From March to October 2006, habitat characteristics of 31, 71, 31 crocodile lizard (Shinisaurus crocodilurus) samples and 50, 90, 51 comparing samples (no crocodile lizard was found in these samples) were observed in Luokeng crocodile lizard Nature Reserve, Guangdong in spring, summer, and autumn respectively, to determine the main ecological factors affecting habitat selection in this species. The main ecological factors affecting crocodile lizard habitat selection in each season were determined by comparison and stepwise discriminant analysis of fourteen ecological factors measured in crocodile lizard samples and comparing samples in each of the respective seasons. Analysis showed that in spring, percentage of sand in the stream and vegetation coverage were the two main ecological factors affecting crocodile lizard habitat selection. A stepwise discriminant model including only these two factors yielded a predicted accuracy of 97. 5% , the highest when compared to alternative models involving combinations of other sampled factors. In summer, percentage of
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