This Proceedings contains the abstracts in English and Spanish of papers presented at the 4th conference on the Madrean Archipeligo held May 14-18, 2018, in Tucson, Arizona. it also contains several full-length papers that expand on the abstracts. The report presents updates on research presently going on in the Madrean Archipeligo region of Arizona, New Mexico, Sonora, and Chihuahua. The region is known as the “Sky Islands” of southern Arizona and New Mexico and the Sierra Madre Occidental of Sonora and Chihuahua. in between the mountain ranges are the grasslands and desert lands that form the “seas” that isolate the flora and fauna of the highlands. The wide range of ecosystems from the intermountain deserts and grasslands contribute to the high biodiversity of the region. Contributions to the Proceedings came from researchers in the USA, Mexico, and Portugal. Topics include climate, Madrean history, mammals, invertebrates, aquatic fauna, plants, hydrology, soils, riparian areas, herpetofauna, biodiversity, grasslands, fire, mining, monitoring, and other topics.
Neary, D. G.; Gottfried, G. J., eds. 2022. Collaboration Now for the Future: IV Conference on the Biodiversity and Management of the Madrean Archipelago. Proceedings RMRS-P-79. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 495 p. https://doi.org/10.2737/RMRS-P-79.