Group foraging revisited: information sharing or producer-scrounger game?

Article Abstract:

Producer-scrounger (PS) game models offer a more useful paradigm for the study of group foraging. A PS game model of participating in decisions in groups of varying sizes is used to show that restraint in joining behavior results in a higher mean intake rate, but affects variance. Adaptive changes in the joining behavior of group foragers should thus be made to resolve the trade-off between mean and variance of intake rate. Such a feature is not taken into account in information sharing models of group foraging.

Research, Models, Animal behavior, Forage plants, Forage

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Interview with Sir Percy Cradock

Article Abstract:

Sir Percy Cradock, main negotiator in dealing with China on the Hong Kong reunification issue, has provided intricate details of the political, economic and social transformations likely to accompany Hong Kong's accession to China on Jun 30, 1997. Among other things, he predicts China's course of action regarding adherence to the Joint Declaration in governing post-1997 Hong Kong.

Interview, Cradock, Percy

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Bombardier's big gamble: a new business jet is designed to conquer the sky

Article Abstract:

The Global Express marks Bombardier Inc.'s official challenge to Gulfstream and Dassault in the lucrative long-range luxury jet market. The new plane has a 6,500-mile range, and may quickly capture half the market. Bombardier's conversion from snowmobiles to aerospace is also analyzed.

Aircraft, Aircraft Manufacturing, Jet Aircraft, General, Product introduction, Aircraft industry, Bombardier Inc., PINK, Company Profile, Jet aircraft, Jet transports

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