Diversity and Distributions,
Год журнала:
2021,
Номер
28(3), С. 463 - 478
Опубликована: Май 6, 2021
Abstract
Aim
Megafires
are
increasing
in
intensity
and
frequency
globally.
The
impacts
of
megafires
on
biodiversity
can
be
severe,
so
conservation
managers
must
able
to
respond
rapidly
quantify
their
impacts,
initiate
recovery
efforts
consider
options
within
beyond
the
burned
extent.
We
outline
a
framework
that
used
guide
responses
megafires,
using
1.5
million
hectare
2019/2020
Victoria,
Australia,
as
case
study.
Location
Australia.
Methods
Our
uses
suite
decision
support
tools,
including
species
attribute
databases,
~4,200
distribution
models
spatially
explicit
action
planning
tool
potential
effects
biodiversity,
identify
species‐specific
landscape‐scale
actions
assist
recovery.
Results
approach
identified
346
Victoria
had
>40%
modelled
habitat
affected
by
megafire,
45
threatened
species,
102
with
high
severity
fire.
then
21
candidate
expected
biodiversity.
For
relevant
actions,
we
locations
adjacent
megafire
extent
deliver
cost‐effective
gains.
Main
conclusion
south‐eastern
Australia
many
plant
communities.
range
single‐species
(e.g.,
supplementary
feeding,
translocation)
protection
refuges,
invasive
management)
help
recover
from
megafires.
Conservation
will
increasingly
required
especially
under
changing
climate.
brings
together
commonly
datasets
maps,
trait
fire
mapping)
future
across
world.
Effective
policies
to
halt
biodiversity
loss
require
knowing
which
anthropogenic
drivers
are
the
most
important
direct
causes.
Whereas
previous
knowledge
has
been
limited
in
scope
and
rigor,
here
we
statistically
synthesize
empirical
comparisons
of
recent
driver
impacts
found
through
a
wide-ranging
review.
We
show
that
land/sea
use
change
dominant
worldwide.
Direct
exploitation
natural
resources
ranks
second
pollution
third;
climate
invasive
alien
species
have
significantly
less
than
top
two
drivers.
The
oceans,
where
dominate,
different
hierarchy
from
land
fresh
water.
It
also
varies
among
types
indicators.
For
example,
is
more
community
composition
changes
populations.
Stopping
global
requires
actions
tackle
all
major
their
interactions,
not
some
them
isolation.
Ecography,
Год журнала:
2021,
Номер
44(9), С. 1259 - 1269
Опубликована: Июнь 21, 2021
Spatial
patterns
of
biodiversity
are
inextricably
linked
to
their
collection
methods,
yet
no
synthesis
bias
or
consequences
exists.
As
such,
views
organismal
distribution
and
the
ecosystems
they
make
up
may
be
incorrect,
undermining
countless
ecological
evolutionary
studies.
Using
742
million
records
374
900
species,
we
explore
global
impacts
biases
related
taxonomy,
accessibility,
ecotype
data
type
across
terrestrial
marine
systems.
Pervasive
sampling
observation
exist
animals,
with
only
6.74%
globe
sampled,
disproportionately
poor
tropical
sampling.
High
elevations
deep
seas
particularly
unknown.
Over
50%
in
most
groups
account
for
under
2%
species
citizen‐science
exacerbates
biases.
Additional
will
needed
overcome
many
these
biases,
but
must
increasingly
value
publication
bridge
this
gap
better
represent
species'
distributions
from
more
distant
inaccessible
areas,
provide
necessary
basis
conservation
management.
Nature Climate Change,
Год журнала:
2023,
Номер
13(5), С. 478 - 483
Опубликована: Март 16, 2023
Increasing
the
number
of
environmental
stressors
could
decrease
ecosystem
functioning
in
soils.
Yet
this
relationship
has
never
been
globally
assessed
outside
laboratory
experiments.
Here,
using
two
independent
global
standardized
field
surveys,
and
a
range
natural
human
factors,
we
test
between
exceeding
different
critical
thresholds
maintenance
multiple
services
across
biomes.
Our
analysis
shows
that,
stressors,
from
medium
levels
(>50%),
negatively
significantly
correlates
with
impacts
on
services,
that
crossing
high-level
threshold
(over
75%
maximum
observed
levels),
reduces
soil
biodiversity
globally.
The
>75%
was
consistently
seen
as
an
important
predictor
therefore
improving
prediction
functioning.
findings
highlight
need
to
reduce
dimensionality
footprint
ecosystems
conserve
function.
Philosophical Transactions of the Royal Society B Biological Sciences,
Год журнала:
2023,
Номер
378(1881)
Опубликована: Май 29, 2023
The
causes
of
biodiversity
change
are
great
scientific
interest
and
central
to
policy
efforts
aimed
at
meeting
targets.
Changes
in
species
diversity
high
rates
compositional
turnover
have
been
reported
worldwide.
In
many
cases,
trends
detected,
but
these
rarely
causally
attributed
possible
drivers.
A
formal
framework
guidelines
for
the
detection
attribution
is
needed.
We
propose
an
inferential
guide
analyses,
which
identifies
five
steps—causal
modelling,
observation,
estimation,
attribution—for
robust
attribution.
This
workflow
provides
evidence
relation
hypothesized
impacts
multiple
potential
drivers
can
eliminate
putative
from
contention.
encourages
a
reproducible
statement
confidence
about
role
after
methods
trend
deployed.
Confidence
requires
that
data
analyses
used
all
steps
follow
best
practices
reducing
uncertainty
each
step.
illustrate
with
examples.
could
strengthen
bridge
between
science
support
effective
actions
halt
loss
this
has
on
ecosystems.
article
part
theme
issue
‘Detecting
attributing
change:
needs,
gaps
solutions’.
Philosophical Transactions of the Royal Society B Biological Sciences,
Год журнала:
2023,
Номер
378(1881)
Опубликована: Май 29, 2023
Estimating
biodiversity
change
across
the
planet
in
context
of
widespread
human
modification
is
a
critical
challenge.
Here,
we
review
how
has
changed
recent
decades
scales
and
taxonomic
groups,
focusing
on
four
diversity
metrics:
species
richness,
temporal
turnover,
spatial
beta-diversity
abundance.
At
local
scales,
all
metrics
includes
many
examples
both
increases
declines
tends
to
be
centred
around
zero,
but
with
higher
prevalence
declining
trends
(increasing
similarity
composition
space
or
biotic
homogenization)
The
exception
this
pattern
changes
through
time
observed
most
assemblages.
Less
known
about
at
regional
although
several
studies
suggest
that
richness
are
more
prevalent
than
declines.
Change
global
scale
hardest
estimate
accurately,
extinction
rates
probably
outpacing
speciation
rates,
elevated.
Recognizing
variability
essential
accurately
portray
unfolding,
highlights
much
remains
unknown
magnitude
direction
multiple
different
scales.
Reducing
these
blind
spots
allow
appropriate
management
actions
deployed.
This
article
part
theme
issue
‘Detecting
attributing
causes
change:
needs,
gaps
solutions’.
Although
species
are
being
lost
at
alarming
rates,
previous
research
has
provided
conflicting
results
on
the
extent
and
even
direction
of
global
biodiversity
change
local
scale.
Here,
we
assessed
ability
to
detect
trends
using
richness
how
it
is
affected
by
number
monitoring
sites,
sampling
interval
(i.e.
time
between
original
survey
re‐survey
site),
measurement
error
(error
richness),
spatial
grain
(a
proxy
for
taxa
mobility)
biases
site‐selection
biases).
We
use
PREDICTS
model‐based
estimates
as
a
real‐world
distribution
randomly
selected
sites
calculate
trends.
found
that
while
network
with
hundreds
could
in
within
30‐year
period,
detecting
doubled
decade,
increased
10‐fold
three
years
yearly
were
undetectable.
Measurement
errors
had
non‐linear
effect
statistical
power,
1%
reducing
power
slight
margin
5%
drastically
reliably
any
trend.
The
was
also
related
grain,
making
harder
sampled
smaller
plot
sizes.
Spatial
not
only
reduced
negative
but
sometimes
yielded
positive
conclude
accurate
may
simply
be
unfeasible
current
approaches.
suggest
representative
implemented
national
level,
combined
models
accounting
biases,
can
help
improve
our
understanding
change.
Abstract
Understanding
the
interactions
among
anthropogenic
stressors
is
critical
for
effective
conservation
and
management
of
ecosystems.
Freshwater
scientists
have
invested
considerable
resources
in
conducting
factorial
experiments
to
disentangle
stressor
by
testing
their
individual
combined
effects.
However,
diversity
systems
studied
has
hindered
previous
syntheses
this
body
research.
To
overcome
challenge,
we
used
a
novel
machine
learning
framework
identify
relevant
studies
from
over
235,000
publications.
Our
synthesis
resulted
new
dataset
2396
multiple‐stressor
freshwater
systems.
By
summarizing
methods
these
studies,
quantifying
trends
popularity
investigated
stressors,
performing
co‐occurrence
analysis,
produce
most
comprehensive
overview
diverse
field
research
date.
We
provide
both
taxonomy
grouping
909
into
31
classes
an
open‐source
interactive
version
(
https://jamesaorr.shinyapps.io/freshwater‐multiple‐stressors/
).
Inspired
our
results,
help
clarify
whether
statistical
detected
align
with
interest,
outline
general
guidelines
design
any
system.
conclude
highlighting
directions
required
better
understand
ecosystems
facing
multiple
stressors.