Plant reproduction plays an important role in population dynamics, and many plants rely on pollinator services for at least some of their reproduction. Recent pollinator population declines, coupled with other environmental changes including land use change and biological invasions, may have drastically changed pollinator services. This session follows the 2016 release of the IPBES synthetic report on the state of our knowledge on the causes and consequences of global pollinator declines (Potts et al. 2016). The report highlighted that we still do not have a synthetic understanding of how pollinator declines will affect plant pollination success and identified research that this area as a key knowledge gap. Pollen supplementation experiments, which compare the reproductive success of open and pollen supplemented flowers, quantify how limited plant reproduction might be by pollen receipt. Recent global meta-analyses and longitudinal studies are generating new insights into important long-standing questions, such as: How resilient is plant reproduction to environmental changes, such as land use change? How do extreme events such as drought influence pollen limitation? Do pollinator services limit reproduction for invasive plants? It is still largely unknown what plant characteristics lead to resilience or vulnerability to changing climates, and the studies in this session will address this question using phylogenetic meta-analysis and other cutting edge analytical techniques. Such studies are increasingly important as changes in pollinator populations, urbanization, and extreme weather events such as drought potentially influence plant reproduction.