1.Shifts in the timing of flowering are a conspicuous biological signal of climate change. These shifts have been documented across the globe for diverse communities. Although many species are flowering earlier, others have exhibited no shifts or delays in flowering. 2.How species respond phenologically will shape interactions both with other community members and with the abiotic environment, altering fitness, abundance, and ultimately persistence. 3.To understand if variability in phenological response is influenced by evolutionary history,...