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Author : Anonim
Publisher : Ardent Media
Page : 16 pages
File Size : 44,9 Mb
Release : 2024-06-13
Category : Electronic
ISBN : 8210379456XXX
Author : Anonim
Publisher : Unknown
Page : 115 pages
File Size : 47,9 Mb
Release : 1983
Category : Range management
ISBN : MINN:31951D02889303G
Author : Barbara Tellman
Publisher : Unknown
Page : 404 pages
File Size : 42,6 Mb
Release : 1998
Category : Arid regions plants
ISBN : UIUC:30112040671627
This conference was designed to provide a non-confrontational setting for a variety of people from differing viewpoints to discuss the threats facing arid grasslands of the Southwest. Participants included ranchers and other private economists, scientists, and students. The sessions were organized around the major themes of understanding grasslands, identifying grassland issues, managing grasslands, and seeking solutions to grassland issues. Many of the sessions were in the form of panel discussions or informal presentations.
Author : Andrew Millington,Mark Blumler,Udo Schickhoff
Publisher : SAGE
Page : 626 pages
File Size : 52,8 Mb
Release : 2011-09-22
Category : Science
ISBN : 9781446254455
A superb resource for understanding the diversity of the modern discipline of biogeography, and its history and future, especially within geography departments. I expect to refer to it often. - Professor Sally Horn, University of Tennessee "As you browse through this fine book you will be struck by the diverse topics that biogeographers investigate and the many research methods they use.... Biogeography is interdisciplinary, and a commonly-voiced concern is that one biogeographer may not readily understand another′s research findings. A handbook like this is important for synthesising, situating, explaining and evaluating a large literature, and pointing the reader to informative publications." - Geographical Research "A valuable contribution in both a research and teaching context. If you are biologically trained, it provides an extensive look into the geographical tradition of biogeography, covering some topics that may be less familiar to those with an evolution/ecology background. Alternatively, if you are a geography student, researcher, or lecturer, it will provide a useful reference and will be invaluable to the non-biogeographer who suddenly has the teaching of an introductory biogeography course thrust upon them." - Adam C. Algar, Frontiers of Biogeography The SAGE Handbook of Biogeography is a manual for scoping the past, present and future of biogeography that enable readers to consider, where relevant, how similar biogeographical issues are tackled by researchers in different ′schools′. In line with the concept of all SAGE Handbooks, this is a retrospective and prospective overview of biogeography that will: Consider the main areas of biogeography researched by geographers Detail a global perspective by incorporating the work of different schools of biogeographers Ecplore the divergent evolution of biogeography as a discipline and consider how this diversity can be harnessed Examine the interdisciplinary debates that biogeographers are contributing to within geography and the biological sciences. Aimed at an international audience of research students, academics, researchers and practitioners in biogeography, the text will attract interest from environmental scientists, ecologists, biologists and geographers alike.
Author : Robert H. Webb,S. A. Leake,Raymond M. Turner
Publisher : University of Arizona Press
Page : 482 pages
File Size : 49,5 Mb
Release : 2007
Category : Science
ISBN : 0816525889
Woody wetlands constitute a relatively small but extremely important part of the landscape in the southwestern United States. These riparian habitats support more than one-third of the regionÕs vascular plant species, are home to a variety of wildlife, and provide essential havens for dozens of migratory animals. Because of their limited size and disproportionately high biological value, the goal of protecting wetland environments frequently takes priority over nearly all other habitat types. In The Ribbon of Green, hydrologists Robert H. Webb, and Stanley A. Leake and botanist Raymond M. Turner examine the factors that affect the stability of woody riparian vegetation, one of the largest components of riparian areas. Such factors include the diversion of surface water, flood control, and the excessive use of groundwater. Combining repeat photography with historical context and information on species composition, they document more than 140 years of change. Contrary to the common assumption of widespread losses of this type of ecosystem, the authors show that vegetation has increased on many river reaches as a result of flood control, favorable climatic conditions, and large winter floods that encourage ecosystem disturbance, germination, and the establishment of species in newly generated openings. Bringing well-documented and accessible insights to the ecological study of wetlands, this book will influence our perception of change in riparian ecosystems and how riparian restoration is practiced in the Southwest, and it will serve as an important reference in courses on plant ecology, riparian ecology, and ecosystem management.
Author : Hasan Arman,Ibrahim Yuksel
Publisher : BoD – Books on Demand
Page : 120 pages
File Size : 41,6 Mb
Release : 2018-05-23
Category : Science
ISBN : 9781789231540
Arid environments are basically associated with water scarcity. Therefore, soils will have an extremely low moisture level to support plant and animal life as well as human social life. Sustainability is the long durability of systems and processes within various adapted environmental conditions. Recently, systematic scientific studies on arid environments and sustainability have become more attractive, critical, and sound than the previous years. Sharing such experiences related to different environmental circumstances will absolutely help scientists and decision-makers to have better interpretation of their own environment. By learning lessons, appropriate, fast, and effective approaches require to implement for overwhelming such problems. Such actions will certainly lead to more secure and sustainable environments for plant, animal, and human life.
Author : Anonim
Publisher : Unknown
Page : 124 pages
File Size : 55,9 Mb
Release : 1986
Category : Arid regions plants
ISBN : MINN:31951D030012074
Author : Enrique Campos-Lopez
Publisher : Routledge
Page : 370 pages
File Size : 49,8 Mb
Release : 2019-03-08
Category : Political Science
ISBN : 9780429705069
In this book, the authors integrate various perspectives on the evaluation of natural resources in arid and semiarid zones, analyze development options, and discuss systems analysis tools that could be important for the management of technology.
Author : Anonim
Publisher : Unknown
Page : 116 pages
File Size : 54,5 Mb
Release : 1976
Category : Biology
ISBN : UGA:32108024135546
Author : Anonim
Publisher : Unknown
Page : 90 pages
File Size : 41,6 Mb
Release : 1981
Category : Botany
ISBN : STANFORD:36105033026522
Author : Frank E. Wozniak
Publisher : Unknown
Page : 632 pages
File Size : 43,7 Mb
Release : 1998
Category : Government publications
ISBN : STANFORD:36105113737634
This publication reviews both published and unpublished sources on Puebloan, Hispanic, and AngloAmerican irrigation systems in the Rio Grande Valley. Settlement patterns and Spanish and Mexican land grants in the valley are also discussed. The volume includes an annotated bibliography.
Author : Anonim
Publisher : Unknown
Page : 408 pages
File Size : 45,7 Mb
Release : 1998
Category : Forests and forestry
ISBN : CORNELL:31924084823586
Author : Barbara Tellman
Publisher : University of Arizona Press
Page : 451 pages
File Size : 54,5 Mb
Release : 2023-12-19
Category : Science
ISBN : 9780816553860
All over the planet, organisms of many species are appearing outside of their natural habitats—often carried by that particularly peripatetic species Homo sapiens. This book marks the first comprehensive attempt to address problems posed by expanding populations of exotic plant and animal species in the Sonoran Desert and adjacent grasslands and riparian areas. It describes the arrival and spread of non-native species as diverse as rats and saltcedar, covering both their impacts and the management of those impacts. It is estimated that as much as 60 percent of the vegetative cover of the Sonoita Creek-Patagonia Reserve, the first Nature Conservancy area designated in Arizona, is dominated by exotic plants, and that introduced fish pose a recurrent threat to the native fish of that area. Meanwhile at the Grand Canyon, invasives such as tamarisk, red brome, carp, and catfish are pervasive either in the Colorado River or in the patches of desert scrub along its shores. Throughout the Sonoran Desert and adjacent areas, from islands in the Sea of Cortés to desert grasslands, some six hundred species of non-native plants and animals have become established, with bullfrogs and Mediterranean grasses now common where they once never existed. The book brings together contributors from academia, government, and nonprofit organizations, including such experts as Gary Paul Nabhan, Richard Mack, and Alberto Búrquez-Montijo. They review historic and even prehistoric origins of non-native species—not only exotic plants, amphibians, and mammals but also insects, fish, and birds. They then examine significant problems in each major subregion and ecosystem and discuss control efforts. The volume contains the first compiled list of more than 500 naturalized exotic species in the Sonoran region. Invasive species issues are rapidly emerging as major environmental concerns both locally and worldwide. This book will assist professionals—ecologists, conservation biologists, and policy makers—involved in invasive species control in the Southwest and will be a rich resource for all concerned with protecting native species and their habitats.
Author : Richard Stephen Felger
Publisher : Unknown
Page : 114 pages
File Size : 48,5 Mb
Release : 1990
Category : Botany
ISBN : UCLA:L0066579327
Author : Anonim
Publisher : Unknown
Page : 506 pages
File Size : 53,8 Mb
Release : 1969
Category : Geology
ISBN : CHI:39622021