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Biodiversity Ecosystems And Conservation In Northern Mexico

Author: Jean-Luc E. Cartron
Publisher: Oxford University Press on Demand
ISBN: 0195156722
Size: 45.12 MB
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Encompassing tropical and temperate forests, arid lands, and the Gulf of California, northern Mexico is one of the most biologically diverse areas in the world. Representing the collaborative efforts of ecologists in the U.S.

Biological Diversity Of Mexico

Author: T. P. Ramamoorthy
Publisher: Oxford University Press, USA
Size: 36.50 MB
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Mexico is among the richest countries in the world in terms of the number of native animal and plant species. Found in a wide variety of habitats--from alpine meadows and tropical forests to vast stretches of desert and isolated pockets of biogeographical uniqueness--these species comprise a fascinating, important, and vastly underutilized biological laboratory. This volume presents a collection of selected papers that explore this marvelous biological abundance. The book is divided into six parts. The first section sets the stage with geological and paleobotanical overviews; the succeeding five sections employ a strong taxonomic base to document species richness, endemism and distribution for animals and plants, followed by reviews of contrasting ecosystems and plants that are closely associated with humans. The last section summarizes the disheartening rate of habitat destruction which threatens to diminish this diversity. In addition to the purely scientific value of this important work, it provides the much-needed basic data that will help conservation policymakers assess and respond to Mexico's ecological evolution.

Political Ecologies Of Cattle Ranching In Northern Mexico

Author: Eric P. Perramond
Publisher: University of Arizona Press
ISBN: 0816502269
Size: 30.91 MB
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Private ranchers survived the Mexican Revolution and the era of agrarian reforms, and they continue to play key roles in the ecology and economy of northern Mexico. In this study of the Río Sonora region of northern Mexico, where ranchers own anywhere from several hundred to tens of thousands of acres, Eric Perramond evaluates management techniques, labor expenditures, gender roles, and decision-making on private ranches of varying size. By examining the economic and ecological dimensions of daily decisions made on and off the ranch he shows that, contrary to prevailing notions, ranchers rarely collude as a class unless land titles are at issue, and that their decision-making is as varied as the landscapes they oversee. Through first-hand observation, field measurements, and intimate ethnographies, Perramond sheds light on a complex set of decisions made, avoided, and confronted by these land managers and their families. He particularly shows that ranching has endured because of its extended kinship network, its reliance on all household members, and its close ties to local politics. Perramond follows ranchers caught between debt, drought, and declining returns to demonstrate the novel approaches they have developed to adapt to changing economies and ecologies alike—such as strategically marketing the ranches for wild-game hunting or establishing small businesses that subsidize their lifestyles and livelihoods. Even more importantly, he reveals the false dichotomy between private and communal ranching. Political Ecologies of Cattle Ranching in Northern Mexico is essential reading for anyone interested in the future of ranching in western North America.

Prairie Conservation

Author: Fred B. Samson
Publisher: Island Press
ISBN: 9781610913942
Size: 27.17 MB
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The area of native prairie known as the Great Plains once extended from Canada to the Mexican border and from the foothills of the Rocky Mountains to western Indiana and Wisconsin. Today the declines in prairie landscape types, estimated to be as high as 99%, exceed those of any other major ecosystem in North America. The overwhelming loss of landscape and accompanying loss of species constitute a real threat to both ecological and human economic health.Prairie Conservation is a comprehensive examination of the history, ecology, and current status of North American grasslands. It presents for the first time in a single volume information on the historical, economic, and cultural significance of prairies, their natural history and ecology, threats, and conservation and restoration programs currently underway. Chapters cover: environmental history of the Great Plains the economic value of prairie prairie types -- tallgrass, mixed grass, shortgrass, wetlands -- and the ecological processes that sustain each type prairie fauna -- invertebrates, fish and other aquatic creatures, amphibians and reptiles, birds, and mammals conservation programs such as the Great Plains Partnership, Canada's Prairie Conservation Action Plan, the U.S. Prairie Pothole Joint Venture, and others The book brings together knowledge and insights from a wide range of experts to describe and explain the importance of prairies and to position them in the forefront of North American conservation efforts. Praire Conservation is an essential reference for anyone interested in prairie ecology and conservation and will play a critical role in broadening our awareness and understanding of prairie ecosystems.

The Gulf Of California

Author: Richard C. Brusca
Publisher: University of Arizona Press
ISBN: 9780816527397
Size: 33.51 MB
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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 annuallyÑand 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 isÑor should beÑprotected. 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.

Biology And Conservation Of North American Tortoises

Author: David C. Rostal
Publisher: JHU Press
ISBN: 1421413787
Size: 44.84 MB
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Tortoises, those unmistakable turtles, evolved from a lineage that split off from the familiar pond turtles roughly 100 million years ago. Over time, these plant-eating land turtles spread around the world, growing to an enormous size (depending on the species) and living so long that they have become the stuff of legends. By most accounts, they are indeed the longest-lived of the turtles, with good records suggesting individuals may live as long as 180 years (anecdotal records suggest that some reach ages of 200 years or more). Providing the first comprehensive treatment of North America’s tortoises, Biology and Conservation of North American Tortoises brings together leading experts to give an overview of tortoise morphology, taxonomy, systematics, paleontology, physiology, ecology, behavior, reproduction, diet, growth, health, and conservation. The contributors carefully combine their own expertise and observations with results from studies conducted by hundreds of other researchers. The result is a book that belongs in the library of every herpetologist. ContributorsGustavo Aguirre L.Linda J. AllisonMatthew J. ArescoRoy C. Averill-MurrayJoan E. BerishKristin H. BerryDennis M. BrambleK. Kristina DrakeTaylor EdwardsTodd C. EsqueRichard FranzCraig GuyerJ. Scott HarrisonSharon M. HermannJ. Howard HutchisonElliott R. JacobsonValerie M. JohnsonRichard T. KazmaierEarl D. McCoyPhilip A. MedicaRobert W. MurphyHenry R. Mushinsky Kenneth E. NussearMichael P. O’ConnorThomas A. Radzio David C. RostalLora L. SmithJames R. SpotilaCraig B. StanfordC. Richard TracyTracey D. TubervilleMichael TumaThane Wibbels

Dry Borders

Author: Richard Stephen Felger
ISBN: 9780874808186
Size: 80.98 MB
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An excursion into the Sonoran Desert along the U.S.-Mexico border brings to life the beauty of a spare and seductive terrain, telling the stories of the people, plants, and politics that layer a landscape in need of understanding and protection. Simultaneous.

Terrestrial Ecoregions Of North America

Author: Taylor H. Ricketts
Publisher: Island Press
ISBN: 9781559637220
Size: 24.12 MB
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Using a rigorous ecoregion-based approach, rather than the more common state-by-state analysis, a team of scientists from World Wildlife Fund has produced a comprehensive assessment of the current status of biodiversity in North America north of Mexico. The book presents the rationale for the ecoregion approach, describes the biological distinctiveness of North American ecoregions, assesses the level of threats facing each, presents a conservation agenda for the next decade, and sets forth recommendations for preserving and restoring biodiversity.