Intact interactions between plants and pollinators are essential for the reproduction of pollinator-dependent plant species. Global change factors, such as climate change, have the potential to disrupt these interactions and subsequently impair pollination service. This disruption can result in insufficient pollen receipt for plants and lower their reproduction success. High latitude sites experience particularly rapid climate change and plants at these locations are expected to be vulnerable to lower reproductive success due to pollen limitation. Pollen supplementation experiments, which assess the degree to which plant reproduction is pollen limited, have been conducted across the globe but are rare in high latitude regions. To fill this knowledge gap, we experimentally investigated the pollinator dependence and magnitude of pollen limitation in eight plant species north the Arctic Circle in Lapland, Finland. Our findings show that all plant species were pollinator dependent, but not pollen limited. We discuss several mechanisms that might buffer our focal plants from pollen limitation. Our results demonstrate that many plant species north of the Arctic Circle are currently receiving adequate pollinator service and provide a baseline for future comparisons of pollinator dependence and pollen limitation in the Arctic across species and time.

The spreadsheet contains the total number of flowers, fruits and viable seeds as well as the ratios of number of fruits per flower, number of seeds per fruit and number of seeds per flower for eight plant species belonging to one of three treatments (Bagged, Natural or Supplement). Missing values are denoted with NA.