The site constitutes one of the last edges of a low alkaline bog in which endemisms and microthermal species survive, including important populations of Armeria helodes and Erucastrum palustre. The site also includes hygrophilous molinia meadows, white willow and black poplar woods. The site contains interesting examples of closed meadows ("pays a bochage"). It is an important refuge and reproduction site for Montagu’s harrier (Circus pygargus) and for Hen harrier (Circus cyaneus) wintering. The fauna of these wet habitats is not well known, but stands out for the presence of many valuable species, including Yellow-bellied toad (Bombina variegata), Italian crested newt (Triturus carnifex), Italian agile frog (Rana latastei) and Zootoca vivipara carniolica, while the populations of Vipera aspis francisciredi are considered particularly important as they are mostly isolated. Among the insects it is possible to recall the presence of Maculinea teleius and Coenonympha oedippus. European polecat (Mustela putorius) and Mediterranean water shrew (Neomys anomalus) are quite rarefied. The waters of the area include a rather variegated fish population, such as Spined loach (Cobitis taenia), European bullhead (Cottus gobio) and Crayfish (Austropotamobius pallipes).