Anisogamy and the Darwin–Bateman paradigm
Evolution Letters,
Journal Year:
2024,
Volume and Issue:
8(6), P. 756 - 760
Published: Aug. 17, 2024
Abstract
The
Darwin–Bateman
paradigm
advanced
as
the
central
concept
to
explain
evolutionary
origin
of
sex
differences.
However,
debates
regarding
its
theoretical
underpinnings
persist,
particularly
with
respect
role
anisogamy
in
sexual
selection.
work
presented
by
Lehtonen
and
Parker
suggests
that
initial
split
gamete
production
rate
drives
differences
selection
but
any
further
variation
degree
is
not
expected
alter
strength
males
females.
Here,
I
discuss
historical
background
a
recently
emerged
controversy
present
empirical
data
corroborate
predictions.
Parker’s
contribution
refines
our
understanding
providing
broad
theory
for
large-scale
patterns
can
be
observed
nature.
Further
how
demographic
environmental
factors
influence
essential
predict
vast
diversity
across
tree
life,
beyond
primordial
impact
anisogamy.
Language: Английский
A matter of time: Bateman's principles and mating success as count and duration across social strata in contemporary Finland
Proceedings of the Royal Society B Biological Sciences,
Journal Year:
2023,
Volume and Issue:
290(2002)
Published: July 12, 2023
Bateman's
principles
heavily
influence
the
understanding
of
human
reproductive
behaviour.
Yet,
few
rigorous
studies
on
in
contemporary
industrialized
populations
exist.
Most
use
small
samples,
exclude
non-marital
unions,
and
disregard
recent
insights
within-population
heterogeneity
mating
strategies.
We
assess
success
using
population-wide
Finnish
register
data
marital
cohabitations
fertility.
examine
variability
across
social
strata
Bateman
analyse
mate
count,
cumulated
duration
with
a
mate,
association
success.
Results
support
first
second
principles.
Regarding
third
principle,
number
mates
is
more
positively
associated
for
men
than
women,
but
this
driven
by
ever
having
mate.
Having
one
average
lower
However,
lowest
income
quartile,
predicts
Longer
union
higher
success,
so
men.
note
that
sex
differences
relationship
between
differ
strata,
argue
may
be
an
important
component
alongside
count.
Language: Английский
Effects of social environments on male primate HPG and HPA axis developmental programming
Developmental Psychobiology,
Journal Year:
2024,
Volume and Issue:
66(5)
Published: May 2, 2024
Abstract
Developmental
plasticity
is
particularly
important
for
humans
and
other
primates
because
of
our
extended
period
growth
maturation,
during
which
phenotypes
adaptively
respond
to
environmental
cues.
The
hypothalamus–pituitary–gonadal
(HPG)
hypothalamus–pituitary–adrenal
(HPA)
axes
are
likely
be
principal
targets
developmental
“programming”
given
their
roles
in
coordinating
fitness‐relevant
aspects
the
phenotype,
including
sexual
development,
adult
reproductive
social
strategies,
internal
responses
external
environment.
In
animals,
humans,
environment
believed
an
source
cues
these
may
respond.
effects
early
environments
on
HPA
axis
have
been
widely
studied
some
extent,
primates,
but
there
still
major
gaps
knowledge
specifically
relating
males.
There
has
also
relatively
little
research
examining
role
that
play
programming
HPG
or
HPA/HPG
interface,
what
does
exist
disproportionately
focuses
females.
These
topics
understudied
males
part
due
difficulty
identifying
milestones
relative
females
general
quiescence
prior
maturation.
However,
clear
indicators
life
matter
both
sexes.
this
review,
we
examine
known
about
impact
male
development
nonhuman
epigenetic
mechanisms
programming.
We
conclude
by
highlighting
next
steps
area.
Language: Английский