Download or read book San Clemente Island Feral Animal Removal written by and published by . This book was released on 1981 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement written by Chambers Consultants and Planners (Firm) and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book San Clemente Island Feral Animal Removal written by and published by . This book was released on 1981 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recovery Plan for the Endangered and Threatened Species of the California Channel Islands written by and published by . This book was released on 1984 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theater Missile Defense TMD Extended Test Range NM FL CA written by and published by . This book was released on 1995 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetation Change on San Clemente Island Following the Release from Feral Grazing Pressure written by Douglas David John Wylie and published by . This book was released on 2012 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aim: Island ecosystems worldwide have been heavily impacted by the introduction of exotic plant and animal species. The aim of this study is to assess changes in cover, richness, and diversity of native and non-native plant species following the removal of feral herbivores from San Clemente Island, California. Location: San Clemente Island, California, USA. Methods: Fourteen transects, six located in coastal sage scrub and eight in grassland vegetation, were sampled in 1986, 1988, 1990, 1992, and 2011 for ground cover for all vascular plants intercepted along each transect. Due to the inherent differences in structure and composition of coastal sage scrub and grassland vegetation types, data from the two communities were analyzed separately in the study. A repeated measures ANOVA was used to assess statistically significant differences in mean cover of growth forms (i.e., subshrubs, herbs, and vines) and individual species, percent similarity, richness, and diversity between sample periods. Additionally, mean cover over time by growth forms was differentiated by native and non-native species. I used a t-test to determine significant differences between mean native and non-native cover, species richness, and diversity within each sample year. Regression analysis was used to determine the statistical relationship between herbaceous cover and annual precipitation. Results: Mean vegetation cover of both communities varied over the course of the study period. Cover on grassland sites was increasingly dominated over time by non-native annual grasses. However, this trend was complicated by individual species' responses to variation in annual amounts of precipitation. Mean species richness and diversity values did not differ significantly over the study period. Sites of coastal sage scrub experienced a significant increase in ground cover of native subshrubs and herbs. Some non-native herbs that were common from 1986 through 1992 were non-existent on transects in 2011 while Bromus madritensis ssp. rubens, a non-native annual grass, showed a dramatic cover increase. Ground cover and compositional trends of herbs on sage scrub sites also corresponded strongly to amounts of annual precipitation. Main Conclusions: Study results indicate that non-native herbaceous cover increased at the expense of native herb cover on grassland sites following the release from grazing pressure. However, not all of the changes can be ascribed to the removal of the feral herbivores as annual precipitation amounts also influence amount of herbaceous cover of both native and non-native herbs. The sites of coastal sage scrub showed a marked increase in subshrub cover over the course of the study. Artemisia nesiotica, a native subshrub once thought to be a co-dominant on the island, has been observed over the study's course spreading from protected canyon sides into grassland areas on the island's southern half.
Download or read book Endangered Species Technical Bulletin written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild Pigs in the United States written by John J. Mayer and published by University of Georgia Press. This book was released on 2008-03-01 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an estimated population of at least 500,000 distributed across nineteen states, the wild-living pig (Sus scrofa) is the most abundant free-ranging introduced ungulate in the United States. Until now, however, little has been known about the wild pig on a national scale, despite its abundance and significance as both a pest and a game animal. Whereas previous studies have been regional in scope, Wild Pigs in the United States is the most comprehensive work available on wild pig history, current status, comparative morphology, and other subjects important to the species' management and control. The information in this volume relates to the country's three prevalent wild pig types: the introduced Eurasian wild boar, the feral (once domestic, now wild) hog, and hybrids of the two. The first section of the book presents a history of wild pigs in this country-their origins; when, where, and by whom they were first introduced; and their subsequent dispersal. John J. Mayer and I. Lehr Brisbin, Jr. then develop specific criteria, based on taxonomic principles, for differentiating between the wild pig types. Employing numerous illustrations, graphs, and tables, they analyze and compare morphometric and discrete characters of the skull, external body dimensions and proportions, coat colorations patterns, and hair structure and form. A report on the status of wild pig populations in the United States (as of 1991) completes the volume. To profile the present ranges, habitats, and morphotypic makeups of wild pigs, the authors conducted two national surveys--in 1981 and 1988--among private individuals and federal and state personnel. Their report is also based on other recent wild pig studies and additional information from survey respondents. The book's reference section is particularly valuable, for its lists all sources consulted as well as the names and addresses of authorities the authors interviewed or with whom they corresponded. Aided by the book's wealth of current data, biologists and wildlife managers can make informed decisions about such issues as state versus private ownership of wild pig populations and the status of wild pigs as pests or game animals. In addition, hunters and sportsmen, zoologists, and even specialized historians and archaeologists will find Wild Pigs in the United States useful and informative.
Download or read book California Maritime Archaeology written by Raab and published by Rowman Altamira. This book was released on 2009-08-16 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: San Clemente Island is a microcosm of California coastal archaeology from prehistoric through historic times—not only because of the extensiveness of its archaeological remains but because those remains have been so well preserved. In California Maritime Archaeology, the authors use the island as a platform to explore evidence of early seafaring, colonization, paleoenvironmental change, and cultural interaction along the California coast. They make a strong case that San Clemente island should be seen as a kind of "California archaeological Galapagos," offering an extraordinary variety of ancient life as well as surprising information about prehistoric hunter-gatherers of the northern Pacific. The authors' two decades of research have resulted in this rich cultural history that defies widespread assumptions about California's ancient maritime history.
Download or read book Federal Register written by and published by . This book was released on 2013-07 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feral Goat Foraging and Vegetation Changes on San Clemente Island California written by Jane Mary Resnick and published by . This book was released on 1988 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 102 Monitor written by and published by . This book was released on 1980 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endangered and Threatened Species Recovery Program written by Government Printing Office Staff and published by . This book was released on 1992 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Management of Terrestrial Vertebrate Invasive Species in the United States written by William C. Pitt and published by CRC Press. This book was released on 2017-10-25 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The IUCN Plant Red Data Book written by Hugh Synge and published by IUCN. This book was released on 1978 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information on 250 selected plants on a world scale.
Download or read book Feral Mammals written by and published by . This book was released on 1984 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystems of California written by Harold Mooney and published by Univ of California Press. This book was released on 2016-01-19 with total page 1009 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-anticipated reference and sourcebook for California’s remarkable ecological abundance provides an integrated assessment of each major ecosystem type—its distribution, structure, function, and management. A comprehensive synthesis of our knowledge about this biologically diverse state, Ecosystems of California covers the state from oceans to mountaintops using multiple lenses: past and present, flora and fauna, aquatic and terrestrial, natural and managed. Each chapter evaluates natural processes for a specific ecosystem, describes drivers of change, and discusses how that ecosystem may be altered in the future. This book also explores the drivers of California’s ecological patterns and the history of the state’s various ecosystems, outlining how the challenges of climate change and invasive species and opportunities for regulation and stewardship could potentially affect the state’s ecosystems. The text explicitly incorporates both human impacts and conservation and restoration efforts and shows how ecosystems support human well-being. Edited by two esteemed ecosystem ecologists and with overviews by leading experts on each ecosystem, this definitive work will be indispensable for natural resource management and conservation professionals as well as for undergraduate or graduate students of California’s environment and curious naturalists.
