Sex affects the network of covariances between cognitive, behavioural, and physiological traits in guppies
iScience,
Год журнала:
2025,
Номер
28(5), С. 112487 - 112487
Опубликована: Апрель 19, 2025
Cognitive
variance
has
been
documented
across
many
species.
It
may
stem
from
constraints
imposed
by
the
covariation
among
different
traits.
We
hypothesized
that
sex
could
contribute
to
cognitive
affecting
traits'
covariation.
By
applying
a
network
analysis
in
guppy
(Poecilia
reticulata),
fish
with
marked
sexual
dimorphism,
we
found
males
and
females
differed
along
fast-slow
continuum,
exhibiting
higher
metabolism,
activity
levels,
faster
learning,
lower
flexibility.
Moreover,
more
covarying
traits
compared
(12
versus
7).
Pairwise
associations
involving
significantly
covariance
networks
of
two
sexes
were
stronger
males.
Various
traits,
including
learning
flexibility,
had
influences
between
females.
are
embedded
complex,
sex-dependent
web
covariation,
which
be
important
for
evolution
maintenance
variance.
Язык: Английский
Lessons in cognition: A review of maze designs and procedures used to measure spatial learning in fish
Journal of Fish Biology,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 12, 2024
The
use
of
different
mazes
to
assess
spatial
learning
has
become
more
common
in
fish
behavior
studies
recent
decades.
This
increase
cognition
research
opened
the
door
numerous
possibilities
for
exciting
and
diverse
questions,
such
as
identifying
ecological
drivers
understanding
role
individual
variation
plays
navigational
abilities.
There
are
many
types
mazes,
each
with
its
own
specific
considerations,
making
it
challenging
determine
exactly
which
test
is
most
relevant
appropriate
a
particular
experiment.
Many
T-maze
Y-maze,
have
been
successfully
adapted
from
rodent
studies,
particularly
respect
zebrafish,
widely
accepted
non-mammalian
model
biomedical
studies.
Standardization
across
increasing
these
easily
accessible
maze
designs,
validating
them
fish;
however,
variations
design
(e.g.,
length
arms
scale)
procedure
still
exist,
impact
on
results
largely
unknown.
efforts
standardize
outside
zebrafish
work
also
limited.
Other
developed
specifically
fish,
modifications
varying
widely,
difficult
draw
comparisons.
In
this
review,
we
highlighted
procedural
elements
that
should
be
considered
acquisition
reliable
behavioral
data,
goal
drawing
readers'
attention
aspects
experimentation
often
not
given
careful
consideration
they
deserve.
We
then
argue
additional
focused
reporting
needed
produce
methods
broader
range
subjects.
Язык: Английский
A reinvestigation of cognitive styles in sticklebacks: decision success varies with behavioral type
Behavioral Ecology,
Год журнала:
2024,
Номер
36(1)
Опубликована: Ноя. 25, 2024
The
"cognitive
styles"
hypothesis
suggests
that
individual
differences
in
behavior
are
associated
with
variation
cognitive
performance
via
underlying
speed-accuracy
trade-offs.
While
this
is
supported,
part,
by
a
growing
body
of
evidence,
some
studies
did
not
find
the
expected
relationships
between
behavioral
type
and
performance.
In
cases,
may
reflect
methodological
limitations
rather
than
absence
true
relationship.
physical
design
testing
arena
number
choices
offered
an
assay
can
hinder
our
ability
to
detect
inter-individual
Here,
we
re-investigated
styles
threespine
stickleback
(
Язык: Английский