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Using Satellite Imagery And Landscape Variables To Predict Bird Communities In Montane Meadows Of The Greater Yellowstone Ecosystem
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Book Synopsis Using Satellite Imagery and Landscape Variables to Predict Bird Communities in Montane Meadows of the Greater Yellowstone Ecosystem by : Erika Hasler Saveraid
Download or read book Using Satellite Imagery and Landscape Variables to Predict Bird Communities in Montane Meadows of the Greater Yellowstone Ecosystem written by Erika Hasler Saveraid and published by . This book was released on 1999 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our results indicate that similarity is not high between bird communities in the two study areas, and it is difficult to use composition and abundance data from one study area to classify the meadow types in the other area. A multiple regression analysis was used to test the predictability of bird communities in the two study areas based upon remotely sensed habitat classifications and landscape and habitat variables. The analyses of the meadow type variable and other landscape and habitat variables produced mixed results.
Book Synopsis A Remote Sensing and GIS-based model of avian species habitat and its potential as a part of an environmental monitoring programme by : Thomas Gottschalk
Download or read book A Remote Sensing and GIS-based model of avian species habitat and its potential as a part of an environmental monitoring programme written by Thomas Gottschalk and published by diplom.de. This book was released on 2014-04-11 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Introduction: Over 10% (1186 species) of the bird species in the world are threatened with extinction in the near future, almost all of them due to habitat change or loss by man. Likewise, 1130 mammals, 296 reptiles, 146 amphibians and 5611 plants have been identified as endangered species. The destruction of natural habitat is the major factor contributing to the global species extinction event. The increasing loss of biodiversity has centred on conducting inventories and monitoring species and habitats, especially in identifying areas of high species richness, threatened species and species of restricted or local distribution. In 1992 the UNCED-Conference in Rio de Janeiro pointed out the need for monitoring the environment, leading to the Convention on Biological Diversity and the Agenda 21. Article 7 of the Convention on Biological Diversity deals with identification and monitoring, which are to be undertaken with sampling and other techniques. New methodologies with a view to undertaking systematic sampling and evaluation of the components of biological diversity are to be developed. While the number of identified threatened species has increased dramatically, a huge gap in knowledge of ecosystems and their fauna and flora remains. Distribution, status and ecology of species are mostly unknown in many countries, as is the degree they are endangered. In view of the immense unknown ecosystems in the world, a great number of which are located in developing countries, conventional survey and mapping methods cannot deliver the necessary information in a timely and cost-effective fashion. Nature conservation will require large volumes of Remote Sensing (RS) data if the quality of planning is to improve. With RS technology, we may be able to make real progress in understanding why more species occur in some places than in others and in identifying the most critical places that must be protected to preserve the maximum number of species into the 22nd century and beyond. As current air photos are often not available, satellite images are the sole source of data for many regions of the world. Fortunately, computer technology has improved enormously in the last years, mainly processing time, storage requirements as well as programme features and possibilities. Concurrent declining costs of computer hardware have favoured the design of new techniques for special data processing and combining remotely sensed information with other extensive [...]
Book Synopsis Monitoring Ecological Condition in the Western United States by : Shabeg S. Sandhu
Download or read book Monitoring Ecological Condition in the Western United States written by Shabeg S. Sandhu and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The monitoring of point sources by the Environmental Protection Agency (EPA), the states, and the tribes has documented and helped reduce the levels of chemical stressors affecting our ecosystems. With the controls on point sources reducing chemical contamination, new environmental challenges associated with nonpoint sources have emerged. To adequately deal with these new problems, EPA's Office of Research and Development recognized the need to develop an overall under standing of the condition of our ecological resources, the trends in their condition, and the stressors affecting these systems on a broad scale. Toward this end, the En vironmental Monitoring and Assessment Program (EMAP) was established by EPA and has been strategically developing the scientific tools and techniques to monitor and assess the status and trends of aquatic ecosystems. EMAP scientists have developed new indicators and probability-based de signs to fill data gaps in the development of regional-scale assessments of our aquatic resources, as required in the Clean Water Act. We have a scientifically de fensible approach that allows: 100 percent coverage of the aquatic resources within broad geographic areas and the formulation of reference 'conditions for es tablishing the health of these resources. The use of these indicators and designs were successfully demonstrated in the landscapes, streams, and estuaries of the mid-Atlantic states as part of the Mid-Atlantic Integrated Assessment (MAlA).
Book Synopsis Bird and Butterfly Community Structure and Songbird Next Success in Montane Meadows of the Greater Yellowstone Ecosystem by : Ron Edward VanNimwegen
Download or read book Bird and Butterfly Community Structure and Songbird Next Success in Montane Meadows of the Greater Yellowstone Ecosystem written by Ron Edward VanNimwegen and published by . This book was released on 2004 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: We performed bird and butterfly surveys from 1996 to 2004, and Yellow Warbler nest surveys in 2002 and 2004. Bird and butterfly surveys took place in two regions of the Greater Yellowstone Ecosystem. The northern region, or "Gallatins", consisted of the northwest corner of Yellowstone National Park and the western edge of Gallatin National Forest. The southern region, or "Tetons", included Grand Teton National Park extending slightly into Bridger-Teton National Forest. The bird and butterfly surveys (25 sampling sites in each region) were used to relate species composition to montane meadow types, which we classified along a hydrological gradient using remotely-sensed satellite imagery. We also related shifts in species composition to temporal changes in the Normalized Difference Vegetation Index (NDVI), which we used as a surrogate measure of climate (e.g., temperature and precipitation). NDVI measures were derived from the same satellite imagery used to construct the habitat classification. We found that Gallatin butterflies in mesic (as opposed to dry or wet) meadows exhibited concurrent shifts in species composition correlated with NDVI between the years 1997 and 2000, and between the years 1998 and 2000. Yellow Warbler nest surveys were performed only in the Tetons and were restricted to willow habitats. We hypothesized that waterway density within each nest territory would indirectly lower nest success by attracting high densities of garter snakes, which would then opportunistically prey on warbler nests. We used a recently published method of nest success analysis known as logistic-exposure, which is a logistic regression technique slightly modified via its logit link function. We found a significant negative effect of waterway density on nest success in our Pacific Creek study site, with a parameter estimate of -0.048 and a 95% confidence interval of [-0.086, -0.012]. We concluded that butterflies in the Gallatins responded at the community level to changes in vegetation within certain habitat types, which in turn reflected general climate patterns over specific time periods. We also concluded that waterway density can be used as an indirect predictor of nest success in Yellow Warblers, provided other predators are taken into account.
Book Synopsis Comparison of Satellite Data and Landscape Variable in Predicting Bird Species Occurrences in the Greater Yellowstone Ecosystem, USA. by : Erika Hasler Saveraid
Download or read book Comparison of Satellite Data and Landscape Variable in Predicting Bird Species Occurrences in the Greater Yellowstone Ecosystem, USA. written by Erika Hasler Saveraid and published by . This book was released on 2001 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annual Report by : University of Wyoming-National Park Service Research Center
Download or read book Annual Report written by University of Wyoming-National Park Service Research Center and published by . This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Commencement by : Iowa State University
Download or read book Commencement written by Iowa State University and published by . This book was released on 1998 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quantifying Relationships Between Bird and Butterfly Community Shifts and Environmental Change by : Diane M. Debinski
Download or read book Quantifying Relationships Between Bird and Butterfly Community Shifts and Environmental Change written by Diane M. Debinski and published by . This book was released on 2006 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantifying the manner in which ecological communities respond during a time of decreasing precipitation is a first step in understanding how they will respond to longer-term climate change. Here we coupled analysis of interannual variability in remotely sensed data with analyses of bird and butterfly community changes in montane meadow communities of the Greater Yellowstone Ecosystem. Landsat satellite imagery was used to classify these meadows into six types along a hydrological gradient. The northern portion of the ecosystem, or Gallatin region, has smaller mean patch sizes separated by ridges of mountains, whereas the southern portion of the ecosystem, or Teton region, has much larger patches within the Jackson Hole valley. Both support a similar suite of butterfly and bird species. The Gallatin region showed more overall mong-year variation in the normalized difference vegetation index (NDVI) when meadow types were pooled within regions, perhaps because the patch sizes are smaller on average. Bird and butterfly communities showed significant relationships relative to meadow type andNDVI. We identified several key species that are tightly associated with specific meadow types along the hydrological gradient. Comparing taxonomic groups, fewer birds showed specific habitat affinities than butterflies, perhaps because birds are responding to differences in habitat structure among meadow types and using the landscape at a coarser scale than the butterflies. Comparing regions, the Teton region showed higher predictability of community assemblages as compared to the Gallatin region. The Gallatin region exhibited more significant temporal trends with respect to butterflies. Butterfly communities in wet meadows showed a distinctive shift along the hydrological gradient during a drought period (1997-2000). These results imply that the larger Teton meadows will show more predictable (i.e. static) species-habitat associations over the long term, but that the smaller Gallatin meadows may be an area that will exhibit the effects of global climate change faster.
Book Synopsis Ecological Dynamics on Yellowstone's Northern Range by : National Research Council
Download or read book Ecological Dynamics on Yellowstone's Northern Range written by National Research Council and published by National Academies Press. This book was released on 2002-02-01 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Dynamics on Yellowstone's Northern Range discusses the complex management challenges in Yellowstone National Park. Controversy over the National Park Service's approach of "natural regulation" has heightened in recent years because of changes in vegetation and other ecosystem components in Yellowstone's northern range. Natural regulation minimizes human impacts, including management intervention by the National Park Service, on the park ecosystem. Many have attributed these changes to increased size of elk and other ungulate herds. This report examines the evidence that increased ungulate populations are responsible for the changes in vegetation and that the changes represent a major and serious change in the Yellowstone ecosystem. According to the authors, any human intervention to protect species such as the aspen and those that depend on them should be prudently localized rather than ecosystem-wide. An ecosystem-wide approach, such as reducing ungulate populations, could be more disruptive. The report concludes that although dramatic ecological change does not appear to be imminent, approaches to dealing with potential human-caused changes in the ecosystem, including those related to climate change, should be considered now. The need for research and public education is also compelling.
Book Synopsis Yellowstone’s Birds by : Douglas W. Smith
Download or read book Yellowstone’s Birds written by Douglas W. Smith and published by Princeton University Press. This book was released on 2023-10-10 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: A beautifully illustrated survey of Yellowstone’s breathtaking birdlife, written by a team of renowned ornithologists and wildlife biologists Established in 1872, Yellowstone National Park is the oldest and arguably the most famous national park in North America, attracting millions of visitors each year. While many come to the park for its recreational activities, the wildlife of Yellowstone is just as alluring. This book brings together more than 30 leading experts to provide the first comprehensive survey of the natural history, science, and conservation of birds in Yellowstone. Covering most bird species breeding within the great park as well as the many migrants that pass through, Yellowstone’s Birds is a scientific tour de force and an essential resource for visitors to Yellowstone and bird lovers everywhere. Tallies more than 200 species, including migrants Describes the natural history, status, and latest science on the birds of Yellowstone Features fact-filled, easy-to-read chapters, informative sidebar essays, maps, infographics, and photos that present current science in an easily understood way Accompanied by videos by award-winning cinematographer Bob Landis Draws on a wealth of data on Yellowstone’s birds collected over many decades With contributions by many of today’s leading bird experts, this is a long-overdue survey of Yellowstone’s breathtaking avian fauna
Book Synopsis Birds of Yellowstone by : Terry McEneaney
Download or read book Birds of Yellowstone written by Terry McEneaney and published by Roberts Rinehart Publishers. This book was released on 1988 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical habitat guide to the birds of Yellowstone National Park, and where to find them.
Book Synopsis The Ecology of Large Mammals in Central Yellowstone by : Robert A. Garrott
Download or read book The Ecology of Large Mammals in Central Yellowstone written by Robert A. Garrott and published by Academic Press. This book was released on 2008-11-25 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an authoritative work on the ecology of some of America’s most iconic large mammals in a natural environment - and of the interplay between climate, landscape, and animals in the interior of the world’s first and most famous national park.Central Yellowstone includes the range of one of the largest migratory populations of bison in North America as well as a unique elk herd that remains in the park year round. These populations live in a varied landscape with seasonal and often extreme patterns of climate and food abundance. The reintroduction of wolves into the park a decade ago resulted in scientific and public controversy about the effect of large predators on their prey, a debate closely examined in the book. Introductory chapters describe the geography, geology and vegetation of the ecosystem. The elk and bison are then introduced and their population ecology described both pre- and post– wolf introduction, enabling valuable insights into the demographic and behavioral consequences for their ungulate prey. Subsequent chapters describe the wildlife-human interactions and show how scientific research can inform the debate and policy issues surrounding winter recreation in Yellowstone. The book closes with a discussion of how this ecological knowledge can be used to educate the public, both about Yellowstone itself and about science, ecology and the environment in general. Yellowstone National Park exemplifies some of the currently most hotly debated and high-profile ecological, wildlife management, and environmental policy issues and this book will have broad appeal not only to academic ecologists, but also to natural resource students, managers, biologists, policy makers, administrators and the general public. Unrivalled descriptions of ecological processes in a world famous ecosystem, based on information from 16 years of painstaking field work and collaborations among 66 scientists and technical experts and 15 graduate studies Detailed studies of two charismatic North American herbivore species – elk and bison Description of the restoration of wolves into central Yellowstone and their ecological interactions with their elk and bison prey Illustrated with numerous evocative colour photographs and stunning maps
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Remote Sensing and GIS-based Model of Habitats and Biodiversity in the Greater Yellowstone Ecosystem by : Diane M. Debinski
Download or read book A Remote Sensing and GIS-based Model of Habitats and Biodiversity in the Greater Yellowstone Ecosystem written by Diane M. Debinski and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We used remotely sensed data and geographical information systems (GIS) to categorize habitats, then determined the relationship between remotely sensed habitat categorizations and species distribution patterns. Three forest types and six meadow types in the Greater Yellowstone Ecosystem, USA, were classified using Landsat TM data. All plant species with 5% cover or greater, 31% of the butterfly species, and 20% of the bird species exhibited significant differences in distribution among meadow types. Sites of highest species richness coincided for plants, birds, and butterflies and were found in mesic meadows.
Book Synopsis Identifying Common Patterns in Diverse Systems by : Michale J. Glennon
Download or read book Identifying Common Patterns in Diverse Systems written by Michale J. Glennon and published by . This book was released on 2015 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: We examined the impacts of exurban development on bird communities in Essex County, New York and Madison County, Montana by comparing differences in abundance of songbirds between subdivisions and control sites in both regions. We hypothesized that impacts to bird communities would be greater in the relatively homogeneous, closed canopy Adirondack forest of northern New York State than they would be in the more naturally heterogeneous grasslands interspersed with trees and shrubs of the Greater Yellowstone Ecosystem. We examined birds in five functional groups expected to be responsive to exurban development, and determined relative abundance within subdivisions and control sites across these two distinct regions. We found little support for our hypothesis. For birds in the area-sensitive, low nesting, and Neotropical migrant functional groups, relative abundance was lower in subdivisions in the Adirondacks and in Madison County, while relative abundance of edge specialists was greater in subdivisions in both regions. The direction and magnitude of change in the avian communities between subdivisions and controls was similar in both regions for all guilds except microhabitat specialists. These similarities across diverse ecosystems suggest that the ecological context of the encompassing region may be less important than other elements in shaping avian communities in exurban systems. This finding suggests that humans and their specific behaviors and activities in exurban areas may be underappreciated but potentially important drivers of change in these regions.
Book Synopsis Assessing Monitoring Techniques for Bird Populations in Sierra Nevada Montane Meadow and Aspen Communities by : Amy Kay Tegeler Amones
Download or read book Assessing Monitoring Techniques for Bird Populations in Sierra Nevada Montane Meadow and Aspen Communities written by Amy Kay Tegeler Amones and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Point count and species-specific surveys are widely used to infer avian abundance and species richness. However, advancements in bioacoustic technology enable automated survey alternatives that can expand the landscape coverage with equivalent personnel resources. We surveyed birds in the Sierra Nevada from May to August 2006 using both point count surveys and automated audio recorders. We developed an avian monitoring protocol by conducting point count surveys every 7 to 10 days for a total of eight times during the breeding season. Vocalizations of willow flycatcher (Empidonax traillii), Lincoln's sparrow (Melospiza lincolnii), and Wilson's warbler (Wilsonia pusilla) were broadcast at every point count station. Our results suggest that three point count surveys per field season, and point count durations of 10 min, optimize the number of species detected and sampling effort expended. Aural stimuli can supplement point counts as a quick and easy method to increase detections of the three hard to detect focal species. Habitat models were developed for the three hard to detect species plus dusky flycatcher (Empidonax oberholeri), song sparrow (Melospiza melodia), and yellow warbler (Dendroica petechia) using the habitat variables: meadow size, and percent cover of tree, riparian deciduous shrub, and herbaceous vegetation. We compared point count and automated recording unit surveys by placing audio recorders at point count stations and recording avian vocalizations. Point counts detected more species than audio recorders when sampling time was the same for both methods. However, audio recorders provided more hours of data than point count surveys, with the same amount of effort. The increased sampling intensity of audio recorders will likely result in additional species being detected and assisted in detecting a willow flycatcher in a meadow where none were detected during standard willow flycatcher surveys.
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
