Ornithogenic Factor of Soil Formation in Antarctica: A Review

Abakumov, Evgeny; Parnikoza, Іvan; Zhianski, Miglena; Yaneva, Rositsa; Лупачев, А. В.; Andreev, Mikhail; Vlasov, Dmitry Yu.; Riano, Juan Manuel; Jaramillo, N.

doi:10.1134/s1064229321040025

Cited by 13 publications

(9 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This fecal material contains high concentrations of macro and micronutrients and is one of the main source of P and N representing around 80% of the amount of these elements in the Antarctic marine environment (Otero et al, 2018). On the other hand, seabird colonies are responsible for severe environmental changes at the regional level in soils (Abakumova et al, 2021) and affect the magnitude of the N and the P fluxes associated with ornitheutrophication, which is comparable with other processes considered in biogeochemical global inventories (Otero et al, 2018).…”

Section: Introductionmentioning

confidence: 85%

Leaching Material from Antarctic Seaweeds and Penguin Guano Affects Cloud-Relevant Aerosol Production

Dall'Osto¹,

Sotomayor²,

Cabrera³

et al. 2021

SSRN Journal

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 85%

Leaching Material from Antarctic Seaweeds and Penguin Guano Affects Cloud-Relevant Aerosol Production

Dall'Osto¹,

Sotomayor²,

Cabrera³

et al. 2021

SSRN Journal

View full text Add to dashboard Cite

“…The analysis of soils in a recent glacier retreat front was guided by UAV surveys that allowed reconstructing successional stages with very detail, as reported by Gyeong et al (2021) [63]. The role played by the ornithogenic factor in soil formation in Antarctica was analysed by Abakumov et al (2021) [64] on field and laboratory data on soil features and also on UAV imagery to help identifying different soil areas and field routes.…”

Section: Landforms and Soilsmentioning

confidence: 99%

UAVs for Science in Antarctica

Pina

Vieira

2022

Remote Sensing

View full text Add to dashboard Cite

Remote sensing is a very powerful tool that has been used to identify, map and monitor Antarctic features and processes for nearly one century. Satellite remote sensing plays the main role for about the last five decades, as it is the only way to provide multitemporal views at continental scale. But the emergence of small consumer-grade unoccupied aerial vehicles (UAVs) over the past two decades has paved the way for data in unprecedented detail. This has been also verified by an increasing noticeable interest in Antarctica by the incorporation of UAVs in the field activities in diversified research topics. This paper presents a comprehensive review about the use of UAVs in scientific activities in Antarctica. It is based on the analysis of 190 scientific publications published in peer-reviewed journals and proceedings of conferences which are organised into six main application topics: Terrestrial, Ice and Snow, Fauna, Technology, Atmosphere and Others. The analysis encompasses a detailed overview of the activities, identifying advantages and difficulties, also evaluating future possibilities and challenges for expanding the use of UAV in the field activities. The relevance of using UAVs to support numerous and diverse scientific activities in Antarctica becomes very clear after analysing this set of scientific publications, as it is revolutionising the remote acquisition of new data with much higher detail, from inaccessible or difficult to access regions, in faster and cheaper ways. Many of the advances can be seen in the terrestrial areas (detailed 3D mapping; vegetation mapping, discrimination and health assessment; periglacial forms characterisation), ice and snow (more detailed topography, depth and features of ice-sheets, glaciers and sea-ice), fauna (counting penguins, seals and flying birds and detailed morphometrics) and in atmosphere studies (more detailed meteorological measurements and air-surface couplings). This review has also shown that despite the low environmental impact of UAV-based surveys, the increasing number of applications and use, may lead to impacts in the most sensitive Antarctic ecosystems. Hence, we call for an internationally coordinated effort to for planning and sharing UAV data in Antarctica, which would reduce environmental impacts, while extending research outcomes.

show abstract

“…The species with polar distribution are additionally highly tolerant to freezing (Bacior et al, 2022;Fern andez-Mar ın, L opez-Pozo, et al, 2019) associated with nitrogen-rich deposits (Abakumov et al, 2021;Holzinger et al, 2006;Lud et al, 2001). Notably, green algae species of the genus Prasiola are widely distributed at many terrestrial and supralittoral sites (Broady, 1989), being especially abundant near ornithogenic soils (Abakumov et al, 2021;Smith & Gremmen, 2001) and, even though their production rate is lower than the one of mosses (the main primary producers in Antarctica together with lichens), they are important food sources and habitat for primary consumers along with microflora (Davis, 1981;Lukashanets et al, 2022). Thanks to molecular markers (plastid genes tufA and rbcL), the taxonomy of Antarctic Prasiola species has recently been re-examined by several authors (Dubrasquet et al, 2021;Garrido-Benavent et al, 2017;Moniz et al, 2012;Pellizzari et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Most species are well photoprotected against UV-radiation (Hartmann et al, 2016;Lud et al, 2001) and against excess of visible radiation too (Kosugi et al, 2020). The species with polar distribution are additionally highly tolerant to freezing (Bacior et al, 2022;Fern andez-Mar ın, L opez-Pozo, et al, 2019) associated with nitrogen-rich deposits (Abakumov et al, 2021;Holzinger et al, 2006;Lud et al, 2001). Notably, green algae species of the genus Prasiola are widely distributed at many terrestrial and supralittoral sites (Broady, 1989), being especially abundant near ornithogenic soils (Abakumov et al, 2021;Smith & Gremmen, 2001) and, even though their production rate is lower than the one of mosses (the main primary producers in Antarctica together with lichens), they are important food sources and habitat for primary consumers along with microflora (Davis, 1981;Lukashanets et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

The outstanding capacity of Prasiola antarctica to thrive in contrasting harsh environments relies on the constitutive protection of thylakoids and on morphological plasticity

Arzac,

Miranda‐Apodaca,

de los Ríos

et al. 2024

The Plant Journal

View full text Add to dashboard Cite

SUMMARYThe determination of physiological tolerance ranges of photosynthetic species and of the biochemical mechanisms underneath are fundamental to identify target processes and metabolites that will inspire enhanced plant management and production for the future. In this context, the terrestrial green algae within the genus Prasiola represent ideal models due to their success in harsh environments (polar tundras) and their extraordinary ecological plasticity. Here we focus on the outstanding Prasiola antarctica and compare two natural populations living in very contrasting microenvironments in Antarctica: the dry sandy substrate of a beach and the rocky bed of an ephemeral freshwater stream. Specifically, we assessed their photosynthetic performance at different temperatures, reporting for the first time gnsd values in algae and changes in thylakoid metabolites in response to extreme desiccation. Stream population showed lower α‐tocopherol content and thicker cell walls and thus, lower gnsd and photosynthesis. Both populations had high temperatures for optimal photosynthesis (around +20°C) and strong constitutive tolerance to freezing and desiccation. This tolerance seems to be related to the high constitutive levels of xanthophylls and of the cylindrical lipids di‐ and tri‐galactosyldiacylglycerol in thylakoids, very likely related to the effective protection and stability of membranes. Overall, P. antarctica shows a complex battery of constitutive and plastic protective mechanisms that enable it to thrive under harsh conditions and to acclimate to very contrasting microenvironments, respectively. Some of these anatomical and biochemical adaptations may partially limit photosynthesis, but this has a great potential to rise in a context of increasing temperature.

show abstract

Ornithogenic Factor of Soil Formation in Antarctica: A Review

Cited by 13 publications

References 59 publications

Leaching Material from Antarctic Seaweeds and Penguin Guano Affects Cloud-Relevant Aerosol Production

Leaching Material from Antarctic Seaweeds and Penguin Guano Affects Cloud-Relevant Aerosol Production

UAVs for Science in Antarctica

The outstanding capacity of Prasiola antarctica to thrive in contrasting harsh environments relies on the constitutive protection of thylakoids and on morphological plasticity

Contact Info

Product

Resources

About