DODD: ECOLOGY OF SANDHILLS POPULATION OF GASTROPHRYNE CAROLINENSIS 27

 A loo
 o 1986 1987
 137 M 180M
 S 80 89F 189F
 a-
 36J 5U
 R 60 326 U


 r 40
 z




 14 18 22 26 30 34 21 25 29 33
 SUL (mm) SUL (mm)
 SMales EFemales OJuveniles MUnknowns



 B 200
 1988
 374 M
 1 50 239 F
 1989
 8J
 219M 1990
 ) 100 181 55 M
 222 J 66
 LU 66 F
 1 J
 1 U
 z 50



 11 15 19 23 27 31 11 15 19 23 27 31 35 23 27 31
 SUL (mm) SUL (mm) SUL (mm)
 HMales N Females E Juveniles E Unknowns

Figure 6. Annual variation in size-class structure of Gastrophryne carolinensis at Breezeway Pond, Putnam
Co., Florida. A. 1986 -1987. B. 1988-1990. An additional 1679 juveniles < 15 mm SUL were captured in
1986. Note the difference in scale.


recorded (Table 8). Most multi-year recaptures were marked in one year and
observed during the following year. Multi-year recaptures included both
immigrants to and emigrants from the pond throughout the activity season, and
made it impossible to determine how often they were caught within a season.
 The size-class distribution of toads captured after one year spanned nearly the
entire range of size classes captured during the study (Fig. 7). However, the size-
class distributions of eastern narrow-mouthed toads captured after two and three