Maximum likelihood estimators are ineffective for acoustic detection of rare bat species
PLoS ONE,
Journal Year:
2025,
Volume and Issue:
20(4), P. e0320646 - e0320646
Published: April 1, 2025
Acoustic
monitoring
is
an
important
tool
for
determining
presence
or
probable
absence
of
threatened
and
endangered
bats
in
the
United
States
(US).
Federal
guidance
requires
use
automated
identification
programs
that
classify
audio
files
calculate
a
Maximum
Likelihood
Estimator
(MLE)
each
bat
species
during
night
survey.
based
on
significant
non-significant
MLE,
which
can
have
profound
regulatory
effects,
positive
negative.
Despite
relying
this
metric
to
determine
rare
past
ten
years,
little
known
about
number
required
by
available
trigger
MLE
effect
ratio
calculation.
We
used
1,120
containing
echolocation
calls
from
nine
northeastern
US
simulate
survey
nights
variable
absolute
counts
ratios
species’
files.
developed
models
estimate
Kaleidoscope
Pro
(KPro)
SonoBat
establish
acoustic
species,
we
then
applied
our
best
model
long-term
dataset
collected
at
Fort
Drum
Military
Installation
New
York.
Each
program
similar
detect
some
such
as
Myotis
septentrionalis
M.
sodalis
(8
10
files),
but
differed
file
requirements
other
Lasiurus
cinereus
(KPro
=
4;
7)
Perimyotis
subflavus
10;
6).
Both
performed
poorly
with
any
low
(<25%).
Applying
revealed
total
recorded
within
had
great
whether
was
correctly
determined
be
present.
conclude
should
caution
surveys
could
produce
misleading
results
certain
conditions.
Language: Английский
The spatiotemporal distribution patterns and impact factors of bird species richness: A case study of urban built-up areas in Beijing, China
Zheran Zhai,
No information about this author
Siyao Liu,
No information about this author
Zimeng Li
No information about this author
et al.
Ecological Indicators,
Journal Year:
2024,
Volume and Issue:
169, P. 112847 - 112847
Published: Nov. 25, 2024
Language: Английский
Invisible Hand of Sampling for Management: Underlying Needs to Survey a Threatened Seabird Can Bias Aggregated Data
Journal of Biogeography,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 9, 2024
ABSTRACT
Aim
Surveying
for
a
species
of
concern
ahead
proposed
activities
that
alter
its
habitat
is
routine
practice
in
conservation
and
management.
Such
surveys
may
accumulate
large
datasets
could
further
elucidate
trends
abundance
distribution.
However,
the
as‐needed
surveying
impart
sample
site
selection
bias
on
data
if
used
another
purpose.
Management
threatened,
forest‐nesting
seabird
offered
an
example
this.
Here
we
assessed
how
resource
management
planning
survey
requirements
can
clearance
monitoring
collected
prior
to
timber
harvests,
those
are
other
purposes.
Location
Oregon
Washington,
USA.
Taxon
Marbled
Murrelet
(
Brachyramphus
marmoratus
).
Methods
To
assess
factors
influenced
marbled
murrelet
location
selection,
logistic
regression
models
examine
associations
sites
n
=
9178)
encompassing
stations
38,923)
therein,
across
murrelet's
inland
range
Washington
Oregon,
USA
between
1989
2021.
We
then
simulated
effect
this
selective
sampling
might
have
assessments
occupancy
trends.
Results
Most
characteristics
considered
did
influence
where
were
located,
with
distance
roads
often
being
strongest
predictor
location.
The
strength
each
covariate
changed
over
time,
such
characteristic
strongly
year
but
was
less
influential
year.
simulation
analysis
suggested
non‐random
profoundly
Conclusions
When
using
these
data–
or
any
data–beyond
their
original
purpose,
careful
consideration
should
be
given
scope
inference
provided
analytical
methods
used,
ensure
observed
product
biological
processes
not
biased
by
artefacts.
Language: Английский