Patterns and impacts of an unprecedented outbreak of bark beetles in Central Europe: A glimpse into the future?

Forest Ecosystems, Journal Year: 2024, Volume and Issue: 11, P. 100243 - 100243

Published: Jan. 1, 2024

Language: Английский

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Using Structural Class Pairing to Address the Spatial Mismatch Between GEDI Measurements and NFI Plots

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Journal Year: 2024, Volume and Issue: 17, P. 12854 - 12867

Published: Jan. 1, 2024

ou non, émanant des établissements d'enseignement et de recherche français étrangers, laboratoires publics privés.

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Ecology, floristic-vegetational features and future perspectives of spruce forests affected by Ips typographus: insights from the Southern Alps

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

In recent years, many spruce (Picea abies) forests have been severely affected by bark beetle (Ips typographus) outbreaks in the Southern Alps, but their ecological impacts remain poorly studied. This research analyzed distribution, ecological, and floristic-vegetational characteristics of recently upper basin Oglio River (Northern Italy) developed a MaxEnt model to predict severe insect attacks coming decades. The results showed that are located exclusively sub-mountain mountain belts (below 1,600 m a.s.l.) 85% them found areas with high annual solar radiation (> 3,500 MJ m⁻²). predictive for susceptible proved highly accurate (AUC = 0.91) was primarily defined mean temperature dry winter quarter (contribution: 80.1%), values between − 2.5 2.5°C being particularly suitable pest. According model, more than 58% current study area will exhibit susceptibility (probability > 0.7) 2080. analysis plant communities 11 beetle-affected indicated thermophilic significantly different forest (in both floristic physiognomic terms) expected develop compared those pre-disturbance. Furthermore, coverage/density snags appears accelerate succession, enabling establishment mature shorter time frame.

Language: Английский

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Impacts of Recent Disturbances on Protection Forests in the Italian Alps

Published: Jan. 1, 2025

Language: Английский

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Ecology, Floristic–Vegetational Features, and Future Perspectives of Spruce Forests Affected by Ips typographus: Insight from the Southern Alps

Plants, Journal Year: 2025, Volume and Issue: 14(11), P. 1681 - 1681

Published: May 31, 2025

In recent years, many spruce (Picea abies (L.) H. Karst., Pinaceae) forests have been severely affected by bark beetle (Ips typographus L., Coleoptera: Curculionidae) outbreaks in the Southern Alps, but their ecological impacts remain poorly studied. We analyzed distribution, ecological, and floristic–vegetational characteristics of recently upper basin Oglio River (Northern Italy) developed a MaxEnt model to map with bioclimate more prone severe insect attacks coming decades. The results showed that are located exclusively submountain mountain belts (below 1600 m a.s.l.) 85% them found areas high annual solar radiation (>3500 MJ m−2). predictive for susceptible proved highly accurate (AUC = 0.91) was primarily defined mean temperature dry winter quarter (contribution: 80.1%), values between −2.5 2.5 °C being particularly suitable pest. According model, than 58% current study area will exhibit susceptibility (probability > 0.7) 2080. analysis plant communities 11 beetle-affected indicated thermophilic significantly different forest (in both floristic physiognomic terms) expected develop compared those pre-disturbance. Furthermore, coverage snags/standing dead trees appears accelerate succession, enabling establishment mature shorter time frame.

Language: Английский

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Simulating Ips typographus L. outbreak dynamics and their influence on carbon balance estimates with ORCHIDEE r8627

Geoscientific model development, Journal Year: 2024, Volume and Issue: 17(21), P. 8023 - 8047

Published: Nov. 11, 2024

Abstract. New (a)biotic conditions resulting from climate change are expected to disturbance dynamics, such as windthrow, forest fires, droughts, and insect outbreaks, their interactions. These unprecedented natural dynamics might alter the capability of ecosystems buffer atmospheric CO2 increases, potentially leading forests transform sinks into sources CO2. This study aims enhance ORCHIDEE land surface model impacts on bark beetle, Ips typographus, subsequent effects functioning. The typographus outbreak is inspired by previous work Temperli et al. (2013) for LandClim landscape model. new implementation this in r8627 accounts key differences between LandClim: (1) coarser spatial resolution ORCHIDEE; (2) higher temporal (3) pre-existing process representation drought, structure ORCHIDEE. Simulation experiments demonstrated simulate a variety post-disturbance observed empirical studies. Through an array simulation across various climatic windthrow intensities, was tested its sensitivity climate, initial disturbance, selected parameter values. results these tests indicated that with single set parameters, outputs spanned range dynamics. Additional highlighted substantial impact incorporating outbreaks carbon Notably, revealed modeling abrupt mortality events opposed continuous framework provides insights short-term sequestration potential under regimes showing tends overestimate sink capacity 20- 50-year high pressure compared scenarios events. enhancement underscores critical need include models refine predictions changing climate.

Language: Английский

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Modeling productivity of silver birch (Betula pendula Roth.) combining phytocentric and geocentric approaches in Northwestern Europe

Forest Ecology and Management, Journal Year: 2024, Volume and Issue: 578, P. 122473 - 122473

Published: Dec. 29, 2024

Language: Английский

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