Phenotypic Variation in a Species Range: Another Look (Developmental Stability Study of the Meristic Variation in the Sand Lizard Lacerta agilis)

Variation of the meristic characteristics pholidosis in sand lizard, Lacerta agilis, was studied both laboratory experiments and natural populations. The total phenotypic variability assessed by variation sum number scales on left right sides body (l + r), while measure developmental stability, providing insight into degree fluctuating asymmetry, or variability, difference character values − r). Experimental incubation eggs at different temperatures demonstrates that minimal level kinds corresponds to a certain temperature, which can be characterized as an optimal one, increasing with increase decrease temperature from this regime. data demonstrate crucial role impact for under study. An north south center part species range, absence obvious trend geographic assumes observed diversity periphery range. results obtained indicate importance population phenogenetic approach, based stability study populations, provide information supposing possible nature