LITERATURE CITED
- Beck , C. W. 1997 . Effect of changes in resource level on age and size at metamorphosis in Hyla squirella. . Oecologia , 112 : 187 – 192 .
- Berven , K. A. 1981 . Mate choice in the wood frog, Rana sylvatica. . Evolution , 35 : 707 – 722 .
- Berven , K. A. 1990 . Factors affecting population fluctuations in larval and adult stages of the wood frog (Rana sylvatica) . Ecology , 71 : 1599 – 1608 .
- Brown , L. E. and Rosati , R. R. 1997 . Effects of three different diets on survival and growth of larvae of the African clawed frog Xenopus laevis. . The Progressive Fish-Culturist , 59 : 54 – 58 .
- Burrows , G. E. and Tyrl , R. J. 2001 . Toxic plants of North America Ames : Iowa State University Press .
- Collins , J. P. 1979 . Intrapopulation variation in the body size at metamorphosis and timing of metamorphosis in the bullfrog, Rana catesbeiana. . Ecology , 60 : 738 – 749 .
- Crump , M. L. 1989 . Effect of habitat drying on developmental time and size at metamorphosis in Hyla pseudopuma. . Copeia , 1989 : 794 – 797 .
- Gosner , K. L. 1960 . A simplified table for staging anuran embryos and larvae with notes on identification . Herpetologica , 16 : 183 – 190 .
- Hill , W. 1996 . “ Effects of Light. ” . In Algal Ecology Edited by: Stevenson , R. J. , Bothwell , M. L. and Lowe , R. L. 121 – 148 . California : Academic Press .
- Howard , R. D. 1985 . Proximate mechanisms of sexual selection in wood frogs . Evolution , 39 : 260 – 277 .
- Kupferberg , S. J. 1997 . The role of larval diet in anuran metamorphosis . American Zoologist , 37 : 146 – 159 .
- Maeda , N. and Matsui , M. 1989 . Frogs and Toads of Japan. Bun-ichi Sogo Shuppan, Tokyo.
- Scheiner , S. M. and Gurevitch , J. , eds. 2001 . Design and Analysis of Ecological Experiments, , 2nd edition Oxford : Oxford University Press .
- Tomioka , K. 2000 . Long-term dynamics of breeding activity of two brown frogs Rana japonica and R. ornativentris in a bottomland rice paddies in the northern Kanto plain, Japan . Journal of the Natural History Museum and Institute, Chiba. Special Issue. , 3 : 9 – 16 .