Data from: Adult nutritional stress decreases oviposition choosiness and fecundity in female butterflies
Jaumann, Sarah, University of Minnesota
Snell-Rood, Emilie C., University of Minnesota
Published Jan 31, 2019 on Dryad.
Cite this dataset
Jaumann, Sarah; Snell-Rood, Emilie C. (2019). Data from: Adult nutritional stress decreases oviposition choosiness and fecundity in female butterflies [Dataset]. Dryad. https://doi.org/10.5061/dryad.5072425
Despite the benefits of careful decision-making, not all animals are choosy. One explanation is that choosiness can cost time and energy and thus depend on nutrition. However, it is not clear how allocation to choosiness versus other components of life history shifts in the face of nutritional stress. We tested two hypotheses about the effects of nutritional stress on choosiness and other life history traits: 1) poor nutrition leads to compensatory shifts in life history strategy towards greater investment per offspring in terms of choosy oviposition behavior and egg resources, and 2) poor nutrition negatively affects a range of life history traits. Cabbage white butterfly (Pieris rapae) females were reared under low or high nutrition conditions during the larval and adult stage in a fully factorial design. Choosiness was quantified as avoidance of conspecific models during oviposition. Adult life history traits included egg number, egg size, and thorax protein. Females that experienced nutritional stress as adults were less choosy and less fecund, in support of the second hypothesis. Yet females that were stressed as larvae invested more in thorax muscle, consistent with the first hypothesis. Overall, adult nutritional stress decreased investment in multiple reproductive traits, including a behavioral trait, but larval stress increased investment in flight, potentially to disperse away from nutritionally poor environments.
Spermatophore counts of low and high larval nutrition females
Data set showing spermatophore counts for a subset of 10 adult females from each of the two larval treatments- low and high nutrition. These data are a different subset of individuals from the other two files.
Thorax Protein Data (non-averaged between duplicates)
Data set with thorax protein data, showing larval and adult treatment, batch, and the duplicate mg protein/g thorax values for all individuals included in the main study, plus ten "reference" females from each larval treatment.
Life History Data
Data set with life history data for all individuals included in the main study. The data set includes adult and larval treatment and measured values for choosiness, fecundity, egg area in mm squared (measure of egg size), forewing length in mm (as a proxy for body size), and thorax protein in mg protein per g thorax. Thorax protein values in this file are the two replicate values from the ThoraxProtein file averaged together for each individual. All individuals in the study were female.