Contemporary Changes in Vegetation of Polar Regions

Olech, Maria; Węgrzyn, Maria; Lisowska, Maja; Słaby, Agnieszka; Angiel, Piotr J.

doi:10.2478/v10190-010-0003-8

Cited by 16 publications

(13 citation statements)

References 18 publications

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“…In our case, succession seems to have nearly reached a mature stage after only approximately 100 years. In the other parts of Svalbard, succession was only partly similar to our se− quence with a higher occurrence of cryptogams in the more oceanic parts (Olech et al 2011) and the absence of Dryas octopetala on acidic substrates (Ziaja and Dubiel 1996).…”

Section: Stellaria Crassipes Ii-viimentioning

confidence: 92%

“…In Svalbard, several studies were performed in the nortwestern part near Ny−Ålesund (e.g. Hodkinson et al 2003;Moreau et al 2009;Nakatsubo et al 2011), the central−western near Longyearbyen (Ziaja and Dubiel 1996), the southwestern part (Olech et al 2011) and in southeastern Svalbard (Ziaja et al 2009). Around Petunia Bay, where our study was performed, detailed data exist on the rate of glaciers retreat (Rachlewicz et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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Succession of vascular plants in front of retreating glaciers in central Spitsbergen

Prach¹,

Rachlewicz²

2012

Polish Polar Research

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Vegetation succession in front of five retreating glaciers was studied using phytosociological relevés (60) located at different distances between the Little Ice Age (LIA) moraines and the present glacier fronts around Petunia Bay. Approximate dating of succession stages was based on a study of the changing position of glacier fronts in the past approximately 100 years. The described succession corresponds to the uni−directional, non−replacement model of succession. All constituent species, except one, present in the nearby old tundra have colonized the glacier forelands since the end of the LIA. The first species appeared about 5 years after deglaciation. The latest succession stages closely re− semble the old tundra.

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Section: Stellaria Crassipes Ii-viimentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Succession of vascular plants in front of retreating glaciers in central Spitsbergen

Prach¹,

Rachlewicz²

2012

Polish Polar Research

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“…In areas characterized by low primary production and very slow decomposition processes, the availability of soil nutrients is almost negligible. However, additional sources of macroelements, by the presence of numerous seabirds whose excrements fertilize the area around their breeding colonies, affect development of the specific plant communities of ornithocoprophilous tundra receiving extremely high loadings of nitrogen and phosphorus (Olech et al 2011). According to Baddeley et al (1994) S. polaris in particular was very responsive to nitrogen and phosphorus inputs, showing an increase in biomass.…”

Section: Discussionmentioning

confidence: 99%

Metals in some dominant vascular plants, mosses, lichens, algae, and the biological soil crust in various types of terrestrial tundra, SW Spitsbergen, Norway

Wojtuń¹,

Samecka-Cymerman²,

Kolon³

et al. 2013

Polar Biol

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Arctic environments are commonly considered to be relatively pristine because of minimal local human activity. However, these areas receive air pollution from lower latitude regions. Our goal was to determine concentrations of metals (Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, and Zn) in dominant species of vascular plants, mosses, lichens, algae, and in the biological soil crust (BSC), and topsoil (0-3 cm) from various types of tundra in the southwestern part of Spitsbergen, Norway. Results indicate that mosses are more efficient bioaccumulators of Cd, Co, Cr, Cu, Fe, Mn, and Zn than lichens. The highest levels of Co, Cr, Cu, Fe, Hg, Mn, Ni, and Pb were found in the BSC, and the moss species Racomitrium lanuginosum, Sanionia uncinata, and Straminergon stramineum from the polygonal tundra, initial cyanobacteria-moss wet tundra, snow bed cyanobacteria-moss tundra, and flow water moss tundra alimented by melting ice or snow. The observed higher concentrations of Cu and lower concentrations of Hg in mosses, lichens, and vascular plants compared with values observed 20 years earlier were apparently associated with changes in the atmospheric deposition of contaminants over Spitsbergen due to changes in the long-distance transport of anthropogenic emissions from industrialized areas. Prasiola crispa and Salix polaris may be useful bioindicators of Cd and Zn, and the BSC, R. lanuginosum, S. uncinata, and S. stramineum as bioindicators of Co, Cr, Cu, Fe, Hg, Mn, Ni, and Pb. These results may be extrapolated across other areas of Spitsbergen with similar climates.

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“…The analyses were performed using StatSoft, Inc. (2011) erence Latitude 0. The applied method described above was used before to deter− mine the boundaries of plant communities Olech et al 2011). The current coastline and the main proglacial river were marked on the map.…”

Section: Introductionmentioning

confidence: 99%

Pygoscelid penguins breeding distribution and population trends at Lions Rump rookery, King George Island

Korczak−Abshire¹,

Węgrzyn²,

Angiel³

et al. 2013

Polish Polar Research

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Long term changes (46 years) in the abundance of pygoscelid penguins breeding populations and nests distribution in the Lions Rump (King George Island) colony were in− vestigated in three time intervals, according to previously published two censuses and one original study conducted in 2010. At that time a detailed colony map based on the GIS system was made. Results of this study showed different trends for each investigated species. In the last three decades Adélie penguin breeding populations showed strong declining tendencies (69.61%). In contrast, the population of gentoo penguins represents the reverse trend, increas− ing 171.85% over the same period. Observed changes in both penguin population sizes are re− flected in the different spatial and geographic distribution of their nests. The population changes observed at the Lions Rump colony are consistent with the relevant pygoscelid pen− guin tendencies in the western Antarctic Peninsula region. Breeding penguin population dy− namics at Lions Rump area with a minimal disturbance by human activity may well illustrate a natural response of those birds to environmental changes in the Antarctic.

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Contemporary Changes in Vegetation of Polar Regions

Cited by 16 publications

References 18 publications

Succession of vascular plants in front of retreating glaciers in central Spitsbergen

Succession of vascular plants in front of retreating glaciers in central Spitsbergen

Metals in some dominant vascular plants, mosses, lichens, algae, and the biological soil crust in various types of terrestrial tundra, SW Spitsbergen, Norway

Pygoscelid penguins breeding distribution and population trends at Lions Rump rookery, King George Island

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