Planning professor Irene Tinker is author of "Street Foods: Urban Food and Employment in Developing Countries" from Oxford University Press. The culmination of 15 years of research in provincial cities in the Philippines, Thailand, Indonesia, Bangladesh, Egypt, Nigeria and Senegal, "Street Foods" provides the first empirical study of who makes, sells and eats food on the streets.

Dale R. McCullough, professor of wildlife biology in the Department of Environmental Science, Policy and Management, is editor of the recently published "Metapopu-lations and Wildlife Conservation," a 429-page book based on the proceedings of a 1994 symposium sponsored by the Wildlife Society.

Conservation biologists have adopted metapopulation theory as a means to understand the dynamics of wildlife populations, including the effect of human activities in fragmenting natural habitats and the relationship between the spatial structure of habitat and the survival or extinction of species.

McCullough's book, reviewed in the July 25 issue of Science, includes three chapters on theory, followed by case studies of species whose habitats have declined due to human activities-including the spotted owl, Stephens' kangaroo rats, Florida scrub jays, monk seals, Steller's sea lions, cougars, grizzly bears, mountain sheep and tule elk.

The book is published by Island Press in Washington, D.C., and is available in hardcover and paperback.

Ignacio Chapela, assistant professor of science and environmental policy and management, is editor of "Mycology in Sustainable Development: Expanding Concepts, Vanishing Borders," the proceedings of a symposium at the American Institute of Biological Sciences especially devoted to this topic.

"Harvesting of wild mushrooms for food and export," says Scott Redhead, contributing author and curator of Canada's National Mycological Herbarium, "falls in between what is normally considered to be a forestry concern" and "what is considered to be an agricultural or food production concern and therefore has been understudied and underappre-ciated."

In the new book from Parkway Publishers of Boone, N.C., American, Canadian and Mexican mycologists (who study fungi such as mushrooms, molds and decays) address broad issues concerning the wild mushroom industry, whose role in sustainable development efforts has not to date been studied in great detail.

Chapela is scientific director of the Mycological Facility in Oaxaca, Mexico.

"Annually harvesting of edible mushrooms from stands of trees," he writes, "may generate more income than a one-time harvest of those trees."



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