Biotic communities of hanging gardens in southeastern Utah
National Geographic Society Research Reports
The paper is concerned with the peculiar assemblages of biota which occur in wet habitats that occupy alcoves and grottos along sandstone cliffs in the mid-Colorado River region. The particular examples described are those of Glen Canyon near its confluence with the San Juan Arm, and some were studied shortly before they were drowned by the water rising behind Glen Canyon Dam. The vegetation of hanging gardens simulates the broad-leaved forests of the eastern United States, and could be important in showing symptoms of damage from pollution before the native vegetation of adjacent xeric communities would. Brief bibliography
Welsh, S. L. and C. A. Toft. 1981. Biotic communities of hanging gardens in southeastern Utah. National Geographic Society Research Reports 13:663-681.