Stresses on pollinators during migration : is nectar availability at stopovers the weak link in plant-pollinator conservation? / Gary Paul Nabhan -- Nectar corridors : migration and the annual cycle of lesser long-nosed bats / Theodore H. Fleming -- Conservation through research and education : an example of collaborative integral actions for migratory bats / Rodrigo A. Medellín, J. Guillermo Téllez and Joaquín Arroyo -- Rufous and broad-tailed hummingbirds : pollination, migration, and population biology / William A. Calder -- Migratory patterns of the rufous hummingbird in western Mexico / Jorge E. Schondube ... [et al.] -- Hummingbird plants and potential nectar corridors of the rufous hummingbird in Sonora, Mexico / Thomas R. Van Devender ... [et al.] -- Saguaros and white-winged doves : the natural history of an uneasy partnership / Carlos Martínez Del Rio, Blair O. Wolf and Russell A. Haughey -- The interchange of migratory monarchs between Mexico and the western United States, and the importance of floral corridors to the fall and spring migrations / Lincoln P. Brower and Robert M. Pyle -- The monarch butterfly biosphere reserve, Michoacán, Mexico / Roberto Solís Calderón, in collaboration with Blanca Xiomara Mora Alvarez ... [et al.].