Results 111 to 120 of about 34,348 (282)
Boreas, EarlyView.Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein +19 more
wiley +1 more source
Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century
Fisheries Management and Ecology, EarlyView.ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett +2 more
wiley +1 more source
Microbial Ecology of Permafrost Soils: Populations, Processes, and Perspectives
Permafrost microbial research has flourished in the past decades, due in part to improvements in sampling and molecular techniques, but also the increased focus on the permafrost greenhouse gas feedback to climate change and other ecological processes in
Leewis, MC +33 more
core +1 more source
Journal of Phycology, EarlyView.Abstract Colored snow caused by green algae (Chlorophyceae) is well known, but melting snowpacks can also harbor golden‐brown blooms consisting of Chrysophyceae. We collected 14 samples of cryoflora in the Austrian and Swiss Alps, the High Tatras in Slovakia, and in Arctic Svalbard. Eight laboratory unicellular flagellated strains were established from
Lenka Procházková +6 more
wiley +1 more source
Permafrost, Vol. 16 (Spring 1994)
, 1994 This issue of Permafrost was funded by grants from the Alaska State Council on the Arts and the Associated Students of the University of Alaska.[Fiction] -- Dinosaur Motel / Richard Willett -- A Simple Matter / Deborah Adelman -- Considering Work / Tom ...
Alaska Association for the Arts
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The Thermal State of Permafrost in the Nordic Area during the International Polar Year 2007-2009
, 2010 This paper provides a snapshot of the permafrost thermal state in the Nordic area obtained during the International Polar Year (IPY) 2007-2009. Several intensive research campaigns were undertaken within a variety of projects in the Nordic countries to ...
M. Johansson +63 more
core +1 more source
Search for impact ejecta at the Paleocene–Eocene boundary
Meteoritics &Planetary Science, EarlyView.Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz +6 more
wiley +1 more source
Arctic ScienceThis study investigates the impact of large herbivores on soil organic matter (OM) stability in Arctic permafrost and seasonally frozen ground ecosystems, focusing on the potential preservation effect of grazing. Soil samples were collected from Siberian
Torben Windirsch +5 more
doaj +1 more source
Environmental influences on the maximum quantum yield of terrestrial primary production
New Phytologist, EarlyView.Temperature and aridity effects on terrestrial ecosystems' intrinsic quantum yield. Summary Historically, terrestrial biosphere models (TBMs) have assigned the intrinsic (maximum) quantum yield of photosynthesis (ϕ0)$$ {\phi}_0\Big) $$ a constant value for each plant functional type. However, experimental studies have shown that ϕ0$$ {\phi}_0 $$ – when
David Sandoval +3 more
wiley +1 more source
, 2001 Pennafrostwould like to thank to the University of Alaska-Fairbanks Provost's Office and Associated Students of the University of Alaska-Fairbanks (ASUAF) for their funding and support.[Poetry] -- All the New Eyes We Wanted / Jesse Lee Kercheval -- Thank
Alaska Association for the Arts
core