Population Ecology and Monitoring of the Endangered Devils Hole Pupfish PDF Download
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Author: Maria Christina Dzul
Publisher:
ISBN:
Category : Devils Hole (Nev.)
Languages : en
Pages : 118
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Book Description
The federally endangered Devils Hole pupfish, Cyprinodon diabolis, is endemic to Devils Hole, a limestone cavern adjacent to Ash Meadows National Wildlife Refuge in Nye County, Nevada. Sampling of the Devils Hole pupfish must be non-obtrusive, thereby limiting researchers to visual observation methods. This thesis assesses current monitoring efforts of Devils Hole pupfish with the goal of improving trend detection. In addition, a population model is constructed from monthly length-frequency distributions with the dual goal of increasing understanding of Devils Hole pupfish life history characteristics and identifying vulnerable Devils Hole pupfish life history stages. This thesis is composed of three chapters. Specifically, suspected sources of error in SCUBA surveys of adult Devils Hole pupfish were evaluated in the first chapter. In the second chapter, statistical power was used to assess sampling effort allocation (e.g., the number of samples, subsamples, and sub-subsamples) for surveys of larval Devils Hole pupfish. Patterns of Devils Hole pupfish survival, growth, and recruitment were evaluated after constructing a simulation model from length-frequency distributions in the third chapter. The ability to detect trends in population abundance, together with a greater understanding of Devils Hole pupfish population dynamics, will help Devils Hole pupfish conservation by allowing managers develop testable hypotheses and evaluate management actions.
Author: Maria Christina Dzul
Publisher:
ISBN:
Category : Devils Hole (Nev.)
Languages : en
Pages : 118
Get Book Here
Book Description
The federally endangered Devils Hole pupfish, Cyprinodon diabolis, is endemic to Devils Hole, a limestone cavern adjacent to Ash Meadows National Wildlife Refuge in Nye County, Nevada. Sampling of the Devils Hole pupfish must be non-obtrusive, thereby limiting researchers to visual observation methods. This thesis assesses current monitoring efforts of Devils Hole pupfish with the goal of improving trend detection. In addition, a population model is constructed from monthly length-frequency distributions with the dual goal of increasing understanding of Devils Hole pupfish life history characteristics and identifying vulnerable Devils Hole pupfish life history stages. This thesis is composed of three chapters. Specifically, suspected sources of error in SCUBA surveys of adult Devils Hole pupfish were evaluated in the first chapter. In the second chapter, statistical power was used to assess sampling effort allocation (e.g., the number of samples, subsamples, and sub-subsamples) for surveys of larval Devils Hole pupfish. Patterns of Devils Hole pupfish survival, growth, and recruitment were evaluated after constructing a simulation model from length-frequency distributions in the third chapter. The ability to detect trends in population abundance, together with a greater understanding of Devils Hole pupfish population dynamics, will help Devils Hole pupfish conservation by allowing managers develop testable hypotheses and evaluate management actions.
Author: Kevin C. Brown
Publisher: University of Nevada Press
ISBN: 1647790115
Category : Nature
Languages : en
Pages : 242
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Book Description
Cyprinodon diabolis, or Devils Hole pupfish: a one-inch-long, iridescent blue fish whose only natural habitat is a ten-by-sixty-foot pool near Death Valley, on the Nevada-California border. The rarest fish in the world. As concern for the future of biodiversity mounts, Devils Hole Pupfish asks how a tiny blue fish—confined to a single, narrow aquifer on the edge of Death Valley National Park in Nevada’s Amargosa Desert—has managed to survive despite numerous grave threats. For decades, the pupfish has been the subject of heated debate between environmentalists intent on protecting it from extinction and ranchers and developers in the region who need the aquifer’s water to support their livelihoods. Drawing on archival detective work, interviews, and a deep familiarity with the landscape of the surrounding Amargosa Desert, author Kevin C. Brown shows how the seemingly isolated Devils Hole pupfish has persisted through its relationships with some of the West’s most important institutions: federal land management policy, western water law, ecological sciences, and the administration of endangered-species legislation. The history of this entanglement between people and the pupfish makes its story unique. The species was singled out for protection by the National Park Service, made one of the first “listed” endangered species, and became one of the first controversial animals of the modern environmental era, with one bumper sticker circulating in Nevada in the early 1970s reading “Save the Pupfish,” while another read “Kill the Pupfish.” But the story of the pupfish should be considered for more than its peculiarity. Moreover, Devils Hole Pupfish explores the pupfish’s journey through modern American history and offers lessons for anyone looking to better understand the politics of water in southern Nevada, the operation of the Endangered Species Act, or the science surrounding desert ecosystems.
Author:
Publisher:
ISBN:
Category : Devils Hole pupfish
Languages : en
Pages : 94
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Book Description
Author: Don W. Sada
Publisher:
ISBN:
Category : Ash Meadows, Nye County, Nevada
Languages : en
Pages : 148
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Book Description
Author: Devil's Hole Pupfish Recovery Team
Publisher:
ISBN:
Category : Devils Hole pupfish
Languages : en
Pages : 46
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Book Description
Author:
Publisher:
ISBN:
Category : Devils Hole pupfish
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 540
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Book Description
Author: David L. Propst
Publisher: University of Chicago Press
ISBN: 022669450X
Category : Science
Languages : en
Pages : 465
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Book Description
North American deserts—lands of little water—have long been home to a surprising diversity of aquatic life, from fish to insects and mollusks. With European settlement, however, water extraction, resource exploitation, and invasive species set many of these native aquatic species on downward spirals. In this book, conservationists dedicated to these creatures document the history of their work, the techniques and philosophies that inform it, and the challenges and opportunities of the future. A precursor to this book, Battle Against Extinction, laid out the scope of the problem and related conservation activities through the late 1980s. Since then, many nascent conservation programs have matured, and researchers have developed new technologies, improved and refined methods, and greatly expanded our knowledge of the myriad influences on the ecology and dynamics of these species. Standing between Life and Extinction brings the story up to date. While the future for some species is more secure than thirty years ago, others are less fortunate. Calling attention not only to iconic species like the razorback sucker, Gila trout, and Devils Hole pupfish, but also to other fishes and obscure and fascinating invertebrates inhabiting intermittent aquatic habitats, this book explores the scientific, social, and political challenges of preserving these aquatic species and their habitats amid an increasingly charged political discourse and in desert regions characterized by a growing human population and rapidly changing climate.
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 570
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Book Description
Author: Walter Dodds
Publisher: Academic Press
ISBN: 0128132566
Category : Science
Languages : en
Pages : 998
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Book Description
Freshwater Ecology, Third Edition, covers everything from the basic chemical and physical properties of water, to the advanced and unifying concepts of community ecology and ecosystem relationships found in continental waters. Giving students a solid foundation for both courses and future fieldwork, and updated to include key issues, including how to balance ecological and human health needs, GMOs, molecular tools, fracking, and a host of other environmental issues, this book is an ideal resource for both students and practitioners in ecology and related fields. Provides an updated revision of this classic text, covering both basic scientific concepts and environmental applications Includes additional biography boxes with greater cultural diversity of the featured scientists Covers expanded content on developing nations, ecosystem goods and services, properties of water, global change, impacts of fracking, molecular tools for classification and identification of aquatic organisms, a discussion of emergent diseases and aquatic habitats, and more
