A new method for investigating Phrynocephalus vlangalii population density

Abstract

Abstract: By the methods of burrow depth,mark-recapture and burrow account,this paper investigated the Phrynocephalus vlangalii population density on zoige desert in September 2002.The results showed that the population density obtained by these methods was 190.4,76.8 and 250.7 ind·1 000 m^-2,respectively.Burrow depth method was proved to be highly reliable after comparing and analyzing the results,because Phrynocephalus is a kind of cold-blood animal not able to live in the environment where temperature is below the lethal temperature(-2.5℃) for a long time but inhabit in the burrows deeper than the maximum depth of frozen earth to live through the long cold winter,which is a behavior mechanism of P.vlangalii to protect itself from low temperature.It's suggested that burrow depth method could be applicable to other species of Phryhnocephalus distributed in China.

Key words: Combined pollution, Orthogonal test, Hydrolase, Activity

CLC Number:

Q958

WU Pengfei, ZENG Zongyong, WANG Yuezhao, ZHU Bo. A new method for investigating Phrynocephalus vlangalii population density[J]. cje, 2005, (10): 1241-1244.

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