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Publisher : Museum Tusculanum Press
ISBN 13 : 9788763511513
Total Pages : 40 pages
Book Rating : 4.5/5 (115 download)
Download or read book Lichens from Central East Greenland written by and published by Museum Tusculanum Press. This book was released on with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Museum Tusculanum Press
ISBN 13 : 9788763511476
Total Pages : 88 pages
Book Rating : 4.5/5 (114 download)
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:
Author :
Publisher : Museum Tusculanum Press
ISBN 13 : 9788763511827
Total Pages : 36 pages
Book Rating : 4.5/5 (118 download)
Download or read book The Lichen Genus Physcia and Allied Genera in Greenland written by and published by Museum Tusculanum Press. This book was released on with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. E. Longton
Publisher : CUP Archive
ISBN 13 : 9780521250153
Total Pages : 406 pages
Book Rating : 4.2/5 (51 download)
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.
Author : George Albert Llano
Publisher :
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.3/5 (91 download)
Download or read book A Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere written by George Albert Llano and published by . This book was released on 1950 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Arctic Institute of North America
Publisher :
ISBN 13 :
Total Pages : 1526 pages
Book Rating : 4.3/5 (91 download)
Download or read book Arctic Bibliography written by Arctic Institute of North America and published by . This book was released on 1953 with total page 1526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William A. Burnham
Publisher : Museum Tusculanum Press
ISBN 13 : 9788763511629
Total Pages : 32 pages
Book Rating : 4.5/5 (116 download)
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.
Author : Arne Thell
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.3/5 (91 download)
Download or read book Diversity of Lichenology written by Arne Thell and published by . This book was released on 2009 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 100th anniversary volume of Bibliotheca Lichenologica, pays tribute to the diversity in lichenology. Multiple, cosmopolitan aspects of the research on lichens in its breadth are reflected in the large variety of subjects covered in 18 chapters by 37 authors from 13 countries. The chapters document recent developments in taxonomy, phytogenetic analyses, phylogenetic research, fl oristic studies and lichen ecology, and - again - a large number of newly described taxa, keys to the identifi cation of Usnea, and details of current analytical work. A personal review by Ingvar Kärnefelt of past and present contributors to lichenology. His biographical sketches provide a good measure of the multi-faceted nature of lichenology and of the expertise involved in its development, paying tribute to Bibliotheca Lichenologica's anniversary. The volume was carefully edited by three prominent and active members of the lichenological community, Arne Thell, University of Lund, Sweden, Mark R. D. Seaward, University of Bradford, United Kingdom, and Tassilo Feuerer, University of Hamburg, Germany.
Author : Jayne Belnap
Publisher : Springer Science & Business Media
ISBN 13 : 3642564755
Total Pages : 496 pages
Book Rating : 4.6/5 (425 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 976 pages
Book Rating : 4.:/5 (27 download)
Download or read book Skrifter om Svalbard og Nordishavet written by and published by . This book was released on 1927 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karl Esser
Publisher : Springer Science & Business Media
ISBN 13 : 3642716687
Total Pages : 457 pages
Book Rating : 4.6/5 (427 download)
Download or read book Progress in Botany written by Karl Esser and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.3/5 (21 download)
Download or read book Meddelelser Om Grønland written by and published by . This book was released on 1978 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dalip Kumar Upreti
Publisher : Springer
ISBN 13 : 8132221818
Total Pages : 273 pages
Book Rating : 4.1/5 (322 download)
Download or read book Recent Advances in Lichenology written by Dalip Kumar Upreti and published by Springer. This book was released on 2014-12-18 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Author : Aage Gilberg
Publisher :
ISBN 13 :
Total Pages : 850 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Polar Eskimos' Eyes written by Aage Gilberg and published by . This book was released on 1975 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Walter Thomson
Publisher : Columbia University Press
ISBN 13 : 9780231058889
Total Pages : 532 pages
Book Rating : 4.0/5 (588 download)
Download or read book American Arctic Lichens: The macrolichens written by John Walter Thomson and published by Columbia University Press. This book was released on 1984 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists a total of 965 species in 168 genera in the two volumes, describing the species including distribution maps covering Alaska, Canada, Greenland and Iceland. Includes an overview of the geology, climate, geography and ecology of the American arctic.
Author : Bent Fredskild
Publisher : Museum Tusculanum Press
ISBN 13 : 9788763512473
Total Pages : 88 pages
Book Rating : 4.5/5 (124 download)
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: .
Author :
Publisher : Museum Tusculanum Press
ISBN 13 : 9788763511544
Total Pages : 28 pages
Book Rating : 4.5/5 (115 download)
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:
