Comparative study of moss diversity in South Shetland Islands and in the Antarctic Peninsula

Putzke, Jair; Athanásio, Camila G; Albuquerque, Margéli Pereira de; Victoria, Filipe de Carvalho; Pereira, Antônio Batista

doi:10.1186/s40693-014-0033-z

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…S. uncinata (Hedw.) is one of the most common mosses in the Antarctic region (Putzke et al 2015 ). It forms large area carpets, associated with other mosses and lichens.…”

Section: Methodsmentioning

confidence: 99%

Determination of element composition and extraterrestrial material occurrence in moss and lichen samples from King George Island (Antarctica) using reactor neutron activation analysis and SEM microscopy

Mróz

Szufa

Frontasyeva

et al. 2017

Environ Sci Pollut Res

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Seven lichens (Usnea antarctica and U. aurantiacoatra) and nine moss samples (Sanionia uncinata) collected in King George Island were analyzed using instrumental neutron activation analysis, and concentration of major and trace elements was calculated. For some elements, the concentrations observed in moss samples were higher than corresponding values reported from other sites in the Antarctica, but in the lichens, these were in the same range of concentrations. Scanning electron microscopy (SEM) and statistical analysis showed large influence of volcanic-origin particles. Also, the interplanetary cosmic particles (ICP) were observed in investigated samples, as mosses and lichens are good collectors of ICP and micrometeorites.Electronic supplementary materialThe online version of this article (10.1007/s11356-017-0431-2) contains supplementary material, which is available to authorized users.

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“…S. uncinata (Hedw.) is one of the most common mosses in the Antarctic region (Putzke et al 2015 ). It forms large area carpets, associated with other mosses and lichens.…”

Section: Methodsmentioning

confidence: 99%

Determination of element composition and extraterrestrial material occurrence in moss and lichen samples from King George Island (Antarctica) using reactor neutron activation analysis and SEM microscopy

Mróz

Szufa

Frontasyeva

et al. 2017

Environ Sci Pollut Res

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“…This could be a reflection of sanitation protocols used and the precautionary safeguards regarding the controlled use of footwear and change of clothes being effective in avoiding the presence of plant microparticles. On the other hand, the pollen material determined for the Collins Glacier and Ardley Island ecosystems are related to the surrounding cryptogamic and gramineous flora corresponding to what has been described in other studies with respect to the numerous representation of spores from mosses and lichens [28] and the abundance of the gramineous pollen from the populations of Deschampsia antarctica [15]. If we consider that the sectors studied do not cover more than 4 km 2 in total, that the pollen distribution to Antarctica from sub-Antarctic territories is a proven fact, that its random distribution is linked to the aggressive potential for dispersion of some recognized species and that our results show a pollen spectrum, in diversity and quantity, concentrated in nearby environments subject to human disturbance but not in ecosystems far from this pressure of use or under strict biosafety controls, we could infer that the transport, arrival and depositing of pollen in Antarctic soil would not only be obeying random patterns in its natural dispersion, but could be revealing an indirect measure of the degree of potential risk that the passive transport of propagules mediated by human beings and their associated equipment means under the current climate change scenario.…”

Section: Discussionmentioning

confidence: 99%

Pollen record of disturbed topsoil as an indirect measurement of the potential risk of the introduction of non-native plants in maritime Antarctica

Fuentes‐Lillo¹,

Troncoso-Castro²,

Cuba‐Díaz³

et al. 2016

Rev. Chil. de Hist. Nat.

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Background: This is a study of current pollen rain on soil disturbed by human use on the Fildes Peninsula, King George Island, South Shetland Islands. A sector strongly affected by human activity, an area between the Eduardo Frei Montalva Chilean Air Force (FACH) base and the Professor Julio Escudero base of the Chilean Antarctic Institute (INACH) were sampled. A less used sector associated with scientific activity and controlled tourism, Ardley Island, and an area of low human activity, the terminal moraine of the Collins glacier, were also sampled. The samples were collected in the southern summer of 2015 and kept in the Palynology and Plant Ecology Laboratory of the Los Angeles Campus of the Universidad de Concepción, Chile. Findings: The area of greatest human activity concentrated the greatest diversity (12 taxa) of pollen grains. Three taxa are considered native to the region. Non-native taxa determined for this sector in turn had the greatest invasion (INV) factor. The dominant families were Brassicaceae and Asteraceae. The results for Ardley and Collins represent the cryptogamic flora and grasses typical of the ecosystem. Conclusion: Under the current climate change scenario, the pollen rain in Antarctic soil, in addition to obeying the random patterns of its natural dispersion, could be interpreted as an indirect measurement of the potential risk of the passive transport of propagules to Antarctica mediated by human beings.

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“…A distribution map was generated for 35 vegetation communities of the Keller Peninsula [13], and the lichen biota dynamics of Lions Rump for the past 20 years were characterized, showing that the most significant changes had taken place in the forefield of a glacier and on the young moraines [14]. In addition, the distributions of the representative flowering plant Deschampsia antarctica [15] and of mosses [16] were surveyed and compared between the South Shetland Islands and the Antarctic Peninsula.…”

Section: Introductionmentioning

confidence: 99%

Spectral Characteristics of the Antarctic Vegetation: A Case Study of Barton Peninsula

et al. 2021

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Spectral information is a proxy for understanding the characteristics of ground targets without a potentially disruptive contact. A spectral library is a collection of this information and serves as reference data in remote sensing analyses. Although widely used, data of this type for most ground objects in polar regions are notably absent. Remote sensing data are widely used in polar research because they can provide helpful information for difficult-to-access or extensive areas. However, a lack of ground truth hinders remote sensing efforts. Accordingly, a spectral library was developed for 16 common vegetation species and decayed moss in the ice-free areas of Antarctica using a field spectrometer. In particular, the relative importance of shortwave infrared wavelengths in identifying Antarctic vegetation using spectral similarity comparisons was demonstrated. Due to the lack of available remote sensing images of the study area, simulated images were generated using the developed spectral library. Then, these images were used to evaluate the potential performance of the classification and spectral unmixing according to spectral resolution. We believe that the developed library will enhance our understanding of Antarctic vegetation and will assist in the analysis of various remote sensing data.

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Comparative study of moss diversity in South Shetland Islands and in the Antarctic Peninsula

Abstract: Background: This paper presents a comparative study of moss diversity in three collection sites in the South

Cited by 8 publications

References 6 publications

Determination of element composition and extraterrestrial material occurrence in moss and lichen samples from King George Island (Antarctica) using reactor neutron activation analysis and SEM microscopy

Determination of element composition and extraterrestrial material occurrence in moss and lichen samples from King George Island (Antarctica) using reactor neutron activation analysis and SEM microscopy

Pollen record of disturbed topsoil as an indirect measurement of the potential risk of the introduction of non-native plants in maritime Antarctica

Spectral Characteristics of the Antarctic Vegetation: A Case Study of Barton Peninsula

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