Fig. 4From: Phenological drivers of ungulate migration in South America: characterizing the movement and seasonal habitat use of guanacosA) Mean normalized difference vegetation index (NDVI) curves starting winter 2019 to summer 2022, for 200 m altitudinal ranges covering the elevation gradient of the study area that includes the elevated Buenos Aires Plateau, in Patagonia, Argentina. Blue shaded areas correspond to the periods in which guanacos are present in their winter range located at lower altitudes. B–C) Boxplots showing mean cumulative NDVI values each individual would have experienced if it had remained in its winter or summer range, and the NDVI values it actually experienced throughout the year, B for each year of the study duration and C for migratory and non-migratory individualsBack to article page