. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. HIBERNATION OF CITELLUS TRIDECEMLINEATUS 125 is probably significant (D/PE = = ) because in otber experiments normal males bave not bibernated much at this time of the year and because a castration experiment with females at this time of year re- sulted similarly. In five experiments (January to March), with an average of 3 animals in each, the spayed females hibernated 45 per cent and the normal females only 30 per cent of the days in the re-. ^ 90 100 110 120 130 140 150 Weights in grams to nearest te n Aniw/s 8 27 43
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. HIBERNATION OF CITELLUS TRIDECEMLINEATUS 125 is probably significant (D/PE = = ) because in otber experiments normal males bave not bibernated much at this time of the year and because a castration experiment with females at this time of year re- sulted similarly. In five experiments (January to March), with an average of 3 animals in each, the spayed females hibernated 45 per cent and the normal females only 30 per cent of the days in the re-. ^ 90 100 110 120 130 140 150 Weights in grams to nearest te n Aniw/s 8 27 43 40 36 37 20 7 9 2 FIG. 1. Graph showing relation of weight to tendency to hibernate in ground squirrels. The bottom row of figures gives the number of animals having the weight given directly above. frigerator. The spayed animals were in the refrigerator 34 per cent of the total days in the refrigerator before they hibernated whereas the controls were in the refrigerator 45 per cent of the total days before they hibernated. As the number of females is small and the difference not so striking as in the case of the males, these data were not treated. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
