Fig. 3: Frequency of haplotypes of C. pulla along an artificial mountain slope (temperature gradient).
From: Climate warming may increase the frequency of cold-adapted haplotypes in alpine plants

a–c, Elevational distribution of haplotypes at the beginning (a) and end (c) of the simulation as well as the overall frequency change during the simulation period (b). Colours indicate warm-adapted (red) to cold-adapted (blue) haplotypes. Simulations assumed an increase in temperature of 4 C° over 80 yr. The niche of each of the five different haplotypes comprised 75% of the species’ niche breadth and was determined by one diploid locus (compare Extended Data Fig. 6). As temperature increases, the population shifts upslope (to the left) but the warm-adapted haplotype (red) is blocked by intraspecific competition. As a result, the proportion of individuals carrying the cold-adapted haplotype increases with warming.