Figure 4

(A) Canonical correspondence analysis of the two-year follow up study in the La Coca locality (sampled sites: Negrines and Segundo Potrero). (B) Monthly relative abundances of Pseudosuccinea columella and dynamics of pH and water hardness in the two sampled sites within the La Coca locality. AV: aquatic vegetation, CH: Carbonate hardness, D: Simpson’s Diversity index, S: susceptible P. columella, R: resistant P. columella, T: temperature, TH: Total hardness.