Human Footprint and Forest Disturbance Reduce Space Use of Brown Bears (Ursus arctos) Across Europe
Global Change Biology,
Journal Year:
2025,
Volume and Issue:
31(1)
Published: Jan. 1, 2025
ABSTRACT
Three‐quarters
of
the
planet's
land
surface
has
been
altered
by
humans,
with
consequences
for
animal
ecology,
movements
and
related
ecosystem
functioning.
Species
often
occupy
wide
geographical
ranges
contrasting
human
disturbance
environmental
conditions,
yet,
limited
data
availability
across
species'
constrained
our
understanding
how
pressure
resource
jointly
shape
intraspecific
variation
space
use.
Leveraging
a
unique
dataset
758
annual
GPS
movement
trajectories
from
375
brown
bears
(
Ursus
arctos
)
range
in
Europe,
we
investigated
effects
(i.e.,
footprint
index),
predictability,
forest
cover
disturbance,
area‐based
conservation
measures
on
bear
We
quantified
use
at
different
spatiotemporal
scales
during
growing
season
(May–September):
home
size;
representing
general
requirements,
10‐day
long‐distance
displacement
distances,
routine
1‐day
distances.
found
large
all
scales,
which
was
profoundly
affected
index,
vegetation
productivity,
recent
disturbances
creating
opportunity
pulses.
Bears
occupied
smaller
moved
less
more
anthropized
landscapes
areas
higher
predictability.
Forest
reduced
while
contiguous
promoted
longer
daily
movements.
The
amount
strictly
protected
roadless
within
too
small
to
affect
Anthropized
may
hinder
expansion
isolated
populations,
such
as
Apennine
Pyrenean,
obstruct
population
connectivity,
example
between
Dinaric
Pindos
Alpine
or
Carpathian
population.
Our
findings
call
actions
maintain
high
footprint,
maintaining
integrity,
support
viable
populations
their
functions.
Language: Английский
Bearing the Humans
Global Change Biology,
Journal Year:
2025,
Volume and Issue:
31(2)
Published: Feb. 1, 2025
Brown
bears
across
Europe
are
responding
to
the
human
footprint,
with
space
use
and
movement
behaviour
strongly
influenced
by
limited
habitat
connectivity.
While
natural
food
availability
suitability
remain
important
for
bears,
growing
pressure
is
increasingly
constraining
their
ecological
role.
The
picture
was
drawn
Andrea
Gazzola.
Language: Английский