Download or read book Dispersal of Whitebark Pine Seeds by Clark s Nutcrackers a Mutualism Hypothesis written by D. F. Tomback and published by . This book was released on 1982 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings Symposium on Whitebark Pine Ecosystems written by and published by . This book was released on 1990 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Whitebark Pine Communities written by Diana F. Tomback and published by Island Press. This book was released on 2001 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whitebark pine is a dominant feature of western high-mountain regions, offering an important source of food and high-quality habitat for species ranging from Clark's nutcracker to the grizzly bear. But in the northwestern United States and southwestern Canada, much of the whitebark pine is disappearing. Why is a high-mountain species found in places rarely disturbed by humans in trouble? And what can be done about it.Whitebark Pine Communities addresses those questions, explaining how a combination of altered fire regimes and fungal infestation is leading to a rapid decline of this once abundant -- and ecologically vital -- species. Leading experts in the field explain what is known about whitebark pine communities and their ecological value, examine its precarious situation, and present the state of knowledge concerning restoration alternatives. The book. presents an overview of the ecology and status of whitebark pine communities offers a basic understanding of whitebark pine taxonomy, distribution, and ecology, including environmental tolerances, community disturbance processes, regeneration processes, species interactions, and genetic population structure identifies the threats to whitebark pine communities explains the need for management intervention surveys the extent of impact and losses to dateMore importantly, the book clearly shows that the knowledge and management tools are available to restore whitebark pine communities both locally and on a significant scale regionally, and it provides specific information about what actions can and must be taken.Whitebark Pine Communities offers a detailed portrait of the ecology of whitebark pine communities and the current threats to them. It brings together leading experts to provide in-depth information on research needs, management approaches, and restoration activities, and will be essential reading for ecologists, land managers, and anyone concerned with the health of forest ecosystems in the western United States.

Download or read book A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark s Nutcracker and Pine Squirrels written by Teresa J. Lorenz and published by . This book was released on 2008 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whitebark pine is a critical component of subalpine ecosystems in western North America, where it contributes to biodiversity and ecosystem function and in some communities is considered a keystone species. Whitebark pine is undergoing rangewide population declines attributed to the combined effects of mountain pine beetle, white pine blister rust, and fire suppression. The restoration and maintenance of whitebark pine populations require an understanding of all aspects of seed fate. In this paper, we review the literature on seed dispersal in whitebark pine. Clark's nutcracker, pine squirrels, and scatter-hoarding rodents are all known to influence whitebark pine seed fate and ultimately affect the ability of whitebark pine populations to regenerate. We also provide a general overview of the natural histories of the most influential species involved with whitebark pine seed fate: Clark's nutcracker and the pine squirrel.

Download or read book Silvics of North America Conifers written by Russell M. Burns and published by . This book was released on 1990 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silvics of North America written by Russell M. Burns and published by . This book was released on 1990 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Coevolutionary Process written by John N. Thompson and published by University of Chicago Press. This book was released on 2009-04-24 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditional ecological approaches to species evolution have frequently studied too few species, relatively small areas, and relatively short time spans. In The Coevolutionary Process, John N. Thompson advances a new conceptual approach to the evolution of species interactions—the geographic mosaic theory of coevolution. Thompson demonstrates how an integrated study of life histories, genetics, and the geographic structure of populations yields a broader understanding of coevolution, or the development of reciprocal adaptations and specializations in interdependent species. Using examples of species interactions from an enormous range of taxa, Thompson examines how and when extreme specialization evolves in interdependent species and how geographic differences in specialization, adaptation, and the outcomes of interactions shape coevolution. Through the geographic mosaic theory, Thompson bridges the gap between the study of specialization and coevolution in local communities and the study of broader patterns seen in comparisons of the phylogenies of interacting species.

Download or read book Grizzly Bear Recovery in the Bitterroot Ecosystem written by and published by . This book was released on 1997 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology and Management of Larix Forests written by and published by . This book was released on 1995 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings Symposium On Fire In Wilderness and Park Management U S Department Of Agriculture September 1995 written by and published by . This book was released on 1995 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Underwater Methods for Study of Salmonids in the Intermountain West written by Russell F. Thurow and published by . This book was released on 1994 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by James K. Brown and published by DIANE Publishing. This book was released on 1996-07 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This symposium, held one decade after Missoula Montana's first major wilderness fire conference, examined past lessons & future opportunities. The 75 presentations & discussions were centered around three major themes: are goals & policies being met; understanding & managing constraints; & implementing programs & future opportunities. Broken down into four major sections: goals & policies; constraints & solutions; programs & future opportunities; & posters. Maps, charts & tables.

Download or read book General Technical Report INT written by and published by . This book was released on 1995 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary of Technical Testimony in the Colorado Water Division 1 Trial written by Nancy D. Gordon and published by . This book was released on 1995 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biology of Mutualism written by Douglas H. Boucher and published by New York : Oxford University Press. This book was released on 1985 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The view of nature as `red in tooth and claw', as a jungle in which competition and predation are the predominant themes, has long been important in both the scientific and popular literature. However, in the past decade another view has become widespread among ecologists: the idea that mutualisms--mutually beneficial interactions between species--are just as important as competition and predation. This book is one of the first to explore this theme. Ideas and theories applicable to all sorts of mutualisms are presented and, where appropriate, examined in the light of concrete data. Themes explored include: the organisms involved, both animal and plant; how specializations evolved once mutualisms formed; how mutualisms affect population dynamics and community structure; and the role of mutualisms in different environments. The book will be of special interest to ecologists and a wide range of biologists.

Download or read book Proceedings written by and published by . This book was released on 1984 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Food Hoarding in Animals written by Stephen B. Vander Wall and published by University of Chicago Press. This book was released on 1990-07-10 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this first comprehensive synthesis of the literature on food hoarding in animals, Stephen B. Vander Wall discusses how animals store food, how they use food and how this use affects individual fitness, why and how food hoarding evolved, how cached food is lost, mechanisms for protecting and recovering cached food, physiological and behavioral factors that influence hoarding, and the impact that hoarding animals have on plant populations and plant dispersal. He then provides detailed coverage of hoarding behavior across taxa—mammals, birds, and arthropods—to address issues in evolution, ecology, and behavior. Drawings, photographs, and appendixes document complex and intrinsically interesting food-hoarding behaviors, and the bibliography of nearly 1,500 sources is itself an invaluable and unique reference.