Wyniki wyszukiwania

1

Carbon dioxide in the tundra soils of SW Spitsbergen and its role in chemical denudation

100%

Pulina M., Burzyk J., Burzyk M.

Polish Polar Research

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2003

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tom 24

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nr 3-4

2

Spectral characteristics of the Arctic ornithogenic tundra vegetation in Hornsund area, SW Spitsbergen

86%

Zmudczynska K., Zwolicki A., Barcikowski M., Barcikowski A., Stempniewicz L.

Polish Polar Research

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2009

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tom 30

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nr 3

249-262

3

Evidence supporting the concept of a regionalized distribution of testate amoebae in the Arctic

86%

Beyens L., Bobrov A.

Acta Protozoologica

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2016

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tom 55

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nr 4

4

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Preservation of Arctic dinosaur remains from the Prince Creek Formation (Alaska, USA): A reply to Fiorillo (2016)

86%

Mori H., Druckenmiller P. S., Erickson G. M.

Acta Palaeontologica Polonica

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2016

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tom 61

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nr 1

5

Snow distribution patterns on Svalbard glaciers derived from radio-echo soundings

86%

Grabiec M., Puczko D., Budzik T., Gajek G.

Polish Polar Research

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2011

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tom 32

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nr 4

6

Changing Arctic. Firm scientific evidence versus public interest in the issue. Where is the gap?

86%

Pakszys P., Zielinski T., Ferrero L., Kotynska-Zielinska I., Wichorowski M.

Oceanologia

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2020

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tom 62

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nr 4PB

7

Climatic conditions of the north-western part of Oscar II Land [Spitsbergen] in the period between 1975 and 2000

86%

Przybylak R., Arazny A.

Polish Polar Research

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2006

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tom 27

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nr 2

133-152

The paper describes climatic conditions of the north-western part of Oscar II Land (Spitsbergen) based on meteorological data from 1975 to 2000, which were taken from Ny Alesund and Kaffioyra-Heggodden stations. The changes in annual courses of main climatic elements are investigated. However, the authors focused mainly on the analysis of summer climate, because most of the field work is conducted at this time of the year. Aside from the standard climatic analysis, the influence of atmospheric circulation on selected meteorological elements was also investigated. The climate of the north-western part of Oscar II Land was compared with the climates of the remaining areas of the western coast of Spitsbergen. It was found that the climate of the studied area differs considerably from the climate of the central-inner and southern parts of the western coast of Spitsbergen (areas represented by the Svalbard Lufthavn and Hornsund stations respectively). The differences in climatic elements, however, are not stable throughout the year and in particular seasons and months can even change signs. Thus, any generalisation of results obtained based on seasonal data is inadmissible. It was also found that the wind conditions of the Kaffioyrare- gion are more representative of the north-western part of Oscar II Land than are the wind conditions of the Ny Alesund region.

8

Uric acid in the surface waters of Spitsbergen and its role in the dissolution processes which affect carbonate rocks

86%

Burzyk M., Pulina M., Sajewicz M., Zjawiony I.

Polish Polar Research

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2006

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tom 27

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nr 4

327-340

Using High Performance Liquid Chromatography, concentrations of uric acid in the surface waters of two non-glaciated catchments (Fugle and Dynamisk) on Spitsbergen were measured. Measurements of specific conductivity enabled us to perform tests on the dissolution of the carbonate rocks present in both catchments in both natural and aqueous solutions of uric acid. Samples of calcium urate were made and its water solubility determined. Given a knowledge of concentrations of uric acid. calcium ions and calcium urate solubility product. an estimate of the role of uric acid in the dissolution of carbonate rocks was possible. Uric acid increases the dissolution of carbonate rocks by c. 12.5% in case of the Fugle catchment and 7% in Dynamisk.

9

Comment on “A new Arctic hadrosaurid from the Prince Creek Formation (lower Maastrichtian) of northern Alaska” by Hirotsugu Mori, Patrick S. Druckenmiller, and Gregory M. Erickson

86%

Fiorillo A. R.

Acta Palaeontologica Polonica

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2016

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tom 61

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nr 1

10

Patchiness of sympagic algae and meiofauna from the fast ice of North Open Water [NOW] Polynya

86%

Wiktor J., Szymelfenig M.

Polish Polar Research

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2002

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tom 23

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nr 2

175-184

11

Perception of Arctic issues among young learners in Poland and Lithuania

86%

Kotynska-Zielinska I., Olenin S., Fornalewicz K., Pradzinska A., Weslawski J. M.

Oceanologia

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2020

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tom 62

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nr 4PB

12

Fauna of Bryozoa from Kongsfjorden, West Spitsbergen

86%

Kuklinski P.

Polish Polar Research

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2002

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tom 23

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nr 2

193-206

13

Recent benthic Ostracoda from Hornsund, south Spitsbergen, Svalbard Archipelago

86%

Mackiewicz A.

Polish Polar Research

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2006

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tom 27

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nr 1

71-90

This paper includes a check-list of Recent Svalbard marine ostracods based on published sources and on diploma theses as well as some new studies. This is the first study of this group of crustaceans from Hornsund. A total of 41 species belonging to 12 families were collected at 55 sampling stations from dredged sediments. Seven species are reported for the first time from the Svalbard Archipelago. Polycope orbicularis Sars is the most abundant species in the present fauna. Species compositions of Hornsund and the Liefde- fjorden are seen to have the highest similarity (S = 50.6).

14

Selected methods in mass balance estimation of Waldemar Glacier, Spitsbergen

86%

Sobota I.

Polish Polar Research

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2007

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tom 28

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nr 4

249-268

Traditional mass balance measurements by stake readings and snow surveying have been conducted annually since 1996 on the Waldemar Glacier (= Waldemarbreen) in northwest Spitsbergen, Svalbard. Several indirect methods were also used for estimating its mass balance. These methods were divided into two major groups: climatological and geodetic. A comparison of the latest map (2000) with that of 1978 and climatological records enable us to calculate the change in the mass balance of Waldemarbreen over 34 years. These methods include air temperature and degree-day (PDD) models. The average mass balance of Waldemarbreen, computed by climatological methods, was -0.42 m a-1 of water equivalent (w.e.) for the period 1970-2004, and -0.51 m w.e. for 1996-2004. These balances were compared with the glaciological balance for the period 1996-2004, -0.53 m w.e.. The mass balance was also computed using geodetic method, giving -0.52 m of w.e. from 1978 to 2000. It is suggested that, from these results, the approach used for Waldemarbreen might be also useful for estimation the mass balances of other small Svalbard glaciers which terminate on land.

15

Shallow sublittoral macrozoobenthos in Kongsfjord, West Spitsbergen, Svalbard

86%

Kaczmarek H., Wlodarska-Kowalczuk M., Legezynska J., Zajaczkowski M.

Polish Polar Research

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2005

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tom 26

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nr 2

137-155

The shallow water benthic fauna was collected in Kongsfjord, West Spitsbergen. Sampling was conducted along two main environmental gradients: vertical gradient (depth 5-50 m) and horizontal gradient (sedimentation regime) along the fjord axis. A small rectangular dredge was used. Altogether 169 taxa were identified and four macrofaunal associations were distinguished. Bottom type and distance from the tidal glaciers seem to be the main factors responsible for species distribution. The Soft Bottom I Association occupying the fine mud of the Kongsbreen glacial bay consisted mostly of Crustacea with high dominance of scavenging amphipod Onisimus caricus. Bivalves prevailed in the Soft Bottom II Association, located further away from the main glacier outflows. The barren rocky shelf, deprived of vegetation by a sea urchin Strongylocentrotus droebachiensis was inhabited by the Rocky Shelf Association dominated by decapods. The last distinguished association (the Kelp Association) occurred on the hard bottom overgrown with macroalgae. The gastropod Margarites helicinus and amphipods Ischyrocerus spp. made up 60% of the individuals collected there.

16

Life cycles of some Arctic amphipods

86%

Weslawski J. M., Legezynska J.

Polish Polar Research

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2002

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tom 23

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nr 3-4

253-264

17

Recent alterations of aerosol concentration, mercury distribution and organic matter deposition in the Arctic

86%

Pempkowiak J., Zielinski T., Petelski T., Zaborska A., Beldowski J.

Papers on Global Change

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2011

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nr 18

Material fluxes in the Arctic and Antarctic have been, in several respects, strongly affected recently. For example, atmospheric turbidity conditions are frequently subject to strong changes due to haze and dust transport episodes, which can cause considerable perturbations in the radiation balance of the atmosphere beyond regional scale. This, directly or indirectly, contributes to the increased mercury deposition and organic matter fluxes to sediments. The results show that local emissions are not always the most important factors influencing the composition of aerosol in the atmosphere of the west Spitsbergen region. The direct radiative impact of polar aerosols on the surface and at the top of the atmosphere (TOA) need to be studied more closely through both theoretical studies on the aerosol radiative properties and measurements of the surface reflectance characteristics. Mercury dissolved/solid partitioning, both in the unconsolidated, fluffy layer of suspended matter covering the sediments, and the uppermost sediment layer, indicate that the influence of the athmospheric mercury deposition event (AMDE) can prolong well into summer (July/August), and can provide a pathway to the food chain for mercury contained in sediments. Since terrigenous supplies of organic carbon to the Barents Sea are minor (∼5%) compared to the marine supply, modern sediment deposits in this region sequester on average 6.0 g/m2year organic carbon, or 5.8% of the annual integrated pelagic primary production. This burial fraction exceeds, by a factor of 3, the burial fraction derived for the Holocene.

18

Interactions driving the population cycle of Arctic small rodents

86%

Garding L.

Polish Journal of Ecology

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2005

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tom 53

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nr 4

The cyclicity of Arctic populations of small rodents is a subject with a long history and a large literature (Batzli,1992) in which the question ‘What drives the cycle?’ has received many answers, among them that the source of the cycle is either rodent interaction with food or the interaction with predators or both. Another question concerns the confinement of the cycle to Arctic conditions. The paper by Gårding (2000) presented a simple mathematical model of the combined predator-prey-food interaction based on a general eater-food interaction in which cycle length is an explicit decreasing function of the average birth rate of eaters. In the combined interaction, the cycle length is the same function of the sum of the average birth rates of predators and prey. Numerical fits of these models make it possible to answer the questions above. The results are that the short 3–5 year cycles of the Arctic rodents: lemming (Lemmus lemmus) and vole (Microtus agrestis) are mainly driven by interaction with food while the ten year cycle of the Canadian snowshoe hare (Lepus americanus), is driven by interaction with its predator – lynx. Rodents in the Arctic live and breed in burrows and experience predation pressure when surfacing. This explains their interaction with food. The greater variety and easier availability of food in a temperate climate accounts for a missing rodent interaction with food. The paper starts with a presentation of the eater-food interaction model itself, its simple but unfamiliar mathematics and its points of credibility. At the end of the paper some current hypotheses about the nature of the rodent cycle are seen in the light of the model used here.

19

The long-lasting resistence of diapausing eggs from Arctic Cladocera frozen at minus 18 degrees Celsius

86%

Meijering M. P. D.

Polish Polar Research

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2003

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tom 24

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nr 2

20

Dryadicolous microfungi from Greenland. I. List of species

86%

Chlebicki A., Knudsen H.

Acta Societatis Botanicorum Poloniae

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2001

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tom 70

|

nr 4

Ograniczanie wyników

Carbon dioxide in the tundra soils of SW Spitsbergen and its role in chemical denudation

Spectral characteristics of the Arctic ornithogenic tundra vegetation in Hornsund area, SW Spitsbergen

Evidence supporting the concept of a regionalized distribution of testate amoebae in the Arctic