Number of specimens considered, by analysis.

K = coefficient of condition, Morpho = morphological analysis of the body, Diet = vacuity analysis and in parenthesis the DNA barcoding sub-sample. Pt = P. toxostoma, Cn = C. nasus, Sur = Suran, Ber = Berre, Orb = Orbieu, Che = Chée, All = Allier, Mir = Miribel, Ron = Roussillon, Ros = Rosières, Bau = Labeaume, Jus = Saint-Just, Bue = Buech, Man = Manosque, Per = Pertuis, Avi = Avignon, Spc = Serre-Ponçon. Data previously published are in italics [29,34], new data are in bold.All specimens were genotyped, and only subgroups of specimens were used in the various analyses, because size, weight measurements, images of the body or feces was unavailable.