. The ecology and life history of the common frog (Rana temporaria temporaria). Rana temporaria. ES£ SW SE SSW SSE S MIGRATION NNW N NNE NW NE WNW ENE W WSW SW. ESE SE SSW SSE Fig. 26. Wind Direction and Migration to Large Totteridge over the Road The wind diagram shows the frequency of the winds over the period, the length of the hnes being in proportion to the frequencies at each direction. Note that there were no south-east winds in this period. The migration diagram shows, on the same scale, the amount of migration, that took place when the wind was blowing in the indicated direction. If t
. The ecology and life history of the common frog (Rana temporaria temporaria). Rana temporaria. ES£ SW SE SSW SSE S MIGRATION NNW N NNE NW NE WNW ENE W WSW SW. ESE SE SSW SSE Fig. 26. Wind Direction and Migration to Large Totteridge over the Road The wind diagram shows the frequency of the winds over the period, the length of the hnes being in proportion to the frequencies at each direction. Note that there were no south-east winds in this period. The migration diagram shows, on the same scale, the amount of migration, that took place when the wind was blowing in the indicated direction. If these frogs had migrated at random, this diagram would be the same as the wind diagram. It is clearly quite different, showing a large excess of migration when the wind was in the southerly direction, that is, blowing across the pond to the 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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License: Licensed
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Keywords: ., bookcentury1900, bookcollectionbiodiv, booksubjectranatemporaria
