Invasive Species at Huyck Preserve

  • A healthy Eastern hemlock forest. Pencil on drafting film, colored digitally. 2014
  • The devastating effect of the invasive hemlock woolly adelgid on a stand of Eastern hemlocks. Pencil on drafting film, colored digitally. 2014
  • Yearly cycle of Eastern hemlock tree with invasive insect, hemlock woolly adelgid. Pencil on drafting film, colored digitally. 2014
  • Seasonal changes of the invasive Oriental bittersweet vine. Detail of flowers (male vs. female) and Blue Jay eating berries in winter. Pencil on drafting film, colored digitally. 2014
  • Oriental bittersweet vines, climbing and smothering a tree. Pencil on drafting film, colored digitally. 2014
  • The effects of an earthworm invasion on a Northern hardwood forest. Before (left) and after (right). Pencil on drafting film, colored digitally. 2014
  • Identification and comparison of two species of invasive earthworms. Pencil on drafting film, colored digitally. 2014
  • Soil cross-section in a Northern hardwood forest. A variety of invertebrates, amphibians, and a thick layer of leaf litter indicate a healthy ecosystem. Pencil on drafting film, colored digitally. 2014