Transects of the butterfly monitoring

The network of transects in Sierra Nevada is distributed from 700 to 3,100 m a.s.l. in nine types of ecosystems, broadly characterized as: aquatic systems (occupying less than 1% of the transects), grasslands, rocky high mountains ecosystems (27%), high mountain wet pastures (4%), high mountain scrub dominated by high mountain scrublands (35%), holm oak woods (2%), medium mountain pastures (9%), medium mountain scrub (8%), coniferous plantations (less than 1%), pyrenean oak forests (11%) and Pinus sylvestris autochthonous pine forests (2%).