When
we think of termites, we think of subversive nests and the damage they can do
to our homes. In Costa Rica, I encountered a dissimilar kind of
termite. Arboreal termites build large, dark colored nests on tree trunks
or huge branches. They are also sometimes found straight on top of the
ground.
Arboreal
termite nests are made from a mixture of digested wood and termite feces.
The mixture hardens into a strong, suspicious material. The termites use
this same material to construct tunnels down the side of their home tree, over
the ground, and to rotting trees which they use for food. These tubes serve
up the same defensive reason as the mud tubes we are used to seeing with
subterranean termites. Nests can be the size of a basketball or still
larger, and colonies can enclose 55,000 or additional termites. Arboreal
termites are common in the hot, lowland habitats of Central and South America
such as rainforests, mangroves, and savannas.
The
colony contains soldiers, workers, and one ruler. The soldiers can exude
a sticky chemical from their jaws that is extremely exasperating to the skin within
the nose and mouth of predators such as anteaters. The pictures beneath are of
a nest that was right on top of the ground. If you look intimately at the
picture on the right, you can see some termites on the shell.
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