. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 111. \ c â TAILED ; i;i ,i-i;l>r< ITION i-:. the docs in all three study areas bred ;it aboul the same time. The peak of conception Eor L949 was aboul the last week of October and the first two weeks of November. The dates of conception for all three areas are combined in Fierure October November December FIGURE 5. The time of breeding (1949) for 37 block-tailed does From Figure 5 it is evident that yearling does bred
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 111. \ c â TAILED ; i;i ,i-i;l>r< ITION i-:. the docs in all three study areas bred ;it aboul the same time. The peak of conception Eor L949 was aboul the last week of October and the first two weeks of November. The dates of conception for all three areas are combined in Fierure October November December FIGURE 5. The time of breeding (1949) for 37 block-tailed does From Figure 5 it is evident that yearling does bred later than the average of older does. Also the medium aged does tended to breed at the peak of the rut, while the old does formed the most erratie class, breed- ing both early and late. The observation that yearlings tend to breed late is commonly made among livestock. In New York (Cheatum and Morton, 1946), where fawns often breed, it has been found that their average breeding date falls about a month later than that of the older does. DISCUSSION The evidence here reported points to the conclusion that the three groups of deer under study had different reproductive rates. Since each group of deer was from a different chaparral cover type, it is logical to inquire whether the differences in vegetative cover might not account for the differences in productivity. To clarify the relationships between cover, nutrition and reproduction it is necessary to investigate deer diets and the nutritional values of these diets. Such a studv is now under wav. SUMMARY This report is based on a collection of does made on three contrasting chaparral cover types in Lake County, California, during the months of February, March, April and May, 1950. These cover types were: (A) opened brush (interspersed with herbaceous cover) ; (B) a 1948 wild- fire burn; (C) mature brush. It was found that these deer probably. Please note that these images are extracted from scanned page images that may have b
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