Download or read book Vegetation of the Angmagssalik District Southeast Greenland IV Shrub Dwarf Shrub and Terricolous Lichens written by F. J. A. Daniëls and published by . This book was released on 1982 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetation of the Angmagssalik District Southeast Greenland IV Shrub Dward Shrub and Terricolous Lichens written by and published by Museum Tusculanum Press. This book was released on with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetation of the Angmagssalik District Southeast Greenland written by Frederikus Josephus Alphonsus Daniëls and published by . This book was released on 1980 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of the Peregrine and Gyrfalcon in Greenland written by William A. Burnham and published by Museum Tusculanum Press. This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ten year study began in 1972 in West Greenland to investigate the breeding biology of the peregrine falcon. Data on nesting gyrfalcons were also collected. Thirty-four peregrine nesting sites were examined in the 6050 km2 inland study area near Søndre Strømfjord. Limited research also centered in Disko Bugt and Frederikshåb. Peregrines were found nesting predominantly on high, south-facing cliffs, which overlooked large areas. The mean minimum distance between peregrine eyries was 7.7 km for the inland area (1972 and 1973) and 55 km for the coast (1974). Approximately 60 percent of the inland nesting sites were occupied each year. A ten-year average production of 1.90 young per occupied site and 2.78 young per successful site was determined. Lapland longspurs, snow buntings, wheatears, and redpolls comprised 90 percent of the peregrines diet. Raven nests and prey availability may be the most significant factor affecting falcon density. Addled peregrine eggs, eggshell fragments, and peregrine prey species were collected. Whole eggs averaged 14.3 ppm wet weight (305 ppm lipid weight ) DDE, while eggshell measurements showed a 16 percent thinning compared with pre-1940 eggs from Greenland. Prey species carried low levels of DDE. The peregrine population appears to be at a near critical contamination level, and a small increase in DDE level could contribute to a population decline. No indication of a decline has been observed during the study, and the population appears stable. The project banded 185 peregrines, from which 8 recoveries occurred. The recoveries suggest peregrines migrate south to winter in South America.
Download or read book The Allotetraploid Saxifraga Nathorsti and its Probable Progenitors S Aizoides and S Oppositifolia written by and published by Museum Tusculanum Press. This book was released on with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Soil Crusts Structure Function and Management written by Jayne Belnap and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: In arid lands, where vegetation is sparse or absent, the open ground is not bare but generally covered by a community of small, highly specialized organisms. Cyanobacteria, algae, microfungi, lichens, and bryophytes aggregate soil particles to form a coherent skin - the biological soil crust. It stabilizes and protects the soil surface from erosion by wind and water, influences water runoff and infiltration, and contributes nitrogen and carbon to desert soils. Soil surface disturbance, such as heavy livestock grazing, human trampling or off-road vehicles, breaks up the fragile soil crust, thus compromising its stability, structure, and productivity. This book is the first synthesis of the biology of soil crusts and their importance as an ecosystem component. Composition and functioning of different soil-crust types are discussed, and case studies are used to show the impact of crusts on landscape hydrology, soil stability, nutrient cycles, and land management.
Download or read book The Vegetation Types of Northeast Greenland written by Bent Fredskild and published by Museum Tusculanum Press. This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: .
Download or read book Biology of Polar Bryophytes and Lichens written by R. E. Longton and published by CUP Archive. This book was released on 1988-11-10 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers the evolution and adaptions of arctic and antarctic floras and the role of these plants in the vegetation and in the functioning of tundra ecosystems.
Download or read book Encyclopedia of the Arctic written by Mark Nuttall and published by Routledge. This book was released on 2005-09-23 with total page 2306 pages. Available in PDF, EPUB and Kindle. Book excerpt: With detailed essays on the Arctic's environment, wildlife, climate, history, exploration, resources, economics, politics, indigenous cultures and languages, conservation initiatives and more, this Encyclopedia is the only major work and comprehensive reference on this vast, complex, changing, and increasingly important part of the globe. Including 305 maps. This Encyclopedia is not only an interdisciplinary work of reference for all those involved in teaching or researching Arctic issues, but a fascinating and comprehensive resource for residents of the Arctic, and all those concerned with global environmental issues, sustainability, science, and human interactions with the environment.
Download or read book Snow Ecology written by H. G. Jones and published by Cambridge University Press. This book was released on 2001-01-15 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary 2001 overview of life in, on and under snow for anyone interested in the cryosphere.
Download or read book Birth of Scientific Ecology written by Patrick Matagne and published by John Wiley & Sons. This book was released on 2024-02-21 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a biography of the Danish botanist Eugen Warming. As the author of a treatise on ecology that brought him international recognition, he was able to inspire the first generation of 20th-century European and American ecologists. His innovative approach to nature and his Arctic and tropical missions heralded the birth of a new science and an ecological awareness. As a professor at several Scandinavian universities during a period of intense debate and controversy over evolutionary theories, Eugen Warming vigorously asserted his convictions. Birth of Scientific Ecology presents the image of a man of knowledge and power, recognized by his contemporaries as a founder of ecology and a player in the ecological project of the Kingdom of Denmark at a time when the empires were clashing.
Download or read book Meroplankton in Jorgen Bronlund Fjord North Greenland written by Ole G.. Norden Andersen and published by Museum Tusculanum Press. This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Newsletter from the Commission for Scientific Research in Greenland written by and published by . This book was released on 1979 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Present and Past Arctic Environments written by Neloy Khare and published by Elsevier. This book was released on 2021-08-20 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding Present and Past Arctic Environments: An Integrated Approach from Climate Change Perspectives provides a fully comprehensive overview of the past, present and future outlook for this incredibly diverse and important region. Through a series of contributed chapters, the book explores changes to this environment that are attributed to the effects of climate change. The book explores the current effects climate change has had on Arctic environments and ecosystems, our current understanding of the effects climate change is having, the effects climate change is having on the atmospheric and ocean processes in this region. The Arctic region is predicted to experience the earliest and most pronounced global warming response to human-induced climatic change, thus a better understanding is vital. - Presents a thorough understanding of the Arctic, it's past, present and future - Provides an integrated assessment of the Arctic climate system, recognizing that a true understanding of its functions lies in appreciating the interactions and linkages among its various components - Brings together many of the world's leading Arctic researchers to describe this diverse environment and its ecology
Download or read book Meddelelser Om Gr nland Bioscience written by and published by . This book was released on 1981 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bilogical Monitoring of Airborne Deposition Within and Around the Ilimaussaq Intrusion Southwest Greenland written by and published by Museum Tusculanum Press. This book was released on with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Vegetation of the Angmagssalik District Southeast Greenland written by F. J. Daniëls and published by . This book was released on with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
