. The ecology and life history of the common frog (Rana temporaria temporaria). Rana temporaria. GENERAL LIFE HISTORY OF THE TADPOLES 27 this spell, all through the season. The spawn site dried on 23rd June, although there was always enough water for the tadpoles in the rest of the pond. [b) 1948 (Fig. 6). This season was noteworthy as much for its contrasts as for its resemblances to 1947. The winter had been mild. 10 20 30 APRIL 10 20 30 MAY 9 19 29 JUNE 9 19 29 JULY Fig. 6. Dagger Lane Pond, 1948 Note in this year the fairly steady rise in weights until the later half of June. In this and t
. The ecology and life history of the common frog (Rana temporaria temporaria). Rana temporaria. GENERAL LIFE HISTORY OF THE TADPOLES 27 this spell, all through the season. The spawn site dried on 23rd June, although there was always enough water for the tadpoles in the rest of the pond. [b) 1948 (Fig. 6). This season was noteworthy as much for its contrasts as for its resemblances to 1947. The winter had been mild. 10 20 30 APRIL 10 20 30 MAY 9 19 29 JUNE 9 19 29 JULY Fig. 6. Dagger Lane Pond, 1948 Note in this year the fairly steady rise in weights until the later half of June. In this and the other graphs, some of the drop at the end of the season is due to the inclusion in the sample of metamorphosing tadpoles. and dry, and the season opened with the water level below normal. In May, however, the weather changed and the rest of the season was cool and rather wet. This is almost the reverse of the conditions in 1947. The pond looked entirely different. There were no patches of starwort, no visible algae, and the water was turbid and brown. Later in the season, many rushes grew from the bed of the pond to form a. 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
