The Vegetation of the South Shetland Islands and the Climatic Change

Putzke, Jair; Pereira, Antônio Batista

doi:10.5772/intechopen.94269

Cited by 4 publications

(5 citation statements)

References 48 publications

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“…S. uncinata is considered the most abundant moss on King George Island (Ochyra 1998). It is a bipolar and alpine species that is widely distributed in Antarctica (Ochyra 1998), where it occurs in a wide variety of habitats including exposed rocky surfaces, wet locations near streams (Nakatsubo & Ohtani 1992), substrates rich in organic matter, on beaches and coastal terraces and close to bird colonies (Putzke & Pereira 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Admiralty Bay is the largest of the bays on King George Island, with a surface area of 122.08 km 2 and coastline of 83.4 km (Rakusa-Suszczewski 1980a, 1980b, 1987, Marsz & Rakusa-Suszczewski 1987). The degree of shelter provided in the bay results in a very distinct microclimate in comparison with other parts of the island, especially in relation to wind exposure (Smith 1972, Putzke & Pereira 2001).…”

Section: Methodsmentioning

confidence: 99%

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Patterns of moss richness in Admiralty Bay, King George Island, cannot be explained by geological or ornithogenic drivers alone

et al. 2022

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We set out to document the diversity and distribution of bryophytes in Admiralty Bay and thereby enable the identification of patterns in local diversity and their possible drivers. Combining data extracted from different sources and recent collections, we documented the presence of 63 species. Similarity analyses of moss species diversity in relation to underlying geology and ornithogenic influence identified an identical cophenetic correlation coefficient of 0.744 for both factors. The Sørensen index was < 0.6, indicating that the groups share < 60% of the species recorded. The data showed that the selected filters (ornithogenic soils, non-ornithogenic soils and different geological extracts) did not underlie consistent species groupings, and we conclude that other environmental and topographical factors are likely to be responsible for shaping the moss community structure in Admiralty Bay. To enable effective management of Antarctic Specially Managed Area (ASMA) No. 1 and Antarctic Specially Protected Area (ASPA) No. 128, robust assessments of the local ecosystem and biodiversity are necessary to assist in the decision-making processes mandated under the Antarctic Treaty System, one of whose founding principles is the preservation of the Antarctic ecosystem.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Patterns of moss richness in Admiralty Bay, King George Island, cannot be explained by geological or ornithogenic drivers alone

et al. 2022

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“…Livingston Island harbors a highly diverse terrestrial and lacustrine flora and fauna 51 . Plant species are confined to ice-free areas, and are expanding in regions experiencing greater ice retreat, more favourable temperatures, and the influence of seabird colonies 51 . On Hurd Peninsula, Miers Bluff hosts a Chinstrap penguin colony on its coastal area.…”

Section: Methodsmentioning

confidence: 99%

ShetlandsUAVmetry: unmanned aerial vehicle-based photogrammetric dataset for Antarctic environmental research

Román,

Navarro,

Tovar-Sánchez

et al. 2024

Sci Data

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The study of the functioning and responses of Antarctica to the current climate change scenario is a priority and a challenge for the scientific community aiming to predict and mitigate impacts at a regional and global scale. Due to the difficulty of obtaining aerial data in such extreme, remote, and difficult-to-reach region of the planet, the development of remote sensing techniques with Unmanned Aerial Vehicles (UAVs) has revolutionized polar research. ShetlandsUAVmetry comprises original datasets collected by UAVs during the Spanish Antarctic Campaign 2021–2022 (January to March 2022), along with the photogrammetric products resulting from their processing. It includes data recorded during twenty-eight distinct UAV flights at various study sites on Deception and Livingston islands (South Shetland Islands, Antarctica) and consists of a total of 15,691 high-resolution optical RGB captures. In addition, this dataset is accompanied by additional associated files that facilitate its use and accessibility. It is publicly accessible and can be downloaded from the figshare data repository.

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“…In spite of the early XX century cooling event, the air temperatures are still increasing in the whole Antarctic continent and mainly in the AP region (e.g., Clem et al, 2020; IPCC, 2019; Turner et al, 2016), impacting sea temperature (e.g., Auger et al, 2021; Kejna et al, 2013; Meredith & King, 2005; Turner et al, 2013), glacier mass balance (e.g., Abram et al, 2013; Engel et al, 2018; Molina et al, 2007; Navarro et al, 2013), terrestrial biology (e.g., Convey & Smith, 2009; Putzke & Pereira, 2020; Sancho et al, 2017; Snyder & Callaham, 2019), edafology (e.g., González‐Guzmán et al, 2017), and ground thermal regime (e.g., Bockheim et al, 2013; Vieira et al, 2010). Changes in the ground thermal regime have also been shown to impact the geomorphological dynamics in the ice‐free areas of the AP (e.g., Oliva & Ruiz‐Fernández, 2015, 2017).…”

Section: Introductionmentioning

confidence: 99%

Interannual variability of ground surface thermal regimes in Livingston and Deception islands, Antarctica (2007–2021)

de Pablo,

Ramos,

Vieira

et al. 2023

Land Degrad Dev

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The absence of vegetation in most ice‐free areas of Antarctica makes the soil surface very sensitive to atmosphere dynamics, especially in the western sector of the Antarctic Peninsula, an area within the limits of the permafrost zone. To evaluate the possible effects of regional warming on frozen soils, we conducted an analysis of ground surface temperatures (GSTs) from 2007 to 2021 from different monitoring sites in Livingston and Deception islands (South Shetlands archipelago, Antarctica). The analysis of the interannual evolution of the GST and their daily regimes and the freezing and thawing indexes reveals that climate change is showing impacts on seasonal and perennially frozen soils. Freezing Degree Days (FDD) have decreased while Thawing Degree Day (TDD) have increased during the study period, resulting in a balance that is already positive at the sites at lower elevations. Daily freeze–thaw cycles have been rare and absent since 2014. Meanwhile, the most common thermal regimes are purely frozen – F1 (daily temperatures < = −0.5°C), isothermal – IS (ranging between −0.5°C to +0.5°C), and purely thawed – T1 (> = +0.5°C). A decrease in F1 days has been observed, while the IS and T1 days increased by about 60 days between 2007 and 2021. The annual number of days with snow cover increased between 2009 and 2014 and decreased since then. The GST and the daily thermal regimes evolution point to general heating, which may be indicative of the degradation of the frozen soils in the study area.

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The Vegetation of the South Shetland Islands and the Climatic Change

Cited by 4 publications

References 48 publications

Patterns of moss richness in Admiralty Bay, King George Island, cannot be explained by geological or ornithogenic drivers alone

Patterns of moss richness in Admiralty Bay, King George Island, cannot be explained by geological or ornithogenic drivers alone

ShetlandsUAVmetry: unmanned aerial vehicle-based photogrammetric dataset for Antarctic environmental research

Interannual variability of ground surface thermal regimes in Livingston and Deception islands, Antarctica (2007–2021)

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