Membrane canopy in the understory, Talladega National Forest

Summer 2026 · Capstone

Ghost Canopy

Term
Summer 2026 · 6 credit hours
Recognition
Submission in progress, Memorial to the Sixth Extinction open international ideas competition
Type
Capstone
Site
Talladega National Forest, Alabama
Scale
Large
Method
Systems Based Thinking, Operative Abstraction

The Appalachians represent one of the most biodiverse regions on the planet. Among the species it used to host was Castanea dentata, the American chestnut, which served as a vital resource for the habitat, where a single tree would support thousands of insects, provide nutrients to birds, small mammals, and reptiles, and act as a canvas for endemic moss and lichen, which helped cool the air.

In the early 1900s, a blight brought from Asia ravaged 94% of their population, permanently affecting Appalachian biodiversity. Talladega National Forest, at the southern tip of the Appalachians, is one of the places affected by this blight. Even though it is lush and green, the sylvan scars remain, and so do the lessons they teach us.

The Ghost Canopy is a changing structure woven through the forest that makes visible what has disappeared while creating niche habitats for wildlife. People move off the forest trails, walking under a unique canopy of varying transparencies and forms.

Above: Membrane canopy in the understory, Talladega National Forest

The range

The chestnut range once ran the length of the Appalachians. Talladega National Forest sits at its southern tip, which is where the project lands. The collage reads the range as a data field rather than a map, layering terrain, bark, and lichen at the same scale so the loss registers as territory rather than as a statistic.

The Appalachians: chestnut range, Appalachian extent, and Talladega National Forest
07The Appalachians: chestnut range, Appalachian extent, and Talladega National Forest
Sylvan scar: canker and healed tissue read as surface
07Sylvan scar: canker and healed tissue read as surface

Cryphonectria parasitica

Chestnut blight kills from a wound inward. The section series follows one tree across three years, from intact cambium through infection, canker expansion, and girdling, to the point where dead tissue breaks down and the fungus moves to the next wound. Drawing the sequence rather than the endpoint is what makes the loss legible as a process.

Three-year progression: unaffected wood, dispersal, infection, colonization, canker expansion, host decline, decay and spread
07Three-year progression: unaffected wood, dispersal, infection, colonization, canker expansion, host decline, decay and spread

Design language from the survivors

The canopy repurposes design language from endemic fungi species: Trametes versicolor, Cantharellus appalachiensis, Auricularia auricula-judae, Hypholoma fasciculare, Flavoparmelia baltimorensis, and the lichen Japewiella dollypartoniana. They all exist on the fringes of the forest, sprouting from dead trees, scattered among the forest floor, draping themselves across the biome in silent composure. On closer inspection they show sweeping forms, organic repetition, and a controlled chaos only found in nature. The project observes these forms and deconstructs how they integrate ecologically.

Field catalogue: six endemic species, habit and substrate
07Field catalogue: six endemic species, habit and substrate
Relief model: fungal geometry cut against the forest contour
07Relief model: fungal geometry cut against the forest contour

Sylvan thresholds

The section holds three canopy heights at once: the upper canopy at 60 feet, the lower canopy at 16 feet, and the ghost canopy at 9 feet. Contact with the ground is minimized to a set of nodes, so the structure bridges between ecosystem layers instead of occupying the forest floor. The membrane is translucent, which keeps light reaching what grows below it.

Seasonal section: summer, fall, and winter read across one span
07Seasonal section: summer, fall, and winter read across one span

Walking under

Visitors leave the forest trail for a semi-elevated mesh path. The membrane is bio-fabricated from mycelium and recycled material, tensioned on stainless cable, and perforated with thousands of small openings that react to temperature, humidity, and carbon emissions. It collects pollen, catches moisture, traps organic matter, breaks down slowly, and returns to the forest.

Membrane canopy, tension cable, and mesh path set into the understory
07Membrane canopy, tension cable, and mesh path set into the understory
The canopy read from the path, with lichen and Trametes versicolor annotated in situ
07The canopy read from the path, with lichen and Trametes versicolor annotated in situ
Parallel bio-fabrication: the path as scaffold, tensioned rather than imposed
07Parallel bio-fabrication: the path as scaffold, tensioned rather than imposed

The board

The full capstone board, titled COLONIZ[ing]. Built in D5 Render, Adobe Photoshop, Illustrator, and After Effects.

COLONIZ[ing]: full presentation board
07COLONIZ[ing]: full presentation board