. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. 13 15 17 19 21 23 01 03 05 07 09 09 11 13 15 17 19 21 23 01 03 05 07 09 25 11 13 15 17 19 21 23 01 03 05 07 09 09 11 13 15 17 19 21 23 01 03 05 07 09 Figure 1. Diel activity of Ranodon sibiricus, based on counts in Brooks 1 and 5 in August 1994. Levels of sta- tistical significance: * P< or P<; ** P< or P< lux) in June was shorter than in August, about hrs., and the activity peaks of adults and large juveniles were narrower, at 23 (21) or 01 hrs. (Fig.
. Asiatic herpetological research. Reptiles -- Asia Periodicals; Amphibians -- Asia Periodicals. 13 15 17 19 21 23 01 03 05 07 09 09 11 13 15 17 19 21 23 01 03 05 07 09 25 11 13 15 17 19 21 23 01 03 05 07 09 09 11 13 15 17 19 21 23 01 03 05 07 09 Figure 1. Diel activity of Ranodon sibiricus, based on counts in Brooks 1 and 5 in August 1994. Levels of sta- tistical significance: * P< or P<; ** P< or P< lux) in June was shorter than in August, about hrs., and the activity peaks of adults and large juveniles were narrower, at 23 (21) or 01 hrs. (Fig. 2). The youngest stage (1 + ) showed activity peaks varying from 21 to 03 hrs. and also some diurnal activity. At least three times, larvae (one each time) were even registered directly exposed to sunshine, at 11, 13 and 17 hrs. Nevertheless, on the whole, the lar- vae definitely had a nocturnal pattern. The activity period of the species again fitted very well with the (shorter) dark period. The rise in activity from 19 to 21 hrs. was always significant (P< or ) in Brook 5, both for adults/juveniles and 1+ lar- vae, as was the decline from 03 to 05 hrs (P<, , or ), and usually even 01-03 hrs. for adults and juveniles in both brooks (P<, or ). The day-to-day variation in peak activity seen at midnight was not significant. The aquarium studies In the aquarium investigations in December 1994, the ranodons also showed a definite nocturnal activity, with peak activity at 20-22, 22-00 and/or 00-02 hrs. A cumulative curve for the whole period of investigation. 5 10- 15 20-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Asiatic Herpetological Research Society; Chung-kuo liang chi pa hsing tung wu hs©eh hui. Berkeley, Calif. : Asiatic Herpetological Research Soci
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