. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 164 CALIFORNIA FISH AND GAME. FIGURE 2. A deer carcass showing extreme emaciation resulting from massive infestation by the African blue louse. Phofograph by William Casfle. DISCUSSION This louse ordinarily spends its entire life on its host. The nits or eggs are attached to the hairs and hatch in 7-1-4 days. From egg to maturity may take from 14-75 days. Subsequent studies on the Tejon Kanch have shown that as is the case with most l
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 164 CALIFORNIA FISH AND GAME. FIGURE 2. A deer carcass showing extreme emaciation resulting from massive infestation by the African blue louse. Phofograph by William Casfle. DISCUSSION This louse ordinarily spends its entire life on its host. The nits or eggs are attached to the hairs and hatch in 7-1-4 days. From egg to maturity may take from 14-75 days. Subsequent studies on the Tejon Kanch have shown that as is the case with most lice, the increase and decline of L. africanus are subject to weather conditions. There was a gradual increase in louse numbers by fall with maximum numbers noted in late winter and early spring. As air temperatures increased infestation declined until high summer temperatures were reached when it became difScult to find the parasite on deer. As a result of this cycle, parasitized animals would be in a weakened condition at that time of year when stress due to storms, snow and cold would be highest. During the course of the study on the Tejon Ranch, it was found that losses occurred during December and January, particularly during times of snowfall. Examina- tion of carcasses of deer at this time showed that nearly all were heavily parasitized by this louse and probably did not have the stamina to withstand the effect of weather. Simultaneously^ deer in the same area which were collected for study and found free of lice showed no effect from stress due to weather. Since the first finding of L. africanus on deer in Kern County, four other occurrences on deer have been established in California (Figure 3). These were (i) Hunter Liggett military reservation in Monterey County, (ii) the Parkfield area of Monterey County, (iii) Murrieta Can- yon in Ventura County, and (iv) near Winters in Yolo Please note that these images are extracted from scanned page images that
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