Download or read book Direct and Indirect Effects of White tailed Deer Odocoileus Virginianus Herbivory on Beetle and Spider Assemblages in Northern Wisconsin written by Elizabeth J. Sancomb and published by . This book was released on 2014 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: White-tailed deer directly impact vegetation structure and species composition through selective foraging, and indirectly impact other species by altering habitat, food-web interactions, and microclimate. I examined the direct effects of deer exclusion on vegetation communities, and indirect effects on beetle, spider, and web-building spider (WBS) assemblages. Forb and woody plant percent cover were higher in exclosures, while graminoid cover was higher in controls. There were no differences in beetle and spider assemblages between browsed and protected areas. The absence of differences could be attributed to legacy effects, or alternatively high vagility of individuals. WBS assemblages were more abundant and diverse in protected areas, reflecting differences in web site availability and litter depth. This suggests indirect effects of deer alter arthropod assemblages. Through selective feeding, deer act as ecosystem engineers. They are indirectly changing the WBS assemblages in this area, and may be changing beetle and spider assemblage composition.
Download or read book Interactions of White tailed Deer Abundance and Environment Affect Plant Community Composition in Northern Hardwood Forests written by Autumn E. Sabo and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ungulates are widely regarded as keystone herbivores and ecosystem engineers in ecosystems around the world. In forests of eastern North America, white-tailed deer (Odocoileus virginianus) can directly affect the presence, abundance, and reproductive success of many plant species via herbivory. Moreover, the direct effects of herbivory, along with the impacts of associated deer activities, may perturb the forest understory environment by altering the availability of understory light and soil resources. I used deer exclosures and motion-sensitive video cameras to explore the consequences of differing population densities of deer on understory environmental conditions, community composition, and interactions between deer, the environment and vegetation. I focused on several deer-mediated environmental factors including sapling abundance, light availability, soil compaction and thickness of the soil E horizon, in addition to other site characteristics including overstory cover and soil texture and chemistry. My three projects included a total of nine study sites that were scattered across northern Wisconsin and the Upper Peninsula of Michigan, USA, primarily in northern hardwood forests dominated by Acer saccharum. Across my study areas, herbivory was concentrated on woody regeneration within easy reach of deer. Environmental modifications wrought by deer browsing, such as higher light availability, soil compaction and thickness of the soil E horizon layer, affected the richness and abundance of native tree seedlings, shrubs and herbs, often in species-specific manners, and encouraged invasion by exotic species. Thus, I suggest a reexamination of the common assumption that understory community shifts in response to changes in deer abundance stem primarily from tissue removal and encourage further investigation of indirect mechanisms mediated by deer. Direct and indirect effects of abundant deer appeared to act in concert to diminish the efficacy of environmental variation to drive community heterogeneity, or the realized niche. With reduced deer abundance, particularly where overstory basal area was low, tree species richness increased. Such results provide evidence that silvicultural treatments like gap creation, in conjunction with deer control, can help reverse biotic homogenization of forest communities.
Download or read book The Effects of Herbivory by White tailed Deer Odocoileus Virginianus on the Survival and Distribution of Native Wildflowers written by Jack Darl Fletcher and published by . This book was released on 1999 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Year round Supplemental Feeding of White tailed Deer on Plant Community Dynamics written by Beau Navarre and published by . This book was released on 2021 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplemental feeding is commonly practiced to enhance available nutrition for white-tailed deer (Odocoileus virginianus). The effects of supplemental feeding on the surrounding vegetative community may be related to herbivory, trampling, and seed dispersal. I evaluated how these potential mechanisms affect vegetative communities using a matched-pair design (fed and ecologically equivalent unfed sites) during 2018-2020. In a short-term manipulative portion of the study, I sampled the vegetation prior to feeding and during two years of feeding. In a long-term retrospective study, I sampled feeders established 5-7 years previously. Feeders increased daily detection rate of deer and seed dispersing non-target wildlife, percentage of browsed plants, bare ground, and seed deposition. Plant communities diverged increasingly more from year 1 through years 5-7. Supplemental feeding directly affects local understory plant communities due to increased herbivory and trampling, while seed dispersal by non-target wildlife and increased bare ground may facilitate invasion of non-desirable plant species.
Download or read book Assessing the Effects of White tailed Deer Odocoileus Virginianus on the Oak Savanna written by Amanda Kuntz and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Combined Effects of White tailed Deer and Exotic Earthworms on Understory Plant Communities in Northeast Ohio written by Ryan John Trimbath and published by . This book was released on 2014 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Temperate forests of North America are being altered by the combined effects of two ecosystem engineers: white-tailed deer, Odocoileus virginianus, and exotic earthworm species from Europe and Asia. The intense pressure of herbivory from white-tailed deer alters the structure, abundance and diversity of plants in the forest understory. Exotic earthworm invasion can dramatically change the physical and chemical attributes of forest soils, altering plant-soil interactions which can facilitate changes in understory plant communities. Here we have used a deer exclosure study to isolate the impacts of white-tailed deer from those of exotic earthworms in order to better understand how they interact in shaping temperate forest plant communities. Results confirm that deer can dramatically reduce the abundance, richness and diversity of native plants. Contrary to past studies we found no evidence that exotic earthworms themselves reduce native plant abundance or diversity. Exotic earthworms are shown to alter the plant community through the loss of specialist species which are replaced by generalist and exotic species. This is the first in situ study of exotic earthworms in temperate forests to account for deer impacts and identify the unique and aspects of exotic earthworm on forest plant communities. The combined effects of these engineering species can dramatically alter the forest plant community and pose a formidable threat to the conservation of biodiversity.
Download or read book White tailed Deer Odocoileus Virginianus Zimmerman Manipulation and Its Effect on the Lone Star Tick Amblyomma Americanum Linnaeus written by John Scott Armstrong and published by . This book was released on 1985 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Towards a sustainable participatory and inclusive wild meat sector written by Coad, L. and published by CIFOR. This book was released on 2019-01-30 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The meat of wild species, referred to in this report as ‘wild meat’, is an essential source of protein and a generator of income for millions of forest-living communities in tropical and subtropical regions. However, unsustainable harvest rates currently
Download or read book Costa Rican Ecosystems written by Maarten Kappelle and published by University of Chicago Press. This book was released on 2016-04-15 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1502, Christopher Columbus named Costa Rica, and while gold and silver never materialized to justify the moniker of rich coast in purely economic terms, scientists and ecotravelers alike have long appreciated its incredible wealth. Wealth in Costa Rica is best measured by its biodiversityhome to a dizzying number of plants and animals, many endemic, it s a country that has long encouraged and welcomed researchers from the world over, and is exemplary in the creation and commitment to indigenous conservation and management programs. Costa Rica is considered to have the best preserved natural resources in Latin America. Approximately nine percent (about 1,000,000 acres) of Costa Rica has been protected in 15 national parks, and a comparable amount of land is protected as wildlife refuges, forest reserves or Indian reservations. This long-awaited synthesis of Costa Rican ecosystems is an authoritative presentation of the paleoecology, biogeography, structure, conservation, and sustainable use of Costa Rica s ecosystems. It systematically covers the entire range of Costa Rica s natural and managed, terrestrial, freshwater and marine ecosystems, including its island systems (Cocos Islands), the Atlantic and Pacific oceans and shores (coasts, coral reefs, mangrove forests), its lowlands (dry, season and wet forests), its highlands (the northern volcanoes and southern Talamanca s), and its estuaries, rivers, lakes, swamps and bogs. The volume s integrated, comprehensive format will be welcomed by tropical and temperate biologists alike, by biogeographers, plant and animal ecologists, marine biologists, conservation biologists, foresters, policy-makers and all scientists, natural history specialists and all with an interest in Costa Rica s ecosystems."
Download or read book Environmental Effects of Conservation Practices on Grazing Lands written by and published by . This book was released on 2006 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Deer Biology written by and published by . This book was released on 2006 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Fragmented Landscapes written by Sharon K. Collinge and published by JHU Press. This book was released on 2009-06 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ask airline passengers what they see as they gaze out the window, and they will describe a fragmented landscape: a patchwork of desert, woodlands, farmlands, and developed neighborhoods. Once-contiguous forests are now subdivided; tallgrass prairies that extended for thousands of miles are now crisscrossed by highways and byways. Whether the result of naturally occurring environmental changes or the product of seemingly unchecked human development, fractured lands significantly impact the planet’s biological diversity. In Ecology of Fragmented Landscapes, Sharon K. Collinge defines fragmentation, explains its various causes, and suggests ways that we can put our lands back together. Researchers have been studying the ecological effects of dismantling nature for decades. In this book, Collinge evaluates this body of research, expertly synthesizing all that is known about the ecology of fragmented landscapes. Expanding on the traditional coverage of this topic, Collinge also discusses disease ecology, restoration, conservation, and planning. Not since Richard T. T. Forman's classic Land Mosaics has there been a more comprehensive examination of landscape fragmentation. Ecology of Fragmented Landscapes is critical reading for ecologists, conservation biologists, and students alike.
Download or read book The Vanishing Present written by Donald M. Waller and published by University of Chicago Press. This book was released on 2009-08-01 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Straddling temperate forests and grassland biomes and stretching along the coastline of two Great Lakes, Wisconsin contains tallgrass prairie and oak savanna, broadleaf and coniferous forests, wetlands, natural lakes, and rivers. But, like the rest of the world, the Badger State has been transformed by urbanization and sprawl, population growth, and land-use change. For decades, industry and environment have attempted to coexist in Wisconsin—and the dynamic tensions between economic progress and environmental protection makes the state a fascinating microcosm for studying global environmental change. The Vanishing Present brings together a distinguished set of contributors—including scientists, naturalists, and policy experts—to examine how human pressures on Wisconsin’s changing lands, waters, and wildlife have redefined the state’s ecology. Though they focus on just one state, the authors draw conclusions about changes in temperate habitats that can be applied elsewhere, and offer useful insights into future of the ecology, conservation, and sustainability of Wisconsin and beyond. A fitting tribute to the home state of Aldo Leopold and John Muir, The Vanishing Present is an accessible and timely case study of a significant ecosystem and its response to environmental change.
Download or read book The Ecology of Browsing and Grazing written by Iain J. Gordon and published by Springer Science & Business Media. This book was released on 2007-09-14 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume investigates how large herbivores not only influence the structure and distribution of the vegetation, but also affect nutrient flows and the responses of associated fauna. The mechanisms and processes underlying the herbivores' behavior, distribution, movement and direct impact on the vegetation are discussed in detail. It is shown that an understanding of plant/animal interactions can inform the management of large herbivores to integrate production and conservation in terrestrial systems.
Download or read book The Ecology of Browsing and Grazing II written by Iain J. Gordon and published by Springer Nature. This book was released on 2019-11-12 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Domestic and wild large mammalian herbivores occur on every continent except Antarctica. Through their browsing and grazing, they affect the structure and distribution not only of vegetation, but also of associated fauna. Consequently, the interactions between management practices and herbivore populations influence the biodiversity, structure and dynamics of ecosystems across vast expanses around the globe: signs of human activity that will be detectable for epochs to come. As a follow-up work to The Ecology of Browsing and Grazing, published in 2008, this new volume presents cutting-edge research on the behaviour, distribution, movement, and direct and indirect impacts of domestic and wild herbivores on terrestrial ecosystems. The respective chapters highlight strategic and applied research on cross-cutting issues in palaeontology and ecology, and provide concrete recommendations on the management of large herbivores to integrate production and conservation in terrestrial systems. Given its scope, the book will appeal to students, researchers and anyone interested in understanding these fascinating wild animals and how they shape the natural world.
Download or read book Trophic Cascades written by John Terborgh and published by Island Press. This book was released on 2013-06-25 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trophic cascades—the top-down regulation of ecosystems by predators—are an essential aspect of ecosystem function and well-being. Trophic cascades are often drastically disrupted by human interventions—for example, when wolves and cougars are removed, allowing deer and beaver to become destructive—yet have only recently begun to be considered in the development of conservation and management strategies. Trophic Cascades is the first comprehensive presentation of the science on this subject. It brings together some of the world’s leading scientists and researchers to explain the importance of large animals in regulating ecosystems, and to relate that scientific knowledge to practical conservation. Chapters examine trophic cascades across the world’s major biomes, including intertidal habitats, coastal oceans, lakes, nearshore ecosystems, open oceans, tropical forests, boreal and temperate ecosystems, low arctic scrubland, savannas, and islands. Additional chapters consider aboveground/belowground linkages, predation and ecosystem processes, consumer control by megafauna and fire, and alternative states in ecosystems. An introductory chapter offers a concise overview of trophic cascades, while concluding chapters consider theoretical perspectives and comparative issues. Trophic Cascades provides a scientific basis and justification for the idea that large predators and top-down forcing must be considered in conservation strategies, alongside factors such as habitat preservation and invasive species. It is a groundbreaking work for scientists and managers involved with biodiversity conservation and protection.
Download or read book Principles of Ecology written by Rory Putman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: As Ecology teachers ourselves we have become increasingly aware of the lack of a single comprehensive textbook of Ecvlogy which we can recommend unreservedly to our students. While general, review texts are readily available in other fields, recent publications in Ecology have tended for the most part to be small, specialised works on single aspects of the subject. Such general texts as are available are often rather too detailed and, in addition, tend to be somewhat biased towards one aspect of the discipline or another and are thus not truly balanced syntheses of current knowledge. Ecology is, in addition, a rapidly developing subject: new information is being gathered all the time on a variety of key questions; new approaches and techniques open up whole new areas of research and establish new principles. Already things have changed radically since the early '70s and we feel there is a need for an up to date student text that will include some of this newer material. We have tried, therefore, to create a text that will review all the major principles and tenets within the whole field of Ecology, presenting the generally accepted theories and fundamentals and reviewing carefully the evidence on which such principles have been founded. While recent developments in ecological thought are emphasised, we hope that these will not dominate the material to the extent where the older-established principles are ignored or overlooked.
