Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 3, 2023
Abstract
Deforestation
impacts
the
benefits
coral
reefs
provide
to
coastal
communities
in
multiple
ways.
Yet,
connections
between
terrestrial
and
marine
ecosystems
are
generally
assessed
at
a
single
scale
from
an
ecological
perspective
alone.
This
limits
understanding
of
societal
outcomes
distributional
effects
watershed
interventions.
We
employ
linked
land-sea
ecosystem
service
models
Mesoamerican
Reef
region
explore
how
management
(restoration,
protection,
sustainable
agriculture)
regional
country
scales
influences
where
prioritize
actions
delivery
benefits.
With
perspective,
interventions
prioritized
larger
transboundary
watersheds,
resulting
more
sediment
retention
healthier
for
neighboring
nations.
At
scale,
non-transboundary,
often
smaller,
watersheds
targeted,
leading
decreased
risk,
increased
tourism
fisheries
each
nation
individually.
Our
findings
highlight
effect
on
social
across
within
identify
win-win
strategies
that
can
improve
forests
health
while
generating
communities.
Diversity and Distributions,
Journal Year:
2022,
Volume and Issue:
28(11), P. 2429 - 2442
Published: Oct. 9, 2022
Abstract
Aim
Fires
can
severely
impact
aquatic
fauna,
especially
when
attributes
of
soil,
topography,
fire
severity
and
post‐fire
rainfall
interact
to
cause
substantial
sedimentation.
Such
events
immediate
mortality
longer‐term
changes
in
food
resources
habitat
structure.
Approaches
for
estimating
impacts
on
terrestrial
species
(e.g.
intersecting
extent
with
distributions)
are
inappropriate
as
sedimentation
carry
well
downstream
the
extent,
occur
long
after
fire.
Here,
we
develop
an
approach
spatial
systems,
across
multiple
catchments.
Location
Southern
Australian
bioregions
affected
by
fires
2019–2020
that
burned
>10
million
ha
temperate
subtropical
forests.
Methods
We
integrated
existing
soil
erosion
model
mapping
data
estimate
threat
waterways
basins
potential
exposure
this
threat.
validated
against
field
observations
2019–20
fires.
Results
While
overlapped
~27,643
km
waterways,
potentially
occurred
~40,449
km.
In
total,
55%
(
n
=
85)
154
study
region
may
have
experienced
Ten
species—including
six
Critically
Endangered—were
threatened
100%
their
range.
The
increased
estimates
impact,
compared
considering
alone,
>80%
species.
Some
had
distributions
did
not
overlap
but
were
entirely
exposed
Conclusions
Compared
species'
ranges,
our
improves
fire‐related
threats
fauna
capturing
complexities
hydrological
systems.
provides
a
method
quickly
future
any
fire‐prone
region,
thus
improving
conservation
assessments
informing
emergency
management
interventions.
Environmental Pollution,
Journal Year:
2023,
Volume and Issue:
342, P. 123003 - 123003
Published: Nov. 29, 2023
Coral
reefs
are
one
of
the
most
valuable
yet
threatened
ecosystems
in
world.
Improving
human
wastewater
treatment
could
reduce
land-based
impacts
on
coral
reefs.
However,
information
quantity
and
spatial
distribution
pollution
is
lacking.
Here,
we
develop
a
model
linking
residential
(nitrogen
phosphorus/year)
conservation
sectors
[coral
reefs]
to
better
understand
relative
differences
efficacy
different
sanitation
services
their
potential
implications
for
monitoring
management.
We
apply
our
Fiji,
where
ongoing
initiatives
investments
health
be
leveraged
cost-effectively
improve
reef
condition.
estimate
that
plants
account
nearly
80%
nutrients
released
into
surface
waters.
Nutrient
widespread,
affecting
95%
reefs,
but
concentrated
across
few
watersheds.
Our
spatially
explicit
approach
can
used
benefits
trade-offs
between
service
improvements
health,
helping
bridge
as
well
inform
prioritize
ground
action.
The
health
and
integrity
of
coral
reef
ecosystems
are
in
decline
worldwide
due
to
an
increasing
suite
human
activities,
which
threaten
biodiversity
wellbeing.
One
the
major
drivers
ecosystem
is
poor
water
quality
from
activities
on
land.
Land-based
pollutants
travel
downstream
via
watersheds
-
through
groundwater
flow
land
areas
drained
by
streams
–
funnelled
into
coastal
environments.
There
now
ample
evidence
linkages
between
elevated
levels
discharged
marine
ecosystems.
also
a
growing
understanding
myriad
often
interacting
impacts
these
have
critical
services
they
provide
for
associated
dependent
communities.
This
white
paper
reviews
landbased
runoff
ecosystems,
with
four
specific
objectives
to:
(1)
review
how
sediments,
nutrients,
chemicals,
pathogens
affect
corals
reef-associated
organisms
at
variety
life
stages;
(2)
assess
processes
impact
populations;
(3)
identify
existing
knowledge
needs;
(4)
science-based
management
options.
Improving
upstream
within
has
great
potential
alleviate
severe
local
threats
preserve
functions
(e.g.,
tourism,
fisheries,
protection).
can
reduce
disease
risk
increase
vital
biological
needed
grow
reproduction),
improves
resilience
global
such
as
climate
change.
Yet,
despite
breadth
research
demonstrating
land-sea
health,
there
few
standout
examples
successful
improvements
condition
that
be
directly
linked
action.
largely
because
investments
both
interventions
monitoring
need
large
scale
sustained
over
long
(i.e.,
decadal)
periods
detect
measurable
impacts.
resulting
flowing
onto
direct
declining
include:
enhanced
transmission
diseases
gastrointestinal
upper
respiratory
diseases);
reduced
food
availability
nutritional
deficit
fisheries
habitat;
poisoning
consumption
seafood
contaminated
pathogens.
Poor
consequently
contributor
burdens
conservatively
estimated
cost
12
billion
USD
economic
losses
annually,
disproportionately
borne
poorest
countries
(Alhamlan
et
al.
2015).
overlapping
watershed
alteration
provides
opportunity
create
strategic
will
address
goals
conservation
public
sectors
enhance
outcomes.
presents
innovative
solutions
incentivize
large-scale,
action
required
improve
prevent
use
holistic
approaches
integrated
bridge
social
ecological
systems
important
co-benefits
Focusing
combined
economic,
wellbeing
across
motivate
leverage
investment
result
multiple
sectors.
Designing
appropriate
solutions,
therefore,
requires
taking
multi-sector,
approach,
accounts
systems,
collaboration
environmental,
agricultural,
water,
sanitation
hygiene
(WASH)
sectors,
interface.
Having
wide
range
informed
stakeholders
sharing
resources
approach
assist
buffering
risks
more
effective
proactive
governance.
We
several
recommendations
key
actions
promote
outcomes
nature
people
improved
management:
-Undertake
assessments
main
sources
land-based
consider
where
overlap
especially
context
future
change
scenarios.
-Ensure
engagement
full
actors,
landowners,
beneficiaries
boundaries
platforms
transparent,
participatory
planning,
decision-making.
-Develop
guidance
materials
integrate
management,
WASH
planning.
-Engage
and/or
establish
multi-sector
authorities
commissions)
mandate
coordinate
resource
users/managers,
logging,
mining,
policy
gap
analysis
implementation
policies
opportunities
strengthen
best-practice
guidelines
including
production,
wastewater
treatment
properly
account
-Conduct
synthesis
quantity
data
available
thresholds
indicators
make
information
easily
accessible
open-source
database)
support
assessment
programs.
-Develop/enhance
sustainable
financing
mechanisms,
private
sector
engagement,
business
case
studies
mobilization
strategies,
implement
phased,
nested
scales.
-Advocate
places
pollution
likely
undermine
other
being
implemented
protected
areas).
-Document
process
developing
implementing
strategies
order
communication
broader
conservation,
communities
lessons
learned.