FIGURE 5 in Climatic conditions may structure the distribution of Syzygiella rubricaulis (Nees) Steph., a disjunct and high elevation species

FIGURE 5. Principal component analysis based on 21 Worldclim dataset environmental variables extracted from the 164 spatially unique records. The environmental variables included: temperature variables: annual mean temperature (bio 1), mean diurnal temperature range (bio 2), isothermality (bio 3), temperature seasonality (bio 4), maximum temperature of warmest month (bio 5), minimum temperature of coldest month (bio 6), temperature annual range (bio 7), mean temperature of wettest quarter (bio 8), mean temperature of driest quarter (bio 9), mean temperature of warmest quarter (bio 10), mean temperature of coldest quarter (bio 11); and precipitation variables: annual precipitation (bio 12), precipitation of wettest month (bio 13), precipitation of driest month (bio 14), precipitation seasonality (bio 15), precipitation of wettest quarter (bio 16), precipitation of driest quarter (bio 17), precipitation of warmest quarter (bio 18), precipitation of coldest quarter (bio 19); as well as water vapor pressure (water_vapo), and solar radiation (solar_radi).