Accès ouvert
2026
article
OpenAlex
David J. Harning, Samuel Sacco, Jonathan H. Raberg, Nicolò Ardenghi et autres
Future changes in high latitude shrubification are expected to amplify warming. However, the elevational range and climate sensitivity of shrubification is poorly constrained, which hinders our ability to tune Earth system models. Using a sediment record from a high-elevation lake in Iceland …
us, is
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Accès ouvert
2026
conference-abstract
OpenAlex
Nicolò Ardenghi, Andrea Columbu, Giovanni Zanchetta, Monica Bini et autres
Understanding long-term interactions between fire activity, vegetation dynamics, and climate variability is essential for contextualizing recent environmental change in the Mediterranean/Balkan region. Speleothems represent a promising yet still underutilized archive for paleofire reconstructions, offering robust chronologies and the integration of multiple environmental …
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Accès ouvert
2025
article
OpenAlex
David J. Harning, Samuel Sacco, Jonathan H. Raberg, Nicolò Ardenghi et autres
Ancient DNA and branched glycerol dialkyl glycerol tetraethers are powerful tools to reconstruct past ecosystems and climate in high-latitude lakes, but often require contrasting redox conditions for reliable interpretations. Here, we present a new approach using adjacent oxic and seasonally suboxic lakes …
us, is
(code pays fourni par la source)
Accès ouvert
2025
preprint
OpenAlex
David J. Harning, Samuel Sacco, Jonathan H. Raberg, Nicolò Ardenghi et autres
Future changes in high latitude shrubification are expected to lead to changes in ecosystem structure and positive climate feedbacks, but the rates and elevational range of shrubification are still poorly constrained. Using a sediment record from a small lake in Iceland’s eastern …
us, is
(code pays fourni par la source)
Accès ouvert
2025
conference-abstract
OpenAlex
Nicolò Ardenghi, Andrea Columbu, Rhawn F. Denniston, Giovanni Zanchetta et autres
Understanding the long-term interactions among vegetation, fire, and climate is critical for interpreting ecosystem responses to climatic perturbations. Project Prometheus investigates Holocene paleofire dynamics, vegetation shifts, and climate variability in the Mediterranean, using speleothem records from caves in Italy (Alps, Apennines, Sardinia) …
it, us
(code pays fourni par la source)
Accès ouvert
2024
preprint
OpenAlex
David J. Harning, Samuel Sacco, Raberg. Jonathan H., Nicolò Ardenghi et autres
Ancient DNA and branched glycerol dialkyl glycerol tetraethers (brGDGTs) are new, powerful tools to reconstruct past ecosystems and climate in high-latitude lakes, but often require contrasting oxygen conditions for reliable interpretations. Here, we present a new approach using adjacent oxic and anoxic …
us, is
(code pays fourni par la source)
Accès ouvert
2024
article
OpenAlex
Nicolò Ardenghi, Andreas Mulch, Jamie M. McFarlin, Dirk Sachse et autres
Many continental paleoclimate archives originate from wetland sedimentary sequences. While several studies have investigated biomarkers derived from peat-generating vegetation typical of temperate/boreal bogs (e.g., Sphagnum), only scant information is available on emergent plants predominant in temperate/subtropical coastal marshlands, peri-lacustrine and fen environments. …
de, us, ch
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Accès ouvert
2024
article
OpenAlex
Nicolò Ardenghi, David J. Harning, Jonathan H. Raberg, Brooke Holman et autres
Paleoclimate reconstructions across Iceland provide a template for past changes in climate across the northern North Atlantic, a crucial region due to its position relative to the global northward heat transport system and its vulnerability to climate change. The roles of orbitally …
us, is
(code pays fourni par la source)
Accès ouvert
2024
peer-review
OpenAlex
Nicolò Ardenghi
Abstract. Paleoclimate reconstructions across Iceland provide a template for past changes in climate across the northern North Atlantic, a crucial region due to its position relative to the global northward heat transport system and its vulnerability to climate change. The roles of …
us
(code pays fourni par la source)
Accès ouvert
2024
peer-review
OpenAlex
Nicolò Ardenghi
Abstract. Paleoclimate reconstructions across Iceland provide a template for past changes in climate across the northern North Atlantic, a crucial region due to its position relative to the global northward heat transport system and its vulnerability to climate change. The roles of …
us
(code pays fourni par la source)
Accès ouvert
2024
peer-review
OpenAlex
Nicolò Ardenghi
Abstract. Paleoclimate reconstructions across Iceland provide a template for past changes in climate across the northern North Atlantic, a crucial region due to its position relative to the global northward heat transport system and its vulnerability to climate change. The roles of …
us
(code pays fourni par la source)
Accès ouvert
2023
article
OpenAlex
David J. Harning, Samuel Sacco, Kesara Anamthawat‐Jónsson, Nicolò Ardenghi et autres
As the Arctic continues to warm, woody shrubs are expected to expand northward. This process, known as ‘shrubification,’ has important implications for regional biodiversity, food web structure, and high-latitude temperature amplification. While the future rate of shrubification remains poorly constrained, past records …
us, is
(code pays fourni par la source)