Le casse di espansione lungo i fiumi Pesa ed Ombrone. Esperienze di miglioramenti ambientali a vantaggio degli impollinatori.

The steady loss of pollinating insect biodiversity is due to multiple factors acting in synergy, among the main, habitat fragmentation and degradation. The EU has developed environmental legislation that often calls for the need to reverse the decline of pollinators through directives covering agricultural and urban environments and the implementation of research and monitoring of these organism community. In such a context, the Consorzio di Bonifica Medio Valdarno and the Department of Biology of the University of Florence have implemented an environmental improvement project for the conservation of pollinators in peri-urban and marginal located in detention basins. This three-year project involved the sowing of entomophilous plant mixtures followed by monitoring of vegetation development and of the wild bee community. This project has allowed the development of guidelines for the management of this type of areas in favour of this functional group of insects.