Notoedric mange, a disease caused by mites, becomes epidemic in western gray squirrel populations and is a major source of mortality. Other species of eastern gray squirrels, fox squirrels, California ground squirrels and wild turkeys are expanding and compete with the western gray.
Principles of Design. Unity/Harmony. Definition of Unity: occurs when all of the elements of a piece combine to make a balanced, harmonious, complete whole. Unity is another of those hard-to-describe art terms but, when it's present, your eye and brain are pleased to see it. Definition of Harmony: brings together a composition with similar units.
What is Form in Terms of Art? In terms of art, form refers to objects that are 3-Dimensional, or have length, width, and height. The world we live in made up almost entirely of forms. As artists, we must have a strong understanding of form and how to create the illusion of form in drawings and paintings.