bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Oct. 23, 2023
Abstract
In
a
large
and
ever-growing
number
of
animal
species,
it
is
now
appreciated
that
females
use
colors
as
visual
signal
in
range
social
interactions,
including
both
courtship
territorial
aggression.
Yet,
remains
unclear
whether
female
color
phenotypes
and/or
aggressive
behaviors
are
correlated
with
any
attributes
their
mate’s
phenotype.
For
example,
we
might
expect
species
which
males
contribute
more
to
parental
care
or
defense
have
colorful
females.
On
the
other
hand,
within
those
mated
higher
quality
be
than
lower
males.
To
begin
address
these
possibilities,
conducted
preliminary
study
two
sister
taxa
fairywren
(Maluridae)
distinct
life-history
strategies
plumage
dichromatism:
white-shouldered
fairywrens
(
Malurus
alboscapulatus
moretoni
)
tropical
Papua
New
Guinea,
ornamented
jointly
defend
territories
year-round,
red-backed
M.
melanocephalus
temperate
Australia,
sexually
dichromatic
unornamented
At
between
level,
predicted
would
same-sex
interactions
fairywrens,
year-round
defense,
whereas
break-down
during
non-breeding
fairywrens.
Further,
that,
simulated
encounters.
Between
were
on
average
predicted.
Within
indices
male
not
related
aggression
(although
there
was
non-significant
tendency
for
heavier
mates
longer
tails).
These
results
point
need
additional
research
exploring
relationships
life
history,
plumage,
wider
species.
Evolution,
Journal Year:
2014,
Volume and Issue:
68(9), P. 2644 - 2657
Published: June 2, 2014
Hybrid
zones
are
geographic
regions
where
differentiated
taxa
meet
and
potentially
exchange
genes.
Increasingly,
genomic
analyses
have
demonstrated
that
many
hybrid
semipermeable
boundaries
across
which
introgression
is
highly
variable.
In
some
cases,
certain
alleles
penetrate
the
zone
in
only
one
direction,
recombining
into
alternate
genome.
We
investigated
this
phenomenon
using
(genotyping-by-sequencing)
morphological
(plumage
reflectance
spectrophotometry)
of
between
two
subspecies
red-backed
fairy-wren
(Malurus
melanocephalus)
differ
conspicuously
a
sexual
signal,
male
back
plumage
color.
Geographic
cline
revealed
variable
pattern
differential
introgression,
with
narrow
coincident
clines
combined
several
significantly
wider
clines,
suggesting
tension
zone.
The
was
shifted
background
orange
subspecies,
consistent
selection
driving
asymmetrical
red
This
interpretation
supported
by
previous
experimental
work
demonstrating
an
extra-pair
mating
advantage
for
males,
but
role
genetic
dominance
remains
unclear.
study
highlights
potential
to
erode
taxonomic
promote
gene
flow,
particularly
at
intermediate
stage
divergence.
Evolution,
Journal Year:
2015,
Volume and Issue:
69(4), P. 1044 - 1052
Published: Feb. 5, 2015
Rapid
diversification
of
sexual
traits
is
frequently
attributed
to
selection,
though
explicit
tests
this
hypothesis
remain
limited.
Spermatozoa
exhibit
remarkable
variability
in
size
and
shape,
studies
report
a
correlation
between
sperm
morphology
(sperm
length
shape)
competition
risk
or
female
reproductive
tract
morphology.
However,
whether
postcopulatory
processes
(e.g.,
cryptic
choice)
influence
the
speed
evolutionary
form
unknown.
Using
passerine
birds,
we
quantified
rates
divergence
among
lineages
(i.e.,
species
pairs)
determined
these
varied
with
level
(estimated
as
relative
testes
mass).
We
found
that
mass
was
significantly
positively
associated
more
rapid
phenotypic
midpiece
flagellum
lengths,
well
total
length.
In
contrast,
there
no
association
head
size,
models
suggested
evolutionarily
constrained.
Our
results
are
first
show
an
strength
evolution,
suggest
selection
promotes
Ecology and Evolution,
Journal Year:
2013,
Volume and Issue:
3(9), P. 3030 - 3046
Published: Aug. 1, 2013
Sexual
dichromatism
in
birds
is
often
attributed
to
selection
for
elaboration
males.
However,
evolutionary
changes
either
sex
can
result
plumage
differences
between
them,
and
such
gains
or
losses
of
dimorphism.
We
reconstructed
the
evolution
colors
both
males
females
species
Maluridae,
a
family
comprising
fairy-wrens
(Malurus,
Clytomias,
Sipodotus),
emu-wrens
(Stipiturus),
grasswrens
(Amytornis).
Our
results
show
that,
across
species,
differ
their
patterns
color
evolution.
Male
has
diverged
at
relatively
steady
rates,
whereas
female
coloration
changed
dramatically
some
lineages
little
others.
Accordingly,
comparisons
against
models,
best
fit
Brownian
motion
(BM)
model,
an
Ornstein
Uhlenbeck
(OU)
multioptimum
with
different
adaptive
peaks
corresponding
distributions
Australia
New
Guinea.
Levels
were
significantly
associated
latitude,
greater
more
southerly
taxa.
suggest
that
current
diversity
are
product
sexes,
driven
part
by
environmental
distribution
family.
Emu - Austral Ornithology,
Journal Year:
2013,
Volume and Issue:
113(3), P. 270 - 281
Published: Aug. 15, 2013
AbstractMany
factors
may
influence
the
evolution
of
acoustic
signals,
including
sexual
selection,
morphological
constraints
and
environmental
variation.
These
can
play
simultaneous
interacting
roles
in
determining
signal
phenotypes.
Here,
we
assess
song
features
Maluridae,
a
passerine
family
with
significant
variation
among
taxa
levels
sperm
competition,
breeding
habitats
ranging
from
arid
grasslands
Australia
to
tropical
rainforests
New
Guinea.
We
used
phylogenetic
comparative
methods
robust
molecular
phylogeny
compare
characteristics
variety
other
measures,
testes
mass,
body-size
latitude.
Several
aspects
temporal
frequency
structure
were
associated
relative
suggesting
that
selection
some
this
family.
The
lowest
frequencies
strongly
predicted
by
body-size,
indicating
have
also
likely
influenced
Song
versatility,
reflecting
diversity
note
types
song,
was
positively
correlated
latitude,
complexity
increase
association
more
temperate
or
variable
environments.
Variation
across
appears
reflect
complex
interaction
between
natural
selection.Additional
keywords:
body-sizelatituderelative
size
Emu - Austral Ornithology,
Journal Year:
2013,
Volume and Issue:
113(3), P. 248 - 258
Published: Aug. 15, 2013
Phylogeny,
ecological
environment,
social
organisation,
and
mating
system
are
expected
to
affect
degree
of
female
ornamentation,
either
directly
or
indirectly,
but
our
understanding
how
ornaments
respond
these
forces
remains
incomplete.
This
article
evaluates
the
evolutionary
history
adaptive
significance
three
putative
ornaments—plumage
colouration,
bill
colouration
tail-length—in
fairy-wrens.
Despite
considerable
research
on
traits
in
male
fairy-wrens,
they
have
yet
be
studied
any
detail
females.
Phylogeographic
analyses
combination
with
life-history
data
suggest
that
plumage
under
active
selection,
independent
experienced
by
males.
Social
organisation
system,
as
mediated
may
shape
ornamentation
among
In
contrast,
tail-length
appears
driven
natural
selection
imposed
environmental
conditions,
leading
parallel
trait
evolution
sexes
within
each
species.
More
refined
comparative
population-level
investigations
consequences
proximate
mechanisms
future
priorities.
The
study
fairy-wrens
holds
great
promise
advance
collective
environment
interacts
sexual
competition
ornament
complex
organisms.
PLoS ONE,
Journal Year:
2018,
Volume and Issue:
13(3), P. e0192644 - e0192644
Published: March 6, 2018
Postcopulatory
sexual
selection
may
select
for
male
primary
characteristics
like
sperm
morphology
and
motility,
through
competition
or
cryptic
female
choice.
However,
how
such
influence
fertilization
success
remains
poorly
understood.
In
this
study,
we
investigate
possible
correlations
between
paternity
in
the
socially
monogamous
bluethroat
(Luscinia
svecica
svecica),
predicting
that
length
swimming
speed
is
positively
correlated
with
success.
total,
25%
(15/61)
of
broods
contained
extra-pair
offspring
10%
(33/315)
were
sired
by
males.
Paternity
did
not
correlate
significantly
any
aspects
motility.
Furthermore,
motility
morphological
characters
previously
have
been
shown
to
be
associated
Thus,
investigated
here
do
appear
strong
predictors
bluethroats.
Emu - Austral Ornithology,
Journal Year:
2019,
Volume and Issue:
119(3), P. 274 - 285
Published: April 25, 2019
The
White-shouldered
Fairywren
(Malurus
alboscapulatus)
is
a
tropical
passerine
bird
distributed
across
much
of
New
Guinea.
Fairywrens
are
among
few
species
fairywren
with
exclusively
distributions
and
differ
from
better
studied
congeners
in
Australia
because
subspecies
vary
by
female,
but
not
male,
coloration
morphology.
As
many
Guinea,
basic
demographic,
social,
morphological,
breeding
data
limited.
From
2011
to
2018
we
documented
the
biology
two
representing
extremes
female
ornamentation
spectrum.
Both
form
groups
having
an
even
operational
sex
ratio
appear
breed
year-round.
Extra-pair
paternity
occurs
ornamentation;
comparable
lacking
for
unornamented
females,
greater
scaled
cloacal
protuberance
volume
males
suggests
similar
or
higher
extra-pair
rates.
Females
ornamented
generally
larger
than
those
ornamentation,
exhibit
reduced
tail
lengths,
which
thought
serve
as
signal
social
dominance
other
fairywrens.
After
first
achieving
adult-like
plumage,
females
retain
plumage
year-round;
however,
only
delayed
maturation.
Our
discussion
highlights
similarities
differences
between
life
histories
Australian
Malurus
species;
focus
on
vs.
temperate
environments
variable
identify
priorities
future
research.
(2013).
Fairy-wrens
and
their
relatives
(Maluridae)
as
model
organisms
in
evolutionary
ecology:
the
scientific
legacy
of
Ian
Rowley
Eleanor
Russell.
Emu
-
Austral
Ornithology:
Vol.
113,
No.
3,
pp.
i-vii.
