Data Traine et al Too hot to handle.xlsx

Abstract:Increased temperature can induce plastic changes in many plant traits. However, little is known about how these changes affect plant interactions with insect pollinators and herbivores, and what the consequences for plant fitness and selection are.We grew fast-cycling <i>Brassica rapa</i> plants at two temperatures (ambient and increased temperature) and phenotyped them (floral traits, scent, color and glucosinolates). We then exposed plants to both pollinators (<i>Bombus terrestris</i>) and pollinating herbivores (<i>Pieris rapae</i>). We measured flower visitation, oviposition of <i>P. rapae</i>, herbivore development and seed output.· Plants in the hot environment produced more but smaller flowers, with lower UV reflectance and emitted a different volatile blend with overall lower volatile emission. Moreover, these plants received fewer first choice visits by bumblebees and butterflies, and fewer flower visits by butterflies. Seed production was lower in hot-environment plants, both because of a reduction in flower fertility due to temperature, and because of the reduced visitation of pollinators. Selection on plant traits changed in strength and direction between temperatures.· Our study highlights an important mechanism by which global warming can change plant-pollinator interactions and negatively impact plant fitness, as well as potentially alter plant evolution through changes in phenotypic selection.Data description:Excel file containing raw data of plant traits and reproduction and behavior of bumblebees and butterflies.The first excel sheet ("values per plant") contain the main datasheet with most plant trait, visitation by bumblebees and butterflies, and plant reproduction per plant. The following sheet contain additional data for plant traits for example measured on a subset of plants or per flower, additional data for insect behavior, additional plant reproduction data, and plant reproduction of the handpollination experiment + pollen limitation data.