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®®i6i8" <br />?mi?soiaaii? <br />0Z <br />C) ? <br />Communities (1-1) <br />Species Groups (L2) <br />AMk <br />¦ <br />?f <br />• <br />Species (L3) <br />0 M <br />Populations (L4) <br />/// I \\\ Individuals (1-5) <br />0 0 0 0 0 0 0 <br />Figure 1. Hierarchical levels (LI-L5) of biological organization from communities down to indi- <br />viduals are presented. Each step down the hierarchy represents one unit at the level directly above <br />it (e.g., species groups from a community [Ll to L2] or individual species from a single species <br />group [L2 to L3]). Units (1-2) with similar shading represent species of related assemblages. Each <br />species group can be broken up into its component species (1-3). Each species is usually composed <br />of multiple populations (1-4), which are composed of multiple individuals (1-5). Other levels of <br />organization could be included in the figure. <br />244 ? Trans. 57 `h N. A. Wildl. & Nat. Res. Conf. (1992)