Biomedical subjects
E O Wilson
Publications and source records attributed to E O Wilson.
Chemical communication and "propaganda" in slave-maker ants.
Slave-maker ants of the Formica sanguinea group direct their raids by means of odor trails. Artificial trails made from whole-body extracts and extracts of Dufour's glands and hindguts can be used to guide columns of workers to selected target colonies and to initiate raids. In workers of F. pergandei and F. subintegra, members of the F. sanguinea group, the Dufour's glands are hypertrophied and contain large quantities of three acetates (decyl, dodecyl, and tetradecyl), which are discharged at defending workers during the slave raids. The acetates produce very efficient, long-lasting alarm signals that attract the slave-makers but disperse the defenders; in effect, therefore, they are "propaganda substances."
A general method for estimating threshold concentrations of odorant molecules.
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A suggested revision of nomenclatural procedure in animal taxonomy.
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The analysis of olfactory communication among animals.
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[The Solenopsis saevissima complex in South America (Hymenoptera: Formicidae)].
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Epigenesis and the evolution of social systems.
The remaining problems of biology, which include the nature of the molecular regulation of development, the relation between micro- and macroevolution, the mind/body association, and the linkage between genetic and cultural evolution, all appear to be most readily soluble by attention to the epigenesis of individual organisms. Societies offer special advantages in the analysis of epigenesis. The constituent parts, consisting of the whole member organisms, can be observed more directly than cells and organelles. In the case of social insects, the components can be separated and reassembled as "pseudomutant" colonies, which can then be compared with the normal forms of the very same colonies studied on alternate days. Using this technique, for example, I have analyzed the optimization of some aspects of the division of labor in leaf-cutting ants and identified net energetic yield as the apparent aspect of foraging that has been maximized in the division of labor. A comparable approach can be applied in the study of human genetic and cultural evolution. The choices made by individuals during socialization, which in many categories of cognition and behavior display innate bias, can be translated with appropriate techniques into statistical descriptions of cultural diversity. Natural selection acting on behavior within particular cultures alters the frequencies of the genes underlying the developmental processes of cognition and behavior. The result is postulated to be a "co-evolutionary circuit" that links genetic and cultural evolution in an inseverable manner.
Vanishing before our eyes. Not since an asteroid smacked earth 65 million years ago have animal and plant species died out so fast. We have no idea what we're losing.
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