Life-history differences among lakes. (a) juvenile growth, (b) age at maturation, (c) size at maturation, (d) clutch size, (e) interclutch interval, and (f) unstandardized scores from the discriminant function analysis. Closed circles, lake-type means; grey circles, individual lake means. Letters denote significant differences among lake types based upon post hoc Tukey tests. Error = ±1 s.e.