Kelp forests versus urchin barrens: a comparison of ecosystem functions and services provided by two alternative stable marine habitats
Proceedings of the Royal Society B Biological Sciences,
Journal Year:
2024,
Volume and Issue:
291(2034)
Published: Nov. 1, 2024
Kelp
forests
and
urchin
barrens
are
two
stable
states
in
rocky
reef
ecosystems,
each
providing
unique
ecosystem
functions
like
habitat
for
marine
species
primary
production.
While
studies
frequently
show
that
kelp
support
higher
levels
of
some
than
barren
habitats,
no
research
has
yet
compared
average
differences.
To
address
this
gap,
we
first
conducted
a
meta-analysis
directly
the
functions,
services
general
attributes
provided
by
habitat.
We
also
compiled
individual
on
properties
from
both
habitats
qualitatively
assessed
benefits
provided.
The
included
388
observations
55
across
14
countries.
found
consistently
delivered
such
as
biodiversity,
richness,
abalone
abundance
sea
roe
quality.
Urchin
supported
density
crustose
coralline
algae
cover.
qualitative
review
further
these
findings,
showing
ranked
11
out
15
properties.
These
findings
can
help
guide
decisions
managing
demonstrate
preserving
or
expanding
forests.
Language: Английский
Coastal marine heatwaves in the Santa Barbara Channel: decadal trends and ecological implications
Frontiers in Marine Science,
Journal Year:
2024,
Volume and Issue:
11
Published: Dec. 16, 2024
Marine
heatwaves
(MHWs)
are
of
increasing
concern
due
to
the
emerging
ecological
and
socioeconomic
impacts
on
coastal
ecosystems.
Leveraging
data
Santa
Barbara
Coastal
Long-Term
Ecological
Research
project,
we
analyzed
MHW
event
metrics
observed
in
kelp
forest
ecosystem
across
Channel,
CA,
USA.
Not
only
was
there
a
significant
positive
trend
number
MHWs
recorded,
their
duration
intensity
were
also
over
time.
detected
year-round,
suggesting
that
marine
organisms
have
exposure
risks
regardless
phenology.
Exposure
at
one
life
history
stage
could
legacy
effect
subsequent
stages,
implying
little
temporal
refuge.
In
contrast,
mooring
revealed
near-surface
bottom
events
not
necessarily
coupled
even
less
than
15
m.
Such
spatial
variation
might
provide
temporary
refuge
for
mobile
species.
These
observations
highlight
importance
depth-stratified,
long-term
monitoring
understand
spatio-temporal
stress
communities.
Language: Английский