Biotropica,
Год журнала:
2023,
Номер
55(5), С. 1069 - 1080
Опубликована: Авг. 23, 2023
Abstract
Alterations
of
the
landscape
following
agricultural
expansion
and
intensification
affect
animal
movement
patterns
in
resulting
mosaic
fragments
surrounding
matrix.
Here,
we
analyze
observed
34
individuals
from
nine
tropical
bird
species
a
rapidly
changing
Kenya.
We
deconstructed
into
their
three
components:
step
length,
turn
angles,
displacement
categorized
them
two
states:
area
restrictive
expansive
movement.
Using
hidden
Markov
models,
mixed
traits,
showed
that
birds
comprised
short
lengths
small
displacements,
characteristic
to
exploit
high‐quality
habitats.
On
contrary,
matrix
long
large
explore
or
pass‐through
poorer
The
responses
components
were
mediated
by
traits.
Habitat
specialists
stronger
boundary
response,
shorter
lengths,
smaller
displacements
than
habitat
generalists
both
Their
strong
preferences
for
fragments,
coupled
with
low
flight
capabilities
can
make
particularly
difficult.
Whereas,
at
scale,
generalist
omnivores
specialist
frugivores
had
larger
other
guilds,
as
they
use
resources
conduit
Therefore,
are
intensely
utilized
conservation
importance.
quality
permeability
promote
space
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Год журнала:
2024,
Номер
99(4), С. 1242 - 1260
Опубликована: Март 4, 2024
ABSTRACT
Animal
migration
has
fascinated
scientists
and
the
public
alike
for
centuries,
yet
migratory
animals
are
facing
diverse
threats
that
could
lead
to
their
demise.
The
Anthropocene
is
characterised
by
reality
humans
dominant
force
on
Earth,
having
manifold
negative
effects
biodiversity
ecosystem
function.
Considerable
research
focus
been
given
assessing
anthropogenic
impacts
numerical
abundance
of
species/populations,
whereas
relatively
less
attention
devoted
animal
migration.
However,
there
clear
linkages,
example,
where
human‐driven
behaviour
can
population/species
declines
or
even
extinction.
Here,
we
explore
(in
all
domains
–
aquatic,
terrestrial,
aerial)
using
International
Union
Conservation
Nature
(IUCN)
Threat
Taxonomy
classifications.
We
reveal
(e.g.
human
development,
disease,
invasive
species,
climate
change,
exploitation,
pollution)
impact
wildlife
in
varied
ways
spanning
taxa,
life
stages
type
from
direct
mortality
changes
behaviour,
health,
physiology).
Notably,
these
often
interact
complex
unpredictable
detriment
wildlife,
further
complicating
management.
Fortunately,
beginning
identify
strategies
conserving
managing
Anthropocene.
provide
a
set
that,
if
embraced,
have
potential
ensure
animals,
important
ecological
functions
sustained
migration,
persist.
Diversity,
Год журнала:
2023,
Номер
16(1), С. 23 - 23
Опубликована: Дек. 29, 2023
Habitat
fragmentation
and
degradation
in
natural
wetlands
has
resulted
declines
the
populations
of
shorebirds
Indian
subcontinent.
Shorebirds
rely
on
these
as
wintering
or
stop-over
sites
along
southern
extent
Central
Asian
Flyway.
are
known
to
utilize
agroecosystems
alternate
foraging
habitats.
The
suitability
areas
for
overwintering
migratory
not
been
well
studied
We
conducted
a
comprehensive
assessment
published
literature
compiled
field
observations
investigate
importance
inland
coastal
India.
assessed
shorebird
at
wetlands:
mudflats
mangroves
Kadalundi
Vallikkunnu
Community
Reserve
(KVCR)
Puthuvypu
sand
beach,
adjacent
west
coast
India,
including
Sanketham
Wetlands,
Manthalakkadavu,
Vazhakkad,
Elamaram,
Kodinhi,
Kooriyad.
On
east
coast,
we
wetland
habitats
Valinokkam,
Point
Calimere,
Pichavaram
evaluated
regions,
such
Jammu
Kashmir,
Punjab,
Rajasthan,
Gujarat,
Uttar
Pradesh,
Tamil
Nadu,
Kerala.
Fifty-three
species
diverse
from
various
parts
While
studies
use
by
limited
evidence
suggests
that
major
paddy
fields,
fostering
substantial
diversity.
In
Pichavaram,
Gulf
Mannar
22
agroecosystems,
notable
near-threatened
Eurasian
Curlew.
Seventeen
winter
arrivals,
highlighting
crucial
role
play
stopover
areas.
19
appear
Kooriyad,
Kodinhi.
Few
agricultural
fields
north
(Jammu
Kashmir).
Paddy
flooded
part
cropping
cycle,
support
prey
species,
macroinvertebrates,
amphibians,
small
fish,
could
attract
shorebirds.
Agricultural
practices
like
fallowing,
flooding,
ploughing
further
increase
abundance
accessibility
shorebirds,
drawing
them
greater
numbers.
It
is
recognize
unsustainable
unethical
methods
detrimentally
affect
accumulation
pesticide
residues
contamination
heavy
metals
also
threaten
As
result,
there
an
urgent
need
detailed
research
better
evaluate
supporting
resident
Systematic
explain
population
dynamics,
habitat
selection
trends,
utilization,
over-summering
behavior
birds
needed.
Implementing
sustainable
conservation
strategies
adopting
environmentally
friendly
essential
rich
biodiversity
region.
The
ability
to
meet
the
high
energetic
costs
of
long‐distance
migration
can
be
a
key
factor
in
survival
individual
birds.
use
stopovers,
where
individuals
pause
rest
and
feed,
is
common
strategy
many
migratory
bird
species.
In
this
study,
we
explore
timing
28
satellite‐tracked
(17
GPS
11
Argos)
adult
Ospreys
Pandion
haliaetus
from
northeastern
Germany.
For
15
GPS‐tracked
birds
that
migrated
Africa,
used
Generalized
Linear
Mixed‐effects
Models
analyse
effects
sex,
period,
departure
date
other
factors
on
number
stopovers
per
season,
total
lengths
stay
at
stopover
sites.
Female
migrants
arrived
breeding
sites
earlier
than
male
spring,
contradicting
theory.
Females
left
autumn
more
month
before
males.
was
not
affected
by
variables
tested,
but
led
longer
stays
period.
Autumn
were
(males:
mean
=
58.1
h
(95%
CI
31.1–85.0);
females:
164.0
(98.3–229.6))
spring
50.9
(0.0–114.6);
39.9
(11.9–67.9),
especially
with
early
dates.
spent
long
periods
mainly
latitudes
(in
Europe),
relatively
also
observed
North
Africa
(between
Mediterranean
Sahara),
so
length
did
vary
latitude.
Seasonal
fidelity
between
years
low,
except
for
five
females.
This
flexibility
complicates
establishment
protected
areas
migrating
along
flyway.
Ecological Management & Restoration,
Год журнала:
2025,
Номер
26(2)
Опубликована: Апрель 1, 2025
ABSTRACT
Stopover
sites
are
essential
for
migratory
birds,
offering
opportunities
to
rest
and
refuel
during
migration.
The
quality
of
these
habitats
directly
influences
migration
success,
particularly
small
passerine
birds
that
depend
on
readily
available
food
resources.
However,
high‐quality
often
scarce
at
stopover
sites.
In
the
Republic
Korea,
Biodiversity
Management
Contract
Scheme
(BMCS)
aims
enhance
habitat
by
providing
resources
through
unharvested
cultivated
land
(UCL).
This
study
evaluated
effectiveness
BMCS
Heuksando
Island,
a
major
site
birds.
We
compared
number
species
individuals
usage
time
in
UCLs
control
deserted
lands
(DLs).
results
showed
higher
richness
abundance
than
DLs,
with
buntings
(family
Emberizidae)
being
numerous
UCLs.
Additionally,
times
were
significantly
longer
While
provides
critical
shelter
granivorous
like
buntings,
potential
impacts
non‐target
warrant
further
investigation.
These
findings
importance
enhancing
feed
hide
in,
while
also
suggesting
need
balanced
approach
ensure
broader
biodiversity
conservation.
The
spatial
configuration
and
management
of
agricultural
other
land‐use
practices
can
affect
ecological
assemblages.
However,
the
differences
in
how
resident
migratory
birds
respond
to
are
remain
unclear,
hindering
our
understanding
bird
biodiversity
responses
land
use.
In
a
tropical
moist
broadleaf
forest
landscape
southeastern
Mexico,
we
assessed
alpha,
beta,
functional
diversity
as
indicators
ecosystem
functioning
across
landscape‐
habitat‐level
gradients,
incorporating
distance
protected
area,
understory
vegetation
cover,
three
uses:
1)
primary
forest,
2)
secondary
3)
cattle
pasture.
Compositionally,
assemblages
exhibited
similar
gradual
shifts
uses.
while
richness
steadily
declined
with
increasing
from
area
simplification
structure,
did
not
change.
Relative
assemblages,
found
that
abundances
were
greater
pasture,
insectivores
compensated
for
68%
abundance
losses
Among
these
increases
declines
utilize
foliage
gleaning
sallying
foraging
methods.
Our
findings
emphasize
importance
evaluating
managing
landscapes
around
areas,
highlight
distinct
use,
reveal
mechanisms
sustain
functions
modified
landscapes.