Growth, condition and energy stores of Arctic grayling fry inhabiting natural and artificial constructed Arctic tundra streams
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چکیده
منابع مشابه
Arctic tundra fires: natural variability and responses to climate change
© The Ecological Society of America www.frontiersinecology.org A surveying scientists working in the Far North for tundra-fire observations and examining Canadian Government fire records, pioneer Arctic ecologist Ross Wein concluded that “tundra fires occurred infrequently, and were invariably small in areal extent... Little is known about the ecological significance of tundra fires” (Wein 1976...
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Bacterioplankton community composition was compared across 10 lakes and 14 streams within the catchment of Toolik Lake, a tundra lake in Arctic Alaska, during seven surveys conducted over three years using denaturing gradient gel electrophoresis (DGGE) of PCR-amplified rDNA. Bacterioplankton communities in streams draining tundra were very different than those in streams draining lakes. Communi...
متن کاملCO2 exchange between wet arctic tundra and the atmosphere
The exchange of carbon dioxide between wet arctic tundra and the atmosphere at the Lena River Delta, Northern Siberia L. Kutzbach, C. Wille, and E.-M. Pfeiffer Alfred Wegener Institute for Polar and Marine Research, Research Unit Potsdam, Telegrafenberg A43, 14473 Potsdam, Germany University of Hamburg, Institute of Soil Science, Allende-Platz 2, 20146 Hamburg, Germany now at: Ernst Moritz Arnd...
متن کاملCircumpolar Tundra and Its Largest Pan-Arctic river
The Arctic freshwater budget is critical for understanding the climate in the northern 22 regions. However, the hydrology of the Arctic circumpolar tundra region (ACTR) and the largest 23 pan-Arctic rivers are still not well understood. In the present paper, we analyze the spatiotemporal 24 variations in terrestrial water storage (TWS) of the ACTR, including three of its largest pan-Arctic 25 r...
متن کاملMicrobial community composition and function across an arctic tundra landscape.
Arctic landscapes are characterized by a diversity of ecosystems, which differ in plant species composition, litter biochemistry, and biogeochemical cycling rates. Tundra ecosystems differing in plant composition should contain compositionally and functionally distinct microbial communities that differentially transform dissolved organic matter as it moves downslope from dry, upland to wet, low...
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ژورنال
عنوان ژورنال: Limnologica
سال: 2011
ISSN: 0075-9511
DOI: 10.1016/j.limno.2010.07.003