The
impact
of
inter-group
conflict
on
population
dynamics
has
long
been
debated,
especially
for
prehistoric
and
non-state
societies.
In
this
work,
we
consider
that
beyond
direct
battle
casualties,
conflicts
can
also
create
a
“landscape
fear”
in
which
many
non-combatants
near
theaters
abandon
their
homes
migrate
away.
This
process
causes
decline
the
abandoned
regions
increased
stress
local
resources
better
protected
areas
are
targeted
by
refugees.
By
applying
analytical
computational
modeling,
demonstrate
these
indirect
effects
sufficient
to
produce
substantial,
long-term
boom-and-bust
patterns
societies,
such
as
case
Mid-Holocene
Europe.
We
greater
availability
defensible
locations,
acting
protect
maintain
supply
combatants,
increases
permanence
landscape
fear
likelihood
endemic
warfare.
Proceedings of the National Academy of Sciences,
Journal Year:
2025,
Volume and Issue:
122(6)
Published: Feb. 3, 2025
We
examine
spatiotemporal
trends
in
the
pre-European-contact
Indigenous
population
of
North
America
using
radiocarbon
(
14
C)
dates
past
2000
y.
At
a
continental
scale,
~14,000
y
peaked
at
~1150
CE
and
then
declined
until
brief
recovery
shortly
before
1500
CE,
after
which
C
probability
declines
precipitously.
After
testing,
we
reject
hypothesis
that
1150
peak
decline
is
result
sampling
issues.
record
each
18
watersheds
where
find
peaks
ranging
from
~800
to
770
European
contact,
with
majority,
interior
continent,
declining
~1080
1300
CE.
Although
all
populations
large
portion
country
(the
Great
Lakes,
New
England,
Mid-Atlantic,
Central
Plains,
Northwest,
California)
did
not
contact.
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(12)
Published: March 11, 2024
Over
the
last
12,000
y,
human
populations
have
expanded
and
transformed
critical
earth
systems.
Yet,
a
key
unresolved
question
in
environmental
social
sciences
remains:
Why
did
grow
and,
sometimes,
decline
first
place?
Our
research
builds
on
20
y
of
archaeological
studying
deep
time
dynamics
to
propose
an
explanation
for
long-term
growth
stability
populations.
Innovations
productive
capacity
fuels
exponential-like
over
thousands
years;
however,
innovations
saturate
often,
may
leave
vulnerable
large
recessions
their
well-being
population
density.
Empirically,
we
find
trade-off
between
changes
land
use
that
increase
production
consumption
carbohydrates,
driving
repeated
waves
years,
susceptibility
due
lag
impact
humans
resources.
These
results
shed
light
drivers
decline.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2023,
Volume and Issue:
379(1893)
Published: Nov. 13, 2023
Abrupt
and
rapid
changes
in
human
societies
are
among
the
most
exciting
population
phenomena.
Human
populations
tend
to
show
expansions
from
low
high
density
along
with
increased
social
complexity
just
a
few
generations.
Such
demographic
transitions
appear
as
remarkable
feature
of
Homo
sapiens
dynamics,
likely
fuelled
by
ability
accumulate
cultural/technological
innovations
that
actively
modify
their
environment.
We
especially
interested
establishing
if
pre-historic
same
dynamic
signature
Industrial
Revolution
transition
(a
positive
relationship
between
growth
rates
size).
Our
results
patterns
across
different
were
similar
those
observed
during
developed
western
societies.
These
features,
which
have
been
operating
our
recent
history
hunter-gatherers
modern
industrial
societies,
imply
dynamics
cooperation
underlay
sudden
This
article
is
part
theme
issue
'Evolution
sustainability:
gathering
strands
for
an
Anthropocene
synthesis'.
Land,
Journal Year:
2025,
Volume and Issue:
14(3), P. 507 - 507
Published: Feb. 28, 2025
Territorial
spatial
conflicts
(TSCs)
refer
to
a
contradiction
of
utilization
resulting
from
the
inconsistency
needs
and
objectives
different
subjects
interest
for
resources
in
planning,
utilization,
management.
This
research
aimed
unveil
TSCs,
construction
land
expansion
(CLE),
their
relationship
Guizhou
Province
1980
2020,
both
temporally
spatially.
paper
established
indicators
assess
CLE,
including
velocity,
intensity,
pattern
analyze
characteristics
Province.
At
same
time,
territorial
conflict
indicator
(SCII)
was
constructed
study
TSCs
Province,
its
evolution
explored
through
cold
hotspot
analysis.
On
this
basis,
it
investigated
linkage
between
CLE
ordinary
least
squares
(OLS)
regression
model
geographically
weighted
(GWR)
model.
Furthermore,
also
an
economic
elasticity
coefficient
population
collaborative
GDP
along
with
volume.
The
revealed
that
while
velocity
intensity
have
escalated
over
displayed
considerable
geographical
variation
across
various
locations.
Simultaneously,
intensified,
demonstrating
slight
positive
correlation
expansion.
temporal
response
provided
reference
optimization
regional
space.
It
is
highly
valuable
significant
fostering
efficient
resources,
adjusting
social
transformations,
improving
scientific
rigor
planning.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2023,
Volume and Issue:
379(1893)
Published: Nov. 12, 2023
How
did
human
societies
evolve
to
become
a
major
force
of
global
change?
What
dynamics
can
lead
on
trajectory
sustainability?
The
astonishing
growth
in
population,
economic
activity
and
environmental
impact
has
brought
these
questions
the
fore.
This
theme
issue
pulls
together
variety
traditions
that
seek
address
using
different
theories
methods.
In
this
Introduction,
we
review
organize
strands
work
how
Anthropocene
evolved,
evolutionary
are
influencing
sustainability
efforts
today,
what
principles,
strategies
capacities
will
be
important
guide
us
towards
future.
We
present
set
synthetic
insights
highlight
frontiers
for
future
research
which
could
contribute
consolidated
synthesis.
article
is
part
'Evolution
sustainability:
gathering
an
synthesis'.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2023,
Volume and Issue:
379(1893)
Published: Nov. 13, 2023
We
derive
and
analyse
a
model
with
unusual
features
characterizing
human
activities
over
the
long-run.
First,
population
dynamics
draw
heavily
on
consumer-resource
modelling
in
ecology
that
humans
must
consume
biological
resources
to
produce
new
humans.
Second,
also
draws
from
economic
growth
theory
do
not
simply
resources;
they
consume.
Finally,
use
two
types
of
technology.
Consumption
technology
affects
rate
at
which
can
extract
resources.
Production
controls
how
effectively
convert
labour
into
The
both
are
subject
cumulative
cultural
evolutionary
processes
allow
technological
progress
regress.
resulting
exhibits
wide
range
dynamical
regimes.
That
said,
system
is
routinely
sensitive
initial
conditions,
wildly
different
outcomes
given
same
parameter
values.
Moreover,
basic
fragility
sense
often
lead
endogenous
extinction
species.
This
happen
gently,
or
it
follow
periods
explosive
activity
super-exponential
ends
collapse.
article
part
theme
issue
'Evolution
sustainability:
gathering
strands
for
an
Anthropocene
synthesis'.
Proceedings of the Royal Society B Biological Sciences,
Journal Year:
2024,
Volume and Issue:
291(2024)
Published: June 1, 2024
Over
the
history
of
humankind,
cultural
innovations
have
helped
improve
survival
and
adaptation
to
environmental
stress.
This
has
led
an
overall
increase
in
human
population
size,
which
turn
further
contributed
cumulative
learning.
During
Anthropocene,
or
arguably
even
earlier,
this
positive
sociodemographic
feedback
caused
a
strong
decline
important
resources
that,
coupled
with
projected
future
transgression
planetary
boundaries,
may
potentially
reverse
long-term
trend
growth.
Here,
we
present
simple
consumer/resource
model
that
captures
dynamics
stochastic
learning
transmission,
growth
resource
depletion
changing
environment.
The
idealized
mathematical
simulates
boom/bust
cycles
between
low-population
subsistence,
high-density
exploitation
subsequent
decline.
For
slow
recovery
time
scales
absence
climate
forcing,
predicts
global
collapse.
Including
simplified
periodic
find
innovation
can
couple
climatic
forcing
via
nonlinear
phase
synchronization.
We
discuss
relevance
finding
context
innovation,
anthropological
record
resilience
our
own
predatory
species.
Journal of The Royal Society Interface,
Journal Year:
2024,
Volume and Issue:
21(217)
Published: Aug. 1, 2024
The
impact
of
inter-group
conflict
on
population
dynamics
has
long
been
debated,
especially
for
prehistoric
and
non-state
societies.
In
this
work,
we
consider
that
beyond
direct
battle
casualties,
conflicts
can
also
create
a
‘landscape
fear’
in
which
many
non-combatants
near
theatres
abandon
their
homes
migrate
away.
This
process
causes
decline
the
abandoned
regions
increased
stress
local
resources
better-protected
areas
are
targeted
by
refugees.
By
applying
analytical
computational
modelling,
demonstrate
these
indirect
effects
sufficient
to
produce
substantial,
long-term
boom-and-bust
patterns
societies,
such
as
case
Mid-Holocene
Europe.
We
greater
availability
defensible
locations
act
protect
maintain
supply
combatants,
increasing
permanence
landscape
fear
likelihood
endemic
warfare.
Philosophical Transactions of the Royal Society B Biological Sciences,
Journal Year:
2023,
Volume and Issue:
379(1893)
Published: Nov. 13, 2023
The
overall
trajectory
for
the
human-environment
interaction
has
been
punctuated
by
demographic
boom-and-bust
cycles,
phases
of
growth/overshooting
as
well
expansion/contraction
in
productivity.
Although
this
pattern
explained
terms
an
interplay
between
population
growth,
social
upscaling,
ecosystem
engineering
and
climate
variability,
evoked
demographic-resource-complexity
mechanisms
have
not
empirically
tested.
By
integrating
proxy
data
sizes,
palaeoclimate
internal
societal
factors
into
empirical
modelling
approaches
from
dynamic
theory,
we
evaluated
how
endogenous
(population
warfare
upscaling)
exogenous
(climate)
variables
module
past
agrarian
societies.
We
focused
on
inland
Atacama
Desert,
where
populations
developed
agriculture
activities
arid
semi-arid
landscapes
during
last
2000
years.
Our
approach
indicates
that
these
experienced
a
over
millennia,
which
was
coupled
to
structure
feedback
hydroclimate,
engineering.
Thus,
loop
appears
closely
linked
with
cooperation,
competition,
limiting
resources
ability
problem-solving.
This
article
is
part
theme
issue
'Evolution
sustainability:
gathering
strands
Anthropocene
synthesis'.
