Summary
Timing of metamorphosis and size at metamorphosis were examined for Hyla crucifer under two densities in the laboratory. Results agree with previously known relationships for ranids and bufonids: at higher densities developmental time is longer, mean size at metamorphosis is smaller, and both parameters have greater variance than at lower densities. Density also affects energy accumulation: under ad libitum feeding conditions, an average individual raised at a higher density is able to accumulate less energy before metamorphosis than an average individual raised at a lower density. The suggestion is made that, in addition to growth and differentiation rates, energy accumulation may be important in determining when amphibian metamorphosis occurs.
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References
Adolph EF (1931) The size of the body and the size of the enviroment in the growth of tadoples. Biol Bull 61:350–375
Brockelman WY (1969) An analysis of density effects and predation in Bufo americanus tadpoles. Ecology 50:632–644
Calow P, Jennings JB (1974) Calorific values in the phylum Platyhelminthes: The relationship between potential energy, mode of life and the evolution of enteroparasitism. Biol Bull 147:81–94
DeBenedictis PA (1974) Interspecific competition between tadpoles of Rana pipiens and Rana sylvatica: an experimental field study. Ecol Monogr 44:129–151
Griffiths I (1961) The form and function of the fore-gut in anuran larvae (Amphibia, Salientia) with particular reference to the manicotto glandulare. Proc Zool Soc London 137:249–283
Gromko MH, Mason FS, Smith-Gill SJ (1973) Analysis of the crowding effect in Rana pipiens tadpoles. J Exp Zool 186:63–72
John KR, Fenster D (1975) The effects of partitions on the growth rates of crowded Rana pipiens tadpoles. Am Midl Nat 93:123–130
Licht LE (1967) Growth inhibition in crowded tadpoles: intraspecific and interspecific effects. Ecology 48:736–745
Paine RT (1971) The measurement and application of the calorie to ecological problems. Ann Rev Ecol Syst 2:145–164
Phillipson J (1964) A miniature bomb calorimeter for small biological samples. Oikos 15:130–139
Reiners WA, Reiners NM (1972) Comparison of oxygen-bomb combustion with standard ignition techniques for determining total ash. Ecology 53:132–136
Richards CM (1958) The inhibition of growth in crowded Rana pipiens tadpoles. Physiol Zool 31:138–151
Richards CM (1962) The control of tadpole growth by alga-like cells. Physiol Zool 35:285–296
Rose SM (1960) A feedback mechanism of growth control in tadpoles. Ecology 41:188–199
Savage RM (1952) Ecological, physiological and anatomical observations on some species of anuran tadpoles. Proc Zool Soc London 122:467–514
Smith-Gill SJ, Berven KA (1979) Predicting amphibian metamorphosis. Am Nat 113:563–585
Steinwascher K (1978) Interference and exploitation competition among tadpoles of Rana utricularia. Ecology 59:1039–1046
Wilbur HM (1976) Density-dependent aspects of metamorphosis in Ambystoma and Rana sylvatica. Ecology 57:1289–1296
Wilbur HM (1977a) Density-dependent aspects of growth and metamorphosis in Bufa americanus. Ecology 58:196–200
Wilbur HM (1977b) Interactions of food level and population density in Rana sylvatica. Ecology 58:206–209
Wilbur HM, Collins JP (1973) Ecological aspects of amphibian metamorphosis. Science 182:1305–1314
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Crump, M.L. Energy accumulation and amphibian metamorphosis. Oecologia 49, 167–169 (1981). https://doi.org/10.1007/BF00349184
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DOI: https://doi.org/10.1007/BF00349184