Biodiversity and Conservation,
Год журнала:
2021,
Номер
30(6), С. 1881 - 1897
Опубликована: Апрель 15, 2021
Abstract
Determining
the
density
trends
of
a
guild
species
can
help
illuminate
their
interactions,
and
impacts
that
humans
might
have
on
them.
We
estimated
from
2013
to
2017
clouded
leopard
Neofelis
nebulosa
,
cat
Prionailurus
bengalensis
marbled
Pardofelis
marmorata
in
Nam
Et—Phou
Louey
National
Park
(NEPL),
Laos,
using
camera
trap
data
spatial
capture-recapture
models.
Mean
(±
SD
)
estimates
(individuals/100
km
2
for
all
years
were
1.77
±
0.30
leopard,
1.50
cat,
3.80
0.70
cat.
There
was
declining
trend
across
study
three
species,
with
≥
90%
probability
decline
an
83%
no
evidence
mesopredator
release
occurred
as
result
tiger
(
Panthera
tigris
P.
pardus
extirpations.
believe
snaring,
factor
led
extirpation
NEPL,
is
now
contributing
smaller
felids,
extent
over-rides
any
potential
effects
densities
interactions.
recommend
NEPL
managers
implement
more
systematic
intensified
snare
removal
program,
concert
extensive
community
outreach
engagement
local
people
prevent
setting
snares.
These
actions
be
only
hope
saving
remaining
members
felid
NEPL.
Cambridge University Press eBooks,
Год журнала:
2020,
Номер
unknown
Опубликована: Ноя. 16, 2020
Bears
have
fascinated
people
since
ancient
times.
The
relationship
between
bears
and
humans
dates
back
thousands
of
years,
during
which
time
we
also
competed
with
for
shelter
food.
In
modern
times,
come
under
pressure
through
encroachment
on
their
habitats,
climate
change,
illegal
trade
in
body
parts,
including
the
Asian
bear
bile
market.
IUCN
lists
six
as
vulnerable
or
endangered,
even
least
concern
species,
such
brown
bear,
are
at
risk
extirpation
certain
countries.
poaching
international
these
most
threatened
populations
prohibited,
but
still
ongoing.
Covering
all
species
worldwide,
this
beautifully
illustrated
volume
brings
together
contributions
200
experts
ecology,
conservation
status,
management
Ursidae
family.
It
reveals
fascinating
long
history
interactions
threats
affecting
charismatic
species.
Frontiers in Conservation Science,
Год журнала:
2023,
Номер
4
Опубликована: Авг. 23, 2023
Tigers
are
a
conservation-reliant
species,
as
multiple
populations
face
the
risk
of
local
extinction
due
to
poaching
arising
from
continued
demand
for
their
body
parts.
Preventing
tiger
poses
challenge
rangers
responsible
protection,
particularly
in
Southeast
Asia,
where
protected
areas
typically
large,
mountainous
tropical
forests
guarded
by
small
teams
rangers.
Improving
counter-wildlife
crime
tactics
is
hindered
without
robust
evaluations,
and
inefficient
approaches
perpetuated.
We
evaluate
an
eight-year
project
aiming
recover
population
Peninsular
Malaysia.
Three
distinct
problems
Vietnamese,
Thai
Cambodian
groups,
differing
organisation,
target
species
tactics,
were
prioritised,
ranger
counter-poaching
tailored
reduce
these.
Applying
framework
developed
prevention
known
acronym
EMMIE,
here
we:
(1)
examine
evidence
our
intervention
was
Effective
reducing
threat;
(2)
resolve
Mechanisms
which
caused
reduction
harm
how
effectiveness
Moderated
three
types;
(3)
define
elements
necessary
Implementation
Economic
costs
involved.
found
incursion
frequency
fell
40%
baseline
years
treatment
across
all
types
while
depth
declined,
with
disrupted
incursions
on
average,
2.6
km
(Thai)
9.1
(Cambodian)
closer
forest
edge.
However,
wire
snares
increased
Vietnamese
poachers
number
per
eightfold.
No
observed
during
Covid-19
pandemic.
Tiger
density
remained
below
recovery
potential
(0.48/100km
2
2014
0.53/100
2021)
but
stabilised
key
females
survived
detected
breeding.
Leopard,
sun
bear,
muntjac
wild
boar
densities
stable.
Disarming
active
seizing
proportion
before
being
deployed
directly
reduced
mortality
medium-large
mammals
once
began.
Attributing
decline
attempts
supported
via
plausible
mechanisms:
cost
reoffending
repatriated
team
leaders;
detailed
knowledge
sharing
imitation
peers;
general
deterrence
at
community
level
awareness
elevated
arrest
low
likelihood
enjoying
rewards.
performance
enhancements
critical
stages
instrumental
increasing
certainty,
this
made
possible
institutionalising
learn-and-adapt
cycle
underpinned
dedicated
site
analyst.
This
study
highlights
investing
problem
analysis
going
beyond
simple
assumptions
can
greatly
enhance
efficiency
wildlife
protection
teams.
