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)

The shore crab (Carcinus maenas) is an excellent subject for school study, both in the field and the laboratory. It is easily collected and maintained and can be used for a wide range of investigations. Some background details are given and possible areas of investigation suggested. (Author)

The use of mobiles to illustrate a number of basic principles in ecology teaching is rewarding, particularly with less able students, and an attractive end-product to decorate the biology laboratory. Suggestions for constructing the mobiles and a diagram of a sample mobile are provided. (Author/JN)

The principles of ecology are defined. Problems encountered in teaching ecology in schools are examined in order to establish reasons for the lack of good ecology teaching. Suggestions are made for overcoming these problems. Criteria for choosing suitable sites for ecology fieldwork are listed in an appendix. (Author/CS)

Discusses the current theories concerning the evolution of insect-plant relationships. Offers several experiments based on recent publications in this field, concerning relationships between herbivore number and plants' successional status, geographical range, geological history, and stage of growth, and also experiments on the chemical basis of…