TSF Beaver Impoundment




Site Identification

CWC Reference Number: 86
State: PA
County: Mifflin
Municipality: Bratton
USGS Quad: McVeytoun
Watershed: Juniata River
Hydrogeomorphic Class: Headwater Impoundment Beaver
Disturbance Class: Pristine
Dominant Vegetation Class: PEM
Wetland Area: NA
Year(s) Sampled: 1999



Vegetation

Mean Site Cover
Herbaceous: 79.3% (range 40-100%)
Woody: 42.9% (range 0-90%)

Dominant Species
Vegetation Type
Scientific name (common name)
NWI
Herbaceous Layer Sphagnum sp. (Sphagnum)
NI
Thelypteris noveboracensis (New York fern)
3
Dennstaedtia punctilobula (Hayscented fern)
5
Lindernia dubia (False pimpernel)
1
Juncus effusus (Soft rush)
1.67
Shrub Layer Tsuga canadensis (Eastern hemlock)
4
Berberis thunbergii (Japanese barberry)
4
Kalmia latifolia (Mountain laurel)
4
Hamamelis virginiana (American witch hazel)
3.67
Fagus grandifolia (Beech)
4
Tree Layer
Tsuga canadensis (Eastern hemlock)
4
Snag (Dead tree)
NI
Pinus strobus (Eastern white pine)
4
Acer rubrum (Red maple)
3
Betula allegheniensis (Yellow birch)
3


Weighted Indicator Status (dominant spp.)
Herbaceous: 2.28
Shrub: 3.98
Tree: 3.82
Indicator Status (all spp.)
Herbaceous: 2.10
Shrub: 3.95
Tree: 3.38
Species Richness:
Total: 81
Herbaceous: 64
Shrubs: 8
Trees: 9