Some 170 species of columnar cacti are found in many parts of the Americas. These giant plants are so dominant in some ecosystems that many species of animals rely on them for food and shelter. They are pollinated by bats in central Mexico and Venezuela, by birds and bees in northern Mexico and Peru. This book summarizes our current knowledge about the very survival of these cacti, dependent on animals who pollinate them and disperse their seeds. Ranging from the Sonoran Desert to the northern Andes, these studies outlined in this book reflect recent progress in understanding how abiotic and biotic factors interact to influence the evolution, distribution, and abundance of cacti and mutualists alike. No other book treats the pollination ecology of cacti in such depths or offers such wealth of up-to-date material on the nectar-feeding bats of the new world as Columnar Cacti and their Mutualists does. 'One of the most significant works ever published on the two topics of columnar cacti and nectar-feeding bats'. 19 b/w photos, 52 line illustrations, 20 maps. 371 pages, 6-1/4” x 9-1/4”, hardbound w/color dustjacket. (Normal retail price is: $65.00). Our price only ………(#15800)……$59.95