Black-tailed Prairie Dog (cynomys Ludovicianus) Response to Human Intrusion and Urban Development in the Colorado Front Range
Author: Seth Magle
Publisher:
Published: 2003
Total Pages: 144
ISBN-13:
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Conservation of the Black-Tailed Prairie Dog
Author: John Hoogland
Publisher: Island Press
Published: 2013-04-09
Total Pages: 368
ISBN-13: 1597268526
DOWNLOAD EBOOKThe prairie dog is a colonial, keystone species of the grassland ecosystem of western North America. Myriad animals regularly visit colony-sites to feed on the grass there, to use the burrows for shelter or nesting, or to prey on the prairie dogs. Unfortunately, prairie dogs are disappearing, and the current number is only about 2% of the number encountered by Lewis and Clark in the early 1800s. Part I of Conservation of the Black-Tailed Prairie Dog summarizes ecology and social behavior for pivotal issues such as when prairie dogs breed, how far they disperse, how they affect other organisms, and how much they compete with livestock. Part II documents how loss of habitat, poisoning, plague, and recreational shooting have caused the precipitous decline of prairie dog populations over the last 200 years. Part III proposes practical solutions that can ensure the long-term survival of the prairie dog and its grassland ecosystem, and also are fair to private landowners. We cannot expect farmers and ranchers to bear all the costs of conservation while the rest of us enjoy all the benefits. With 700 references, 37 tables, 75 figures and photographs, and a glossary, Conservation of the Black-Tailed Prairie Dog is a unique and vital contribution for wildlife managers, politicians, environmentalists, and curious naturalists.
Applying Ecological Principles to Land Management
Author: Virginia H. Dale
Publisher: Springer Science & Business Media
Published: 2001-07-20
Total Pages: 376
ISBN-13: 9780387951003
DOWNLOAD EBOOKThis volume incorporates case studies that explore past and current land use decisions on both public and private lands, and includes practical approaches and tools for land use decision-making. The most important feature of the book is the linking of ecological theory and principle with applied land use decision-making. The theoretical and empirical are joined through concrete case studies of actual land use decision-making processes.
Animal Dispersal
Author: N.C. Stenseth
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 359
ISBN-13: 9401123381
DOWNLOAD EBOOK4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Animal Communication and Noise
Author: Henrik Brumm
Publisher: Springer Science & Business Media
Published: 2013-12-16
Total Pages: 452
ISBN-13: 364241494X
DOWNLOAD EBOOKThe study of animal communication has led to significant progress in our general understanding of motor and sensory systems, evolution, and speciation. However, one often neglected aspect is that signal exchange in every modality is constrained by noise, be it in the transmission channel or in the nervous system. This book analyses whether and how animals can cope with such constraints, and explores the implications that noise has for our understanding of animal communication. It is written by leading biologists working on different taxa including insects, fish, amphibians, lizards, birds, and mammals. In addition to this broad taxonomic approach, the chapters also cover a wide array of research disciplines: from the mechanisms of signal production and perception, to the behavioural ecology of signalling, the evolution of animal communication, and conservation issues. This volume promotes the integration of the knowledge gained by the diverse approaches to the study of animal communication and, at the same time, highlights particularly interesting fields of current and future research.
Biotic Homogenization
Author: Julie L. Lockwood
Publisher: Springer Science & Business Media
Published: 2001-05-31
Total Pages: 312
ISBN-13: 9780306465420
DOWNLOAD EBOOKBiological homogenization is the dominant process shaping the future global biosphere. As global transportation becomes faster and more frequent, it is inevitable that biotic intermixing will increase. Unique local biotas will become extinct only to be replaced by already widespread biotas that can tolerate human activities. This process is affecting all aspects of our world: language, economies, and ecosystems alike. The ultimate outcome is the loss of uniqueness and the growth of uniformity. In this way, fast food restaurants exist in Moscow and Java Sparrows breed on Hawaii. Biological homogenization qualifies as a global environmental catastrophe. The Earth has never witnessed such a broad and complete reorganization of species distributions.
Biology and Conservation of Freshwater Cetaceans in Asia
Author: Randall R. Reeves
Publisher: World Conservation Union
Published: 2000
Total Pages: 0
ISBN-13: 9782831705132
DOWNLOAD EBOOKThis compilation brings together current information on the status of Asian freshwater cetacean populations, the factors that have caused their recent declines, and what can be done to improve their chances for survival. Includes papers on water development issues, the Yangtze River Dolphin (Baiji), the Ganges River Dolphin (Susu), and porpoises. In the final section, five papers address methods of studying freshwater cetaceans.
Scientific Investigations Report
Author: Sharon E. Kroening
Publisher:
Published: 2004
Total Pages: 122
ISBN-13:
DOWNLOAD EBOOKWild Animals of North America
Author: Edward William Nelson
Publisher: DigiCat
Published: 2022-08-15
Total Pages: 319
ISBN-13:
DOWNLOAD EBOOKDigiCat Publishing presents to you this special edition of "Wild Animals of North America" (Intimate Studies of Big and Little Creatures of the Mammal Kingdom) by Edward William Nelson. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.
Grasslands of the World
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
Published: 2005
Total Pages: 548
ISBN-13: 9789251053379
DOWNLOAD EBOOKThis book brings together information on the contrasting characteristics, condition, present use and problems of the world's main natural grasslands. Since grassland is commercialized through the grazing animal, particular attention is paid to the livestock production systems associated with each main type. Grazing resources are more than simply edible herbage: many other factors have to be taken into account, notably water in all areas, and shelter in winter-cold climates. Seasonality of forage supply is a characteristic of almost all grazing lands, so the strategies for dealing with lean seasons are described. The main problems of each type are mentioned and possible strategies for their sustainable management discussed - taking into account their multiple functions, not only livestock production. The book is primarily aimed at agricultural scientists, educationalists, extensionists and decision-makers with interests in responsible use of extensive grasslands.
