases
too
(because
metacommunity
diversity)
more
niches.
Only
≈
immigrants
sufficient
yield
speculate
other
systems,
niche
may
similarly
phase
hidden
by
immigration
from
diverse
source
pools.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 22, 2025
Abstract
Estimating
the
biomass
of
terrestrial
forests
generally,
and
mangrove
in
particular,
is
an
area
considerable
interest.
Most
approaches
rely
on
empirically
derived
allometric
models
to
predict
tree
biomass.
The
single
parameter
with
strongest
predictive
ability
most
studies
diameter
at
breast
height
(DBH),
however
use
DBH
arose
primarily
out
convenience,
not
from
analysis
form.
While
explains
a
lot
variability
other
metrics
such
as
or
above
ground
biomass,
its
utility
smaller
species
uncertain.
Here
we
used
measurements
302
destructively
sampled
trees
four
test
which
three
bole
measurements,
basal
stem
(BSD),
30
cm
(D30),
DBH,
best
predictor
D30
had
highest
mean
coefficient
determination
(
R
2
)
lowest
root
squared
error
(RMSE)
across
all
site/species
combinations.
However,
improvement
over
was
modest,
combinations
1.58
kg
RMSE
0.948
for
D30,
compared
1.63
0.917
DBH.
Nevertheless,
may
have
future
it
allows
lower
size
thresholds
has
better
overall
explanatory
power
than
Forests,
Journal Year:
2025,
Volume and Issue:
16(5), P. 747 - 747
Published: April 27, 2025
Mangrove
forests
are
among
the
most
productive
vascular
plants
on
Earth.
The
gross
(GPP)
and
aboveground
forest
net
primary
production
(ANPP)
correlate
positively
with
precipitation.
ANPP
also
correlates
inversely
porewater
salinity.
main
drivers
of
salinity,
rainfall,
tidal
inundation
frequency,
light
intensity,
humidity,
species
age
composition,
temperature,
nutrient
availability,
disturbance
history,
geomorphological
setting.
Wood
temperature
rates
comparable
to
tropical
humid
forests.
Litterfall
accounts
for
55%
NPP
which
is
greater
than
previous
estimates.
fine
root
highest
in
deltas
estuaries
lowest
carbonate
open-ocean
settings.
GPP
exhibit
large
methodological
regional
differences,
but
mangroves
several
times
more
other
coastal
blue
carbon
habitats,
excluding
macroalgal
beds.
Mangroves
contribute
4
28%
fluxes.
mean
median
canopy
respiration
equate
1.7
2.7
g
C
m−2
d−1,
respectively,
higher
ecosystem
fluxes
currently
balance.
However,
global
mangrove
has
increased
from
2001
2020
forecast
continue
increasing
at
least
2100
due
strong
fertilization
effect
rising
atmospheric
CO2
concentrations.