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Summary: important issue both theoretically and experimentally
[5], researchers ignore how female reproductive traits
intervene during fertilization. Once this is clarified, we
can then ascribe female traits as `resistant' or
`selective'. The second is to study the genetics of the
female preference and associated male traits [5]. A
genetic correlation is expected between both traits only
if traditional female choice is occurring. The third and
final approach is to track the rates of origin of female
and male traits on phylogenies once resistance or
selectivity has been determined. This will explain the
prevalence of either process.
Studies of fruit flies and water striders have
suggested that negative fitness outcomes for females
are a widespread phenomenon, but it is premature to
claim that sexual conflict is widespread based on data
from relatively few taxa. Related to this, no discussion
was made by Chapman et al. of recent studies showing
how females control both their reproductive decisions
and the fitness payoffs accrued by them (e.g. [610]).
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