Scientific Reports,
Journal Year:
2021,
Volume and Issue:
11(1)
Published: Sept. 14, 2021
Abstract
Removal
or
loss
of
top-predators
has
been
predicted
to
cause
cascading
negative
effects
for
ecosystems,
including
mesopredator
release.
However,
reliable
evidence
these
processes
in
terrestrial
systems
mixed
and
equivocal
due,
large
part,
the
systemic
continued
use
low-inference
study
designs
investigate
this
issue.
Even
previous
large-scale
manipulative
experiments
strong
inferential
value
have
limited
by
experimental
design
features
(i.e.
failure
prevent
migration
between
treatments)
that
constrain
possible
inferences
about
presence
absence
release
effects.
Here,
we
build
on
strong-inference
report
outcomes
additional
eradicate
Australian
dingoes
from
two
fenced
areas
where
dingo
was
restricted
theory
would
predict
an
increase
extant
European
red
foxes,
feral
cats
goannas.
We
demonstrate
removal
suppression
undetectable
levels
over
4–5
years
with
no
corresponding
increases
relative
abundances,
which
remained
low
stable
throughout
experiment
at
both
sites.
further
widespread
relationships
predators,
indicating
mechanism
underpinning
releases
not
present.
Our
results
are
consistent
all
long-term
mensurative
studies
collectively
(1)
do
suppress
goannas
population
level,
(2)
repeated,
temporary
open
does
create
effects,
(3)
sustained
closed
either.
add
similar
reports
North
America,
Asia,
Europe
southern
Africa
indicate
only
is
there
a
processes,
but
also
continually
growing
body
many
systems.
conclude
although
sympatric
predators
may
interact
negatively
each
other
smaller
spatiotemporal
scales,
interactions
always
scale-up
nor
they
enough
The Rangeland Journal,
Journal Year:
2020,
Volume and Issue:
42(6), P. 401 - 401
Published: Jan. 1, 2020
Wolves
were
exterminated
in
France
the
late
19th
and
early
20th
centuries.
Therefore,
livestock
breeders
herders
unprepared
when
wolves
arrived
from
Italy
1993,
year
after
committed
to
European
Union
(EU)
protect
wolves.
Today,
~580
wolves,
whose
numbers
are
growing
exponentially,
present
over
one-third
of
France.
During
last
10
years,
deaths
have
grown
linearly
3215
2009
12451
2019,
despite
implementing
extensive
damage
protection
measures
since
2004,
including
reinforced
human
presence,
guard
dogs,
secured
pasture
fencing
electrified
night
pens.
The
failure
prevent
is
clear.
enter
mosaic
landscapes
where
grazing
abundant
easy
prey.
intelligent
opportunistic.
As
a
strictly
protected
species,
it
seems
they
no
longer
associate
with
humans
danger.
Half
successful
attacks
now
occur
during
day,
notwithstanding
presence
dogs
humans.
Considering
high
costs
unsatisfactory
protection,
recently
modified
its
wolf
management
policy.
In
addition
non-lethal
means
that
suffered
several
by
permitted,
derogation
law,
defensively
shoot
Based
upon
evidence
other
countries,
we
suggest
re-establishing
reciprocal
relationship
Breeders
should
be
allowed
defend
their
herds
against
attacks,
not
predation
events.
Defence
shooting
would
also
upgrade
efficiency
means,
as
warning
signals
for
respect.
Rather
than
passive
coexistence,
need
embrace
dynamic
ever-evolving
process
coadaptation
between
relying
on
adaptive
capacities
both.
Journal of Zoology,
Journal Year:
2020,
Volume and Issue:
311(4), P. 246 - 259
Published: April 15, 2020
Abstract
Understanding
the
mechanisms
facilitating
coexistence
within
species
assemblages
is
a
key
consideration
for
conservation
as
intact
are
necessary
maintaining
full
ecosystem
function.
The
African
large
predator
guild
represents
one
of
few
remaining
functionally
on
Earth,
and
such,
unique
study
system
to
understand
competitive
interactions.
Yet,
relatively
little
known
between
some
its
intermediately
sized
members,
particularly
leopards
(
Panthera
pardus
).
Here,
we
use
overlapping
spatio‐temporal
activity
GPS
data
lions
leo
),
leopards,
wild
dogs
Lycaon
pictus
)
cheetahs
Acinonyx
jubatus
examine
spatial
interactions
temporal
partitioning
other
members
in
northern
Botswana.
We
found
that
at
population
level,
male
leopard
space
patterns
were
largely
unaffected
by
intraguild
competitors.
Leopards
showed
minimal
movement
coherence
with
competitors
(avoidance
or
attraction)
when
moving
through
areas
home
ranges
shared
species.
Moreover,
evidence
support
hypothesis
species’
primarily
driven
light
availability
rather
than
avoidance.
Our
results
suggest
avoidance
has
limited
impact
broad‐scale
niches,
aspects
leopards’
ecology
life
history
likely
ability
thrive
close
proximity
Considered
alongside
studies,
our
landscape‐level
approaches
may
be
suitable
aiding
conservation.
Oikos,
Journal Year:
2021,
Volume and Issue:
2022(1)
Published: Dec. 2, 2021
Humans
are
increasingly
acknowledged
as
apex
predators
that
shape
landscapes
of
fear
to
which
herbivores
adapt
their
behaviour.
Here,
we
investigate
how
humans
modify
deer
space‐use
and
effects
on
vegetation
at
two
spatial
scales;
zones
with
different
types
human
use
(largescale
risk
factor)
and,
nested
within
that,
trails
(fine‐scale
factor).
In
three
contrasting
activities:
1)
no
recreation,
hunting,
2)
hunting
3)
recreation
linked
(dropping
counts)
browsing
intensity,
relative
growth
survival
planted
saplings.
Plots
were
located
distances
(20
versus
100
m)
test
affect
sapling
performance.
Additionally,
plots
distributed
over
forest
heathland
habitat‐dependent.
Deer
was
highest
in
the
zone
without
or
resulting
higher
levels
lower
survival,
but
only
heathland.
contrast,
performance
did
not
differ
between
hunting.
dropping
counts
near
used
for
this
associated
impact
Our
results
show
recreational
modifies
is
woody
vegetation,
while
seasonal
activities
have
additive
year‐round
effects.
Yet,
observed
larger
scale
trails.
Furthermore,
open
heathland,
where
high
visibility
presumably
increases
avoidance
behaviour
because
it
detectability
decreases
escape
possibilities.
This
suggests
creates
behaviourally
mediated
cascading
influence
development,
yet
these
context‐dependent.
We
advocate
incorporating
human‐induced
conservation,
management
research.
Scientific Reports,
Journal Year:
2021,
Volume and Issue:
11(1)
Published: Sept. 14, 2021
Abstract
Removal
or
loss
of
top-predators
has
been
predicted
to
cause
cascading
negative
effects
for
ecosystems,
including
mesopredator
release.
However,
reliable
evidence
these
processes
in
terrestrial
systems
mixed
and
equivocal
due,
large
part,
the
systemic
continued
use
low-inference
study
designs
investigate
this
issue.
Even
previous
large-scale
manipulative
experiments
strong
inferential
value
have
limited
by
experimental
design
features
(i.e.
failure
prevent
migration
between
treatments)
that
constrain
possible
inferences
about
presence
absence
release
effects.
Here,
we
build
on
strong-inference
report
outcomes
additional
eradicate
Australian
dingoes
from
two
fenced
areas
where
dingo
was
restricted
theory
would
predict
an
increase
extant
European
red
foxes,
feral
cats
goannas.
We
demonstrate
removal
suppression
undetectable
levels
over
4–5
years
with
no
corresponding
increases
relative
abundances,
which
remained
low
stable
throughout
experiment
at
both
sites.
further
widespread
relationships
predators,
indicating
mechanism
underpinning
releases
not
present.
Our
results
are
consistent
all
long-term
mensurative
studies
collectively
(1)
do
suppress
goannas
population
level,
(2)
repeated,
temporary
open
does
create
effects,
(3)
sustained
closed
either.
add
similar
reports
North
America,
Asia,
Europe
southern
Africa
indicate
only
is
there
a
processes,
but
also
continually
growing
body
many
systems.
conclude
although
sympatric
predators
may
interact
negatively
each
other
smaller
spatiotemporal
scales,
interactions
always
scale-up
nor
they
enough