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Author: Paul A. Johnsgard Publisher: Smithsonian Institution ISBN: 1935623672 Category : Science Languages : en Pages : 233
Book Description
Paul Johnsgard, one of the world's leading ornithologists, has written this book as a call to action. Conservationists have seen a marked decline in the populations of North American grouse, particularly the grassland-adapted species. Unless action is taken swiftly, at least one species -- Attwater's prairie-chicken -- is certain to follow the heath hen into extinction. Johnsgard begins with the tragic history of the heath hen, which became extinct in 1932. He devotes a chapter each to the greater and lesser prairie-chickens, greater and Gunnison sage-grouse, and sharp-tailed grouse. Johnsgard argues that habitat loss and excessive hunting are major factors contributing to the decline of each species, particularly the lesser prairie-chicken and the Gunnison sage-grouse, which have been proposed for threatened federal status. This narrative history is troubling but not without hope. Johnsgard discusses places where populations exist that have yet to be preserved, and outlines the steps necessary to conserve these species. A possible future does exist for grassland grouse, and Johnsgard's book points the way toward securing it.
Author: Paul A. Johnsgard Publisher: Smithsonian Institution ISBN: 1935623672 Category : Science Languages : en Pages : 233
Book Description
Paul Johnsgard, one of the world's leading ornithologists, has written this book as a call to action. Conservationists have seen a marked decline in the populations of North American grouse, particularly the grassland-adapted species. Unless action is taken swiftly, at least one species -- Attwater's prairie-chicken -- is certain to follow the heath hen into extinction. Johnsgard begins with the tragic history of the heath hen, which became extinct in 1932. He devotes a chapter each to the greater and lesser prairie-chickens, greater and Gunnison sage-grouse, and sharp-tailed grouse. Johnsgard argues that habitat loss and excessive hunting are major factors contributing to the decline of each species, particularly the lesser prairie-chicken and the Gunnison sage-grouse, which have been proposed for threatened federal status. This narrative history is troubling but not without hope. Johnsgard discusses places where populations exist that have yet to be preserved, and outlines the steps necessary to conserve these species. A possible future does exist for grassland grouse, and Johnsgard's book points the way toward securing it.
Author: Brett K. Sandercock Publisher: Univ of California Press ISBN: 0520270061 Category : Medical Languages : en Pages : 376
Book Description
"Summarizing current knowledge of grouse biology, this volume is organized in four sections--spatial ecology, habitat relationships, population biology, and conservation and management--and offers insights into spatial requirements, movements, and demography of grouse. Much of the research employs emerging tools in ecology that span biogeochemistry, molecular genetics, endocrinology, radio-telemetry, and remote sensing".--Adapted from publisher descrip tion on back cover
Author: Brett K. Sandercock Publisher: Univ of California Press ISBN: 0520950577 Category : Science Languages : en Pages : 746
Book Description
Grouse—an ecologically important group of birds that include capercaillie, prairie chickens, and ptarmigan—are distributed throughout the forests, grasslands, and tundra of Europe, Asia, and North America. Today, many grouse populations are in decline, and the conservation and management of these charismatic birds is becoming a global concern. This volume summarizes current knowledge of grouse biology in 25 chapters contributed by 80 researchers from field studies around the world. Organized in four sections—Spatial Ecology, Habitat Relationships, Population Biology, and Conservation and Management—the chapters offer important insights into spatial requirements, movements, and demography of grouse. Much of the research employs emerging tools in ecology that span biogeochemistry, molecular genetics, endocrinology, radio-telemetry, and remote sensing. The chapters explore topics including the impacts of climate change, energy development, and harvest, and give new evidence for life-history changes in response to human activities.
Author: Paul Johnsgard Publisher: Lulu.com ISBN: 1609620879 Category : Nature Languages : en Pages : 177
Book Description
The ten currently recognized species of grouse in North America have played an important role in America's history, from the famous but ill-fated heath hen, a primary source of meat for the earliest New England immigrants, to the ruffed grouse, currently one of the most abundant and soughtafter upland game birds in more than 40 states and provinces. This book summarizes the ecology, reproductive biology, and social behavior of all ten of the extant North American grouse species. It also describes the current status of grouse populations, some of which are perilously close to extinction. The social behavior of grouse is of special biological interest because among these ten species there is a complete mating system spectrum, from seasonally monogamous pair-bonding to highly promiscuous mating patterns. The latter group illustrates the strong structural and behavioral effects of sexual selection resulting from nonmonogamous mating. These influences reach a peak in the development by some grouse species of engaging in mating "leks," arena-like competitions performed by males while attempting to attract fertile females, and also provide opportunities for females to select optimum mating partners. These sexual competitions also promote strong differences evolving in sexual signaling behaviors ("displays") among closely related species. Nevertheless, a relatively high incidence of mating errors and resulting hybridization often occurs in spite of these marked behavioral differences. In addition to a text of 101,000 words, the book includes 16 range maps, 37 line drawings, and 38 photographs by the author, as well as nearly 1,400 literature citations.
Author: Kathy Love Publisher: ISBN: 9780984000739 Category : Nature Languages : en Pages : 180
Book Description
Richly illustrated with photographs by award-winning nature photographer Noppadol Paothong, and accompanied by the text of accomplished natural history writer Kathy Love, this book tells the story of the sage-grouse, its habitat in the vast Sagebrush Sea of the Intermountain West, and the threats faced by both. Although the sage-grouse once flourished in many Western US states and provinces of Canada, in the past century its populations have diminished drastically. Today, fewer than 400,000 sage-grouse remain, and conservative legislation challenging the preservation of public wild lands increasingly threatens the sage- grouse. This book is designed not only to build awareness on the issues threatening the sage-grouse, but to stimulate and inspire readers to join the fight for environmental conservation and wilderness preservation. Bird lovers, nature enthusiasts, and residents of the American West will delight in viewing the beauty of the sage-grouse and emerge with a deeper sense of the many interests affecting the sagebrush ecosystem and the conservation efforts being implemented. This book is one of the most visually stunning and comprehensive documentations of one of the most iconic species of the United States, great for Bird lovers, nature enthusiasts, students, and residents of the American West.
Author: Lance B. McNew Publisher: Springer Nature ISBN: 303134037X Category : Science Languages : en Pages : 1017
Book Description
This open access book reviews the importance of ecological functioning within rangelands considering the complex inter-relationships of production agriculture, ecosystem services, biodiversity, and wildlife habitat. More than half of all lands worldwide, and up to 70% of the western USA, are classified as rangelands—uncultivated lands that often support grazing by domestic livestock. The rangelands of North America provide a vast array of goods and services, including significant economic benefit to local communities, while providing critical habitat for hundreds of species of fish and wildlife. This book provides compendium of recent data and synthesis from more than 100 experts in wildlife and rangeland ecology in Western North America. It provides a current and in-depth synthesis of knowledge related to wildlife ecology in rangeland ecosystems, and the tools used to manage them, to serve current and future wildlife biologists and rangeland managers in the working landscapes of the West. The book also identifies information gaps and serves as a jumping-off point for future research of wildlife in rangeland ecosystems. While the content focuses on wildlife ecology and management in rangelands of Western North America, the material has important implications for rangeland ecosystems worldwide.
Author: Michael Alan Hardy Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Open habitats such as grassland, shrubland, and savannah, despite harboring numerous threatened and endemic species, have suffered greatly from habitat loss and the disruption of natural disturbance regimes. Due to increasing residential expansion and agricultural intensification, managers are frequently limited to managing small, isolated populations of grassland-dependent species persisting in a matrix of inhospitable habitat. Prairie grouse (Tympanuchus spp.) are an umbrella species for the conservation of open habitats, but contemporary assessments of prairie grouse responses to land use and management in the Great Lakes region are comparatively rare. In this dissertation, I address this gap in knowledge by providing quantitative assessments of population reinforcement and responses to habitat management practices and landscape disturbance in populations of Greater Prairie-Chickens (T. cupido) and Sharp-tailed Grouse (T. phasianellus) in Wisconsin, USA. I found that population reinforcement for prairie-chickens was most effective at reducing site-specific extinction probability and increasing the number of extant sites when more vulnerable populations were targeted for reinforcement, whereas reinforcing the most stable populations caused the greatest reductions in regional extinction probability. In all cases, the number of translocated hens was a poor predictor of changes in long-term viability, but earlier onset of translocations promoted the greatest increases in population viability. Within populations, prairie-chickens selected grassland over other cover types, but selection or avoidance of common management practices (e.g., grazing, burning) varied among life-history stages. Similarly, hen, nest, and brood survival rates were influenced by different management practices. Few factors were associated with both habitat selection and survival during the same life-history stage and these relationships were often contradictory, suggesting the presence of ecological traps in managed grasslands. Several management practices selected during one life-history stage were associated with survival during a different life-history stage, but these relationships involved trade-offs between selection and survival. Finally, sharptail occupancy was higher in landscapes containing a greater proportion of disturbed forest and less agriculture, but the relative importance of landscape characteristics differed among spatial scales: agriculture and older disturbance had a stronger influence on occupancy at larger scales, whereas recent disturbance had the greatest influence at smaller scales.
Author: Paul A. Johnsgard
Author: Paul A. Johnsgard
Author: Brett K. Sandercock
Author: Paul A. Johnsgard
Author: Joel M. Vance
Author: Brett K. Sandercock
Author: Paul Johnsgard
Author: Paul D. Goriup
Author: Kathy Love
Author: Lance B. McNew
Author: Michael Alan Hardy