front cover of Atlas of Coastal Ecosystems in the Western Gulf of California
Atlas of Coastal Ecosystems in the Western Gulf of California
Tracking Limestone Deposits on the Margin of a Young Sea
Edited by Markes E. Johnson and Jorge Ledesma-Vásquez
University of Arizona Press, 2009
The Gulf of California is one of the most beautiful places in the world, but it is also important to earth and marine scientists who work far beyond the area. In text and an accompanying CD-ROM with stunning satellite images, this atlas captures the dynamics of natural cycles in the fertility of the Gulf of California that have been in near-continuous operation for more than five million years. The book is designed to answer key questions that link the health of coastal ecosystems with the region’s evolutionary history: What was the richness of “fossil” ecosystems in the Gulf of California? How has it changed over time? Which ecosystems are most amenable to conservation?

With an emphasis on the intricate workings of the Gulf, a team of scientists led by Markes E. Johnson and Jorge Ledesma-Vázquez explores how marine invertebrates such as corals and bivalves, as well as certain algae, contribute to the operation of a vast “organic engine” that acts as a significant carbon trap. The Atlas reveals that the role of these organisms in the ecology of the Gulf was greatly underestimated in the past. The organisms that live in these environments (or provide the sediments for beaches and dunes) are mass producers of calcium carbonate. Until now, no book has considered the centrality of calcium carbonate production as it functions today across multiple ecosystems and how it has evolved over time.

An important work of scholarship that also evokes the region’s natural splendor, the Atlas will be of interest to a wide range of scientists, including geologists, paleontologists, marine biologists, ecologists, and conservation biologists.
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front cover of Discovering the Geology of Baja California
Discovering the Geology of Baja California
Six Hikes on the Southern Gulf Coast
Markes E. Johnson
University of Arizona Press, 2009
Baja California: wild, desolate, and a treasure-house of geological wonders. Along its ancient shorelines, careful observers can learn much about how the Gulf of California came into existence and what the future of the Baja California peninsula might be.

For those who wish to unlock the mysteries of Baja California, geologist Markes Johnson offers the key. He has taken a body of technical research on the geology and paleontology of the region and made it accessible in plain language for anyone who visits the peninsula, whether for study or recreation. His book teaches general concepts in coastal geomorphology and tectonics, as well as the basic geological and natural history of the Gulf of California, in a conversive, intellectually stimulating fashion.

Johnson's guide takes the form of six day-long hikes in the area of Punta Chivato on the east coast of the southern Baja California peninsula. Punta Chivato is presented as a microcosm of the entire region; it can enable visitors to better understand major themes in the natural history of the Gulf of California and its geological past. All of the hikes begin at the southeast corner of the Punta Chivato promontory and loop out in different directions. Each circuit is designed to minimize overlap with adjacent hikes and to maximize the visitor's exposure to instructive variations in the landscape. Each chapter features additional reflections on a geologist of another time and place who has advanced the field in a way that elucidates the material covered in that chapter. Through these asides, readers will learn the basic lessons about how geologists read the secrets hidden in landscapes.

Discovering the Geology of Baja California invites visitors to these shores to explore not only rocks and fossils but also the continuum of past ecosystems with the ecology of the present. It offers both an unparalleled guide to a remote area and a new understanding of life caught in an endless cycle of change.
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front cover of The Gulf of California
The Gulf of California
Biodiversity and Conservation
Richard C. Brusca
University of Arizona Press, 2010

Few places in the world can claim such a diversity of species as the Gulf of California (Sea of Cortez), with its 6,000 recorded animal species estimated to be half the number actually living in its waters. So rich are the Gulf's water that over a half-million tons of seafood are taken from them annually—and this figure does not count the wasted by-catch, which would triple or quadruple that tonnage. This timely book provides a benchmark for understanding the Gulf's extraordinary diversity, how it is threatened, and in what ways it is—or should be—protected.

In spite of its dazzling richness, most of the Gulf's coastline now harbors but a pale shadow of the diversity that existed just a half-century ago. Recommendations based on sound, careful science must guide Mexico in moving forward to protect the Gulf of California.

This edited volume contains contributions by twenty-four Gulf of California experts, from both sides of the U.S.-Mexico border. From the origins of the Gulf to its physical and chemical characteristics, from urgently needed conservation alternatives for fisheries and the entire Gulf ecosystem to information about its invertebrates, fishes, cetaceans, and sea turtles, this thought-provoking book provides new insights and clear paths to achieve sustainable use solidly based on robust science. The interdisciplinary, international cooperation involved in creating this much-needed collection provides a model for achieving success in answering critically important questions about a precious but rapidly disappearing ecological treasure.

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front cover of On Desert Shores
On Desert Shores
Archaeology and History of the Western Midriff Islands in the Gulf of California
Thomas Bowen
University of Utah Press, 2022
Hot, arid, and uninhabited, the western Midriff Islands lie in the Gulf of California, surrounded by an often-treacherous sea. Given these conditions, why would ancient people go there, and why would anybody go there today? Thomas Bowen addresses these questions in the first comprehensive history of these islands.

Bowen draws on a wide range of sources, including the first archaeological field work ever conducted on the islands, written accounts dating back to the sixteenth century, oral histories of native people, contemporary interviews, and his own firsthand experiences. Among those cast in the islands’ historical drama are the Seri (Comcaac) people of Sonora, the extinct Cochimís of Baja California, Spanish explorers, Jesuit missionaries, pearl fishers, egg collectors, guano miners, hydrographers, cartographers, small-scale Mexican fishermen, recreational anglers, writers, photographers, ecotourists, shipwreck victims, and, most importantly, scientists. The final chapter documents the impact of this human activity on the islands’ ecosystems and examines conservation efforts now underway. Compelling and richly illustrated, this broadly based work provides a unique picture of these extraordinary islands.
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front cover of Plant Life of a Desert Archipelago
Plant Life of a Desert Archipelago
Flora of the Sonoran Islands in the Gulf of California
Richard Stephen Felger and Benjamin Theodore Wilder, in collaboration with Humberto Romero-Morales; Foreword by Exequiel Ezcurra
University of Arizona Press, 2012

The desert islands of the Gulf of California are among the world's best-preserved archipelagos. The diverse and unique flora, from the cardón forests of Cholludo to the agave-dominated slopes of San Esteban remain much as they were centuries ago, when the Comcaac (Seri people) were the only human presence in the region. Almost 400 plant species exist here, with each island manifesting a unique composition of vegetation and flora. For thousands of years, climatic and biological forces have sculpted a set of unparalleled desert worlds.

Plant Life of a Desert Archipelago is the first in-depth coverage of the plants on islands in the Gulf of California found in between the coasts of Baja California and Sonora. The work is the culmination of decades of study by botanist Richard Felger and recent investigations by Benjamin Wilder, in collaboration with Sr. Humberto Romero-Morales, one of the most knowledgeable Seris concerning the region's flora. Their collective effort weaves together careful and accurate botanical science with the rich cultural and stunning physical setting of this island realm.

The researchers surveyed, collected, and studied thousands of plants—seen here in meticulous illustrations and stunning color photographs—providing the most precise species accounts of the islands ever made. To access remote parts of the islands the authors worked directly with the Comcaac, an indigenous community who have lived off marine and terrestrial life in this coastal desert region for centuries. Invaluable information regarding indigenous names and distributions are an intrinsic part of this work.

The flora descriptions are extraordinarily detailed and painstakingly crafted for field biologists. Conservationists, students, and others who are interested in learning about the natural wealth of the Gulf of California, desert regions, or islands in general are sure to be captivated by this rich and fascinating volume.
 

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front cover of Reef Fishes of the Sea of Cortez
Reef Fishes of the Sea of Cortez
The Rocky-Shore Fishes of the Gulf of California, Revised Edition
By Donald A. Thomson, Lloyd T. Findley, and Alex N. Kerstitch
University of Texas Press, 2000

First published in 1979, this guide has become the standard resource for scientists, divers, and spearfishers interested in the fishes of the tropical Pacific Coast. The authors have revised and updated this edition to include the most current taxonomic information, additional species descriptions, and new illustrations.

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Vaquita
Science, Politics, and Crime in the Sea of Cortez
Brooke Bessesen
Island Press, 2018
"Intrepid conservation detective story." —Nature

"A lucid, informed, and gripping account...a must-read." —Science

"Passionate...a heartfelt and alarming tale." —Publishers Weekly


"Gripping...a well-told and moving tale of environmentalism and conservation." —Kirkus

"Compelling." —Library Journal 

In 2006, vaquita, a diminutive porpoise making its home in the Upper Gulf of California, inherited the dubious title of world’s most endangered marine mammal. Nicknamed “panda of the sea” for their small size and beguiling facial markings, vaquitas have been in decline for decades, dying by the hundreds in gillnets intended for commercially valuable fish, as well as for an endangered fish called totoaba. When international crime cartels discovered a lucrative trade in the swim bladders of totoaba, illegal gillnetting went rampant, and now the lives of the few remaining vaquitas hang in the balance.

Author Brooke Bessesen takes us on a journey to Mexico’s Upper Gulf region to uncover the story. She interviewed townspeople, fishermen, scientists, and activists, teasing apart a complex story filled with villains and heroes, a story whose outcome is unclear. When diplomatic and political efforts to save the little porpoise failed, Bessesen followed a team of veterinary experts in a binational effort to capture the last remaining vaquitas and breed them in captivity—the best hope for their survival. In this fast-paced, soul-searing tale, she learned that there are no easy answers when extinction is profitable.

Whether the rescue attempt succeeds or fails, the world must ask itself hard questions. When vaquita and the totoaba are gone, the black market will turn to the next vulnerable species. What will we do then?
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