Global Ecology and Biogeography,
Journal Year:
2023,
Volume and Issue:
32(10), P. 1680 - 1689
Published: July 25, 2023
Abstract
Motivation
We
have
little
understanding
of
how
communities
respond
to
varying
magnitudes
and
rates
environmental
perturbations
across
temporal
scales.
BioDeepTime
harmonizes
assemblage
time
series
presence
abundance
data
help
facilitate
investigations
community
dynamics
timescales
the
response
natural
anthropogenic
stressors.
includes
terrestrial
aquatic
assemblages
spatial
grain
extent
from
present‐day
millions
years
ago.
Main
Types
Variables
Included
currently
contains
7,437,847
taxon
records
10,062
series,
each
with
a
minimum
10
steps.
Age
constraints,
sampling
method,
environment
taxonomic
scope
are
provided
for
series.
Spatial
Location
Grain
The
database
8752
unique
locations
freshwater,
marine
ecosystems.
represented
by
individual
samples
varies
quadrats
on
order
several
cm
2
grid
cells
~100
km
.
Time
Period
in
aggregate
spans
last
451
million
years,
modern
fossil
ranging
years.
median
is
18.7
54,872
Temporal
grain,
encompassed
samples,
ranges
days
tens
thousands
Major
Taxa
Level
Measurement
information
28,777
taxa
4,769,789
at
species
level
another
271,218
known
genus
level,
including
benthic
planktonic
foraminifera,
coccolithophores,
diatoms,
ostracods,
plants
(pollen),
radiolarians
other
invertebrates
vertebrates.
There
date
7012
3050
BioDeepTime.
Software
Format
SQLite,
Comma‐separated
values.
Science,
Journal Year:
2023,
Volume and Issue:
379(6630)
Published: Jan. 26, 2023
Amazonian
environments
are
being
degraded
by
modern
industrial
and
agricultural
activities
at
a
pace
far
above
anything
previously
known,
imperiling
its
vast
biodiversity
reserves
globally
important
ecosystem
services.
The
most
substantial
threats
come
from
regional
deforestation,
because
of
export
market
demands,
global
climate
change.
Amazon
is
currently
perched
to
transition
rapidly
largely
forested
nonforested
landscape.
These
changes
happening
much
too
for
species,
peoples,
ecosystems
respond
adaptively.
Policies
prevent
the
worst
outcomes
known
must
be
enacted
immediately.
We
now
need
political
will
leadership
act
on
this
information.
To
fail
biosphere,
we
our
peril.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2023,
Volume and Issue:
378(1881)
Published: May 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’.
Fire Ecology,
Journal Year:
2024,
Volume and Issue:
20(1)
Published: Feb. 8, 2024
Abstract
Background
The
global
human
footprint
has
fundamentally
altered
wildfire
regimes,
creating
serious
consequences
for
health,
biodiversity,
and
climate.
However,
it
remains
difficult
to
project
how
long-term
interactions
among
land
use,
management,
climate
change
will
affect
fire
behavior,
representing
a
key
knowledge
gap
sustainable
management.
We
used
expert
assessment
combine
opinions
about
past
future
regimes
from
99
researchers.
asked
quantitative
qualitative
assessments
of
the
frequency,
type,
implications
regime
beginning
Holocene
through
year
2300.
Results
Respondents
indicated
some
direct
influence
on
since
at
least
~
12,000
years
BP,
though
natural
variability
remained
dominant
driver
until
around
5,000
most
study
regions.
Responses
suggested
ten-fold
increase
in
frequency
during
last
250
compared
with
rest
Holocene,
corresponding
first
intensification
extensification
use
later
anthropogenic
change.
Looking
future,
were
predicted
intensify,
increases
severity,
size
all
biomes
except
grassland
ecosystems.
Fire
showed
different
sensitivities
across
biomes,
but
likelihood
increased
higher
warming
scenarios
biomes.
Biodiversity,
carbon
storage,
other
ecosystem
services
decrease
under
emission
scenarios.
present
recommendations
adaptation
mitigation
emerging
while
recognizing
that
management
options
are
constrained
Conclusion
humans
over
two
centuries.
perspective
gained
fires
should
be
considered
strategies,
novel
behavior
is
likely
given
unprecedented
disruption
plant
communities,
climate,
factors.
Future
degrade
services,
unless
aggressively
mitigated.
Expert
complements
empirical
data
modeling,
providing
broader
science
inform
decision
making
research
priorities.
Climate of the past,
Journal Year:
2021,
Volume and Issue:
17(6), P. 2481 - 2513
Published: Dec. 2, 2021
Abstract.
We
present
a
transient
simulation
of
global
vegetation
and
climate
patterns
the
mid-
late
Holocene
using
MPI-ESM
(Max
Planck
Institute
for
Meteorology
Earth
System
Model)
at
T63
resolution.
The
simulated
trend
is
discussed
in
context
change.
Our
model
captures
main
trends
found
reconstructions.
Most
prominent
are
southward
retreat
northern
treeline
that
combined
with
strong
decrease
forest
high
latitudes
during
vast
increase
Saharan
desert,
embedded
general
precipitation
Northern
Hemisphere
monsoon
margin
regions.
Southern
experiences
weaker
changes
total
cover
last
8000
years.
However,
monsoon-related
insolation-induced
cooling
winter
lead
to
shifts
composition,
mainly
between
woody
plant
functional
types
(PFTs).
large-scale
almost
linearly
follow
subtle,
approximately
linear,
orbital
forcing.
In
some
regions,
however,
non-linear,
more
rapid
simulation.
most
striking
region
Sahel–Sahara
domain
transitions
rather
desertic
state,
despite
gradual
insolation
Rapid
also
occur
latitudes,
South
Asia
margins
Hemisphere.
These
triggered
by
temperatures,
which
go
into,
or
move
out
of,
bioclimatic
tolerance
range
individual
PFTs.
dynamics
determined
net
primary
production
(NPP)
competition
on
timescales
centuries.
More
PFTs
within
few
decades
associated
mortality
thresholds
implicit
dynamic
model,
have
be
interpreted
caution.
outside
modifications
intensity
summer
affect
circulation
extra
tropics
via
teleconnections.
Based
our
simulations,
we
thus
identify
monsoons
as
key
player