A freshwater diatom perspective on the evolution of the southern westerlies for the past ∼14,000 years in southwestern Patagonia

Villacís, Leonardo A.; Moreno, Patricio I.; Vilanova, Isabel; Henríquez, Carla A.; Henríquez, W.I.; Villa-Martínez, Rodrigo; Sepúlveda-Zúñiga, Einer; Maidana, Nora I.

doi:10.1016/j.quascirev.2022.107929

Cited by 10 publications

(3 citation statements)

References 107 publications

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“…The results of this study revealed changes in volcanic supply, productivity, and detrital inputs, with diatom shifts indicating basin closure approximately 2,000 years ago, possibly due to tectonic activity related to the Mañihuales fault. Similarly, diatoms from Lago Cipreses, southeastern Patagonia, detailed the historical variability of the Southern Westerly Winds (SWW), a dominant wind system in the Southern Hemisphere that is crucial to regional climate oscillations (VILLACÍS et al 2023). The diatoms in this study revealed distinct periods marked by an increased influence of Southwesterly Wind (SWW) on the regional climate interspersed with intervals of reduced wind impact.…”

Section: Introductionmentioning

confidence: 73%

“…Her work seamlessly extends and enriches the historic legacy set forth by Dr. Joaquin Frenguelli, an Argentine geologist and paleontologist who made significant contributions to the study of geology and paleontology in South America (RICCARDI 2017). Maidana et al published over 100 articles and several books on diatoms in different ecoregions of Argentina, from Patagonia to the Andes (for example, HABERZETTL et al 2005;FERNÁNDEZ et al 2013FERNÁNDEZ et al , 2020MAYR et al 2019;ZOLITSCHKA et al 2018;VILLACÍS et al 2023). She has also been the lead diatomist in many paleolimnological scientific projects throughout Argentina, including the large ICDP drilling project on Laguna Potrok Aike in Patagonia (PASADO), which documented the climatic and volcanic history of Patagonia over the last glacial period.…”

Section: Collaboration Network In Diatom-based Paleoenvironmental Res...mentioning

confidence: 99%

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Diatom-based paleoenvironmental research: global trends, regional disparities and the evolving role of South America

Fontana,

Novaes de Nascimento

2023

Derb.

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The use of diatoms in paleoenvironmental research is of the utmost importance for reconstructing past ecosystems because it provides crucial insights into the adaptability and resilience of these systems under ongoing climate change and increased human impacts. Maintaining a comprehensive dataset distribution is crucial to ensure the validity and relevance of these reconstructions on a global scale. This scientometric study aimed to analyze trends in diatom-based paleoenvironmental research on a global scale with an emphasis on South America. This study aimed to investigate disparities in the geographical distribution of diatom-based paleoenvironmental studies, collaboration networks in the field, and regions in which this research is lacking. The Scopus search criteria excluded certain types of publications, such as conference articles and notes. The search focused on articles, reviews, books and chapters of books using specific keywords aligned with the objectives of this study. Using the Scopus database, we identified 7,091 publications (1979-2023) that employed diatoms as a primary proxy for paleoenvironmental reconstruction. The results show significant changes in this field recent decades. The analysis highlights a marked upsurge in publication output during the 1980s and a substantial increase in publications after 2000. This upward trend in scientific documentation reflects the growing interest in and recognition of the importance of this field in the context of palaeoecology and environmental sciences. After 2011, the results revealed a shift in thematic focus from historical and geological reconstruction to ecological, anthropogenic, and climatic interactions. Key researchers, including Smol JP, Leng MJ, and Birks HJB, have been at the forefront of international collaborations. Since the 2000s, South American studies have focused primarily on lakes, climate change effects, and volcanic activity. In this region, researchers such as Maidana N.I., Urrutia, R., and García-Rodriguez, F. emphasized the significance of regional ecosystems and their paleoenvironmental history in the global context of the field. Despite its high biodiversity, South America contributed only 6.7% of the global research output, placing it 19th globally. Socioeconomic factors and other obstacles faced by researchers in the region could explain the observed disparity in scientific output in South America compared to other regions. To unlock South America’s vast potential for diatom-based paleoenvironmental research, which boasts the highest global biodiversity yet remains underrepresented in the field, stakeholders must implement equitable partnerships, increase funding and improve their academic infrastructure and opportunities. These strategies are crucial for advancing the global paleoenvironmental understanding, informing future conservation and environmental policies in South America, and promoting scientific progress on a global scale.

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Section: Introductionmentioning

confidence: 73%

Section: Collaboration Network In Diatom-based Paleoenvironmental Res...mentioning

confidence: 99%

Diatom-based paleoenvironmental research: global trends, regional disparities and the evolving role of South America

Fontana,

Novaes de Nascimento

2023

Derb.

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“…Over the past 40 years, the field of paleolimnology has made significant progress in contributing to our knowledge of long-term climate change (i.e., Villacis et al, 2023), altered biogeochemical cycles (i.e., Bao et al, 2021), environmental pollution (i.e., Kissinger et al, 2023), variations in dust composition and deposition (i.e., Chen et al, 2020), and species invasions and biodiversity (i.e., Cuenca-Cambronero et al, 2022). An overview of the importance of sediment records from continental aquatic ecosystems, especially lakes, was given out to provide long-term insights needed to ensure the maintenance of ecological and services by adapting to current and future environmental changes (Saulnier-Talbot, 2016).…”

Section: Editorial On the Research Topic Paleolimnology: Insights Fro...mentioning

confidence: 99%

Editorial: Paleolimnology: insights from sedimentary archives

Bao,

Aránguiz-Acuña,

Cao

2024

Front. Ecol. Evol.

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Late Quaternary climatic inferences from southern Patagonia (∼53°S): A holistic palaeoecological approach to tracking the behaviour of the southern westerly winds

McCulloch,

Mansilla,

Roberts

et al. 2023

Palaeogeography, Palaeoclimatology, Palaeoecology

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A freshwater diatom perspective on the evolution of the southern westerlies for the past ∼14,000 years in southwestern Patagonia

Cited by 10 publications

References 107 publications

Diatom-based paleoenvironmental research: global trends, regional disparities and the evolving role of South America

Diatom-based paleoenvironmental research: global trends, regional disparities and the evolving role of South America

Editorial: Paleolimnology: insights from sedimentary archives

Late Quaternary climatic inferences from southern Patagonia (∼53°S): A holistic palaeoecological approach to tracking the behaviour of the southern westerly winds

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