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  1. Article ; Online: Projected changes in fire activity and severity feedback in the spruce–feather moss forest of western Quebec, Canada

    Fougère Augustin / Martin P. Girardin / Aurélie Terrier / Pierre Grondin / Marie-Claude Lambert / Alain Leduc / Yves Bergeron

    Trees, Forests and People, Vol 8, Iss , Pp 100229- (2022)

    2022  

    Abstract: As a result of extreme weather conditions associated with anthropogenic climate change, fire regimes are expected to continue to change in the boreal forest over the 21st century and beyond. Consequently, changes in ecological attributes like stand ... ...

    Abstract As a result of extreme weather conditions associated with anthropogenic climate change, fire regimes are expected to continue to change in the boreal forest over the 21st century and beyond. Consequently, changes in ecological attributes like stand composition, tree density and forest carbon stock can be expected. In the present study, we used an adjusted version of the CanFIRE model to project long-term (1971–2100) changes in burn rates, fire severity and fire-induced shifts in vegetation composition in response to anticipated scenarios of climate change, in the black spruce-feather moss subdomain of Western Quebec. The model provides decadal-scale estimates of the immediate physical effects of fire on forest communities by computing expected fire behavior and the resulting ecological effects. Changes in species composition of the forest is also computed based on mechanisms of succession in natural forest communities and fire-mediated vegetation transitions. Projections suggest an increase in potential burn rates across the study area under future weather conditions and also an overall reduction in percent tree mortality and total fuel consumption. This reduction is caused by negative feedback from vegetation composition that shifts to less-fire prone states. Although common forest communities will remain the same in the studied subdomain until 2100 (recurrence dynamics), significant losses of productive area (LPA) are projected, particularly in forest management units rich in forest communities dominated by black spruce or jack pine, as a result of regeneration failure due to very short intervals between successive fires. While remaining similar under moderate (RCP4.5) and high-end (RCP8.5) warming scenarios in all forest management units, LPA will vary from 25 to 36% of the percent cover by 2100 compared to 1970. These results provide insights to policy makers and land managers, and they attract attention to the pressing need to adjust management practices in the context of climate change.
    Keywords Climate change ; Wildfire ; CanFIRE model ; Boreal forest ; Fire severity ; Forestry ; SD1-669.5 ; Plant ecology ; QK900-989
    Subject code 550 ; 333
    Language English
    Publishing date 2022-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Les réservoirs de carbone en forêt boréale à l’est du Canada

    Aurélie Terrier / Martin Girardin / Yves Bergeron

    VertigO, Vol 11, Iss

    acquis et incertitudes dans la modélisation face aux changements climatiques

    2012  Volume 3

    Abstract: Climate change is of major concern for forest managers. The boreal forest is becoming increasingly central to discussions on carbon cycling because of its capacity to compensate for anthropogenic carbon emission. The boreal forest captures relatively ... ...

    Abstract Climate change is of major concern for forest managers. The boreal forest is becoming increasingly central to discussions on carbon cycling because of its capacity to compensate for anthropogenic carbon emission. The boreal forest captures relatively small amounts of carbon in comparison to more temperate or tropical forests, due its cold climate and the short growing season. However, emission of carbon from dead matter decomposition is also slow, which can result in high levels of organic matter accumulation. Models suggest that the capacity of the boreal forest to capture carbon could increase in response to climate change but current models have too many uncertainties to be able to inform appropriate management decisions, including responses of boreal carbon sinks to climate change. Models are simplifications of complex natural systems and uncertainties arise from the lack of knowledge of all the processes in the system, many of which could be interacting. In this article, we first synthesize processes leading to carbon exchange between the forest and the atmosphere. Secondly, we present current knowledge of climate change impacts on carbon sinks in the boreal forest in eastern Canada. Finally, we discuss three types of uncertainties: the uncertainties in the data, structural uncertainties and unpredictable uncertainties, and we propose recommendations for reducing each type of uncertainties.
    Keywords modeling ; uncertainties ; boreal forest ; carbon stocks ; climate change ; Environmental sciences ; GE1-350
    Subject code 550 ; 333
    Language French
    Publishing date 2012-03-01T00:00:00Z
    Publisher Éditions en environnement VertigO
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Les réservoirs de carbone en forêt boréale à l’est du Canada

    Aurélie Terrier / Martin Girardin / Yves Bergeron

    VertigO, Vol 11, Iss

    acquis et incertitudes dans la modélisation face aux changements climatiques

    2012  Volume 3

    Abstract: Climate change is of major concern for forest managers. The boreal forest is becoming increasingly central to discussions on carbon cycling because of its capacity to compensate for anthropogenic carbon emission. The boreal forest captures relatively ... ...

    Abstract Climate change is of major concern for forest managers. The boreal forest is becoming increasingly central to discussions on carbon cycling because of its capacity to compensate for anthropogenic carbon emission. The boreal forest captures relatively small amounts of carbon in comparison to more temperate or tropical forests, due its cold climate and the short growing season. However, emission of carbon from dead matter decomposition is also slow, which can result in high levels of organic matter accumulation. Models suggest that the capacity of the boreal forest to capture carbon could increase in response to climate change but current models have too many uncertainties to be able to inform appropriate management decisions, including responses of boreal carbon sinks to climate change. Models are simplifications of complex natural systems and uncertainties arise from the lack of knowledge of all the processes in the system, many of which could be interacting. In this article, we first synthesize processes leading to carbon exchange between the forest and the atmosphere. Secondly, we present current knowledge of climate change impacts on carbon sinks in the boreal forest in eastern Canada. Finally, we discuss three types of uncertainties: the uncertainties in the data, structural uncertainties and unpredictable uncertainties, and we propose recommendations for reducing each type of uncertainties.
    Keywords modeling ; uncertainties ; boreal forest ; carbon stocks ; climate change ; Environmental sciences ; GE1-350
    Subject code 550 ; 333
    Language French
    Publishing date 2012-03-01T00:00:00Z
    Publisher Éditions en environnement VertigO
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Influence of Fuel Load Dynamics on Carbon Emission by Wildfires in the Clay Belt Boreal Landscape

    Aurélie Terrier / Mathieu Paquette / Sylvie Gauthier / Martin P. Girardin / Sylvain Pelletier-Bergeron / Yves Bergeron

    Forests, Vol 8, Iss 1, p

    2016  Volume 9

    Abstract: Old-growth forests play a decisive role in preserving biodiversity and ecological functions. In an environment frequently disturbed by fire, the importance of old-growth forests as both a carbon stock as well as a source of emissions when burnt is not ... ...

    Abstract Old-growth forests play a decisive role in preserving biodiversity and ecological functions. In an environment frequently disturbed by fire, the importance of old-growth forests as both a carbon stock as well as a source of emissions when burnt is not fully understood. Here, we report on carbon accumulation with time since the last fire (TSF) in the dominant forest types of the Clay Belt region in eastern North America. To do so, we performed a fuel inventory (tree biomass, herbs and shrubs, dead woody debris, and duff loads) along four chronosequences. Carbon emissions by fire through successional stages were simulated using the Canadian Fire Effects Model. Our results show that fuel accumulates with TSF, especially in coniferous forests. Potential carbon emissions were on average 11.9 t·ha−1 and 29.5 t·ha−1 for old-growth and young forests, respectively. In conclusion, maintaining old-growth forests in the Clay Belt landscape not only ensures a sustainable management of the boreal forest, but it also optimizes the carbon storage.
    Keywords boreal forest ; fuel load dynamics ; fire behavior ; carbon emission modelling ; sustainable management ; mitigation management ; Plant ecology ; QK900-989
    Language English
    Publishing date 2016-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Characterization of monoclonal antibodies by a fast and easy liquid chromatography–mass spectrometry time-of-flight analysis on culture supernatant

    Henninot, Antoine / Alexandre Fontayne / Aurelie Terrier / Benoit Deprez / Julie Charton / Rémi Urbain / Terence Beghyn

    Analytical biochemistry. 2015 Dec. 15, v. 491

    2015  

    Abstract: Rapid and efficient structural analysis is key to the development of new monoclonal antibodies. We have developed a fast and easy process to obtain mass spectrometry profiles of antibodies from culture supernatant. Treatment of the supernatant with IdeS ... ...

    Abstract Rapid and efficient structural analysis is key to the development of new monoclonal antibodies. We have developed a fast and easy process to obtain mass spectrometry profiles of antibodies from culture supernatant. Treatment of the supernatant with IdeS generates three fragments of 25 kDa that can be analyzed by liquid chromatography–mass spectrometry time-of-flight (LC–MS TOF) in one run: LC, Fd, and Fc/2. This process gives rapid access to isoform and glycoform profiles. To specifically measure the fucosylation yield, we included a one-pot treatment with EndoS that removes the distal glycan heterogeneity. Our process was successfully compared with high-performance capillary electrophoresis with laser-induced fluorescence detection (HPCE–LIF), currently considered as the “gold standard” method.
    Keywords capillary electrophoresis ; fluorescence ; liquid chromatography ; mass spectrometry ; monoclonal antibodies
    Language English
    Dates of publication 2015-1215
    Size p. 52-54.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 1110-1
    ISSN 1096-0309 ; 0003-2697
    ISSN (online) 1096-0309
    ISSN 0003-2697
    DOI 10.1016/j.ab.2015.08.006
    Database NAL-Catalogue (AGRICOLA)

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