To the people whose labors go beyond ideas into the realm of “real materials”—to the dry-land ecologists, wherever they may be, in whatever time they work, this effort at prediction is dedicated in humility and admiration. C0nXaOVh/4uhI5yZVjF5e1OOXe9jCxyoFK7q0h2ok4FgHtTrRmIc1oZN6cg2AOJ6