Habitat Tree: Home for Biodiversity is a research project aimed at studying the specific biodiversity associated with mature and old-growth trees. Trees were studied in various areas, from urban parks to protected areas of high natural value (the Abruzzo, Lazio, and Molise National Park, Sasso Simone Natural Park).

Beyond the scientific results (i.e., a tree in the center of Milan can host up to 250 different species in its dendromicrohabitats – excluding bacteria –) and the management implications (identification and proposal of new techniques to safeguard mature trees in urban environments, where they are often considered a problem rather than an opportunity), this research has developed several environmental education programs.

First, between September and November 2024, an exhibition was organized at the Natural History Museum of Milan, illustrating the concept of tree habitat. This exhibition received approximately 20,000 visitors per month and generated several collateral events (training and outreach courses). The exhibition enabled the creation of a large-scale reconstruction of a habitat tree, which now serves as a traveling installation available to museums and events.

Ten theses in the Primary Education Sciences program were then supervised, where prospective teachers analyzed how tree representations vary in children's books and textbooks, and developed practical activities with children in the schools where they were completing their internships to teach the concept of tree habitat.

A story-telling show has been created with the collaboration of the Master Science communication of Insubria University.

Finally, a final result was the development of a program to translocate a relict population of Cerambix cerdo, a species listed in Annex II of the Habitats Directive, based on the feedback from citizens who had learned about the Habitat Tree project.