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.
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.