JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Society for the Study of Amphibians and Reptiles is collaborating with JSTOR to digitize, preserve and extend access to Journal of Herpetology. FRILLNECK LIZARD BEHAVIOR FRILLNECK LIZARD BEHAVIOR lizards, Chlamydosaurus kingii (Agamidae), in tropical Australia. Aust. Wildl. Res. 16:491-500. TINKLE, D. W. 1967. The life and demography of the side-blotched lizard, Uta stansburiana. Misc. Publ. Mus. Zool. Univ. Michigan 132:1-182. WHITTIER, J. M., AND D. CREWS. 1987. Seasonal reproduction: patterns and control. In D. O. Norris and R. E. Jones (eds.), Hormones and Reproduction in Fishes, Amphibians, and Reptiles, pp. 385-409. Plenum, New York. lizards, Chlamydosaurus kingii (Agamidae), in tropical Australia. Aust. Wildl. Res. 16:491-500. TINKLE, D. W. 1967. The life and demography of the side-blotched lizard, Uta stansburiana. Misc. Publ. Mus. Zool. Univ. Michigan 132:1-182. WHITTIER, J. M., AND D. CREWS. 1987. Seasonal reproduction: patterns and control. In D. O. Norris and R. E. Jones (eds.), Hormones and Reproduction in Fishes, Amphibians, and Reptiles, pp. 385-409. Plenum, New York. YOUNG, I. R., S. MESIANO, R. HINTZ, D. C. CADDY, M. M. RALPH, AND C. A. BROWNE. 1989. Growth hormone and testosterone can independently stimulate the growth of hypophysectomised prepubertal lambs without any alterations in circulating concentrations of insulin-like growth factors. J. Endocrinol. 121:563-570. Accepted: 3 October 1998. YOUNG, I. R., S. MESIANO, R. HINTZ, D. C. CADDY, M. M. RALPH, AND C. A. BROWNE. 1989. Growth hormone and testosterone can independently stimulate the growth of hypophysectomised prepubertal lambs without any alterations in circulating concentrations of insulin-like growth factors. ABSTRACT.-I studied the use of calling and retreat sites by Phyllodytes luteolus in an ornamental bromeliad garden where phytotelmata in bromeliad leaf axils are abundant.
I investigated individual spacing and activity patterns. Among the nine bromeliad species cultivated in the garden, the frogs used Vriesia neoglutinosa and plants structurally similar to it more than expected according to their availability. Phyllodytes luteolus uses V neoglutinosa in its natural habitat. For one bromeliad species (Sp 1), frogs usedproportionally more those plants that were higher (57.7 ? 8.4 cm above ground), had lower pH (4.94 ? 0.88), and deeper phytotelmata (5.38 ? 2.09 cm). Plant height, phytotelmata depth, and pH had no influence on frogs' choices in the other bromeliad species tested. Males were active all night, and calling activity was highest immediately after sunset. Some males called during the day. Males did not exibit aggressive behavior towards other males, including those intruding onto their c...