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Author : Jane Mary Resnick
Publisher : Unknown
Page : 176 pages
File Size : 54,9 Mb
Release : 1988
Category : Environmental management
ISBN : UCSD:31822028556942
Author : Michael Barbour,Todd Keeler-Wolf,Allan A. Schoenherr
Publisher : Univ of California Press
Page : 734 pages
File Size : 45,9 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 : Marshall Cavendish Corporation
Publisher : Marshall Cavendish
Page : 148 pages
File Size : 43,8 Mb
Release : 2001
Category : Nature
ISBN : 0761471944
A reference encyclopedia providing information on endangered wildlife and plants throughout the world.
Author : George W. Cox
Publisher : Unknown
Page : 408 pages
File Size : 40,6 Mb
Release : 1999-09
Category : Nature
ISBN : UOM:39015050193179
The world is in the midst of an ecological explosion with devastating implications. Thousands of species of microbes, plants, and animals are being introduced, both deliberately and inadvertently, to new land areas, seas, and freshwaters. In many regions, these new colonists are running wild, disrupting the dynamics of ecosystems, pushing native species toward extinction, and causing billions of dollars in direct economic damages.Alien Species in North America and Hawaii provides a comprehensive overview of the invasive species phenomenon, examining the threats posed and the damage that has already been done to ecosystems across North America and Hawaii. George W. Cox considers both the biological theory underlying invasions and the potential and actual effects on ecosystems and human activities. His book offers a framework for understanding the problem and provides a detailed examination of species and regions. Specific chapters examine: North American invaders and their threats how exotic species are dispersed to new regions how physical and biotic features influence the establishment and spread of invasives patterns of exotic invasions, with separate chapters covering each of the ten most seriously invaded regions and ecosystems patterns of invasiveness exhibited by major groups of exotics the theory of invasive capability of alien species and the resistance of communities to invasion theoretical aspects of ecosystem impacts of invaders and the evolutionary interaction of invaders and natives management and public policy issuesAlien Species in North America and Hawaii offers for the first time an assessment and synthesis of the problem of invasive species in North American and Hawaiian ecosystems. Scientists, conservation professionals, policymakers, and anyone involved with the study and control of invasive species will find the book an essential guide and reference to one of the most serious and widespread threats to global biodiversity.
Author : Anonim
Publisher : Unknown
Page : 1836 pages
File Size : 41,7 Mb
Release : 1980
Category : Agriculture
ISBN : UIUC:30112102097703
Author : Anonim
Publisher : Unknown
Page : 112 pages
File Size : 54,9 Mb
Release : 1994
Category : Goats
ISBN : CORNELL:31924073366241
Author : Arthur William Sampson,Jesperson Beryl S.
Publisher : University of California, Agriculture and Natural Resources
Page : 176 pages
File Size : 47,8 Mb
Release : 1981
Category : Nature
ISBN : 0931876540
Author : Anonim
Publisher : Unknown
Page : 468 pages
File Size : 49,6 Mb
Release : 2008
Category : Birds
ISBN : STANFORD:36105131923943
Author : David J. Hafner
Publisher : IUCN
Page : 188 pages
File Size : 51,6 Mb
Release : 1998
Category : Nature
ISBN : 2831704634
The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author : U.S. Fish and Wildlife Service
Publisher : Unknown
Page : 876 pages
File Size : 54,7 Mb
Release : 1981
Category : Canada goose
ISBN : UCSD:31822009785288
All aspects of Canada goose biology, research, management and taxonomy are included. Literature search was carried out through 1977. 646 citations.
Author : William C. Pitt,James Beasley,Gary W. Witmer
Publisher : CRC Press
Page : 645 pages
File Size : 50,5 Mb
Release : 2017-10-25
Category : Nature
ISBN : 9781498704854
Vertebrate invasive species are important ecologically, socially, and scientifically throughout much of the globe. However, the interdiction and options for management of invasive species are driven by localized regulation at the country or even state level and thus the management of species must be framed within that context. This book is focused around the management of invasive vertebrate species in the United States, although readers will find much of the material broadly applicable to invasive species in other regions. Vertebrate invasive species cause damage to agriculture, property, natural resources, and threaten human health and safety. However, most of these species occur in the United States resulting from human-mediated activities, often being released intentionally. For the first time, the wealth of scientific information about vertebrate invasive species in the United States is summarized and synthesized in a single volume to be easily accessible to ecologists and natural resource managers. With a focus on prominent terrestrial invasive species that have a history of policy and management and highlighting contemporary issues and management, this book consists of 18 chapters written by experts from across the United States. The first section of the book focuses on overarching policy and management topics associated with vertebrate invasive species; including biosecurity threats and risk assessment, policy and regulation, and the economics of their management. The second section provides in-depth reviews of noteworthy invasive mammals, birds, amphibians, and reptiles. After finishing this book, the reader should understand the complexity of managing invasive species, the unique challenges that each new species may present, and the steps forward that may decrease the impact of these species on the environment, human health, and the economy.
Author : Allison Alberts
Publisher : World Conservation Union
Page : 0 pages
File Size : 44,9 Mb
Release : 2000
Category : Iguanas
ISBN : 2831704561
The West Indian Iguanas form a unique group of species inhabiting tropical dry forests throughout the Bahanas and the Greater and Lesser Antilles. They are among the most endangered of the world's lizards, primarily because much of their fragile island habitat has been eliminated by human development or severely degraded by exotic species. The Jamaican iguana, considered by some to be the rarest lizard in the world, may number no more than 100 adults. Because iguanas are likely to be important seed dispersers for many endemic plants, their loss has serious consequences for the ecosystems in which they live. This plan summarizes the status of wild populations, identifies the primary threats, and recommends specific actions. A list of national agencies, research institutions in the countries of origin of taxa covered in the plan is included.
Author : Anthony Godfrey
Publisher : U.S. Government Printing Office
Page : 688 pages
File Size : 43,9 Mb
Release : 2005
Category : Nature
ISBN : STANFORD:36105122003770
"United States Department of Agriculture, Forest Service, Pacific Southwest Region"
Author : Joshua Ross Ginsberg
Publisher : IUCN
Page : 124 pages
File Size : 55,8 Mb
Release : 1990
Category : Canidae
ISBN : 2880329965
Author : Anonim
Publisher : Unknown
Page : 932 pages
File Size : 41,6 Mb
Release : 1891
Category : Agriculture
ISBN : UIUC:30112072702282