I found another tree eating a sign while hiking the Ouachita National Forest here in Arkansas. I posted a photo back in December of a tree eating a warning sign (Tree Eating Sign In The Ouachita National Forest). Apparently the trees in this forest don’t like signs.
The tree back in December does look like a mouth, but today’s tree looks like a nose overlapping the sign. If you look closely at the above photo you can see that this sign looks to be covered by a type of tree fungus.
I would like to come back to these signs in a few years to see how much of the signs will be left.
Trees do not usually grow continuously throughout the year but mostly have spurts of active expansion followed by periods of rest. This pattern of growth is related to climatic conditions; growth normally ceases when conditions are either too cold or too dry.
Primary growth is the elongation of the stems and roots. Secondary growth consists of a progressive thickening and strengthening of the tissues as the outer layer of the epidermis is converted into bark and the cambium layer creates new phloem and xylem cells. The bark is inelastic. Eventually the growth of a tree slows down and stops and it gets no taller. If damage occurs the tree may in time become hollow.
The main purpose of the trunk is to raise the leaves above the ground, enabling the tree to reach the light and survive: the tree can overtop other plants and shade them out. It also performs the task of transporting water and nutrients from the roots to the aerial parts of the tree and to distribute the food produced by the leaves to all other parts including the roots.
The outermost layer of the trunk is the bark and is mostly composed of dead cells. It provides a thick, waterproof covering to the living inner tissue. It protects the trunk against the elements, disease, animal attack and fire. It is perforated by a large number of fine breathing pores called lenticels, through which oxygen diffuses. Bark is continually replaced by a living layer of cells called the cork cambium.
Trees provide shade and shelter, timber for construction, fuel for cooking and heating, and fruit for food as well as having many other uses. In parts of the world, forests are shrinking as trees are cleared to increase the amount of land available for agriculture. Because of their longevity and usefulness, trees have always been revered, with sacred groves in various cultures, and they play a role in many of the world’s mythologies. (Wikipedia)