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nonnative: a plant or animal from another part of the world that is brought to a new area<br />
by people<br />
pollution: anything put into the environment by man that harms the environment<br />
ACTIVITY: How many Beavers can live on Buffalo Bayou?<br />
(Adapted from “How Many Bears Can Live in This Forest?” ProjectWILD, CEE)<br />
Objective<br />
Students will 1) define a limiting factor and 2) describe how limiting factors affect animal<br />
populations<br />
Method<br />
Students will become “beavers” to look for one or more components of habitat during this<br />
physically involved activity.<br />
Materials<br />
Five colors of construction paper (yellow, green, orange, blue and light blue); one black felt<br />
pen; envelopes (one per student); pencils; one blindfold<br />
Background<br />
Beavers are the focus of this activity that illustrates the importance of suitable habitat for<br />
wildlife. The activity demonstrates the consequences for a population if one or more habitat<br />
components is scarce. Limiting Factors: When an element of a habitat is insufficient for the<br />
needs of an animal or population, it directly affects the well-being of the animal(s) and may<br />
result in death or population reduction. Thus, these factors “limit” the animals’ population<br />
size.
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