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. IUyI/NbMYBHI0QE/DKGyWnvKS9CnKS3c+qPff/ebTCpW8J6V61zlW5GzRl1kpVfO