How common is hybridization in birds?
Journal of Ornithology,
Journal Year:
2023,
Volume and Issue:
164(4), P. 913 - 920
Published: June 7, 2023
Abstract
Hybridization—the
interbreeding
of
different
species—plays
an
integral
role
in
the
evolution
numerous
bird
species.
However,
it
remains
unclear
how
widespread
this
phenomenon
is
within
and
across
groups.
Estimating
incidence
hybridization
lineages
can
inform
comparative
analyses
to
uncover
evolutionary
ecological
forces
that
promote
or
prevent
formation
hybrids.
Estimates
on
a
species
level
have
varied
from
about
10%
almost
20%
hybridizing
The
variation
among
latest
estimates
largely
depends
choice
global
checklists
with
differing
decisions
taxonomic
status
certain
(sub)species.
hybrid
records
these
generally
been
taken
at
face
value.
Detailed
assessments
revealed
some
cases
are
unreliable
incorrect.
Removing
faulty
discovery
novel
hybrids
will
result
fluctuating
percentage
best
be
captured
living
document
(e.g.,
regularly
updated
website
checklist).
individual
more
challenging.
A
first
attempt,
using
citizen
science
data
eBird
project,
reported
0.064%
individuals
United
States.
This
probably
underestimate
due
underreporting
by
birdwatchers
finetuned
considering
other
confounding
factors,
such
as
spatial
temporal
dynamics.
Future
efforts
estimating
avian
need
rely
combination
sources
techniques,
genetics,
museum
specimens,
science.
Language: Английский
Reproductive isolation in a three‐way contact zone
Molecular Ecology,
Journal Year:
2024,
Volume and Issue:
33(5)
Published: Jan. 18, 2024
Abstract
Contact
zones
between
divergent
forms
within
a
species
provide
insight
into
the
role
of
gene
flow
in
adaptation
and
speciation.
Previous
work
has
focused
on
contact
involving
only
two
forms,
but
nature,
many
more
than
populations
may
overlap
simultaneously
experience
flow.
Patterns
introgression
wild
are,
therefore,
likely
much
complicated
is
often
assumed.
We
begin
to
address
this
gap
current
knowledge
by
investigating
patterns
divergence
across
complex
natural
zone.
use
phenotypic
genomic
data
confirm
existence
three‐way
zone
among
freshwater
resident,
saltwater
resident
migratory
three‐spined
stickleback
(
Gasterosteus
aculeatus
)
island
North
Uist,
Scottish
Western
Isles.
find
evidence
for
hybridization,
mostly
forms.
Despite
analyses
reveal
pairwise
islands
all
that
are
maintained
Genomic
cline
also
selection
and/or
hybrid
incompatibilities
regions.
Divergent
regions
occur
multiple
chromosomes
involve
known
adaptive
loci
several
chromosomal
inversions.
identify
distinct
immune
expression
profiles
no
transgressive
hybrids.
Our
results
suggest
reproductive
isolation
zone,
despite
some
reduced
recombination
inversions
play
an
important
maintaining
isolation.
Language: Английский
Acoustic difference in advertisement calls among two sympatric Boulenophrys species: A confirmatory case to acoustic niche hypothesis and morphological constraint hypothesis
Tuo Shen,
No information about this author
Jing Liu,
No information about this author
Xiujun Tang
No information about this author
et al.
Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
14(4)
Published: April 1, 2024
In
anurans,
acoustic
communication
is
the
most
important
form
of
at
interspecific
and
intraspecific
levels.
Acoustic
diagnostic
features
may
be
a
potential
alternative
to
morphometric
molecular
diagnostics.
Here,
we
assessed
variations
in
advertisement
calls
between
two
sympatric
species,
Language: Английский
Learning mimetic cuckoo call innovations from neighbors in a Chinese songbird
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Oct. 15, 2024
Some
oscine
passerines
incorporate
heterospecific
sounds
into
their
repertoires,
including
vocalizations
of
other
bird
species,
fauna,
and
even
anthropogenic
sounds,
through
vocal
mimicry.
However,
few
studies
have
investigated
whether
mimics
learn
from
model
species
or
conspecific
tutors.
Here,
we
investigate
mimicry
acquisition
using
innovation
in
Cuculidae
calls
imitated
by
the
Chinese
blackbird
(Turdus
mandarinus).
If
arises
spreads
among
several
neighbors
is
not
produced
must
be
acquired
partially
conspecifics.
We
found
that:
(1)
blackbirds
were
reasonably
accurate,
but
with
some
differences
between
mimetic
real
acoustic
structures.
(2)
identified
four
unique
units
(mimicry
copy
errors),
these
only
occurred
at
certain
sites
shared
neighbors.
In
aggregate,
frequency
parameters
(the
first
principal
component)
higher
than
usual
(p
<
0.001).
Our
findings
provide
further
evidence
that
can
learnt
conspecifics
based
on
cases
units.
study
approach
a
reference
theoretical
basis
for
future
understanding
social
learning
development
Language: Английский
Geographical variation in the advertisement calls of Leptobrachella ventripunctata (Anura: Megophryidae) in Southwestern China
Chao-Bo Feng,
No information about this author
Tuo Shen,
No information about this author
Lang Mu
No information about this author
et al.
Asian Herpetological Research,
Journal Year:
2024,
Volume and Issue:
15(3), P. 140 - 151
Published: Sept. 1, 2024
Language: Английский
What Defines the Groupwise Compositional Turnover of Eurasian Phylloscopus Warblers? Insights From Zeta (ζ) Diversity and MS‐GDM
Journal of Biogeography,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 5, 2024
ABSTRACT
Aim
This
study
examines
how
environmental
variables
determine
the
co‐occurrence
of
Phylloscopus
warblers.
It
was
carried
out
using
an
integrated
zeta
(ζ)
diversity
estimation
method
and
multisite
generalised
dissimilarity
modelling
(MS‐GDM).
Location
species
spanning
Eurasia.
Study
Period
Observations
made
during
breeding
season
for
each
from
2014
to
2023.
Major
Taxa
Studied
We
specifically
focussed
on
complexes/superspecies
groups
within
genus
address
this
question.
The
defined
recent
phylogeny
are
P.
castaniceps
complex,
cantator
group,
borealis
burkii
affinis
proregulus
inornatus
davisoni
fuscatus
collybita
trochiloides
complex
tenellipes
group.
Methods
used
ζ
estimations
quantify
extent
compositional
turnover
across
multiple
sites.
further
MS‐GDM
gain
insights
into
various
impact
composition.
Results
composition
we
analysed
is
shaped
by
conditions.
normalised
difference
snow
index
considerably
impacts
with
such
as
showing
adjacency
snowy
areas.
Elevation
gravity
anomalies
play
essential
role
in
groups.
prevalence
positive
(variations
gravitational
strength)
hilly
areas
determines
differences
complex.
group
influenced
both
artificial
night
lights
anomalies.
,
soil
moisture,
elevation,
aridity
index,
emphasising
varied
ecological
niches
these
species.
Conclusions
improves
our
understanding
shift
leaf
warblers
over
space
reveals
mechanisms
underlying
shifts
their
regions
changes
climatic
patterns.
As
a
result,
important
resource
ecologists
conservationists.
Language: Английский