. Chasse et pêche de la Californie. Pêche -- Californie ; jeu et jeu-oiseaux -- Californie ; Poissons -- Californie ; groupes de population animale ; pêches ; gibier, poissons. 54 CALJFUHMA 1'1811 AM) (JA.MOI élevés sur les différents traitements pas eonld deterniined site local parce qu'être eompetition mnskcd et différences ; anionp iiiy : traiter les différences, onnts iiwide ("en sliowed J'exclos ;i- deiisily des semis de 1,8 par s(jii;ire fdot llie en DIH :''spi nl' l !l'i(i. Lorsque l'étude a été résilié le stand était encore très dense-0,6 plants par m². Un nnmber ceanotlms wliich du semis de germi
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. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 54 CALJFUHMA 1'1811 AM) (JA.ME rates on the different treatments eonld not be deterniined because local site and eompetition differences mnskcd ;iiiy differences anionp: treat- ments, ("onnts iiwide in exclosure I sliowed ;i seedling- deiisily of 1.8 per s(jii;ire fdot in llie spi'ihL:' nl' l!l'i(i. When the study was terminated the stand was still very dense—0.6 seedlings per sq. ft. A nnmber of ceanotlms seedling's wliich germinated in tlie sprinpr of If);");") wei'e tM<;<i-e(l in ech)siire I. and the hei<ihts were recoriled each spring; and fall. Wedgeleaf ceanotlms seedlings that were browsed con- tinuously and those protected foi' onl one year made -ei'y little ^i-owth in height after the second season. Seedlings protected I'oi- two and three years made rapid n])ward gi'owth while ])rotected but, as the exclosnres were opened, browsing caused a reduction in height and sharply eur- tail(Ml furlhei- gains. Chaparr;il whitethorn seedlings were able to make small but steaxly gains in height under continuous browsing. This species grows more rapidly than wedgeleaf ceanotlms, and develops thorn-like twigs which deter browsing animals. By the fall of 1960, significant height differences in the ceanothus seedlings still prevailed among the treatments within exclosnres (Figure 1). At that time all seedlings had been browsed following ])rotectiou, with six full seasons of growth. Continuously browsed wedgeleaf cea- nothus seedlings were taller than those protected the first year. When. FIGURE 3. Flannel bush sprout which was profected for three years and browsed two years. The main stems have been broken off or bent down by cattle, effectively "topping" the sprout. Picture was taken in the spring after deer had stripped off practically all leaves within reach.. Please note
