Differing impacts of two major plant invaders on urban plant-dwelling spiders (Araneae) during flowering season

The dataset contains spider (Araneae) specimen numbers collected from flowering invasive American goldenrod (Solidago canadensis/gigantea) and invasive Himalayan balsam (Impatiens glandulifera) stands occuring naturally in urban areas of the city of Karlsruhe, Germany. Corresponding plots with native ruderalized vegetation in direct vicinity of each invaded plot were used as a comparison plot, resulting in a fully paired design for each plant invader study. An additional column represents potential non-araneae prey items collected together with the spiders from each stand. Spider specimens were determined to the family level as well as classified into web builders and hunters without a web.