. The ecology and life history of the common frog (Rana temporaria temporaria). Rana temporaria. GENERAL LIFE HISTORY OF THE TADPOLES 37 reaching 1,193 mg. There were large fluctuations in the size of suc- cessive collections at the same place, and it is likely that, in this pond as. 10 20 30 APRIL o 20 30 MAY 9 19 29 JUNE 9 19 29 8 JULY AUG, Fig. 12. Hospital Pond, 1949 The same pond, observed throughout the season. The graph shows good growth, no great contrasts in the weights between the colonies, except on one date, and late metamorphosis. in the others, there were nomadic colonies of tadp
. The ecology and life history of the common frog (Rana temporaria temporaria). Rana temporaria. GENERAL LIFE HISTORY OF THE TADPOLES 37 reaching 1,193 mg. There were large fluctuations in the size of suc- cessive collections at the same place, and it is likely that, in this pond as. 10 20 30 APRIL o 20 30 MAY 9 19 29 JUNE 9 19 29 8 JULY AUG, Fig. 12. Hospital Pond, 1949 The same pond, observed throughout the season. The graph shows good growth, no great contrasts in the weights between the colonies, except on one date, and late metamorphosis. in the others, there were nomadic colonies of tadpoles, some of which fared much better than others. From these examples of ponds that were either known to have nurtured metamorphosed frogs, or at least probably did so, I turn to two others. In both, disaster overtook all the tadpoles. In one, an interesting colony was studied as a natural process of extinction took Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Savage, Ronald Maxwell. New York, Hafner Pub. Co.
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Keywords: ., bookcentury1900, bookcollectionbiodiv, booksubjectranatemporaria
