Editor’s Note: Nalini Nadkarni is a professor, a pioneer in tree canopy research and co-founder of the Sustainability in Prisons Project. Watch a 30-minute profile of her on CNN's "The Next List," Sunday at 2 p.m. ET.
By Nalini Nadkarni, Special to CNN
“Trees are the earth’s endless efforts to speak to the listening sky.”
- Rabindranath Tagore, Indian poet
Hanging by a rope no thicker than my pinkie finger in a giant spruce tree 150 feet above the ground, I survey the view of the temperate rainforest of the Olympic Peninsula below me. Although perching in this treetop may seem more like a dream for a combination rock-climber and wilderness adventurer, the forest canopy has been my arena for a lifetime of scientific research.
The forest canopy – the part of the forest high above the forest floor – has been an area of burgeoning scientific interest for the last three decades. I was among the first forest canopy pioneers who thought that climbing vertically to explore the treetops would yield scientific paydirt. The thrill of the climb drew us to develop methods of canopy access - modified mountain-climbing techniques, construction cranes, hot-air balloons.
Those early experiences were exploratory forays into an unknown scientific world, termed “the last biotic frontier." We observed new interactions. Arboreal mice pollinate flowers in the nocturnal canopy. Roots grow from the branches of trees to draw nutrients from canopy-held soils. Canopy-dwelling mosses sieve nutrients from rain that passes through canopies. Once, when I spent the night in a Costa Rican forest canopy, a nocturnal anteater walked right by my suspended cot, searching out columns of arboreal leaf-cutting ants. The ants carried leaf bits they had harvested to their subterranean nests, connecting treetops to root tips. FULL POST
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