Accessing the Canopy: Assessment of Biological Diversity and Microclimate of the Tropical Forest Canopy: Phase I Tropical forest canopies are thought to contain the greatest species diversity on earth, however, little is known about them. This report summarizes the studies of a tropical forest canopy facilitated by the use of a construction tower crane. This crane has been permanently installed in a tropical forest for the exclusive and long-term use of scientists. Studies include examinations of biodiversity, biotic interactions, energy exchange, microclimate and its effects on plant responses to variation in carbon dioxide and ultra-violet radiation. Book Ordering Information:    Sales Number: E. 95.III.D.66      ISBN: 92-1-127014-6       Pages: 88 pp.       Price: $12.50 [Environment Main] [Subject Index] [Alphabetical Index] [UN Publications Policies] Copyright © 1997 United Nations