Soumaya Belmecheri

University of Arizona

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Ulrich von Grafenstein

Centre National de la Recherche Scientifique

Paul Szejner

Natural Resources Institute Finland

Russell K. Monson

University of Colorado Boulder

Valérie Trouet

University of Arizona

Flurin Babst

University of Arizona

Valérie Andrieu‐Ponel

Aix-Marseille Université

Nils Andersen

Kiel University

Tadeusz Namiotko

University of Gdańsk

William E. Wright

Wright Institute

Dan L. Danielopol

University of Graz

Cooperative Institutions

Centre National de la Recherche Scientifique

University of Arizona

Laboratoire des Sciences du Climat et de l'Environnement

Columbia University

University of Bern

Lamont-Doherty Earth Observatory

Oeschger Centre for Climate Change Research

Institut de Recherche pour le Développement

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

ETH Zurich

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Climate and bark beetle effects on forest productivity — linking dendroecology with forest landscape modeling

Canadian Journal of Forest Research (2016)

Alec M. Kretchun E. Louise Loudermilk Robert M. Scheller Matthew D. Hurteau Soumaya Belmecheri

In forested systems throughout the world, climate influences tree growth and aboveground net primary productivity (ANPP). The effects of extreme climate events (i.e., drought) on ANPP can be compounded by biotic factors (e.g., insect outbreaks). Understanding the contribution of each of these influences on growth requires information at multiple spatial scales and is essential for understanding regional forest response to changing climate. The mixed conifer forests of the Lake Tahoe Basin, California and Nevada, provide an opportunity to analyze biotic and abiotic influences on ANPP. Our objective was to evaluate the influence of moisture stress (climatic water deficit, CWD) and bark beetles on basin-wide ANPP from 1987 to 2006, estimated through tree core increments and a landscape simulation model (LANDIS-II). Tree ring data revealed that ANPP increased throughout this period and had a nonlinear relationship to water demand. Simulation model results showed that despite increased complexity, simulations that include moderate moisture sensitivity and bark beetle outbreaks most closely approximated the field-derived ANPP∼CWD relationship. Although bark beetle outbreaks and episodic drought-induced mortality events are often correlated, decoupling them within a simulation model offers insight into assessing model performance, as well as examining how each contributes to total declines in productivity.

10.1139/cjfr-2016-0103

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Citations (15)

The oxygen and carbon isotopic signatures of biogenic carbonates in Gerzensee, Switzerland, during the rapid warming around 14,685years BP and the following interstadial

Palaeogeography Palaeoclimatology Palaeoecology (2013)

Ulrich von Grafenstein Soumaya Belmecheri Ueli Eicher Ulrike J. van Raden Helmut Erlenkeuser

Isotopic signature

δ18O

Ice core

10.1016/j.palaeo.2013.08.018

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Citations (31)

Paravani, a puzzling lake in the South Caucasus

Quaternary International (2020)

Erwan Messager Jérôme Poulenard Pierre Sabatier Anne‐Lise Develle Bruno Wilhelm

Sediment core

Paleoecology

Vegetation Cover

Environmental change

10.1016/j.quaint.2020.04.005

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Citations (11)

Response of the Western-European ecosystems to rapid climatic fluctuations (Heinrich and Dansggard-Oeschger) during glacial times (OIS 4 to OIS 2)

HAL (Le Centre pour la Communication Scientifique Directe) (2008)

Valérie Andrieu‐Ponel Linda Ampel Jacques‐Louis de Beaulieu Soumaya Belmecheri Svante Björck

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Excess warming in Central Europe after the 8.2 ka cold event: evidence from a varve-dated ostracod δ18O record from Mondsee (Austria)

EGUGA (2017)

Stefan Lauterbach Nils Andersen Helmut Erlenkeuser Dan L. Danielopol Tadeusz Namiotko

Ostracod

Varve

δ18O

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Validating the Spring Jet Stream Indices Using Extended Spring Index (SI-x) Models

AGUFM (2016)

Ann Hudson Valérie Trouet Soumaya Belmecheri D. J. Moore

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Late Quaternary record of the vegetation and catchment-related changes from Lake Paravani (Javakheti, South Caucasus)

Quaternary Science Reviews (2013)

Erwan Messager Soumaya Belmecheri Ulrich von Grafenstein Sébastien Nomade Vincent Ollivier

Last Glacial Maximum

10.1016/j.quascirev.2013.07.011

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Citations (92)

A tree-ring based reconstruction of spring Northern Hemisphere tropical belt movements over the past 800 years

AGUFM (2018)

Valérie Trouet Raquel Alfaro‐Sánchez Huan Cong Nguyen Stefan Klesse Ann Hudson

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Latitudinal Gradients in Tree Ring Stable Carbon and Oxygen Isotopes Reveal Differential Climate Influences of the North American Monsoon System.

Paul Szejner William E. Wright Flurin Babst Soumaya Belmecheri Valérie Trouet

Macrosystems program in the Emerging Frontiers section of the U.S. National Science Foundation (NSF) [1065790]; Interuniversity Training Program in Continental-scale Ecology (NSF) [1137336]; Swiss National Science Foundation [P300P2_154543]

Carbon fibers

Climate system

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Palaeoecology of Late Glacial and Holocene profundal Ostracoda of pre-Alpine lake Mondsee (Austria) — A base for further (palaeo-)biological research

Palaeogeography Palaeoclimatology Palaeoecology (2014)

Tadeusz Namiotko Dan L. Danielopol Ulrich von Grafenstein Stefan Lauterbach Achim Brauer

Profundal zone

Allerød oscillation

Ostracod

10.1016/j.palaeo.2014.09.009

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Citations (18)