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|Other Titles:||Population Size and Habitat Use of the Taiwan Alpine Skink, Sphenomorphus Taiwanensis, at Tatachia Area in the Central Mountain Range, Taiwan|
Department of Life Science, NTNU
The habitat use and population size of the high mountain skink, Sphenormaorphus taiwanensis, were investigated once each month at three smapling sties in the Tatachia area from November 1999 to September 2004. At Shihshan site, the change in the number of S. taiwanensis from 2001 to 2004 was estimated by monthly survey using two methods: the mark-recapture method and the capture rate method. we performed mark-recapture method in two contingent half-day surveys each month, marking individuals by clipping their toes in the first dya, re-sampling in the second day, then estimating the population size by Baily’s method. the capture rate method was defined as the ratio of the number of the captured individuals to the number of turned over covers. The results showed that (1) The Largest population size was found at Shihshan (石山) site, while Shenmu (神木) site had a smaller population size and Lulin (鹿林) site had no population at all. In addition, the number of S. taiwanensis may be related to the abundance of sunlight and potential habitat rocks, (2) We found most of the S. taiwanensis under rock covers, and rarely under logs or other kinds of covers, (3) S. taiwanensis were most frequently hiding under covers with moist ground underneath than with dry ground; with vegetation than without vegetation, and (4) A decline in the population size of S. taiwanensis in 2004 might due to human disturbance. That is, the removal of potential habitat rocks during the spring of 2004.
|Appears in Collections:||生物學報|
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