Grades K–2 · Organisms
How can a fallen tree become a busy neighborhood?
A fallen tree may look quiet, but its cracks can shelter a busy neighborhood. The wood blocks some sunlight and wind. Under it, the ground often stays damper than the open forest floor. Small animals that lose water easily can find a better place to hide.
Fungi grow through the dead wood and help break it down. Tiny animals find food in and around it. A bird may visit to catch those animals. Moss can hold water on the log, and a seed that lands there may begin to grow. The log can give the seedling a raised spot above crowded plants.
The cutaway shows damp shelter below the log and a seedling growing above it.
As the old wood slowly softens, the new tree's roots may reach the soil below. One tree's life has ended, but its body can still provide shelter, food and a place for other lives to begin.
About this explanation
Different forest logs shelter different animals; the drawing shows a few possible neighbors.
Starting knowledge: Recognize plants, animals and places where they live.
Sources
- National Park Service — Nurse Log in Bartlett Cove