Earlier spring warming temperatures induced by climate change are projected to advance snowmelt in the alpine tundra, resulting in changes to plant flowering regimes which have the potential to interrupt reproductive processes. In this study, I investigate the effect of snowmelt timing on the flowering synchrony and reproductive success of three co-flowering species across four sites with various mean snowmelt timing in an alpine meadow ecosystem. I find distinct responses to earlier snowmelt within my study species. Changes to snowmelt timing may have detrimental impacts on reproduction in some species, but positive effects in others. My results suggest that changes to flowering synchrony among and within species in response to snowmelt can have species and interaction specific consequences for reproduction in future climate scenarios.
