Effect of green infrastructure on restoration of pollination networks and plant performance in semi-natural dry grasslands across Europe

Agricultural intensification, afforestation and land abandonment are major drivers of biodiversity loss in semi-natural grasslands across Europe. Reversing these losses requires the reinstatement of plant-animal interactions such as pollination. Here we assessed the differences in species composition and patterns of plant-pollinator interactions in ancient and restored grasslands and how these patterns are influenced by landscape connectivity, across three European regions (Belgium, Germany and Sweden). We evaluated the differences in pollinator community assemblage, abundance, and interaction network structure between 24 ancient and restored grasslands. We then assessed the effect of surrounding landscape functional connectivity (i.e. green infrastructure, GI) on these variables and tested possible consequences on the reproduction of two model plants, Lotus corniculatus and Salvia pratensis. Neither pollinator richness nor species composition differed between ancient and restored grass..., We sampled plant-pollinator interactions five times at each of the 24 focal grasslands throughout the main flowering periods of 2018. We shifted geographically with the flowering period (May 3rd-June 6th-in Germany, June 14th-July 8th in Belgium and July 10th-August 9th in Sweden), from 9 a.m. to 6 p.m. on sunny days with low wind, and above 15ºC. We gathered flower visitation data along three parallel linear transects (80m long and 3m wide) over 45 min (15 min per transect).  We recorded the identity and number of insect contacts to flowers, considering only those (i.e. potential pollination events) when an insect clearly touched the flower reproductive organs., , # Effect of green infrastructure on restoration of pollination networks and plant performance in semi-natural dry grasslands across Europe

## **Description of the Data and File Structure**

Within this dataset, you'll find a collection of 24 bipartite matrices, each corresponding to a specific study plot. These matrices provide pollination networks in semi-natural dry grasslands across Europe. Each matrix represents the plants in rows and their pollinators in columns. Each cell in the matrix represents the number of visits by each pollinator.

**Variables Naming and abbreviations**: Row and column names of each matrix contain the acronym of the scientific name of each species. Three letters for the genus and three letters for the species. In cases where taxonomic identification to species has not been achieved, the identified genus or family is indicated. The full scientific name of each species can be found in Appendices 2 and 3 of the supporting information of the associated articl...