Indicators of Woodland Health

Indicators of Woodland Health


Last week, Natural Resources Manager Kevin Fryberger had the opportunity to visit a property in Elverson subject to a Conservancy-held conservation easement. 

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Photo of a Hooded Warbler by Holly Merker
Photo of a Hooded Warbler by Holly Merker
The property had recently been logged and Kevin visited to assess the effects of the timber cut on the property's vegetation and bird populations.  While he found a lot of damage to the woodland from the logging operation, Kevin reported a nice variety of both plant and bird species present.  Pink lady's slipper, maidenhair fern, cinnamon fern and showy orchis were all present, as were a number of oak and hickory seedlings.  A diversity of bird species were also present and 42 species were tallied on the visit.

Using indicator species is a very reliable way to determine the health of an environmental system.  While he didn't find the Kentucky Warbler he was hoping for, Kevin did find quite a few Hooded Warblers.  Both of these species of birds rely exclusively on healthy woodland understory habitat.  Finding either or both of these species is a reliable indicator of a healthy woodland.