File:California fish and game (20504283142).jpg

Title: California fish and game
Identifier: californiafishga38_4cali (find matches)
Year: [1] (s)
Authors: California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game
Subjects: Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons
Publisher: (San Francisco, etc. ) State of California, Resources Agency, Dept. of Fish and Game
Contributing Library: California Department of Fish and Game
Digitizing Sponsor: Internet Archive

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478 CALIFORNIA FISH AND GAME REGRESSION OF NUMBER OF BRUSH SEEDLINGS UJ a: ON DENSITY OF HERBACEOUS COVER te. bJ Q. (A O O UJ llJ z 3 tr. ffi a: tij ffi Z Z
Text Appearing After Image:
PER CENT DENSITY OF HERBACEOUS COVER FIGURE 17. The line shows the negative correlation between number of brush seedlings and density of herbaceous cover. The plotted points are based on figures from four replications for each density class. As the grass density increased the number of brush seedlings decreased. The measurements were made late in the summer. The close relationship between grass density and brush seedlings increases the need for a fairly dense cover of grasses the first year in opening chamise brush. STEPS IN OPENING CHAMISE BRUSHLAND Several steps in the operation of opening chamise brushland are now well understood on the basis of experiments and are outlined below. It is logical to assume that the more nearly the areas in question resemble the general area studied in Lake County, the more closely these steps will apply. Knowledge of both the game population and the plant popu- lation in the brush area to be manipulated and managed is essential. 1. Location of Deer and Their Approximate Density. The success of opening chamise brushlands is dependent upon the presence of at least a few deer in the general locality. There is small possibility of luring deer long distances to areas of low concentration simply by opening the brush. A total absence of deer may indicate a lack of water or some other limiting factor; in this case opening of the brush may be of little or no benefit. Information about the number of deer and their location may be gained accurately enough by reconnaissance through the area, or by noting kill of bucks during past hunting seasons, or by testimony of local residents and sportsmen. 2. Selection of Areas. Chamise brushlands vary widely in such fea- tures as soils and topography. Some are better adapted to growing grasses than others. In beginning a program of managing brush, the more pro- ductive areas should be selected first, areas where there is reasonable

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