Download or read book Mechanisms of Community Disassembly Along a Southern Range Boundary written by Evan Costello Wilson and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is altering and disassembling historical vertebrate communities globally. The resultant novel, no-analogue communities are operating in new and often unexpected ways. Some species are especially impacted by changing abiotic conditions, while others are more resilient yet are vulnerable to altered biotic interactions. Due to the velocity of changing climatic conditions, it can be difficult to identify the mechanisms that result in population declines for affected species retrospectively. Experimental manipulations in the field can help elucidate both proximate and ultimate drivers of population and community dynamics, as well as help to predict how climate change will alter these dynamics both directly and indirectly. My dissertation centers on an experimental translocation that repatriated a population of snowshoe hares (Lepus americanus) to a formerly occupied, but recently functionally extirpated, site in central Wisconsin. To understand the mechanisms driving snowshoe hares' range contraction and how the loss of snowshoe hares and associated community interactions have affected the remaining community members, we monitored vital rates and habitat associations of snowshoe hares and linked community members as hare densities increased and subsequently declined following repatriation. Chapter 1 examines the proximate and ultimate mechanisms that resulted in the functional extirpation of snowshoe hares along their southern range boundary. To do so, I analyzed survival and spatial data from translocated hares, and found that while hares suffer high predation during periods of camouflage mismatch, availability of large patches of high-quality habitat, specifically young aspen forest, buffers this mortality. Chapter 2 examines the effects of habitat composition, snow cover and landscape configuration on persistence and colonization of snowshoe hares using multi-season occupancy models. I show that colonization is driven by patch size of young aspen habitat and proximity to existing populations, and that these contemporary patterns are consistent with areas relictual hares occupied during historical extirpation. Finally, I provide a framework for managing timber harvest to maximize young forests and maintain hare habitat on landscapes. Chapter 3 examines the demographic consequences of hare extirpation and loss of associated biotic interactions on persisting alternative prey species sharing the same predator guild with hares by monitoring survival and recruitment in porcupines (Erethizon dorsatum) and ruffed grouse (Bonasa umbellus) with and without hares present. I show that grouse are only loosely connected to this community module, but that porcupines are linked to hares via an enemy-mediated indirect interaction. Porcupines show both direct positive effects from climate change due to declining snow cover and warmer early spring temperatures, and indirect negative effects due to increased predation on neonates driven by loss of snowshoe hares. Overall, this work shows that climate change is having varied effects on species, both direct and indirect, that will likely drive range contraction of multiple northern-adapted species along their shared southern range boundary. While habitat manipulation can be a potential stop-gap method for maintaining hares and associated biotic interactions on the landscape, long-term planning and mitigation of climate change will be necessary for conserving these communities along southern range boundaries.
Download or read book Ecosystem Collapse and Recovery written by Adrian C. Newton and published by Cambridge University Press. This book was released on 2021-04-22 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines how ecosystems can collapse as a result of human activity, and the ecological processes underlying their subsequent recovery.
Download or read book The Nature of Plant Communities written by J. Bastow Wilson and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review of the role of species interactions in the process of plant community assembly.
Download or read book Communities and Organizations written by Chris Marquis and published by Emerald Group Publishing. This book was released on 2011-11-23 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers how diverse types of communities influence organizations, as well as the associated benefit of developing an accounting for community processes in organizational theory. This title focuses on social proximity and networks that has characterized the work on communities.
Download or read book The Theory of Island Biogeography written by Robert H. MacArthur and published by Princeton University Press. This book was released on 2001 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population theory.
Download or read book Cal OSHA Pocket Guide for the Construction Industry written by and published by . This book was released on 2015-01-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cal/OSHA Pocket Guide for the Construction Industry is a handy guide for workers, employers, supervisors, and safety personnel. This latest 2011 edition is a quick field reference that summarizes selected safety standards from the California Code of Regulations. The major subject headings are alphabetized and cross-referenced within the text, and it has a detailed index. Spiral bound, 8.5 x 5.5"
Download or read book Conservation Biology for All written by Navjot S. Sodhi and published by OUP Oxford. This book was released on 2010-01-08 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation Biology for All provides cutting-edge but basic conservation science to a global readership. A series of authoritative chapters have been written by the top names in conservation biology with the principal aim of disseminating cutting-edge conservation knowledge as widely as possible. Important topics such as balancing conversion and human needs, climate change, conservation planning, designing and analyzing conservation research, ecosystem services, endangered species management, extinctions, fire, habitat loss, and invasive species are covered. Numerous textboxes describing additional relevant material or case studies are also included. The global biodiversity crisis is now unstoppable; what can be saved in the developing world will require an educated constituency in both the developing and developed world. Habitat loss is particularly acute in developing countries, which is of special concern because it tends to be these locations where the greatest species diversity and richest centres of endemism are to be found. Sadly, developing world conservation scientists have found it difficult to access an authoritative textbook, which is particularly ironic since it is these countries where the potential benefits of knowledge application are greatest. There is now an urgent need to educate the next generation of scientists in developing countries, so that they are in a better position to protect their natural resources.
Download or read book Landscape Ecology in Theory and Practice written by Monica G. Turner and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ideal text for students taking a course in landscape ecology. The book has been written by very well-known practitioners and pioneers in the new field of ecological analysis. Landscape ecology has emerged during the past two decades as a new and exciting level of ecological study. Environmental problems such as global climate change, land use change, habitat fragmentation and loss of biodiversity have required ecologists to expand their traditional spatial and temporal scales and the widespread availability of remote imagery, geographic information systems, and desk top computing has permitted the development of spatially explicit analyses. In this new text book this new field of landscape ecology is given the first fully integrated treatment suitable for the student. Throughout, the theoretical developments, modeling approaches and results, and empirical data are merged together, so as not to introduce barriers to the synthesis of the various approaches that constitute an effective ecological synthesis. The book also emphasizes selected topic areas in which landscape ecology has made the most contributions to our understanding of ecological processes, as well as identifying areas where its contributions have been limited. Each chapter features questions for discussion as well as recommended reading.
Download or read book Principles of Terrestrial Ecosystem Ecology written by F Stuart Chapin III and published by Springer Science & Business Media. This book was released on 2006-04-10 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features review questions at the end of each chapter; Includes suggestions for recommended reading; Provides a glossary of ecological terms; Has a wide audience as a textbook for advanced undergraduate students, graduate students and as a reference for practicing scientists from a wide array of disciplines
Download or read book Allelopathy written by Manuel J. Reigosa and published by Springer Science & Business Media. This book was released on 2006-02-28 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many good books in the market dealing with the subject of allelopathy. When we designed the outline of this new book, we thought that it should include as many different points of view as possible, although in an integrated general scheme. Allelopathy can be viewed from different of perspectives, ranging from the molecular to the ecosystem level, and including molecular biology, plant biochemistry, plant physiology, plant ecophysiology and ecology, with information coming also from the organic chemistry, soil sciences, microbiology and many other scientific disciplines. This book was designed to include a complete perspective of allelopathic process. The book is divided into seven major sections. The first chapter explores the international development of allelopathy as a science and next section deals with methodological aspects and it explores potential limitations of actual research. Third section is devoted to physiological aspects of allelopathy. Different specialists wrote about photosynthesis, cell cycle, detoxification processes, abiotic and biotic stress, plant secondary metabolites and respiration related to allelopathy. Chapters 13 through 16 are collectively devoted to various aspects of plant ecophysiology on a variety of levels: microorganisms, soil system and weed germination. Fundamental ecology approaches using both experimental observations and theoretical analysis of allelopathy are described in chapters 16 and 17. Those chapters deal with the possible evolutionary forces that have shaped particular strategies. In the section named “allelopathy in different environments”, authors primarily center on marine, aquatic, forest and agro ecosystems. Last section includes chapters addressing application of the knowledge of allelopathy.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1978 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Fragmentation and Landscape Change written by David B. Lindenmayer and published by Island Press. This book was released on 2013-02-22 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Habitat loss and degradation that comes as a result of human activity is the single biggest threat to biodiversity in the world today. Habitat Fragmentation and Landscape Change is a groundbreaking work that brings together a wealth of information from a wide range of sources to define the ecological problems caused by landscape change and to highlight the relationships among landscape change, habitat fragmentation, and biodiversity conservation. The book: synthesizes a large body of information from the scientific literature considers key theoretical principles for examining and predicting effects examines the range of effects that can arise explores ways of mitigating impacts reviews approaches to studying the problem discusses knowledge gaps and future areas for research and management Habitat Fragmentation and Landscape Change offers a unique mix of theoretical and practical information, outlining general principles and approaches and illustrating those principles with case studies from around the world. It represents a definitive overview and synthesis on the full range of topics that fall under the widely used but often vaguely defined term "habitat fragmentation."
Download or read book The Garter Snakes written by Douglas Athon Rossman and published by University of Oklahoma Press. This book was released on 1996 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Garter Snakes: Evolution and Ecology is the first comprehensive review of the genus Thamnophis in nearly ninety years. The book includes color plates of all species (many never previously figured in color); extensive discussion of ecology, behavior, and captive care; and a modern key to all species - as well as species-by-species summaries of the systematics and natural history of the thirty different garter snakes now recognized. Of particular interest are the descriptions of lesser-known species in Mexico. Because interest in reptiles has grown dramatically in recent years, this comprehensive guide is designed to appeal to as wide an audience as possible - to both the professional herpetologist interested in the biology of Thamnophis and the hobbyist who wants to know more about these diverse and widespread snakes, both in the home aquarium and in the wild. This up-to-date, appealing book, written by the world's leading authorities, will be extremely useful not only to herpetologists but also to conservationists, ecologists, pet owners, and other readers generally interested in natural history.
Download or read book Fire Native Peoples and the Natural Landscape written by Thomas Vale and published by Island Press. This book was released on 2013-04-16 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: For nearly two centuries, the creation myth for the United States imagined European settlers arriving on the shores of a vast, uncharted wilderness. Over the last two decades, however, a contrary vision has emerged, one which sees the country's roots not in a state of "pristine" nature but rather in a "human-modified landscape" over which native peoples exerted vast control. Fire, Native Peoples, and the Natural Landscape seeks a middle ground between those conflicting paradigms, offering a critical, research-based assessment of the role of Native Americans in modifying the landscapes of pre-European America. Contributors focus on the western United States and look at the question of fire regimes, the single human impact which could have altered the environment at a broad, landscape scale, and which could have been important in almost any part of the West. Each of the seven chapters is written by a different author about a different subregion of the West, evaluating the question of whether the fire regimes extant at the time of European contact were the product of natural factors or whether ignitions by Native Americans fundamentally changed those regimes. An introductory essay offers context for the regional chapters, and a concluding section compares results from the various regions and highlights patterns both common to the West as a whole and distinctive for various parts of the western states. The final section also relates the findings to policy questions concerning the management of natural areas, particularly on federal lands, and of the "naturalness" of the pre-European western landscape.
Download or read book Texas Snakes written by John E. Werler and published by University of Texas Press. This book was released on 2010-01-01 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the legendary, fear-inspiring Western Diamondback rattlesnake to the tiny, harmless Plains blind snake, Texas has a greater diversity of snake species than any other state in the country. Recognizing the public's need for a complete guide to identifying and understanding Texas' snakes, two of the state's most respected herpetologists have joined forces to create this definitive reference to all 109 species and sub-species of Texas snakes. Well-written species accounts describe each snake's appearance, lookalikes, size, habitat, behavior, feeding, and reproduction. The authors also include color photos and finely detailed line drawings to aid field identification, along with accurate range maps, a checklist of Texas snakes, a key to the species, and a brief discussion of classification and taxonomy. The authors round out this volume with essays on snake myths and misinformation, snakebite and its prevention, conservation, Texas biotic provinces, and a brief history of Texas herpetology.
Download or read book Community Ecology written by Gary G. Mittelbach and published by Oxford University Press. This book was released on 2019-05-24 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Community ecology has undergone a transformation in recent years, from a discipline largely focused on processes occurring within a local area to a discipline encompassing a much richer domain of study, including the linkages between communities separated in space (metacommunity dynamics), niche and neutral theory, the interplay between ecology and evolution (eco-evolutionary dynamics), and the influence of historical and regional processes in shaping patterns of biodiversity. To fully understand these new developments, however, students continue to need a strong foundation in the study of species interactions and how these interactions are assembled into food webs and other ecological networks. This new edition fulfils the book's original aims, both as a much-needed up-to-date and accessible introduction to modern community ecology, and in identifying the important questions that are yet to be answered. This research-driven textbook introduces state-of-the-art community ecology to a new generation of students, adopting reasoned and balanced perspectives on as-yet-unresolved issues. Community Ecology is suitable for advanced undergraduates, graduate students, and researchers seeking a broad, up-to-date coverage of ecological concepts at the community level.
Download or read book Biodiversity Conservation and Phylogenetic Systematics written by Roseli Pellens and published by Springer. This book was released on 2016-02-24 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about phylogenetic diversity as an approach to reduce biodiversity losses in this period of mass extinction. Chapters in the first section deal with questions such as the way we value phylogenetic diversity among other criteria for biodiversity conservation; the choice of measures; the loss of phylogenetic diversity with extinction; the importance of organisms that are deeply branched in the tree of life, and the role of relict species. The second section is composed by contributions exploring methodological aspects, such as how to deal with abundance, sampling effort, or conflicting trees in analysis of phylogenetic diversity. The last section is devoted to applications, showing how phylogenetic diversity can be integrated in systematic conservation planning, in EDGE and HEDGE evaluations. This wide coverage makes the book a reference for academics, policy makers and stakeholders dealing with biodiversity conservation.
