Table 2. Shrub species occurring in patches of continuous cover ≥2 m2 within the Yosemite Forest Dynamics Plot in 2010.
Species | Family | Cover (m2) | Demography plot data | YFDP extrapolation | ||
Densitya (stems/m2) | Biomass (kg/m2) | Density (stems/ha) | Biomass (Mg/ha) | |||
Arctostaphylos patula | Ericaceae | 2,524 | 5.333 | 14.747 | 526 | 1.454 |
Ceanothus cordulatus | Rhamnaceae | 1,220 | 1.667 | 1.189 | 79 | 0.057 |
Ceanothus integerrimus | Rhamnaceae | 194 | 7.875 | 10.427 | 60 | 0.079 |
Ceanothus parvifolius | Rhamnaceae | 187 | 3.250 | 1.527 | 24 | 0.011 |
Chrysolepis sempervirens | Fagaceae | 13,082 | 3.167 | 1.464 | 1,618 | 0.748 |
Corylus cornuta var. californica | Betulaceae | 13,310 | 1.000 | 1.565 | 520 | 0.814 |
Cornus serecia | Cornaceae | 2,320 | 8.667 | 6.087 | 785 | 0.552 |
Leucothoe davisiae | Ericaceae | 2,151 | 0.250 | 2.430 | 21 | 0.204 |
Vaccinium uliginosum | Ericaceae | 2,937 | 0.083 | 1.069 | 10 | 0.123 |
Sambucus racemosa b | Adoxaceae | 13 | 1.000 | 1.565 | t | 0.001 |
Rhododendron occidentale c | Ericaceae | 687 | 0.083 | 1.069 | 2 | 0.029 |
Ribes nevadense c | Grossulariaceae | 7 | 0.083 | 1.069 | t | t |
Ribes roezlii d | Grossulariaceae | 66 | 0 | 0.534 | 0 | 0.001 |
Total | 38,698 | 3,645 | 4.103 |
Baseline density and biomass equations were generated from 25, 2 m×2 m shrub demography plots, and allometric equations from [90].
Stems ≥1 cm dbh.
Substituted biomass and density for Corylus cornuta var. californica.
Substituted biomass and density for Vaccinium uliginosum.
Substituted one half the biomass of Vaccinium uliginosum. No stems reach 1 cm dbh.
t – trace; <1 stem/ha; <1 kg/ha.