Interspecific effects of invasive wild pigs (Sus scrofa) on native nine-banded armadillos (Dasypus novemcinctus)
Journal of Mammalogy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 21, 2025
Abstract
Biological
invasions
pose
significant
risks
to
ecosystems
and
native
species.
Wild
pigs
(Sus
scrofa)
are
a
highly
detrimental
invasive
species
in
North
America,
directly
indirectly
affecting
Co-occurrence
of
wild
may
lead
interspecific
interactions
that
alter
ecological
communities.
Accordingly,
we
investigated
spatial
temporal
factors
influencing
detection
occupancy
Eurasian
Pig
Nine-banded
Armadillo
(Dasypus
novemcinctus)
before
examining
effects.
We
analyzed
camera-trap
data
collected
from
August
September
2021
using
hierarchical
modeling
framework
estimate
both
individually
(single-species
analyses)
concurrently
(conditional
co-occurrence
analyses).
observed
higher
rates
space
use
late
summer
areas
with
greater
riparian
cover,
respectively.
increased
linearly
throughout
our
sampling
season
response
precipitation.
Moreover,
armadillo
was
3.5
5.1×
at
sites
used
by
pigs,
regardless
whether
were
detected
during
survey
period.
Occupancy
best
explained
quadratic
trend
site
elevation
but
did
not
depend
on
the
presence
pigs.
Our
results
indicate
influence
(or
site-use
intensity),
occupancy,
therefore
revealing
nuanced
interactions.
Between
species,
high
overlap
diel
activity
significantly
different
peaks,
armadillos
being
strictly
nocturnal
crepuscular
more
cathemeral
activity,
suggesting
fine-scale
partitioning
have
occurred.
provide
insights
into
large-bodied
destructive
(Wild
Pig)
smaller,
ecologically
important
(Nine-banded
Armadillo).
Language: Английский
Unveiling the Secrets: How Landscape Patterns Shape Habitat Quality in Northeast China Tiger and Leopard National Park
Forests,
Journal Year:
2024,
Volume and Issue:
15(11), P. 1889 - 1889
Published: Oct. 26, 2024
The
Northeast
China
Tiger
and
Leopard
National
Park
(NCTLNP)
is
a
critical
habitat
for
the
endangered
Amur
tiger
leopard,
making
it
global
biodiversity
hotspot.
This
study
explores
how
changes
in
landscape
patterns
have
influenced
quality
park,
aiming
to
develop
strategies
enhancing
conservation
ensuring
park’s
long-term
sustainability.
From
2012
2017,
NCTLNP
experienced
significant
decline;
however,
launch
of
national
park
pilot
program
2017
resulted
improvements,
particularly
core
protected
areas,
where
increased
fragmentation
decreased.
These
findings
indicate
that
initiative
reduced
degradation
quality.
Key
metrics,
especially
Shannon
Diversity
Index
(SHDI),
were
found
significantly
affect
Additionally,
interaction
between
SHDI
contagion
(CONTAG)
played
pivotal
role
shaping
over
time.
Areas
with
high
low
CONTAG
showed
declines
quality,
pointing
need
focused
efforts.
offers
valuable
insights
policymakers
seeking
improve
through
targeted
management
practices.
Language: Английский