Biodiversity and Conservation,
Год журнала:
2024,
Номер
33(2), С. 509 - 532
Опубликована: Янв. 5, 2024
Abstract
To
what
extent
is
the
relative
biodiversity
of
some
flagship
conservation
sites
a
result
differential
attention?
Knysna
estuarine
bay
topmost
ranked
South
African
estuary
for
importance
and
biodiversity.
It
also
one
most
intensively
studied,
hence
sampling
effort
could
partly
be
responsible
its
apparent
richness.
assess
to
which
this
might
true,
identical
area,
methodology
were
employed
compare
benthic
macrofauna
specific
major
habitat
(
Zostera
capensis
seagrass
beds)
with
equivalent
ones
in
two
nearby
lesser-studied
estuaries,
Keurbooms/Bitou
Swartvlei.
Investigation
showed
all
three
localities
share
common
species
pool,
but
different
elements
it
dominated
shared
type
each.
The
adjacent
sandflat
macrobenthos
proved
just
as
biodiverse
unprotected
Protected
Area
Knysna,
that
Swartvlei
(also
Area)
was
impoverished
comparison,
presumably
consequent
on
mouth
closure
prevailing
lower
salinity.
Despite
marked
geomorphological
hydrological
differences,
estuaries
suite
unusual
faunal
such
particularly
close
similarity
suggests
historical
biogeographic
processes.
analysis
emphasises
need
caution
when
assessing
or
other
merits
individual
systems
data-limited
environment.
Science,
Год журнала:
2023,
Номер
382(6670), С. 589 - 594
Опубликована: Ноя. 2, 2023
Restoring
vegetation
in
degraded
ecosystems
is
an
increasingly
common
practice
for
promoting
biodiversity
and
ecological
function,
but
successful
implementation
hampered
by
incomplete
understanding
of
the
processes
that
limit
restoration
success.
By
synthesizing
terrestrial
aquatic
studies
globally
(2594
experimental
tests
from
610
articles),
we
reveal
substantial
herbivore
control
under
restoration.
Herbivores
at
sites
reduced
abundance
more
strongly
(by
89%,
on
average)
than
those
relatively
undegraded
suppressed,
rather
fostered,
plant
diversity.
These
effects
were
particularly
pronounced
regions
with
higher
temperatures
lower
precipitation.
Excluding
targeted
herbivores
temporarily
or
introducing
their
predators
improved
magnitudes
similar
to
greater
achieved
managing
competition
facilitation.
Thus,
herbivory
a
promising
strategy
enhancing
efforts.
Plants People Planet,
Год журнала:
2024,
Номер
6(3), С. 587 - 603
Опубликована: Фев. 8, 2024
Societal
Impact
Statement
Seagrass
ecosystems
are
of
fundamental
importance
to
our
planet
and
wellbeing.
Seagrasses
marine
flowering
plants,
which
engineer
that
provide
a
multitude
ecosystem
services,
for
example,
blue
foods
carbon
sequestration.
have
largely
been
degraded
across
much
their
global
range.
There
is
now
increasing
interest
in
the
conservation
restoration
these
systems,
particularly
context
climate
emergency
biodiversity
crisis.
The
collation
100
questions
from
experts
Europe
could,
if
answered,
improve
ability
conserve
restore
systems
by
facilitating
shift
success
such
work.
Summary
meadows
numerous
services
including
biodiversity,
coastal
protection,
In
Europe,
seagrasses
can
be
found
shallow
sheltered
waters
along
coastlines,
estuaries
&
lagoons,
around
islands,
but
distribution
has
declined.
Factors
as
poor
water
quality,
modification,
mechanical
damage,
overfishing,
land‐sea
interactions,
change
disease
reduced
coverage
Europe’s
necessitating
recovery.
Research,
monitoring
efforts
on
seagrass
mostly
uncoordinated
biased
towards
certain
species
regions,
resulting
inadequate
delivery
critical
information
management.
Here,
we
aim
identify
priority
questions,
addressed
would
strongly
advance
monitoring,
research
Europe.
Using
Delphi
method,
researchers,
practitioners,
policymakers
with
experience
diverse
expertise
participated
process
involved
formulation
voting
an
online
workshop
final
list
questions.
covers
areas
nine
themes:
Biodiversity
Ecology;
Ecosystem
services;
Blue
carbon;
Fishery
support;
Drivers,
Threats,
Resilience
Response;
Monitoring
Assessment;
Conservation
Restoration;
Governance,
Policy
Management;
Communication.
Answering
will
fill
current
knowledge
gaps
place
European
onto
positive
trajectory
Remote Sensing of Environment,
Год журнала:
2023,
Номер
290, С. 113554 - 113554
Опубликована: Март 24, 2023
Monitoring
biodiversity
and
how
anthropogenic
pressures
impact
this
is
critical,
especially
as
anthropogenically
driven
climate
change
continues
to
affect
all
ecosystems.
Intertidal
areas
are
exposed
particularly
high
levels
of
owing
increased
population
density
in
coastal
areas.
Traditional
methods
monitoring
intertidal
do
not
provide
datasets
with
full
coverage
a
cost-effective
or
timely
manner,
so
the
use
remote
sensing
monitor
these
becoming
more
common.
ecologically
important
monospecific
habitats,
such
seagrass
beds,
using
techniques
well
documented.
However,
ability
for
multispectral
data
distinguish
efficiently
accurately
between
classes
vegetation
similar
pigment
composition,
green
algae,
has
proved
difficult,
often
requiring
hyperspectral
data.
A
machine
learning
approach
was
used
differentiate
soft-bottom
when
at
low
tide,
comparing
6
different
multi-
situ
sensors.
For
library
366
spectra,
collected
across
Northern
Europe,
accuracy
(>80%)
found
spectral
resolutions.
While
higher
resolution
resulted
accuracy,
there
no
discernible
increase
above
10
bands
(95%:
Sentinel-2
MSI
sensor
spatial
20
m).
This
work
highlights
sensors
discriminate
types,
while
also
showing
most
wavelengths
discrimination
(∼530
∼
730
nm),
giving
recommendations
ranges
future
satellite
missions.
The
aid
accurate
rapid
classification
taxonomic
classes,
could
be
significant
contribution
sustainable
effective
ecosystem
management.
Science,
Год журнала:
2023,
Номер
381(6665), С. 1440 - 1445
Опубликована: Сен. 28, 2023
Molecular
clocks
are
the
basis
for
dating
divergence
between
lineages
over
macroevolutionary
timescales
(~105
to
108
years).
However,
classical
DNA-based
tick
too
slowly
inform
us
about
recent
past.
Here,
we
demonstrate
that
stochastic
DNA
methylation
changes
at
a
subset
of
cytosines
in
plant
genomes
display
clocklike
behavior.
This
"epimutation
clock"
is
orders
magnitude
faster
than
and
enables
phylogenetic
explorations
on
scale
years
centuries.
We
show
experimentally
epimutation
recapitulate
known
topologies
branching
times
intraspecies
trees
self-fertilizing
Arabidopsis
thaliana
clonal
seagrass
Zostera
marina,
which
represent
two
major
modes
reproduction.
discovery
will
open
new
possibilities
high-resolution
temporal
studies
biodiversity.
Frontiers in Plant Science,
Год журнала:
2025,
Номер
15
Опубликована: Янв. 28, 2025
Seagrasses
are
a
paraphyletic
group
of
marine
angiosperms
and
retain
certain
adaptations
from
the
ancestors
all
embryophytes
in
transition
to
terrestrial
environments.
Among
these
is
production
flavonoids,
versatile
phenylpropanoid
secondary
metabolites
that
participate
variety
stress
responses.
Certain
features,
such
as
catalytic
promiscuity
metabolon
interactions,
allow
flavonoid
metabolism
expand
produce
novel
compounds
respond
stimuli.
As
environments
expose
seagrasses
unique
set
stresses,
plants
display
interesting
profiles,
functions
which
often
not
completely
clear.
Flavonoids
will
likely
prove
be
effective
agents
combating
new
host
conditions
introduced
by
anthropogenic
climate
change,
affects
differently
ones.
These
stresses
include
increased
sulfate
levels,
changes
salt
concentration,
herbivore
distributions,
ocean
acidification,
involve
flavonoids
response
mechanisms,
though
role
combatting
change
seldom
discussed
directly
literature.
can
also
used
assess
health
seagrass
meadows
through
an
interplay
between
simple
phenolic
may
useful
monitoring
change.
Studies
focusing
on
genetics
limited
for
this
group,
but
large
chalcone
synthase
gene
families
some
species
provide
topic
research.
Anthocyanins
typically
studied
separately
other
flavonoids.
The
phenomenon
reddening
focuses
importance
anthocyanins
UV-screening
mechanism,
while
cold
less
often.
Both
would
adaptation
change-induced
deviations
tidal
patterns
emersion.
However,
warming
lead
decrease
anthocyanin
content,
impact
performance
intertidal
seagrasses.
This
review
highlights
angiosperm
adaptation,
examines
research
seagrasses,
hypothesizes
organisms
under