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Author : Grady Linder Webster,Conrad J. Bahre
Publisher : UNM Press
Page : 280 pages
File Size : 47,7 Mb
Release : 2001
Category : History
ISBN : 0826322395
Presents a new agenda for study of the strikingly diverse shrub and grassland ecosystems of the U.S./Mexico border.
Author : Jean-Luc E. Cartron,Gerardo Ceballos,Richard Stephen Felger
Publisher : Oxford University Press on Demand
Page : 513 pages
File Size : 49,7 Mb
Release : 2005-08-25
Category : History
ISBN : 9780195156720
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.
Author : Daniel G. Milchunas
Publisher : Unknown
Page : 134 pages
File Size : 47,5 Mb
Release : 2006
Category : Grazing
ISBN : MINN:31951D02977875G
Author : Anonim
Publisher : University of Arizona Press
Page : 354 pages
File Size : 47,9 Mb
Release : 2003-05
Category : Technology & Engineering
ISBN : 0816523061
The Changing Mile, originally published in 1965, was a benchmark in ecological studies, demonstrating the prevalence of change in a seemingly changeless place. Photographs made throughout the Sonoran Desert region in the late 1800s and early 1900s were juxtaposed with photographs of the same locations taken many decades later. The nearly one hundred pairs of images revealed that climate has played a strong role in initiating many changes in the region. This new book updates the classic by adding recent photographs to the original pairs, providing another three decades of data and showing even more clearly the extent of change across the landscape. During these same three decades, abundant information about climatic variability, land use, and plant ecology has accumulated, making it possible to determine causes of change with more confidence. Using nearly two hundred additional triplicate sets of unpublished photographs, The Changing Mile Revisited utilizes repeat photographs selected from almost three hundred stations located in southern Arizona, in the Pinacate region of Mexico, and along the coast of the Gulf of California. Coarse photogrammetric analysis of this enlarged photographic set shows the varied response of the region's major plant species to the forces of change. The images show vegetation across the entire region at sites ranging in elevation from sea level to a mile above sea level. Some sites are truly arid, while others are located above the desert in grassland and woodland. Common names are used for most plants and animals (with Latin equivalents in endnotes) to make the book more accessible to non-technical readers. The original Changing Mile was based upon a unique set of data that allowed the authors to evaluate the extent and magnitude of vegetation change in a large geographic region. By extending the original landmark study, The Changing Mile Revisited will remain an indispensable reference for all concerned with the fragile desert environment.
Author : Michael Barbour,Todd Keeler-Wolf,Allan A. Schoenherr
Publisher : Univ of California Press
Page : 734 pages
File Size : 42,9 Mb
Release : 2007-07-17
Category : Science
ISBN : 9780520933361
This thoroughly revised, entirely rewritten edition of what is the essential reference on California’s diverse and ever-changing vegetation now brings readers the most authoritative, state-of-the-art view of California’s plant ecosystems available. Integrating decades of research, leading community ecologists and field botanists describe and classify California’s vegetation types, identify environmental factors that determine the distribution of vegetation types, analyze the role of disturbance regimes in vegetation dynamics, chronicle change due to human activities, identify conservation issues, describe restoration strategies, and prioritize directions for new research. Several new chapters address statewide issues such as the historic appearance and impact of introduced and invasive plants, the soils of California, and more.
Author : Thomas T. Veblen,William L. Baker,Gloria Montenegro,Thomas W. Swetnam
Publisher : Springer Science & Business Media
Page : 446 pages
File Size : 41,6 Mb
Release : 2006-05-10
Category : Science
ISBN : 9780387217109
Both fire and climatic variability have monumental impacts on the dynamics of temperate ecosystems. These impacts can sometimes be extreme or devastating as seen in recent El Nino/La Nina cycles and in uncontrolled fire occurrences. This volume brings together research conducted in western North and South America, areas of a great deal of collaborative work on the influence of people and climate change on fire regimes. In order to give perspective to patterns of change over time, it emphasizes the integration of paleoecological studies with studies of modern ecosystems. Data from a range of spatial scales, from individual plants to communities and ecosystems to landscape and regional levels, are included. Contributions come from fire ecology, paleoecology, biogeography, paleoclimatology, landscape and ecosystem ecology, ecological modeling, forest management, plant community ecology and plant morphology. The book gives a synthetic overview of methods, data and simulation models for evaluating fire regime processes in forests, shrublands and woodlands and assembles case studies of fire, climate and land use histories. The unique approach of this book gives researchers the benefits of a north-south comparison as well as the integration of paleoecological histories, current ecosystem dynamics and modeling of future changes.
Author : John Vankat
Publisher : Springer Science & Business Media
Page : 465 pages
File Size : 48,6 Mb
Release : 2013-05-27
Category : Science
ISBN : 9789400761490
The book provides information essential for anyone interested in the ecology of the American Southwest, including land managers, environmental planners, conservationists, ecologists and students. It is unique in its coverage of the hows and whys of dynamics (changes) in the major types of vegetation occurring on southwestern mountains and plateaus. It explains the drivers and processes of change, describes historical changes and provides conceptual models that diagrammatically illustrate past, present, and potential future changes. All major types of vegetation are covered: spruce-fir, mixed conifer, and ponderosa pine forests, pinyon-juniper vegetation, subalpine-montane grassland, and Gambel oak and interior chaparral shrublands. The focus is on vegetation that is relatively undisturbed, i.e., in natural and near-natural condition, and how it responds to natural disturbances such as fire and drought, as well as to anthropogenic disturbances such as fire exclusion and invasive species
Author : Timothy Edward Fulbright,José Alfonso Ortega-Santos
Publisher : Texas A&M University Press
Page : 330 pages
File Size : 44,9 Mb
Release : 2013-05-08
Category : Science
ISBN : 9781603449519
The original, 2006 edition of Timothy Edward Fulbright and J. Alfonso Ortega-S.’s White-Tailed Deer Habitat: Ecology and Management on Rangelands was hailed as “a splendid reference for the classroom and those who make their living from wildlife and the land” and as “filling a niche that is not currently approached in the literature.” In this second, full-color edition, revised and expanded to include the entire western United States and northern Mexico, Fulbright and Ortega-S. provide a carefully reasoned synthesis of ecological and range management principles that incorporates rangeland vegetation management and the impact of crops, livestock, predation, and population density within the context of the arid and semiarid habitats of this broad region. As landowners look to hunting as a source of income and to the other benefits of managing for wildlife, the clear presentation of the up-to-date research gathered in this book will aid their efforts. Essential points covered in this new edition include: White-tailed deer habitat requirements Nutritional needs of White-tailed deer Carrying capacity Habitat management Hunting Focused across political borders and written with an understanding of environments where periodic drought punctuates long-term weather patterns, this revised and expanded edition of White-Tailed Deer Habitat: Ecology and Management on Rangelands will aid landowners, researchers, and naturalists in their efforts to integrate land management and use with sound ecological practices.
Author : John Alcock
Publisher : University of Arizona Press
Page : 348 pages
File Size : 45,7 Mb
Release : 2009-04-17
Category : Nature
ISBN : 0816528357
Life in the desert is a waiting game: waiting for rain. And in a year of drought, the stakes are especially high. John Alcock knows the Sonoran Desert better than just about anyone else, and in this book he tracks the changes he observes in plant and animal life over the course of a drought year. Combining scientific knowledge with years of exploring the desert, he describes the variety of ways in which the wait for rain takes placeÑand what happens when it finally comes. The desert is a land of five seasons, featuring two summersÑhot, dry months followed by monsoonÑand Alcock looks at the changes that take place in an entire desert community over the course of all five. He describes what he finds on hikes in the Usery Mountains near Phoenix, where he has studied desert life over three decades and where frequent visits have enabled him to notice effects of seasonal variation that might escape a casual glance. Blending a personal perspective with field observation, Alcock shows how desert ecology depends entirely on rainfall. He touches on a wide range of topics concerning the desertÕs natural history, noting the response of saguaro flowers to heat and the habits of predators, whether soaring red-tailed hawk or tiny horned lizard. He also describes unusual aspects of insects that few desert hikers will have noticed, such as the disruptive color pattern of certain grasshoppers that is more effective than most camouflage. When the Rains Come is brimming with new insights into the desert, from the mating behaviors of insects to urban sprawl, and features photographs that document changes in the landscape as drought years come and go. It brings us the desert in the harshest of timesÑand shows that it is still teeming with life.
Author : V. Alaric Sample,R. Patrick Bixler,Char Miller
Publisher : University Press of Colorado
Page : 346 pages
File Size : 53,8 Mb
Release : 2016-08-15
Category : Science
ISBN : 9781607324591
Forest Conservation in the Anthropocene provides thought-provoking insight into the ongoing environmental crises that climate change is generating and raises critical questions about how public and private land managers in North America will adapt to the climatological disruptions that are already transforming the ecological structures of these forests. In this pathbreaking anthology, a team of leading environmental researchers probes the central dilemmas that ecologists, forest land managers, state and federal agencies, and grassroots organizations are confronting—and will continue to confront—in the coming century. Each chapter examines strategies that are currently being tested across the country as scientists, citizen-scientists, policy makers, academics, and activists work to grasp their options and opportunities for a future that will be shaped by ongoing environmental upheaval. Successful adaptation to the challenges of climate change requires a transdisciplinary perspective. Forest Conservation in the Anthropocene provides a compelling set of arguments and case studies that underscores the need for innovative policies and energetic actions. Contributors: Craig D. Allen, Mark Anderson, Susan Beecher, R. Travis Belote, Timothy J. Brown, Anne A. Carlson, Tim Caro, Grace K. Charles, Dave Cleaves, Dena J. Clink, Ayesha Dinshaw, R. Kasten Dumroese, Jonas Epstein, Alexander M. Evans, Todd Gartner, Jessica E. Halofsky, Nels Johnson, Linda A. Joyce, Laura Falk McCarthy, Heather McGray, Constance I. Millar, James Mulligan, Chadwick Dearing, David L. Peterson, Will Price, Janine M. Rice, Jason Riggio, Tania Schoennagel, Mark L. Shaffer, Curt Stager, Scott L. Stephens, Thomas W. Swetnam, Gary M. Tabor, Christopher Topik, Monica G. Turner, Thomas T. Veblen, Alexandra M. Weill, Anthony L. Westerling, Carolyn Whitesell, Mary I. Williams
Author : Timothy E. Fulbright
Publisher : Texas A&M University Press
Page : 262 pages
File Size : 46,5 Mb
Release : 2005
Category : Range management
ISBN : 160344565X
For most of the last century, range management meant managing land for livestock. How well a landowner grew the grass that cattle ate was the best measure of success. In this century, landowners look to hunting and wildlife viewing for income; rangeland is now also wildlife habitat, and they are managing their land not just for cattle but also for wildlife, most notably deer and quail. Unlike other books on white-tailed deer in places where rainfall is relatively high and the environment stable, this book takes an ecological approach to deer management in the semiarid lands of Oklahoma, Texas, and northern Mexico. These are the least productive of white-tail habitats, where periodic drought punctuates long-term weather patterns. The book's focus on this landscape across political borders is one of its original and lasting contributions. Another is its contention that good management is based on ecological principles that guide the manager's thinking about: Habitat Requirements of White-Tailed Deer White-Tailed Deer Nutrition Carrying Capacity Habitat Manipulation Predators Hunting Timothy Edward Fulbright is a Regents Professor and the Meadows Professor in Semiarid Land Ecology at the Caesar Kleberg Wildlife Research Institute, Texas A&M University-Kingsville. J. Alfonso Ortega-S., is an associate professor at the Caesar Kleberg Wildlife Research Institute, Texas A&M University-Kingsville.
Author : Anonim
Publisher : Unknown
Page : 458 pages
File Size : 49,6 Mb
Release : 1998
Category : Forests and forestry
ISBN : UCBK:C094333524
Author : Timothy Brush
Publisher : Texas A&M University Press
Page : 277 pages
File Size : 50,5 Mb
Release : 2005
Category : Nature
ISBN : 9781603446167
"Halfway between Dallas and Mexico City, along the last few hundred miles of the Rio Grande, lies a subtropical outpost where people from all over the world come to see birds. Located between the temperate north and the tropic south, with desert to the west and ocean to the east, the Lower Rio Grande Valley of Texas provides habitat for a variety of birds seen nowhere else in the United States. If you want to see a Hooked-billed Kite, Muscovy Duck, or Altamira Oriole, this is the place." "Drawing on years of personal observation and study, Timothy Brush has written a classic work of natural history about the little-known breeding bird communities of the Valley and the diversity of nesting strategies and behaviors that can be seen. Brush estimates that there are more than 150 current breeding species in the Lower Rio Grande Valley. In Nesting Birds of a Tropical Frontier, he describes the habits, distribution, changes in occurrence, and general outlook of these as well as former breeders, concentrating on Valley specialties and other birds of particular interest in the Valley." "Art by Gerald Sneed and color photographs by several of Texas' top nature photographers show off some of the Valley's famous birds. Historical maps of vegetation and geology help us gain a better perspective on the changes that have taken place along the Rio Grande and on the breeding bird communities of the U.S.-Mexico frontier."--Jacket
Author : Juliet C. Stromberg,Barbara Tellman
Publisher : University of Arizona Press
Page : 552 pages
File Size : 55,5 Mb
Release : 2009
Category : Science
ISBN : 0816527520
contributors - biologists, ecologists, geomorphologists, historians, hydrologists, lawyers, and political scientists - weave together threads from their diverse perspectives to reveal the processes that shape the past, present, and future of the San Pedro's riparian and aquatic ecosystems. They review the biological communities of the San Pedro and the stream hydrology and geomorphology that affects its riparian biota. They then look at conservation and management challenges along three sections of the San Pedro, from its headwaters in Mexico in its confluence with the Gila River, describing legal and policy issues and their interface with science; activities related to mitigation, conservation, and restoration; and a prognosis of the potential for sustaining the basin's riparian system." "Complemented by a foreword written by James Shuttleworth, these chapters demonstrate the complexity of the San Pedro's ecological and hydrological conditions, showing that there are no easy --
Author : Johan T. du Toit,Richard Kock,James Deutsch
Publisher : John Wiley & Sons
Page : 448 pages
File Size : 55,8 Mb
Release : 2012-11-06
Category : Science
ISBN : 9781444317107
Rangeland ecosystems which include unimproved grasslands,shrublands, savannas and semi-deserts, support half of theworld’s livestock, while also providing habitats for some ofthe most charismatic of wildlife species. This book examines thepressures on rangeland ecosystems worldwide from human land use,over-hunting, and subsistence and commercial farming of livestockand crops. Leading experts have pooled their experiences from allcontinents to cover the ecological, sociological, political,veterinary, and economic aspects of rangeland management today. This book provides practitioners and students ofrangeland management and wildland conservation with a diversity ofperspectives on a central question: can rangelands be wildlands? The first book to examine rangelands from a conservationperspective Emphasizes the balance between the needs of people andlivestock, and wildlife Written by an international team of experts covering allgeographical regions Examines ecological, sociological, political, veterinary, andeconomic aspects of rangeland management and wildland conservation,providing a diversity of perspectives not seen before in a singlevolume
