Data from: Ejaculate investment differs by population, but not wing morph or perceived sperm competition risk, in Pacific field crickets

We raised crickets from two populations in Hawaii (O'ahu and
Kaua'i) and two wing morphs (flatwing males, which cannot sing; and
normal-wing males, which can sing), under conditions of perceived sperm
competition risk (presence of male advertisement song) or its absence
(quiet). In adulthood, males were euthanized, frozen, measured for body
size and mass; their accessory glands (which produce seminal fluid) were
dissected out and preserved for quantitative PCR (qPCR) analysis. We
examined the effects of population, wing morph, and presence or absence of
perceived sperm competition risk on male testes mass and production of
three seminal fluid proteins (SFPs) implicated in male paternity success.
The dataset includes a spreadsheet reporting data, including: male
population of origin, wing morph, experimental acoustic treatment (song
present or absent), body mass, pronotum width, and qPCR values for each of
the three SFPs. It also includes R code used to analyze the data and
generate the figures. Finally, it includes acoustic files and MATLAB code
that were used to generate the stimulus we used to experimentally induce
the perceived threat of sperm competition.