front cover of Elephant Trees, Copales, and Cuajiotes
Elephant Trees, Copales, and Cuajiotes
A Natural History of Bursera
Judith Becerra and David Yetman; Foreword by Exequiel Ezcurra
University of Arizona Press, 2024
Predominantly native to the U.S. Southwest, Mexico, and the Caribbean, the various species of Bursera have been prized throughout history for their distinctive aromas, medicinal properties, workable wood, and attractive appearance. Despite its extensive past and current use as incense in religious ceremonies, and its resourceful antiseptic ability to treat a range of maladies, no comprehensive book exists on this vital yet overlooked plant. Highlighting bursera’s importance and impact within the desert Southwest and Mexico, this volume will be the first book to describe the ecology, evolution, ethnobotany, and peculiar chemistry of the many species of Bursera.

In the United States, Bursera is represented by the short, contorted, and aromatic elephant tree of the hot Sonoran Desert and the stately and colorful gumbo limbo of southern Florida, while in the torrid lowlands of southern Mexico, the engines of evolution have produced forests dominated by dozens of species of Bursera, each with a peculiar ecological slot. This evolutionary tableau presents a complicated sex life that puzzles scientists. Recent research also reveals a gripping narrative of an epic struggle between trees and the insects that would subsist on their leaves: the insects seeking to exploit a food resource, the trees reacting with ever-changing, dramatic counter strategies. In addition to the fascinating and intricate workings of the genus’s ecological adaptations, burseras play a formative role in the lives of indigenous populations. Native peoples relish the plants’ aromatic resin, workable wood, and often colorful bark as a source for endless human applications.

Written in an engaging style, enhanced with two hundred color photographs, and complete with a compendium of species descriptions, this book will be an essential reference on a significant North American plant.
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front cover of Gentry's Rio Mayo Plants
Gentry's Rio Mayo Plants
The Tropical Deciduous Forest and Environs of Northwest Mexico
Revised and Edited by Paul S. Martin, David Yetman, Mark Fishbein, Phil Jenkins, Thomas R. Van Devender, and Rebecca K. Wilson
University of Arizona Press, 1998
The Río Mayo region of northwestern Mexico is a major geographic area whose natural history remains poorly known to outsiders. Lying in a region where desert and tropical, northern and southern, and continental and coastal species converge, it boasts an abundance of flora first documented by Howard Scott Gentry in 1942 in a book now widely regarded as a classic of botanical literature. This new book updates and amends Gentry's Río Mayo Plants. Undertaken with Gentry's support and participation before his death in 1993, it reproduces the original text, which appears here with annotations, and contains information on over 2,800 taxa—more than twice the 1,200 species first described by Gentry. The annotated list of plants includes information on distribution, habitat, appearance, common names, and indigenous uses. A new introduction provides historical background and a review of geography and vegetation. It also describes changes to the land and river wrought by agricultural development, expanded grazing, and lumbering. Throughout the text, the authors have endeavored to provide information on Río Mayo vegetation while emphasizing local knowledge and use of plants, to preserve Gentry's field-oriented focus, and to present botanical information with Gentry's exuberance and style. Río Mayo Plants has long stood as a book that displays a scientist's love of the English language, his fondness for native peoples, and his eye for beauty in nature. This updating of that work fills a gap in the botanical literature of this portion of North America and will be useful not only for botanists but also for biogeographers, taxonomists, land managers, and conservationists.
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front cover of The Great Cacti
The Great Cacti
Ethnobotany and Biogeography
David Yetman
University of Arizona Press, 2007
Towering over deserts, arid scrublands, and dry tropical forests, giant cacti grow throughout the Americas, from the United States to Argentina—often in rough terrain and on barren, parched soils, places inhospitable to people. But as David Yetman shows, many of these tall plants have contributed significantly to human survival.

Yetman has been fascinated by columnar cacti for most of his life and now brings years of study and reflection to a wide-ranging and handsomely illustrated book. Drawing on his close association with the Guarijíos, Mayos, and Seris of Mexico—peoples for whom such cacti have been indispensable to survival—he offers surprising evidence of the importance of these plants in human cultures. The Great Cacti reviews the more than one hundred species of columnar cacti, with detailed discussions of some 75 that have been the most beneficial to humans or are most spectacular. Focusing particularly on northwestern Mexico and the southwestern United States, Yetman examines the role of each species in human society, describing how cacti have provided food, shelter, medicine, even religiously significant hallucinogens.

Taking readers to the exotic sites where these cacti are found—from sea-level deserts to frigid Andean heights—Yetman shows that the great cacti have facilitated the development of native culture in hostile environments, yielding their products with no tending necessary. Enhanced by over 300 superb color photos, The Great Cacti is both a personal and scientific overview of sahuesos, soberbios, and other towering flora that flourish where few other plants grow—and that foster human life in otherwise impossible places.
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front cover of Mexico’s Valleys of Cuicatlán and Tehuacán
Mexico’s Valleys of Cuicatlán and Tehuacán
From Deserts to Clouds
David Yetman and Alberto Búrquez
University of Arizona Press, 2023
Mexico’s Valleys of Cuicatlán and Tehuacán: From Deserts to Clouds provides an accessible and photographic view of the culture, history, and environment of an extraordinary region of southern Mexico. The Valleys of Cuicatlán and Tehuacán are lauded by botanists for their spectacular plant life—they contain the densest columnar cacti forests in the world. Recent archaeological excavations reveal them also to be a formative Mesoamerican site as well. So singular is this region that it is home to the Tehuacán-Cuicatlán Biosphere Reserve and a UNESCO World Heritage Site.

Through firsthand experience and engaging prose, the authors provide a synthesis of the geology, ecology, history, and cultures of the valleys, showing their importance and influence as Mesoamerican arteries for environmental and cultural interchange through Mexico. It also reveals the extraordinary plant life that draws from habitats ranging from deserts to tropical forests.

The authors, both experts in their respective fields, begin with a general description of the geography of the valleys, followed by an introduction to climate and hydrology, a look at the valleys’ often bewildering geology. The book delves into cultural and linguistic backgrounds of the valleys and discusses archaeological sites that that encapsulate the valleys’ fascinating history prior to the arrival of Europeans. The book concludes by describing the flora that makes the region so singular.
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front cover of Natural Landmarks of Arizona
Natural Landmarks of Arizona
David Yetman
University of Arizona Press, 2021
Natural Landmarks of Arizona celebrates the vast geological past of Arizona’s natural monuments through the eyes of a celebrated storyteller who has called Arizona home for most of his life. David Yetman shows us how Arizona’s most iconic landmarks were formed millions of years ago and sheds light on the more recent histories of these landmarks as well. These peaks and ranges offer striking intrusions into the Arizona horizon, giving our southwestern state some of the most memorable views, hikes, climbs, and bike rides anywhere in the world. They orient us, they locate us, and they are steadfast through generations.

Whether you have climbed these peaks many times, enjoy seeing them from your car window, or simply want to learn more about southwestern geology and history, reading Natural Landmarks of Arizona is a fascinating way to learn about the ancient and recent history of beloved places such as Cathedral Rock, Granite Dells, Kitt Peak, and many others. With Yetman as your guide, you can tuck this book into your glove box and hit the road with profound new knowledge about the towering natural monuments that define our beautiful Arizona landscapes.

 
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front cover of The Ópatas
The Ópatas
In Search of a Sonoran People
David A. Yetman
University of Arizona Press, 2010
In 1600 they were the largest, most technologically advanced indigenous group in northwest Mexico, but today, though their descendants presumably live on in Sonora, almost no one claims descent from the Ópatas. The Ópatas seem to have “disappeared” as an ethnic group, their languages forgotten except for the names of the towns, plants, and geography of the Opatería, where they lived. Why did the Ópatas disappear from the historical record while their neighbors survived?

David Yetman, a leading ethnobotanist who has traveled extensively in Sonora, consulted more than two hundred archival sources to answer this question. The result is an accessible ethnohistory of the Ópatas, one that embraces historical complexity with an eye toward Opatan strategies of resistance and assimilation. Yetman’s account takes us through the Opatans’ initial encounters with the conquistadors, their resettlement in Jesuit missions, clashes with Apaches, their recruitment as miners, and several failed rebellions, and ultimately arrives at an explanation for their “disappearance.”

Yetman’s account is bolstered by conversations with present-day residents of the Opatería and includes a valuable appendix on the languages of the Opatería by linguistic anthropologist David Shaul. One of the few studies devoted exclusively to this indigenous group, The Ópatas: In Search of a Sonoran People marks a significant contribution to the literature on the history of the greater Southwest.
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front cover of The Organ Pipe Cactus
The Organ Pipe Cactus
David Yetman
University of Arizona Press, 2006
Distinguished by its slender vertical branches, which resemble the tubes of a pipe organ, and growing to the imposing height of 15 to more than 30 feet, it’s obvious how the organ pipe cactus got its name. In the United States, these spectacular and intriguing plants are found exclusively in a small area of the Sonoran Desert in the southwestern corner of Arizona. With a landscape marked by sharp, rocky slopes and daytime highs in the summer reaching 110 degrees Fahrenheit, the region is inhospitable for most ordinary life, whether plant or animal. But the organ pipe cactus is far from ordinary. Although it is the most common columnar cactus, it is so unusual in the United States that it is only one of three cacti to have a national preserve established to protect it. In this regard, it joins a select group of plants—including Joshua trees, redwoods, and sequoias—upon which that honor has been conferred. In this beautifully illustrated, large-format book, David Yetman provides an in-depth and comprehensive look at these intriguing and picturesque plants that most Americans will never have the opportunity to see. Chapters explore their ethnobotanical uses, their habitat, their distribution, and special conditions required for their germination, establishment, growth, and survival. Yetman also places the organ pipe in perspective as a member of a genus with at least twenty-three species, ranging from the prostrate Stenocereus eruca of Baja California to the 50-foot high giant S. chacalapensis of the coast of Oaxaca.
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front cover of The Saguaro Cactus
The Saguaro Cactus
A Natural History
David Yetman, Alberto Búrquez, Kevin Hultine, and Michael Sanderson, with Frank S. Crosswhite
University of Arizona Press, 2020
The saguaro, with its great size and characteristic shape—its arms stretching heavenward, its silhouette often resembling a human—has become the emblem of the Sonoran Desert of southwestern Arizona and northwestern Mexico. The largest and tallest cactus in the United States, it is both familiar and an object of fascination and curiosity.

This book offers a complete natural history of this enduring and iconic desert plant. Gathering everything from the saguaro’s role in Sonoran Desert ecology to its adaptations to the desert climate and its sacred place in Indigenous culture, this book shares precolonial through current scientific findings.

The saguaro is charismatic and readily accessible but also decidedly different from other desert flora. The essays in this book bear witness to our ongoing fascination with the great cactus and the plant’s unusual characteristics, covering the saguaro’s: history of discovery, place in the cactus family, ecology, anatomy and physiology, genetics, and ethnobotany. The Saguaro Cactus offers testimony to the cactus’s prominence as a symbol, the perceptions it inspires, its role in human society, and its importance in desert ecology.
 
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front cover of The Tropical Deciduous Forest of Alamos
The Tropical Deciduous Forest of Alamos
Biodiversity of a Threatened Ecosystem in Mexico
Edited by Robert H. Robichaux and David A. Yetman
University of Arizona Press, 2000

Only a day's drive south of the U.S.-Mexico border, a tropical deciduous forest opens up a world of exotic trees and birds that most people associate with tropical forests of more southerly latitudes. Like many such forests around the world, this diverse ecosystem is highly threatened, especially by large-scale agricultural interests that are razing it in order to plant grass for cattle.

This book introduces the tropical deciduous forest of the Alamos region of Sonora, describing its biodiversity and the current threats to its existence. The book's contributors present the most up-to-date scientific knowledge of this threatened ecosystem. They review the natural history and ecology of its flora and fauna and explore how native peoples use the forest's many resources.

Included in the book's coverage is a comprehensive plant list for the Río Cuchujaqui area that well illustrates the diversity of the forest. Other contributions examine tree species used by Mayo Indians and the numerous varieties of domesticated plants that have been developed over the centuries by the Mayos and other indigenous peoples. Also examined are the diversity and distribution of reptiles, amphibians, mammals, and birds in the region.

The Tropical Deciduous Forest of Alamos provides critical information about a globally important biome. It complements other studies of similar forests and allows a better understanding of a diverse but vanishing ecosystem.

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