Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 24, 2023
Abstract
Background
Migratory
birds
possess
remarkable
navigational
adaptations.
Vagrants,
few
individuals
who
migrate
to
incorrect
locations,
offer
a
unique
opportunity
study
how
navigation
is
accomplished.
Vagrancy
may
occur
due
external
factors
forcing
off
course,
such
as
strong
wings,
or
errors.
Natural
disruptions
in
the
Earth’s
magnetic
field
cause
errors
interfering
with
bird
magnetoreception.
Failures
of
other
tools
like
visual
landmark
recognition
and
social
route
learning
also
contribute
vagrancy,
but
these
are
difficult
quantify.
Methods
I
used
eBird,
community
science
dataset
comprising
millions
observations,
relative
likelihood
offshore
vagrancy
under
different
including
weather,
geomagnetic
disturbance,
solar
activity
using
mixed
effects
logistic
regression.
Then,
studied
variation
species
propensity
be
driven
by
morphology
migration
distance
multiple
linear
regression,
inheritances
alleles
phylogenetic
analysis.
Results
High
disturbance
low
visibility
increased
winds
did
not
appear
blow
course.
Most
stemmed
specific
differences,
best
explained
an
interaction
between
wing
pointedness
migration.
A
longer
was
strongly
correlated
rounded
relationship
absent
pointed
shape.
Brown-headed
Cowbirds
were
notably
more
prone
than
any
passerine.
Conclusions
External
primarily
senses,
rather
physically
Species
migrations
have
time
encounter
causing
events,
shape
allow
reorient
efficiently.
While
routes
genetic
passerines,
found
evidence
overlooked
role
inheritance.
contend
that
brood
parasite,
solitary
juvenile
experience
difficulty
joining
migratory
flocks,
thus
missing
out
on
opportunities.
These
results
clarify
adaptations
demonstrate
utility
studying
vagrants
understand
Artificial Intelligence Review,
Journal Year:
2024,
Volume and Issue:
57(4)
Published: March 23, 2024
Abstract
This
paper
innovatively
proposes
the
Black
Kite
Algorithm
(BKA),
a
meta-heuristic
optimization
algorithm
inspired
by
migratory
and
predatory
behavior
of
black
kite.
The
BKA
integrates
Cauchy
mutation
strategy
Leader
to
enhance
global
search
capability
convergence
speed
algorithm.
novel
combination
achieves
good
balance
between
exploring
solutions
utilizing
local
information.
Against
standard
test
function
sets
CEC-2022
CEC-2017,
as
well
other
complex
functions,
attained
best
performance
in
66.7,
72.4
77.8%
cases,
respectively.
effectiveness
is
validated
through
detailed
analysis
statistical
comparisons.
Moreover,
its
application
solving
five
practical
engineering
design
problems
demonstrates
potential
addressing
constrained
challenges
real
world
indicates
that
it
has
significant
competitive
strength
comparison
with
existing
techniques.
In
summary,
proven
value
advantages
variety
due
excellent
performance.
source
code
publicly
available
at
https://www.mathworks.com/matlabcentral/fileexchange/161401-black-winged-kite-algorithm-bka
.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Jan. 9, 2023
Rare
birds
known
as
"accidentals"
or
"vagrants"
have
long
captivated
birdwatchers
and
puzzled
biologists,
but
the
drivers
of
these
rare
occurrences
remain
elusive.
Errors
in
orientation
navigation
are
considered
one
potential
driver:
migratory
use
Earth's
magnetic
field-sensed
using
specialized
magnetoreceptor
structures-to
traverse
distances
over
often
unfamiliar
terrain.
Disruption
to
magnetoreceptors
field
itself
could
potentially
cause
errors
leading
vagrancy.
Using
data
from
2
million
captures
152
landbird
species
North
America
60
years,
we
demonstrate
a
strong
association
between
disruption
avian
vagrancy
during
fall
migration.
Furthermore,
find
that
increased
solar
activity-a
disruptor
magnetoreceptor-generally
counteracts
this
effect,
mitigating
misorientation
by
disabling
ability
for
orient.
Our
results
link
hypothesized
phenomenon
vagrancy,
further
demonstrating
importance
magnetoreception
among
mechanisms
birds.
Geomagnetic
disturbance
may
important
downstream
ecological
consequences,
vagrants
experience
mortality
rates
facilitate
range
expansions
populations
organisms
they
disperse.
Movement Ecology,
Journal Year:
2022,
Volume and Issue:
10(1)
Published: Dec. 14, 2022
Abstract
Why
and
how
new
migration
routes
emerge
remain
fundamental
questions
in
ecology,
particularly
the
context
of
current
global
changes.
In
its
early
stages,
when
few
individuals
are
involved,
evolution
can
be
easily
confused
with
vagrancy,
i.e.
occurrence
outside
their
regular
breeding,
non-breeding
or
migratory
distribution
ranges.
Yet,
vagrancy
theory
generate
if
vagrants
survive,
return
to
breeding
grounds
transfer
route
offspring,
thus
increasing
a
phenotype
population.
Here,
we
review
conceptual
framework
empirical
challenges
distinguishing
from
small
obligate
passerines
explain
this
inform
our
understanding
evolution.
For
purpose,
use
Yellow-browed
Warbler
(
Phylloscopus
inornatus
)
as
case
study.
This
Siberian
species
normally
winters
southern
Asia
recent
increase
Western
Europe
has
become
prominent
evolutionary
puzzle.
We
first
discuss
available
evidence
suggesting
that
is
still
mostly
vagrant
but
might
establishing
initiated
by
vagrants.
then
list
possible
approaches
check
some
really
undertake
movements
between
Siberia,
which
would
make
an
ideal
model
for
studying
links
emergence
routes.
The
breeding
grounds
of
the
Black-billed
Cuckoo
Coccyzus
erythropthalmus
encompass
a
wide
area
in
northern
North
America.
During
austral
winter
individuals
migrate
to
non-breeding
areas
South
There
had
been
only
three
known
locations
for
species
Brazil,
two
Amazon
Forest
and
one
Atlantic
Forest.
Here,
we
aim
present
new
records
Brazil
organize
available
literature
recovering
historical
data.
are
Southeast
regions
thus
represent
first
documented
outside
Brazilian
Amazon.
These
findings
indicate
an
expansion
considered
nomadic
species.
All
extra-Amazonian
were
made
strong
El
Niño
years,
climate
phenomenon
that
may
be
changing
bird
migration
patterns
America,
which
requires
further
investigation.
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 27, 2024
ABSTRACT
Although
decades
of
research
have
deepened
our
understanding
the
proximate
triggers
and
ultimate
drivers
migrations
for
a
range
taxa,
how
populations
establish
remains
mystery.
However,
recent
studies
begun
to
illuminate
interplay
between
genetically
inherited
learned
migrations,
opening
door
evaluation
migration
may
be
learned,
established,
maintained.
Nevertheless,
migratory
species
where
role
learning
is
evident,
we
lack
comprehensive
framework
learn
specific
routes
refine
movements
over
time
(i.e.,
their
origins).
This
review
draws
on
advances
in
behavioural
movement
ecology
offer
could
transition
from
resident
by
connecting
cognitive
fine‐scale
perceptual
cues
decisions
with
literature
cultural
transmission,
emergent
pattern
migration.
We
synthesize
multiple
mechanisms
processes
that
allow
population
respond
seasonal
resource
limitation,
then
encode
spatial
environmental
information
about
availability
memory
engage
social
navigate
landscapes
track
resources
better.
A
rise
global
reintroduction
efforts,
along
human‐induced
rapid
shifts
changing
make
evaluating
origins
this
threatened
behaviour
more
urgent
than
ever.
Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
14(11)
Published: Nov. 1, 2024
ABSTRACT
Over
the
course
of
last
two
centuries,
Northern
Rough‐winged
Swallows
(
Stelgidopteryx
serripennis
)
have
expanded
their
range
across
North
American
continent
but
remained
a
relatively
poorly
known
species.
In
this
paper,
I
discuss
aspects
nature
history
that
has
received
little
attention.
First,
document
an
instance
digging
own
burrow,
which
was
for
better
part
century
considered
behavior
either
lost
or
never
occurred
in
first
place.
Second,
review
natural
literature
to
qualitative
patterns
evident
expansion
over
centuries.
doing
so,
define
three
potentially
useful
concepts
can
he
applied
understand
species'
shifts:
Expansion
Chronology
,
is
spatiotemporal
map
shift;
concept
Vagrancy‐induced
Range
where
species
undergoes
repeated
movements
outside
typical
geographic
(defined
as
vagrancy
events),
leading
regular
occurrence
new
region
(e.g.,
overwintering
nonbreeding
occurrences);
and
Long‐distance
Dispersal,
specifically
breeding
following
events.