With a literature review, scientists Sara Mendes and Ruben Heleno have reconstructed the first European-wide seed dispersal network and evaluated the conservation status of interactions by assessing each interacting partner’s IUCN (International Union for Conservation of Nature) conservation status and population trends. The CFE/TERRA researchers discovered that a third of the disperser species and interactions face potential extinction and that 30% of the plant species have most of their dispersers threatened or declining.