Describes new techniques and approaches to ecology, including the systems approach, behavioral studies, the use of of radioistopes to investigate ecological cycles and energetics, and evolutionary ecology, all leading to a more sophisticated understanding of complex natural systems. (EB)

Diversity and total numbers of plankton, particularly diatoms, were analyzed and correlated with physical factors of water. Diversity index values appear to provide an indication of pollution of water by industrial and domestic wastes. (AL)

Discusses the concept of integrated pest control combining chemical and biological methods. Describes many examples of the successful use of coccinellids beetles to control other insects. Cites ecological and physiological research studies related to predator prey relationships involving coccinellids. (EB)

Compares the problems associated with long-duration manned space missions with environmental problems on Earth. Argues that bioastrononautical research can contribute much in the areas of pollution control, nutrition, microbiology, and group psychology. (EB)

Describes scope, methods, and history of evolutionary biology. Illustrates the application of new mathematical treatments to problems of speciation, homology and ecology. Urges biologists to become familiar with these methods and to adopt a mathematical approach in teaching, arguing that much ecology taught today is irrelevant to theories now…

Describes the history of comparative methods and their use in biology as an investigative philosophy. Discusses Bernard's and Krogh's ideas and supports Jorgensen's arguments. Explains conceptual change in the comparative studies which is referred to as "comparative phylogenetic method". (Contains 33 references.) (YDS)

Reviews methods of study, chemical composition, physical properties and ecology of surface microlayers in marine and fresh water habitats. Relates to problems of air and water pollution. Suggests areas for further research. (EB)

Discusses major leaps in knowledge about the production of flowers that have come from studying genes that regulate the flowers of mouse ear cress (Arabidopsis thaliana). Examines the ABC model of flower morphogenesis, commonality of genes, evolution of angiosperms, and agricultural and horticultural potential. (LZ)

Examines the history of the transformation of animal regeneration research from observations to hypothesis-based concepts as a classic example of a view of science as a human endeavor, where social context influences the nature of the science undertaken and the science in turn alters the social context. (LZ)

Describes two laboratory exercises adopted from current research papers for use in an undergraduate developmental biology course. Gives methods, summary of student results, and student comments. Lists lecture topics, text and reprint assignments, and laboratory exercises for course. (EB)

Investigates significance tests as a tool for helping to identify real effects in the face of random variation. Speculates that equivalence tests improve the logic of significance testing when demonstrating similarity is important. Reverse tests can help show that failure to reject a null hypothesis does not support that hypothesis. (Contains 30…

Highlights the significance of what happens when scientists cite and paraphrase the conclusions of past research. Discusses the implications of changing the hedges that describe the uncertainty of the conclusions, which in turn can change the uncertainty of past results. (Contains 42 references.) (DDR)