Describes an activity (suitable for high school or college) in which the effects of competition in the structuring of ecological communities are examined. The exercise also offers an introduction into species diversity; more advanced classes may be encouraged to seek reasons for differences in insect diversity on different trees. (Author/JN)

Describes a computer program simulating seasonal population growth and decline in a honeybee colony as an ecological teaching aid. Program listing for Pet microcomputers (in BASIC) is included. (JN)

Based upon British studies, suggests how the coexistence of different ant species can occur, and discusses competition and niche-separation in relation to a study made in Norfolk. Recommends the elucidation of the mechanisms of niche-separation in ants as an ideal student project. (JR)

Provided is a brief description of the biology and taxonomy of British ants. Suggested are a range of exercises which could be used for class or project work in secondary biology classes. Illustrates many ecological, behavioral and physiological points regarding the species of ants found in Great Britain. (Author/CW)