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Influence Of White Tailed Deer On Nitrogen Cycling And Vegetative Community Change In Canopy Gaps In A Hemlock Northern Hardwood Forest
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Book Synopsis Influence of White-tailed Deer on Nitrogen Cycling and Vegetative Community Change in Canopy Gaps in a Hemlock-northern Hardwood Forest by : Betsy E. Tahtinen
Download or read book Influence of White-tailed Deer on Nitrogen Cycling and Vegetative Community Change in Canopy Gaps in a Hemlock-northern Hardwood Forest written by Betsy E. Tahtinen and published by . This book was released on 2012 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interactions of White-tailed Deer Abundance and Environment Affect Plant Community Composition in Northern Hardwood Forests by : Autumn E. Sabo
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.
Book Synopsis White-tailed Deer in Eastern Ecosystems by : William F. Porter
Download or read book White-tailed Deer in Eastern Ecosystems written by William F. Porter and published by . This book was released on 1991 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildland Fire in Ecosystems written by and published by . This book was released on 1998 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Science of Overabundance by : William J. Mcshea
Download or read book The Science of Overabundance written by William J. Mcshea and published by National Geographic Books. This book was released on 2003-01-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easily the most common of America’s large wildlife species, white-tailed deer are often referred to as "overabundant." But when does a species cross the threshold from common to overpopulated? This question has been the focus of debate in recent years among hunters, animal rights activists, and biologists. William McShea and his colleagues explore every aspect of the issue in The Science of Overabundance. Are there really too many deer? Do efforts to control deer populations really work? What broader lessons can we learn from efforts to understand deer population dynamics? Through twenty-three chapters, the editors and contributors dismiss widely held lore and provide solid information on this perplexing problem.
Book Synopsis Impact of Disturbance and White-tailed Deer (Odocoileus Virginianus) Herbivory on Plant Community and Nutrient Dynamics in Northern Hardwood Forests of Northern New York State by : Karl A. Didier
Download or read book Impact of Disturbance and White-tailed Deer (Odocoileus Virginianus) Herbivory on Plant Community and Nutrient Dynamics in Northern Hardwood Forests of Northern New York State written by Karl A. Didier and published by . This book was released on 2003 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecology and Management of White-tailed Deer in Northeastern Coastal Habitats by : Brian L. Cypher
Download or read book Ecology and Management of White-tailed Deer in Northeastern Coastal Habitats written by Brian L. Cypher and published by . This book was released on 1988 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and Function of an Alpine Ecosystem by : William D. Bowman
Download or read book Structure and Function of an Alpine Ecosystem written by William D. Bowman and published by Oxford University Press. This book was released on 2001-04-26 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will provide a complete overview of an alpine ecosystem, based on the long-term research conducted at the Niwot Ridge LTER. There is, at present, no general book on alpine ecology. The alpine ecosystem features conditions near the limits of biological existence, and is a useful laboratory for asking more general ecological questions, because it offers large environmental change over relatively short distances. Factors such as macroclimate, microclimate, soil conditions, biota, and various biological factors change on differing scales, allowing insight into the relative contributions of the different factors on ecological outcomes.
Book Synopsis SPATIOTEMPORAL VARIABILITY IN WINTER SEVERITY by :
Download or read book SPATIOTEMPORAL VARIABILITY IN WINTER SEVERITY written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract : Winter in the northern Great Lakes presents a suite of challenging conditions for animals, in terms of limited food availability and increased energetic cost of locomotion and thermoregulation. Variable winter severity is liable to cause interannual fluctuations in habitat viability and use by animals, in addition to modulating physiological responses in animals to conserve energy. For example, white-tailed deer (Odocoileus virginianus) congregate at high densities under eastern hemlock (Tsuga canadensis) or northern white-cedar (Thuja occidentalis) stands, which provide forage, thermal cover, reduced snow depth, and enhanced vigilance. However, a suite of climatic, edaphic, and management changes, in addition to novel deer densities, have compromised regeneration of eastern hemlock in recent years, while facilitating the propagation of hardwoods. For this research, I monitored 39 randomly selected eastern hemlock stands across the western Upper Peninsula. I selected a subset of 15 of these stands to survey for forest community composition and assess changes between 2006 and 2015, and found evidence of a transition to hardwoods such as maple (Acer rubrum and A. saccharum). This change in forest composition will have significant implications for migratory white-tailed deer, particularly when coupled with more extreme winter conditions predicted to occur with climate change. I monitored local deer use in all 39 stands from winter 2014-15 to 2017-2018, building on a dataset extending back to winter 2005-2006, by counting fecal pellet groups in each stand, and found evidence of reduced use following recent severe winters, as well as a spatial shift in intensity of use. I assessed diet composition by collecting fecal samples during spring pellet surveys, and found evidence of spatial variability in the diet, likely due to spatiotemporal variation in winter severity. To further understand the physiological implications of winter severity and winter diet, I assessed physiological stress response (via non-invasive fecal glucocorticoids) and found evidence of endocrine down-regulation in animals with a poor diet and in extreme conditions. My findings underscore the importance of maintaining a mesic conifer component in northern forests to provide winter habitat for regional migratory deer populations.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309679702 Total Pages :423 pages Book Rating :4.3/5 (96 download)
Book Synopsis Review of the New York City Watershed Protection Program by : National Academies of Sciences, Engineering, and Medicine
Download or read book Review of the New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-12-04 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York City's municipal water supply system provides about 1 billion gallons of drinking water a day to over 8.5 million people in New York City and about 1 million people living in nearby Westchester, Putnam, Ulster, and Orange counties. The combined water supply system includes 19 reservoirs and three controlled lakes with a total storage capacity of approximately 580 billion gallons. The city's Watershed Protection Program is intended to maintain and enhance the high quality of these surface water sources. Review of the New York City Watershed Protection Program assesses the efficacy and future of New York City's watershed management activities. The report identifies program areas that may require future change or action, including continued efforts to address turbidity and responding to changes in reservoir water quality as a result of climate change.
Book Synopsis Winter Bed-site Selection by White-tailed Deer in a Hemlock-northern Hardwood Forest by : Brian K. Lang
Download or read book Winter Bed-site Selection by White-tailed Deer in a Hemlock-northern Hardwood Forest written by Brian K. Lang and published by . This book was released on 1983 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Natural Communities of New Hampshire by : Daniel D. Sperduto
Download or read book Natural Communities of New Hampshire written by Daniel D. Sperduto and published by . This book was released on 2004 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Causes and Consequences of Species Diversity in Forest Ecosystems by : Aaron M. Ellison
Download or read book Causes and Consequences of Species Diversity in Forest Ecosystems written by Aaron M. Ellison and published by MDPI. This book was released on 2019-07-30 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Causes and Consequences of Species Diversity in Forest Ecosystems that was published in Forests
Book Synopsis Effects of Year-round Supplemental Feeding of White-tailed Deer on Plant Community Dynamics by : Beau Navarre
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.
Book Synopsis Evaluating the Influence White-tailed Deer Have on Wetland Vegetation Types with Respect to Wetland Birds at Shiawassee National Wildlife Refuge, Saginaw, Michigan by : Stephanie E. Longstaff
Download or read book Evaluating the Influence White-tailed Deer Have on Wetland Vegetation Types with Respect to Wetland Birds at Shiawassee National Wildlife Refuge, Saginaw, Michigan written by Stephanie E. Longstaff and published by . This book was released on 2013 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: "White-tailed deer (Odocoileus virginianus), can be keystone herbivores in forest ecosystems and greatly impact forest conditions. Results of previous deer herbivory research could cause biologists concern when managing wetlands as suitable habitat for migratory waterfowl since high levels of herbivory can negatively impact plant communities. There is a knowledge gap on how deer use of wetland vegetation types may affect bird use of those same wetlands. Our objectives were to 1) evaluate white-tailed deer habitat suitability within a landscape dominated by wetlands, 2) quantify and compare use of wetland vegetation types by white-tailed deer to use by wetland bird communities, and 3) quantify white-tailed deer herbivory within various wetland types."--Abstract.
Book Synopsis The Effects of Browsing by White-tailed Deer on the Growth and Survival of Red Maple and Red Oak Seedlings in a Northern Hardwood Forest by : Alison M. Glucksnis
Download or read book The Effects of Browsing by White-tailed Deer on the Growth and Survival of Red Maple and Red Oak Seedlings in a Northern Hardwood Forest written by Alison M. Glucksnis and published by . This book was released on 1999 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
