Download or read book Stopover Ecology of Semipalmated Sandpipers Calidris Pusilla at Coastal Deltas of the Beaufort Sea Alaska written by Roy Thomas Churchwell and published by . This book was released on 2015 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avian migration is one of the wonders of the natural world. Stored fats are the main source of nutrients and fuel for avian migration and it is assumed the fat deposition at stopover sites is a critical component of a successful migration. Stopover sites are crucial in the successful migration of many birds, but particularly for arctic-breeding shorebirds that migrate long distances from breeding to wintering grounds. Despite the importance of stopover sites, it is often difficult to determine the importance of these sites to migrating shorebirds. I investigated three aspects of stopover ecology of Semipalmated Sandpipers (Calidris pusilla) foraging at coastal deltas on the Beaufort Sea coast, Alaska. First, I quantified the spatial and temporal distribution and abundance of the benthic macroinvertebrate community living within the mudflats. I found that there were two ecological groups of macroinvertebrates using river deltas, one originated in terrestrial freshwater habitats and most importantly could withstand freezing in delta sediments over the winter, and the other originated from the marine environment, could not withstand freezing and had to migrate to intertidal habitats each summer from deeper water areas that did not freeze over the winter. Stable isotope analysis allowed me to describe the origin of carbon consumed by invertebrates in intertidal habitats. I predicted freshwater invertebrates would consume terrestrial carbon, and marine invertebrates would consume marine carbon, but I found that both groups utilized the same carbon, which was a mixture of terrestrial and marine sources. My second research question determined the importance of delta foraging habitat for fall migrating Semipalmated Sandpipers. I mapped the temporal distribution and abundance of birds and quantified this relationship to invertebrate distribution and abundance. I researched fattening rates of shorebirds by measuring triglycerides in the blood of shorebirds I captured. I hypothesized that triglyceride levels would be correlated with invertebrate abundance and related to habitat quality; however, I found no relationship. Next, I determined shorebird dependence on marine invertebrates using the stable isotope signature of invertebrates and shorebird plasma. I found that shorebird abundance was associated with invertebrate abundance, and that shorebirds did feed almost exclusively on invertebrates from the mudflats later in the season. I did not find a significant difference in habitat quality among the deltas, although more birds were counted at the Jago Delta than at the other two deltas. Finally, I researched the question of how change in water levels due to lunar tides and storm surge events impacted the availability of foraging habitat. I assessed the phenology of Semipalmated Sandpiper migration and how this related to the availability of forage based on abundance, distribution, and accessibility of macroinvertebrates. There was a significant decline in the calories available for forage when there was a lunar tide and when there was a storm surge event. The most foraging habitat was available late in the migration period, while the peak in Semipalmated Sandpiper migration was early in the period. Late in the season there is also a greater chance of a storm surge event occurring due to the lack of sea ice during that period. In summary, I found Beaufort Sea deltas were more diverse than I expected both in macroinvertebrate community and in how shorebirds use the available foraging habitat. After completing this research I feel this habitat is critical to Semipalmated Sandpiper migration; however, there is a real risk of extensive change to these deltas due to future warming with negative consequences for shorebirds.
Download or read book Stopover Ecology of Semipalmated Sandpipers calidris Pusilla During Fall Migration Through the Upper Bay of Fundy Canada written by Sarah G. Neima and published by . This book was released on 2016 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Importance of Fat Accumulation in the Use of Plymouth Beach as a Stopover Site During Migration of Semipalmated Sandpipers Calidris Pusilla written by Mark J. Kasprzyk and published by . This book was released on 1991 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Time energy budget of the semipalmated sandpiper Calidris pusilla at Barrow Alaska written by Shoshana Ashkenazie and published by . This book was released on 197? with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movement Habitat Use and Metabolic Condition of Semipalmated Sandpiper calidris Pusilla During Migratory Stopover and Non breeding Periods written by Rebeca C. Linhart and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movement Patterns Duration of Stay and Diet of Semipalmated Sandpipers Calidris Pusilla During Migratory Stopover in the Upper Bay of Fundy written by Sarah G. Neima and published by . This book was released on 2014 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foraging Ecology and Body Condition of Migrant Semipalmated Sandpipers Calidris Pusilla on Three Mudflats in the Bay of Fundy Hemispheric Shorebird Reserve Nova Scotia written by Kimberley Mawhinney Gilliland and published by . This book was released on 1992 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Dynamic Model of Semipalmated Sandpiper Migration Implications for Conservation written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I developed a stochastic dynamic programming model of adult female Semipalmated Sandpiper (Calidris pusilla) spring migration for the purpose of adaptive management of wetlands along their migratory route. Semipalmated Sandpipers are small abundant shorebirds that migrate through Merritt Island National Wildlife Refuge, FL, Yawkey Reserve, SC, Pea Island National Wildlife Refuge, NC, and Delaware Bay on their way from the Caribbean and South America to arctic North American breeding grounds. The first three stopover sites mentioned include managed wetlands. To manage these wetlands for Semipalmated Sandpiper and other migratory shorebirds' fitness by changing water levels to alter food availability, it is important to understand how the birds are using these stopover sites. A stochastic dynamic programming model is a model of organism behavior which assumes that the organism is attempting to optimize its fitness. In this model, the fitness of the birds depends on surviving migration as well as arriving on the breeding grounds close to an optimal date and with sufficient energy reserves. The birds can decide each day whether to stay at the current stopover site and feed, or to fly to the next site. Model parameters include flight constants, ground speed probabilities, energy gain, and predation rates. The values of several parameters were tuned so that average peaks of migration at the stopover sites and average percent fat of the birds on different days and stopover sites correlated well with data taken from published and unpublished studies. The model outcomes include average fitness, seasonal mortality rate, reproductive output, average length of stay at each stopover site, and percentage skimming (not staying to feed) at each stopover site. The peaks of migration matched the targets set. The birds stayed longest at the first and last stopover sites; many birds did not stop to feed at the middle two stopover sites. The average mortality of the spring migration sea.
Download or read book Duration of Stay and Movements of Semipalmated Sandpipers Calidris Pusilla During Migratory Stopover in the Upper Bay of Fundy written by Abigail S. White and published by . This book was released on 2013 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Natural History of an Arctic Oil Field written by Joe C. Truett and published by Elsevier. This book was released on 2000-06-09 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: In spite of the harsh conditions that characterize the Arctic, it is a surprisingly fragile ecosystem. The exploration for oil in the Arctic over the past 30 years has had profound effects on the plants and animals that inhabit this frozen clime. The Natural History of an Arctic Oil Field synthesizes decades of research on these myriad impacts. Specialists with years of field experience have contributed to this volume to create the first widely available synopsis of the ecology and wildlife biology of animals and plants living in close association with an actively producing oil field. - First widely available synthesis of arctic oil field ecology and wildlife biology - Concise yet readable treatment of a diverse polar ecosystem - Useful for land managers, policy makers as well as ecologists, and population biologists - Chapters authored by recognized authorities and contributions are peer-reviewed for accuracy and scientific rigor - Illustrations attractively designed to enhance comprehension
Download or read book Biology of Marine Birds written by E. A. Schreiber and published by CRC Press. This book was released on 2001-08-16 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Marine Birds provides the only complete summary of information about marine birds ever published. It analyzes their breeding biology, ecology, taxonomy, evolution, fossil history, physiology, energetics, and conservation. The book covers four orders of marine birds in detail and includes two summary chapters that address the biology of shorebirds and wading birds and their lives in the marine environment. Summary tables give detailed information on various aspects of their life histories, breeding biology, physiology and energetics, and demography. It provides a guide to ornithologists and students for research projects.
Download or read book Indigenous Leadership in Higher Education written by Robin Minthorn and published by Routledge. This book was released on 2014-12-17 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers new perspectives from Indigenous leaders in academic affairs, student affairs and central administration to improve colleges and universities in service to Indigenous students and professionals. It discusses and illustrates ways that leadership norms, values, assumptions and behaviors can often find their origins in cultural identities, and how such assumptions can affect the evolvement of colleges and universities in serving Indigenous Peoples. It contributes to leadership development and reflection among novice, experienced, and emerging leaders in higher education and provides key recommendations for transforming higher education. This book introduces readers to relationships between Indigenous identities and leadership in diverse educational environments and institutions and will benefit policy makers in education, student affairs professionals, scholars, faculty and students.
Download or read book Drafting a Conservation Blueprint written by Craig Groves and published by . This book was released on 2003-05-16 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drafting a Conservation Blueprint lays out for the first time in book form a step-by-step planning process for conserving the biological diversity of entire regions. In an engaging and accessible style, the author explains how to develop a regional conservation plan and offers experience-based guidance that brings together relevant information from the fields of ecology, conservation biology, planning, and policy. Individual chapters outline and discuss the main steps of the planning process, including: • an overview of the planning framework • selecting conservation targets and setting goals • assessing existing conservation areas and filling information gaps • assessing population viability and ecological integrity • selecting and designing a portfolio of conservation areas • assessing threats and setting priorities A concluding section offers advice on turning conservation plans into action, along with specific examples from around the world. The book brings together a wide range of information about conservation planning that is grounded in both a strong scientific foundation and in the realities of implementation.
Download or read book Arctic Wings written by Stephen Charles Brown and published by Braided River. This book was released on 2006 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two hundred color images celebrating the birds that journey to the Arctic National Wildlife Refuge each year are accompanied by essays by noted biologists and conservationists.
Download or read book Flyways and Reserve Networks for Water Birds written by Canadian Wildlife Service and published by Canadian Museum of Civilization/Musee Canadien Des Civilisations. This book was released on 1989 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Bird Biology written by Irby J. Lovette and published by John Wiley & Sons. This book was released on 2016-06-27 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected by Forbes.com as one of the 12 best books about birds and birding in 2016 This much-anticipated third edition of the Handbook of Bird Biology is an essential and comprehensive resource for everyone interested in learning more about birds, from casual bird watchers to formal students of ornithology. Wherever you study birds your enjoyment will be enhanced by a better understanding of the incredible diversity of avian lifestyles. Arising from the renowned Cornell Lab of Ornithology and authored by a team of experts from around the world, the Handbook covers all aspects of avian diversity, behaviour, ecology, evolution, physiology, and conservation. Using examples drawn from birds found in every corner of the globe, it explores and distills the many scientific discoveries that have made birds one of our best known - and best loved - parts of the natural world. This edition has been completely revised and is presented with more than 800 full color images. It provides readers with a tool for life-long learning about birds and is suitable for bird watchers and ornithology students, as well as for ecologists, conservationists, and resource managers who work with birds. The Handbook of Bird Biology is the companion volume to the Cornell Lab's renowned distance learning course, www.birds.cornell.edu/courses/home/homestudy/.
Download or read book Australian Saltmarsh Ecology written by Neil Saintilan and published by CSIRO PUBLISHING. This book was released on 2009 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Australian Saltmarsh Ecologypresents the first comprehensive review of the ecology and management of Australian saltmarshes. The past 10 years in particular have seen a sustained research effort into this previously poorly understood and neglected resource. In ten chapters contributed by experts in each discipline, the book outlines what is known of the biogeography and geomorphology of Australian saltmarshes, their fish and invertebrate ecology, the use of Australian saltmarshes by birds and insectivorous bats, and the particular challenges of management, including the control of mosquito pests and the issue of sea-level rise. It provides a powerful argument that coastal saltmarsh is a unique and critical habitat vulnerable to the combined impacts of coastal development and sea-level rise.
