The Impact of Climate Change on the Urban Tree <i>Ailanthus altissima</i>: Insights from More than Four Decades of Pollen Data in Vienna (Austria).

ABSTRACT: Ailanthus altissima (tree of heaven) is among the most abundant and widespread neophytic plants in Austria. The pollen season of Ailanthus usually ranges from the beginning of June until the mid of July, showing one peak period around the mid of June in Vienna (Austria). Over a span of 48 years (1976-2023), pollen data of Ailanthus was gathered from aerobiological samples and assessed for a temporal trend. In addition, weather data from Vienna (temperature, precipitation, relative humidity and sun hours) was incorporated to find possible associations with Ailanthus pollen indices. The change in the pollen season for Ailanthus described in this study has already manifested and is ongoing. Temperature and sunshine hours have a direct impact on the flowering

SUBMITTER: Bastl M 

PROVIDER: S-EPMC12736547 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature