Factors Affecting the Availability of Plant Nutrients on an Antarctic Island

Allen, S. E.; Grimshaw, H. M.; Holdgate, M. W.

doi:10.2307/2257883

Cited by 76 publications

(47 citation statements)

References 18 publications

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“…The mean total values of Ca, Mg, Fe, Zn and Mn were similar to those reported in previous works in maritime Antarctica (Table 5). However, the values of P, K, Cu obtained in the present study were higher than those reported in the literature (Simas, 2006;Poblet et al, 1997;Allen et al, 1967;Tatur et al, 1997). In general, most elements had a wide range of values depending on the site characteristics and the age of plant communities.…”

Section: Soil-plant and Landscape Relationshipscontrasting

confidence: 81%

“…The humic horizons, formed by the cycling of the biomass of mosses, serve as reservoirs of nutrients in organic colloids (Allen et al, 1967), which depend on the contribution of the elements via precipitation and snow melt channels. The concentrations of elements in moss samples often reflect the biogeochemical nature of soils and rocks rather than atmospheric input of elements (Bargagli, 2005).…”

Section: Discussionmentioning

confidence: 99%

“…There, Polytrichales and Sanionia formed thick, uniform carpets (P14) (Fig. 4a) Poblet et al (1997), d Allen et al (1967), e Tatur et al (1997).…”

Section: Tall Moss Turf and Carpet Sub-formationmentioning

confidence: 99%

“…The most important sites are coastal penguin rookeries, which provide suitable conditions for plant diversity in their marginal areas (Allen et al, 1967;Tatur and Myrcha, 1989;Tatur et al, 1997;Michel et al, 2006;Smykla et al, 2007;Simas et al, 2007;Victoria et al, 2013). As one moves inland, the vegetation becomes progressively sparse and less structured.…”

Section: Introductionmentioning

confidence: 99%

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Soil–landform–plant-community relationships of a periglacial landscape on Potter Peninsula, maritime Antarctica

et al. 2015

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Abstract. Integrated studies on the interplay between soils, periglacial geomorphology and plant communities are crucial for the understanding of climate change effects on terrestrial ecosystems of maritime Antarctica, one of the most sensitive areas to global warming. Knowledge on physical environmental factors that influence plant communities can greatly benefit studies on the monitoring of climate change in maritime Antarctica, where new ice-free areas are being constantly exposed, allowing plant growth and organic carbon inputs. The relationship between topography, plant communities and soils was investigated on Potter Peninsula, King George Island, maritime Antarctica. We mapped the occurrence and distribution of plant communities and identified soil-landform-vegetation relationships. The vegetation map was obtained by classification of a QuickBird image, coupled with detailed landform and characterization of 18 soil profiles. The sub-formations were identified and classified, and we also determined the total elemental composition of lichens, mosses and grasses. Plant communities on Potter Peninsula occupy 23 % of the ice-free area, at different landscape positions, showing decreasing diversity and biomass from the coastal zone to inland areas where sub-desert conditions prevail. There is a clear dependency between landform and vegetated soils. Soils that have greater moisture or are poorly drained, and with acid to neutral pH, are favourable for moss sub-formations. Saline, organic-matterrich ornithogenic soils of former penguin rookeries have greater biomass and diversity, with mixed associations of mosses and grasses, while stable felsenmeers and flat rocky cryoplanation surfaces are the preferred sites for Usnea and Himantormia lugubris lichens at the highest surface. Lichens sub-formations cover the largest vegetated area, showing varying associations with mosses.

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Section: Soil-plant and Landscape Relationshipscontrasting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

“…There, Polytrichales and Sanionia formed thick, uniform carpets (P14) (Fig. 4a) Poblet et al (1997), d Allen et al (1967), e Tatur et al (1997).…”

Section: Tall Moss Turf and Carpet Sub-formationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil–landform–plant-community relationships of a periglacial landscape on Potter Peninsula, maritime Antarctica

et al. 2015

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“…Seabirds and marine mammals, such as penguins and seals, feed in the surrounding ocean and reproduce and rest on land. There, they deposit large quantities of excrement (guano) and other organic material such as feathers, eggs and carcasses, hence fertilizing the otherwise nutrient-poor terrestrial ecosystem (Allen et al 1967, Smith 1985, Myrcha et al 1985, Myrcha et Tatur 1991, Tatur 2002, Zmudczyńska et al 2012. For instance, Tatur (2002) reported that the 30 -50,000 pairs of Pygoscelis penguins nesting on the west shore of Admiralty Bay, King George Island, maritime Antarctic deposited about 6.35 tonnes of guano (dry mass equivalent) on the land daily.…”

Section: Seabird Influence On Antarctic Terrestrial Ecosystemsmentioning

confidence: 99%

Diversity of microfungi in ornithogenic soils from Beaufort Island, continental Antarctic

Alias

Smykla²,

Ming³

et al. 2013

Czech Polar Rep.

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This paper presents the results of a biodiversity study of microfungi in ornithogenic soils from Beaufort Island (Ross Sea, continental Antarctic). During the 2004/05 austral summer, we sampled a wide range of soil habitats from an abandoned penguin rookeries to examine the biodiversity of soil microfungi. Beaufort Island is predominantly ice and snow covered, isolated, difficult to access and known to have been visited only infrequently. Warcup's soil plating method was used for fungal cultivation. A total of ten fungal taxa were isolated, consisting of seven ascomycetes, two anamorphic fungi and one yeast. In terms of their thermal classes, a total of four psychrophilic, five psychrotolerant and 1 mesophilic fungi were isolated. Thelebolus microsporus, Geomyces sp. and Thelebolus sp. were the most common isolated fungi. Internal Transcribed Spacer (ITS) and 18S rDNA sequences were obtained from 17 fungal isolates, confirming their identification as Thelebolus microsporus, Thelebolus sp., Phoma herbarum and Geomyces sp.

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Bodenbiologie hoher Breiten

Bölter

Blume

2018

Handbuch Der Bodenkunde

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Factors Affecting the Availability of Plant Nutrients on an Antarctic Island

Cited by 76 publications

References 18 publications

Soil–landform–plant-community relationships of a periglacial landscape on Potter Peninsula, maritime Antarctica

Soil–landform–plant-community relationships of a periglacial landscape on Potter Peninsula, maritime Antarctica

Diversity of microfungi in ornithogenic soils from Beaufort Island, continental Antarctic

Bodenbiologie hoher Breiten

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