bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 6, 2023
ABSTRACT
Alaska’s
boreal
birds
face
a
rapidly
changing
environment,
but
we
know
little
about
shifts
in
migratory
timing,
particularly
autumn.
We
used
quantile
regression
to
quantify
long-term
changes
autumn
capture
date
21
passerines
using
22+year
datasets
from
two
banding
stations
central
Alaska.
also
quantified
differences
between
sites
and
explored
whether
select
climate
indices
during
three
periods
of
the
annual
cycle
(breeding,
post-fledge,
migration)
could
predict
median
capture.
Long-term
migration
were
detected
86%
taxa,
76%
which
exhibited
advances
(∼2-3
days/decade),
long-distance
migrants
at
one
field
site.
However,
site-specific
unexpectedly
highlight
need
for
caution
before
extrapolating
timing
patterns
over
broad
spatial
extents.
Warmer
conditions
breeding
period
(using
AO
index)
associated
with
greatest
number
species
(9).
Collectively,
hypothesize
that
immense
size
spatially-variable
regions
impact
reproductive
often
resulting
(with
warming)
occasionally
delays
cooling).
Carry-over
effects
may
therefore
influence
passage
different
populations,
causing
patterns,
such
as
showing
location,
another.
Finally,
part
broader
effort
anticipate
reduce
declines
birds,
our
study
underscores
conservation
value
station
data
quantifying
avian
responses
investigating
drivers
varied
indices.
Frontiers in Ecology and Evolution,
Год журнала:
2024,
Номер
12
Опубликована: Март 14, 2024
The
significance
of
urban
landscapes
in
safeguarding
biodiversity
is
often
disregarded,
even
though
a
considerable
amount
conservation
focus
directed
toward
hotspots
where
land
conversion
happening
at
the
fastest
pace.
Maintaining
areas
not
only
benefits
environment,
but
along
with
social,
economic,
and
technological
factors
can
increase
stability
systems
to
disturbance,
concept
known
as
“urban
resilience”.
In
this
synthesis
paper,
we
explore
ecological
dimension
resilience
specifically
on
avian
because
birds
are
easy
observe,
relatively
abundant,
serve
an
indicator
overall
health
environments.
We
first
examine
discuss
role
environmental
stressors
associated
urbanization
ongoing
crisis.
then
provide
overview
characteristics
environment
that
may
promote
birds,
associations
between
social
economic
resilience.
Finally,
recommendations
future
research
regarding
strategies
improve
thus,
whole,
intersections
ecology,
ecosystem
justice,
planning.
Since
68%
world’s
population
projected
live
by
2050,
it
imperative
scientists,
planners,
civil
engineers,
architects,
others
consider
both
cities
natural
anthropogenic
stressors.
Journal of Applied Ecology,
Год журнала:
2024,
Номер
61(4), С. 784 - 796
Опубликована: Фев. 18, 2024
Abstract
Bird–building
collisions
account
for
365–988
million
bird
fatalities
every
year
in
the
United
States
alone.
Understanding
conditions
that
heighten
collision
risk
is
critical
to
developing
effective
strategies
reducing
this
source
of
anthropogenic
mortality.
Meteorological
factors
and
regional
migration
traffic
may
increase
rates
but
also
be
difficult
disentangle
from
other
effects.
We
used
5
years
counts
New
York
City
examine
influence
nocturnal
weather
on
with
buildings
during
spring
fall.
found
seasonally
unfavourable
winds
impede
visibility
are
important
bird–building
both
seasons.
Specifically,
northerly
westerly
low
southerly
cloud
ceiling
height
fall
associated
higher
risks.
Generally,
these
variables
most
strongly
increased
when
was
high,
exception
spring,
which
predicted
triple
compared
high
visibility,
independent
traffic.
Synthesis
applications
:
Although
legislation
turn
off
unnecessary
lighting
entirety
seasons
an
ultimate
goal,
a
proximate
goal
invaluable
will
predicting
nights
highest
using
information
determine
mitigation
efforts
could
effective.
Bird Conservation International,
Год журнала:
2024,
Номер
34
Опубликована: Янв. 1, 2024
Summary
Migratory
birds
are
experiencing
widespread
population
declines,
underscoring
the
urgency
of
effective
conservation
actions.
Long-term
monitoring
migratory
birds,
especially
during
migration,
is
crucial
for
such
actions
yet
remains
technically
challenging.
Bioacoustic
nocturnal
flight
calls
(NFCs)
constitutes
a
promising
technique
to
monitor
migration.
Such
has
increased
in
North
America
and
Europe,
but
its
application
on
East
Asian–Australasian
Flyway
(EAAF)
limited.
Here,
we
present
findings
from
an
NFC
project
conducted
at
recording
station
central
Beijing,
China
over
four
migration
seasons.
From
around
3,350
hours
effort,
manually
extracted
identified
84,135
NFCs,
involving
least
111
species
or
groups
that
associated
with
wide
range
habitat
types.
We
also
found
NFCs
provided
additional
information
species’
phenology
comparison
citizen
science
observation
data.
To
our
knowledge,
this
study
first
formal
investigation
bird
using
EAAF,
serving
as
proof-of-concept
case
wider,
long-term
efforts
traditionally
understudied
region.
Our
highlight
significance
incorporating
into
urban
planning
land
management
practices.
Every
night
during
spring
and
autumn,
the
mass
movement
of
migratory
birds
redistributes
bird
abundances
found
on
ground
day.
However,
connection
between
magnitude
nocturnal
migration
resulting
change
in
diurnal
abundance
remains
poorly
quantified.
If
departures
landings
at
same
location
are
balanced
throughout
night,
we
expect
high
turnover
but
little
(stream‐like
migration).
Alternatively,
migrants
may
move
simultaneously
spatial
pulses,
with
well‐separated
areas
departure
landing
that
cause
significant
changes
day
(wave‐like
Here,
apply
a
flow
model
to
data
from
weather
surveillance
radars
(WSR)
quantify
daily
fluxes
nocturnally
migrating
departing
ground,
characterizing
stopover
comprehensive
synoptic
scale
framework.
We
corroborate
our
results
independent
observations
eBird.
Furthermore,
estimate
turnover,
defined
as
proportion
replaced
overnight.
find
seasonal
chiefly
resembles
stream
where
populations
continuously
by
new
individuals.
Large
show
similar
magnitudes
take‐off
landing,
coupled
relatively
small
distances
flown
each
densities
ground.
further
WSR‐inferred
predict
eBird‐derived
rate
species
composition.
is
13%
average
can
reach
up
50%
peak
nights.
Our
highlight
WSR
networks
provide
real‐time
information
rapidly
changing
distributions
The
applied
be
valuable
tool
for
conservation
public
engagement
focused
birds'
daytime
stopovers.
Annual Review of Animal Biosciences,
Год журнала:
2024,
Номер
12(1), С. 161 - 185
Опубликована: Фев. 15, 2024
Hummingbirds
share
biologically
distinctive
traits:
sustained
hovering
flight,
the
smallest
bird
body
size,
and
high
metabolic
rates
fueled
partially
by
nectar
feeding
that
provides
pollination
to
plant
species.
Being
insectivorous
sometimes
serving
as
prey
larger
birds,
they
fulfill
additional
important
ecological
roles.
Hummingbird
species
evolved
radiated
into
nearly
every
habitat
in
Americas,
with
a
core
of
diversity
South
America.
Population
declines
some
their
are
increasing
risk
extinction.
Threats
population
health
genetic
just
beginning
be
identified,
including
diseases
hazards
caused
humans.
We
review
disciplines
health,
disease
ecology,
genomics
relate
hummingbirds.
appraise
knowledge
gaps,
causes
morbidity
mortality
disease,
threats
viability.
Finally,
we
highlight
areas
research
need
provide
ideas
for
future
studies
aimed
at
facilitating
hummingbird
conservation.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 1, 2024
Abstract
Citizen
science
is
increasingly
used
in
bird-window
collision
(BWC)
research
to
collect
data.
However,
few
studies
have
collected
BWC
data
from
social
media,
and
it
remains
unknown
whether
the
quality
comparable
that
of
reported
on
dedicated
platforms.
To
evaluate
potential
media
as
a
citizen
source
for
BWC,
we
Facebook
well
Taiwan
Roadkill
Observation
Network
(TaiRON),
main
platform
reporting
wildlife
mortalities
Taiwan.
We
compared
decade
(2012–2022)
two
platforms
by
examining
nationwide
geographical
coverage
species
compositions
observations.
Overall,
recorded
2,583
cases
involving
153
Facebook,
1,000
104
TaiRON.
More
than
half
individuals
were
not
found
dead
when
observed,
whereas
all
records
TaiRON
individuals.
The
top
80%
cumulative
generally
similar
between
Moreover,
sampling
completeness
both
exceeded
95%
(Facebook:
98.0%;
TaiRON:
96.0%).
our
knowledge,
this
study
among
first
through
posts,
results
show
quantity
can
be
well-developed
Taken
together,
may
only
serve
promising
tool
collecting
data,
but
also
provide
public
education,
which
benefit
bird
conservation.
Finally,
integrating
different
sources
helps
paint
more
complete
picture
patterns,
especially
understudied
areas
such
Asia.
We
quantitatively
assess
the
impacts
of
onshore
wind
turbines
on
local
bird
diversity
using
nationwide
data
in
China.
Results
show
that
one
standard-deviation
increase
(approximately
84
turbines)
reduces
abundance
by
5.27%
from
mean
value
5.38
and
leads
to
a
3.7%
reduction
species
richness
66
at
county
level.
The
negative
originate
resident
birds,
birds
grasslands,
waterfowl.
Biodiversity
protection
helps
safeguard
against
turbine
installations.
also
find
habitat
loss
after
installations
contributes
biodiversity
loss.
Our
results
suggest
fatalities
caused
are
much
smaller
than
those
fossil-fuel
power
stations
when
deaths
coal
mining,
plant
operation,
climate
change
accounted
for.