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 Academic Year 2002-2003

 Issues at Hendricks Park

Non-native, Invasive Plant Species
The forest under-story has been significantly impacted by invasive and ornamental species from nearby residential landscaping, and to some degree by seeds carried in on clothing and dog fur by park visitors.  Other invasive species, like sweet cherry, have been introduced by birds in their droppings, or by squirrels as food caches, and a few have blown in by wind.  Road-cuts and trails through the park provide conditions favoring the spread of introduced species.  Of the 198 native and naturalized vascular plant species inventoried in Hendricks Park, about 60% are native, and 40% have been introduced (i.e., escaped, naturalized, non-native species).  In this latter category, 20 species are considered ãinvasive.ä  

Invasives English Ivy (Hedera Helix) & Herb Robert (Geranium Robertianum)

Forest Inventory
In recent years a number of seemingly healthy Douglas-fir trees fell during wind storms. These incidents and other issues raised concerns about the health of the Hendricks Park forest.  In response, the city appointed an advisory committee and hired a consultant to develop the Hendricks Park Forest Management Plan. In 1999 the management plan established 24 permanent forest monitoring plots to provide baseline data about forest conditions. In order to track changes in forest conditions the 24 permanent plots need to be re-inventoried every few years.

Download Final Report

  Issues at Hendricks Park
  Project Objectives
  Project Task List

Project Development
  Educational Plant Guide
  Invasive Species Monitoring
       Treatment Study
       Encroachment Study
  Forest Inventory Update
     Plot Photo Database
     Data Analysis
  Misc. Project Photos
  Reference Sites

Presentations
Fall Term Presentation 
Winter Term Presentation
Final Presentation

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