Figure A1.

Average bimonthly air temperatures recorded by the Embalse El Yeso weather station, Metropolitan Region, Chile (33°40’36” S, 70°05’19”S W, 2475 m.a.s.l.) located in the subalpine zone, ca. 36 km to the south of the study site. Based on data available as of 1978. Source of data: CR2 Climate Explorer available at http://explorador.cr2.cl/, accessed 30 September 2020. The warmest period of the summer in the region is the second half of January. The letters on the x-axis refer to months starting in August (early spring) and ending in July (late winter).