... St. Petersburg, Russia Dmitri Y. Bolshiyanov Arctic & Antarctic Research Institute St. Petersburg, Russia Grigorij Fedorov Arctic & Antarctic Research Institute St. Petersburg, Russia Charlotte Jönsson Department of Quaternary ...
... been carried out at Marresale coastal sections, Yamal Peninsula, in 1997 and at Shpindler Cape coastal sections, Yugorsky Peninsula, in 1998 and 1999, respectively. The 1999 field-work After a 49 hour train ride from St. Petersburg to ...
... species prefer to lay their eggs on fast growing plant individuals and larvae growth and survival is highest on vigorous plants. When the plants grow older and senescent population densities decline and sometimes the sawfly population ...
... population dynamics, and subsequently analysed for the nitrogen and phosphorus content of the different ramet categories and plant parts. A part of this material will also be analysed for stable isotope content in collaboration with Jeff ...
... every three to five years. Most of the hypotheses put forward for these population cycles fall in to one of three categories: food, intrinsic factors or predation. The predation hypothesis suggests that predators cause the cyclic behaviour of ...
... than do their conspecifics in other areas of the distributional range. Therefore, the generalist predator category includes: the raven, the gyrfalcon, the peregrine, the merlin, the golden eagle, the Arctic skua and gulls, mainly the ...
... and potential breeders appear to differ in both north-south and east-west directions. The bird data will be more rigorously analysed for differences in the distributions of bird groups and for associations between different species as well ...
... Arctic. Nevertheless, phylogeography studies revealed several genetic groups in the collared lemming (Fedorov and Goropashnaya 1999) and in the Arctic plant Dryas integrifolia (Tremblay and Schoen 1999). Geographic distributions of these ...
... 1999 Participants Principal investigator Katarina Hedlund Department of Ecology, Lund University Sweden Dagmar Gormsen Department of Ecology, Lund University Sweden Maria Sjögren-Öhrn* Department of Ecology, Lund University Sweden ...
... Université Paul Sabatier Toulouse, France Monique Gardes* Université Paul Sabatier Toulouse, France Dagmar Gormsen Department of Ecology, Lund University Sweden Pål-Axel Olsson* Department of Microbial Ecology, Lund University ...
... if the relationship follows a normal distribution. Dates June–September 1999 Participants Principal investigator Gregory H. R. Henry* Department of Geography, University of British Vancouver, Canada Katie Breen Department of Geography, ...
... 1999 Participants Principal investigator Ulf Molau Botanical Institute, University of Gothenburg Sweden Gregory H. R. Henry* Department of Geography, University of British Vancouver, Canada Shelly Rayback Department of Geography, ...
... of Freshwater Research, Swedish University of Agricultural Sciences Drottningholm, Sweden Principal investigator Gregory H. R. Henry* Department of Geography, University of British Vancouver, Canada Principal investigator Henrik Kylin ...
... the Norwegian expedition wintered for two years. However, both our landing at Victory Point and the site on Graham Gore Peninsula (named after one of Franklin’s officers) gave a good impression of the nature of the island, with its ...
MARA, the Moveable Atmospheric Radar for Antarctica, is used to study winds, turbulence and layering in the atmosphere. After two complete years of observations at Troll, MARA was moved to the Indian station Maitri in January-February 2014. The...
... year old dinosaur trackway. Photo: Benjamin Kear 358 million year old Devonian tetrapod body trace. Photo: Grzegorz Niedzwiedzki Quaternary » Holocene (11,700 yrs to present) » Pleistocene (2.588 mya to 11,700 yrs) Neogene » Pliocene ...
... subduction and accretionary process similar to that going on today along the western margin of the Pacific Ocean (Sengor et al., 1993). Whether or not this was the case, there can be little doubt that the Neoproterozoic tectonic evolution of ...
... During the summer of 1998 we continued our project at Cape Spindler, 40 km east of the town Amderma, on the Yugorsky Peninsula. The 1998 fieldwork After transportation by airplane to Amderma the party went by bandwagon on the tundra ...
