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Influence of Food Quality and Quantity on Early Larval Growth of Two Anurans
Kurt Steinwascher and Joseph Travis
Vol. 1983, No. 1 (Feb. 10, 1983), pp. 238-242
Stable URL: http://www.jstor.org/stable/1444720
Page Count: 5
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Larval growth of two anuran species on laboratory diets revealed different patterns of response to similar arrays of food levels and composition. The early growth of Hyla chrysoscelis tadpoles was related to the particular ratio of protein to carbohydrate in the food substrate. Growth was greatest at the highest ratios of protein to carbohydrate offered, not at the highest food levels. The growth of Rana clamitans was unrelated to the specific protein:carbohydrate ratio of the food source, and responded proportionately to changes in protein content and food level. These divergent responses probably reflect ecological differences in the exploitation of resources by these species.