Neural and behavioral evolution in an eavesdropper with a rapidly evolving host
Current Biology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 1, 2025
The
diversification
of
animal
communication
systems
is
driven
by
the
interacting
effects
signalers,
signal
receivers,
and
environment.
Yet,
critical
role
unintended
like
eavesdropping
enemies,
has
been
underappreciated.
Furthermore,
contemporary
evolution
signals
rare,
making
it
difficult
to
directly
observe
this
process.
Ormiine
parasitoid
flies
rely
exclusively
on
acoustic
cues
locate
singing
male
orthopteran
hosts.
In
Hawaii,
selection
imposed
Ormia
ochracea
led
recent
rapid
their
local
host
crickets'
song.
We
use
complementary
lab
field
experiments
understand
how
receiver
psychology
(sensory
cognitive
mechanisms)
evolves
accommodate
a
new
that
host's
signal.
Receiver
our
understanding
host-parasite
coevolution
communication,
as
sensory
system
establishes
limits
behavioral
responses
exert
signals.
demonstrate
neural
auditory
tuning
behavior
O.
have
evolved
in
these
differences
likely
facilitate
detection
novel
songs.
Further,
recently
songs
are
highly
variable
among
males,
prefer
with
particular
spectral
characteristics,
enabling
us
predict
eavesdroppers
may
shape
song
evolution.
To
knowledge,
first
evidence
for
an
eavesdropper.
Our
work
links
systems,
signals,
behavior,
heeding
call
better
integration
mechanisms
receivers
into
communication.
Language: Английский
Quiet but not forgotten: Insights into adaptive evolution and behavior from 20 years of (mostly) silent Hawaiian crickets
Advances in the study of behavior,
Journal Year:
2024,
Volume and Issue:
unknown, P. 51 - 87
Published: Jan. 1, 2024
Language: Английский
Competing adaptations maintain nonadaptive variation in a wild cricket population
Proceedings of the National Academy of Sciences,
Journal Year:
2024,
Volume and Issue:
121(32)
Published: Aug. 1, 2024
How
emerging
adaptive
variants
interact
is
an
important
factor
in
the
evolution
of
wild
populations,
but
opportunity
to
empirically
study
this
interaction
rare.
We
recently
documented
emergence
phenotype
“curly-wing”
Hawaiian
populations
field
crickets
(
Teleogryllus
oceanicus
).
Curly-wing
inhibits
males’
ability
sing,
protecting
them
from
eavesdropping
parasitoid
flies
Ormia
ochracea
Surprisingly,
curly-wing
co-occurs
with
similarly
protective
silent
“flatwing”
phenotypes
multiple
which
neither
has
spread
fixation.
These
two
are
frequently
coexpressed,
since
either
sufficiently
reduces
song
amplitude
evade
fly,
their
coexpression
confers
no
additional
fitness
benefit.
Numerous
“off-target”
phenotypic
changes
known
accompany
flatwing,
and
we
find
that
curly-wing,
too,
negatively
impacts
male
courtship
affects
mass
survival
females
under
lab
conditions.
show
through
crosses
genomic
mRNA
sequencing
expression
associated
variation
on
a
single
autosome.
In
parallel
analyses
our
results
reinforce
previous
findings
X-linked
single-locus
inheritance.
By
combining
insights
into
genetic
architecture
these
alternative
simulations
observations,
co-occurrence
adaptations
impedes
fixing,
despite
extreme
benefits,
due
epistasis.
This
similar
forms
same
might
be
more
common
than
generally
considered
could
force
inhibiting
sexually
reproducing
organisms.
Language: Английский
Varied female and male courtship behavior facilitated the evolution of a novel sexual signal
Behavioral Ecology,
Journal Year:
2022,
Volume and Issue:
33(4), P. 859 - 867
Published: May 2, 2022
Abstract
Sexual
selection
can
contribute
to
speciation
when
signals
and
preferences
expressed
during
mate
choice
are
coupled
within
groups,
but
come
differ
across
groups
(generating
assortative
mating).
When
new
sexual
evolve,
it
is
important
investigate
their
roles
in
both
location
courtship
contexts,
as
signaling
functions
critical
choice.
In
previous
work,
researchers
identified
two
male
morphs
(silent
purring)
Hawaiian
populations
of
the
Pacific
field
cricket,
Teleogryllus
oceanicus.
These
likely
evolved
because
they
protect
males
from
an
acoustically
orienting
parasitoid,
yet
still
obtain
some
reproductive
success.
But,
remains
unknown
how
purring
morph
close
encounters.
We
compared
relative
success
very
recently
that
ancestral
silent
Purring
produce
a
novel
song
were
not
successful
type,
mounted
by
females
often
quickly
obligately
arose
spread
~20
years
ago.
initiate
more
than
other
morphs,
where
common
exhibit
higher
overall
mounting
rates.
Thus,
differences
behavior
may
have
facilitated
origin
this
signal.
found
no
mating
between
given
own
population,
so
we
hypothesize
multiple
types
will
be
maintained
species
each
achieves
fitness
different
ways.
Language: Английский
Predation drives complex eco-evolutionary dynamics in sexually selected traits
PLoS Biology,
Journal Year:
2023,
Volume and Issue:
21(4), P. e3002059 - e3002059
Published: April 3, 2023
Predation
plays
a
role
in
preventing
the
evolution
of
ever
more
complicated
sexual
displays,
because
such
displays
often
increase
an
individual’s
predation
risk.
Sexual
selection
theory,
however,
omits
key
feature
modeling
costs
to
sexually
selected
traits:
is
density
dependent.
As
result
this
dependence,
predator–prey
dynamics
should
feed
back
into
which,
turn,
feeds
dynamics.
Here,
we
develop
both
population
and
quantitative
genetic
models
that
explicitly
link
with
Our
primary
can
drive
eco-evolutionary
cycles
traits.
We
also
show
mechanistically
cost
as
leads
novel
outcomes
maintenance
polymorphism
alters
ecological
by
muting
prey
cycles.
These
results
suggest
potential
mechanism
maintain
variation
underscore
short-term
studies
display
may
not
accurately
predict
long-run
Further,
they
demonstrate
common
verbal
model
(that
limits
displays)
widespread
empirical
support
unappreciated,
complex
due
density-dependent
nature
predation.
Language: Английский
A novel cricket morph has diverged in song and wing morphology across island populations
Journal of Evolutionary Biology,
Journal Year:
2023,
Volume and Issue:
36(11), P. 1609 - 1617
Published: Oct. 27, 2023
Divergence
of
sexual
signals
between
populations
can
lead
to
speciation,
yet
opportunities
study
the
immediate
aftermath
novel
signal
evolution
are
rare.
The
recent
emergence
and
spread
a
new
mating
song,
purring,
in
Hawaiian
Pacific
field
cricket
(Teleogryllus
oceanicus)
allows
us
investigate
population
divergence
soon
after
origin
signal.
Male
crickets
produce
songs
with
specialized
wing
structures
attract
mates
from
afar
(calling)
entice
them
mate
when
found
(courtship).
However,
Hawaii,
these
also
an
eavesdropping
parasitoid
fly
(Ormia
ochracea)
that
kills
singing
males.
purring
produced
heavily
modified
morphology,
attracts
female
but
not
fly,
acting
as
solution
this
conflict
natural
selection.
We've
recently
observed
increasing
numbers
males
across
Hawaii.
In
integrative
study,
we
investigated
distribution
proportion
relative
other
morphs
six
on
four
islands
compared
suite
phenotypic
traits
(wing
calling
song
courtship
song)
make
up
We
show
is
varying
proportions
five,
locally
dominant
four,
populations.
songs,
morphology
differ
geographically.
Our
findings
demonstrate
rapid
pace
island
provide
insights
into
over
time.
Language: Английский
Resource competition affects the developmental outcome of the acoustic parasitoid flyOrmia ochracea
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 28, 2024
Abstract
Ormia
ochracea
is
an
acoustic
parasitoid
fly
where
the
adults
are
free-living,
but
their
larval
young
depend
on
nutritional
resources
within
host
crickets
for
growth
and
development.
In
nature,
gravid
female
flies
rely
ability
to
recognize
localize
cricket
calling
songs
find
suitable
species
parasitize.
depth
investigations
of
behavior
mechanistic
bases
auditory
perception
require
a
reliable
approach
propagate
stable
colonies
in
laboratory.
Previous
work
has
demonstrated
that
can
be
propagated
using
number
natural
species,
as
well
do
not
parasitize
nature.
However,
we
lack
complete
understanding
developmental
outcomes
when
non-host
utilized
colonies.
this
study,
document
feasibility
commercially
supplied
Acheta
domesticus
species.
We
specifically
test
hypothesis
size
resource
competition
affect
O.
.
performed
manual
parasitizations
varied
size,
was
by
manipulating
larvae
used
cricket.
A
series
morphometric
analyses
were
conducted
crickets,
measured
terms
pupation
success
eclosion
success,
pupal
width,
eclosed
adult
size.
absence
competition,
found
did
or
success.
presence
between
two
developing
cricket,
successes
impacted
negatively,
pupae
more
likely
smaller.
These
results
confirm
among
parasitoids
negatively
outcomes,
effectively
Highlights
The
successfully
develop
house
Pupal
varies
positively
with
Resource
affects
resulted
smaller
less
eclose.
Graphical
Language: Английский
Resonant song recognition and the evolution of acoustic communication in crickets
iScience,
Journal Year:
2024,
Volume and Issue:
28(2), P. 111695 - 111695
Published: Dec. 27, 2024
Cricket
song
recognition
is
thought
to
evolve
through
modifications
of
a
shared
neural
network.
However,
the
species
Anurogryllus
muticus
has
an
unusual
pattern
that
challenges
this
view:
females
respond
both
normal
male
pulse
periods
and
twice
as
long.
Of
three
minimal
models
tested,
only
single-neuron
model
with
oscillating
membrane
could
explain
behavior.
A
cricket's
network
reproduced
behavior
after
adding
mechanism
that,
while
present
in
full
network,
not
crucial
for
other
species.
This
shows
how
can
produce
diverse
behaviors
highlights
different
computations
contribute
evolution.
Our
results
also
demonstrate
nonlinear
lead
rapid
behavioral
changes
during
evolution
because
small
parameters
large
Language: Английский