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You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Elevational variation in body size of Phrynocephalus vlangalii in the North Qinghai-Xizang (Tibetan) Plateau

Yuanting Jin, Naifa Liu and Jinlu Li (2007)

Elevational variation in body size of Phrynocephalus vlangalii in the North Qinghai-Xizang (Tibetan) Plateau

BELGIAN JOURNAL OF ZOOLOGY, 137(2):197-202.

We examined elevational and environmental aspects of body size variation in the Qinghai toad-headed lizard, Phrynocephalus vlangalii, using principal component analysis (PCA) of 9 morphological traits taken from 565 lizards from 17 populations. The first principal component (PCI) accounted for 67\% of the size variation in males and 62\% in females. For both males and females, PCI decreased with increasing elevation. When analyzed in relation with respect to environmental variables, body size showed positive relationship with temperature, air pressure, and activity season length, but showed weaker or inconsistent relationships with rainfall and humidity. The described pattern is the converse of Bergmann's rule for this lizard species and suggests that this body size pattern is driven by temperature, air pressure or length of the activity season.

Altitudinal variation; Bergmann's rule; phrynocephalus vlangalii; body size
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
1903-1923
​Annales de la Société royale malacologique et zoologique de Belgique
 
1923-1989
Annales de la Société Royale Zoologique de Belgique
 
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Belgian Journal of Zoology