We described the taxonomic relationship of pitvipers
population of Central Alborz mountains of Iran. The morphological data on
Gloydius halys snakes; 8 female and 11 male snake from three Lar, Taleghan and
Gachsar regions of Central Alborz Mountains Iran, showed sexual dimorphism. The
results of independent samples test showed that body length (SVL) in male was
48 ±10 cm that was more than SVL in female, 43 ± 6 cm (P≤0.05), head length
(HL) in male was 2.2 ± 0.3 cm and more than females, 1.9±0.2 cm at P=0.01. The
mean height of the head (HH) was 0.95 ± 0.04 cm and more than 0.52 ± 0.70 cm,
respectively (P = 0.04). The size of the Sq front in male snakes was 22.6 ± 0.8
and 21.7 ± 0.7 in female (P = 0.02), Ciruocular right in male was 5.6 ± 0.5 and
in female snake 5.13 ± 0.3 (P = 0.02), the size of the CG trait for male and
female was respectively 9.6 ± 0.8 and 11.1 ± 0.8 at P = 0.007, the size of the
ventral scales number for males was 153.7 ± 4.2 and for females 148 ± 5.9, P =
0.03, and the subcaudal for male was
37.18 ± 1.5 and females 32.7±1.9, (P≤0.05). Also, in the multivariate analysis
of the main components, the separation of male and female samples is evident.
In the geographical variation, there was a significant difference in the seven
characters between different populations, and in the hierarchical clustering
analysis, the separation of three populations of Lar, Taleghan and Gachsar was observed.
Result reveals the geographical differences in Gloydius halys of Central Alborz mountains of Iran and tow
populations from Lar and Takht –E-Solyman have close relations and somehow
distinct from halys of Gachsar population and dimorphism was observed in female
and male of all three populations.
No comments:
Post a Comment