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:
Download or read book Notes on Occurrence and Distribution of Lichens in South East Greenland written by Eric Steen Hansen and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Notes on Occurrence and Distribution of Lichens in South East Greenland written by Denmark. Kommissionen for videnskabelige undersøgelser i Grønland and published by . This book was released on 1920 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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 American Arctic Lichens The microlichens written by John Walter Thomson and published by Univ of Wisconsin Press. This book was released on 1984 with total page 696 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.
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 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 Illustrated Moss Flora of Arctic North America and Greenland written by Gert S. Mogensen and published by Museum Tusculanum Press. This book was released on 1985 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 Greenland Lichens written by Eric Steen Hansen and published by . This book was released on 1995 with total page 136 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 Nova Hedwigia written by and published by . This book was released on 1997 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeitschrift für Krypotgamenkunde.
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 Marine Flora and Fauna of the Northeastern United States lichens Ascomycetes of the Intertidal Region written by Ronald M. Taylor and published by . This book was released on 1982 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meddelelser Om Gr nland written by and published by . This book was released on 1986 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
