Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire
Eastern Spruce Budworm (ESBW) is a major agent of disturbance in Eastern Canada's boreal forests. Outbreaks have historically led to widespread defoliation of its preferred host trees, fir and spruce species, leading to high rates of mortality. This in turn can result in significant economic losses and enhancement of fire potential in the region. Representation of such biotic disturbance has rarely been included in Dynamic Global Vegetation Models (DGVM), which have become essential tools in understanding and predicting forest dynamics in present and future contexts. We present novel representation of host-specific defoliation in a DGVM (LPJ-LMfire), to better represent disturbance regimes in the boreal forest of eastern Canada. Using host foliage density to trigger outbreak, we were able to calibrate and simulate general spatial patterns of defoliation relative to historical aerial sketch map data. Return intervals were thus sensitive to the growth rates of host trees. Modeled return intervals tended to be significantly longer than 30 years, the approximate observed return interval. A factorial experiment was performed on the interactions of ESBW with wildfire, which was found to be slightly enhanced in terms of burned areas after outbreaks due to increased fuel loads. Interactions between ESBW and fire were found to have higher interaction strength in the drier Western region of the boreal forest. Our study demonstrates that biotic disturbance and its interaction with wildfire can be effectively simulated in a DGVM. We show that bottom-up climatic controls are sufficient to drive simulated spatiotemporal patterns of ESBW that can be calibrated to generally match historical observations.
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Subjects: | H10 - Ravageurs des plantes, H50 - Troubles divers des plantes, incendie spontané, Choristoneura fumiferana, forêt, forêt boréale, incendie de forêt, Choristoneura, http://aims.fao.org/aos/agrovoc/c_34150, http://aims.fao.org/aos/agrovoc/c_30360, http://aims.fao.org/aos/agrovoc/c_3062, http://aims.fao.org/aos/agrovoc/c_1014, http://aims.fao.org/aos/agrovoc/c_3045, http://aims.fao.org/aos/agrovoc/c_1589, http://aims.fao.org/aos/agrovoc/c_1236, |
Online Access: | http://agritrop.cirad.fr/604962/ http://agritrop.cirad.fr/604962/1/Sato%26al_2023_LPJLMfire_Spruce_budworm_easternCanada.pdf |
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dig-cirad-fr-6049622024-01-29T05:58:52Z http://agritrop.cirad.fr/604962/ http://agritrop.cirad.fr/604962/ Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire. Sato Hiromitsu, Chaste Emeline, Girardin Martin P., Kaplan Jed O., Hély Christelle, Candau Jean-Noël, Mayor Stephen J.. 2023. Ecological Modelling, 483:110412, 13 p.https://doi.org/10.1016/j.ecolmodel.2023.110412 <https://doi.org/10.1016/j.ecolmodel.2023.110412> Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire Sato, Hiromitsu Chaste, Emeline Girardin, Martin P. Kaplan, Jed O. Hély, Christelle Candau, Jean-Noël Mayor, Stephen J. eng 2023 Ecological Modelling H10 - Ravageurs des plantes H50 - Troubles divers des plantes incendie spontané Choristoneura fumiferana forêt forêt boréale incendie de forêt Choristoneura http://aims.fao.org/aos/agrovoc/c_34150 http://aims.fao.org/aos/agrovoc/c_30360 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1014 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_1589 Canada http://aims.fao.org/aos/agrovoc/c_1236 Eastern Spruce Budworm (ESBW) is a major agent of disturbance in Eastern Canada's boreal forests. Outbreaks have historically led to widespread defoliation of its preferred host trees, fir and spruce species, leading to high rates of mortality. This in turn can result in significant economic losses and enhancement of fire potential in the region. Representation of such biotic disturbance has rarely been included in Dynamic Global Vegetation Models (DGVM), which have become essential tools in understanding and predicting forest dynamics in present and future contexts. We present novel representation of host-specific defoliation in a DGVM (LPJ-LMfire), to better represent disturbance regimes in the boreal forest of eastern Canada. Using host foliage density to trigger outbreak, we were able to calibrate and simulate general spatial patterns of defoliation relative to historical aerial sketch map data. Return intervals were thus sensitive to the growth rates of host trees. Modeled return intervals tended to be significantly longer than 30 years, the approximate observed return interval. A factorial experiment was performed on the interactions of ESBW with wildfire, which was found to be slightly enhanced in terms of burned areas after outbreaks due to increased fuel loads. Interactions between ESBW and fire were found to have higher interaction strength in the drier Western region of the boreal forest. Our study demonstrates that biotic disturbance and its interaction with wildfire can be effectively simulated in a DGVM. We show that bottom-up climatic controls are sufficient to drive simulated spatiotemporal patterns of ESBW that can be calibrated to generally match historical observations. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/604962/1/Sato%26al_2023_LPJLMfire_Spruce_budworm_easternCanada.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.ecolmodel.2023.110412 10.1016/j.ecolmodel.2023.110412 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecolmodel.2023.110412 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.ecolmodel.2023.110412 info:eu-repo/semantics/dataset/purl/https://doi.org/10.5281/zenodo.6941561 |
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H10 - Ravageurs des plantes H50 - Troubles divers des plantes incendie spontané Choristoneura fumiferana forêt forêt boréale incendie de forêt Choristoneura http://aims.fao.org/aos/agrovoc/c_34150 http://aims.fao.org/aos/agrovoc/c_30360 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1014 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_1589 http://aims.fao.org/aos/agrovoc/c_1236 H10 - Ravageurs des plantes H50 - Troubles divers des plantes incendie spontané Choristoneura fumiferana forêt forêt boréale incendie de forêt Choristoneura http://aims.fao.org/aos/agrovoc/c_34150 http://aims.fao.org/aos/agrovoc/c_30360 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1014 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_1589 http://aims.fao.org/aos/agrovoc/c_1236 |
spellingShingle |
H10 - Ravageurs des plantes H50 - Troubles divers des plantes incendie spontané Choristoneura fumiferana forêt forêt boréale incendie de forêt Choristoneura http://aims.fao.org/aos/agrovoc/c_34150 http://aims.fao.org/aos/agrovoc/c_30360 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1014 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_1589 http://aims.fao.org/aos/agrovoc/c_1236 H10 - Ravageurs des plantes H50 - Troubles divers des plantes incendie spontané Choristoneura fumiferana forêt forêt boréale incendie de forêt Choristoneura http://aims.fao.org/aos/agrovoc/c_34150 http://aims.fao.org/aos/agrovoc/c_30360 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1014 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_1589 http://aims.fao.org/aos/agrovoc/c_1236 Sato, Hiromitsu Chaste, Emeline Girardin, Martin P. Kaplan, Jed O. Hély, Christelle Candau, Jean-Noël Mayor, Stephen J. Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire |
description |
Eastern Spruce Budworm (ESBW) is a major agent of disturbance in Eastern Canada's boreal forests. Outbreaks have historically led to widespread defoliation of its preferred host trees, fir and spruce species, leading to high rates of mortality. This in turn can result in significant economic losses and enhancement of fire potential in the region. Representation of such biotic disturbance has rarely been included in Dynamic Global Vegetation Models (DGVM), which have become essential tools in understanding and predicting forest dynamics in present and future contexts. We present novel representation of host-specific defoliation in a DGVM (LPJ-LMfire), to better represent disturbance regimes in the boreal forest of eastern Canada. Using host foliage density to trigger outbreak, we were able to calibrate and simulate general spatial patterns of defoliation relative to historical aerial sketch map data. Return intervals were thus sensitive to the growth rates of host trees. Modeled return intervals tended to be significantly longer than 30 years, the approximate observed return interval. A factorial experiment was performed on the interactions of ESBW with wildfire, which was found to be slightly enhanced in terms of burned areas after outbreaks due to increased fuel loads. Interactions between ESBW and fire were found to have higher interaction strength in the drier Western region of the boreal forest. Our study demonstrates that biotic disturbance and its interaction with wildfire can be effectively simulated in a DGVM. We show that bottom-up climatic controls are sufficient to drive simulated spatiotemporal patterns of ESBW that can be calibrated to generally match historical observations. |
format |
article |
topic_facet |
H10 - Ravageurs des plantes H50 - Troubles divers des plantes incendie spontané Choristoneura fumiferana forêt forêt boréale incendie de forêt Choristoneura http://aims.fao.org/aos/agrovoc/c_34150 http://aims.fao.org/aos/agrovoc/c_30360 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_1014 http://aims.fao.org/aos/agrovoc/c_3045 http://aims.fao.org/aos/agrovoc/c_1589 http://aims.fao.org/aos/agrovoc/c_1236 |
author |
Sato, Hiromitsu Chaste, Emeline Girardin, Martin P. Kaplan, Jed O. Hély, Christelle Candau, Jean-Noël Mayor, Stephen J. |
author_facet |
Sato, Hiromitsu Chaste, Emeline Girardin, Martin P. Kaplan, Jed O. Hély, Christelle Candau, Jean-Noël Mayor, Stephen J. |
author_sort |
Sato, Hiromitsu |
title |
Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire |
title_short |
Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire |
title_full |
Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire |
title_fullStr |
Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire |
title_full_unstemmed |
Dynamically simulating spruce budworm in eastern Canada and its interactions with wildfire |
title_sort |
dynamically simulating spruce budworm in eastern canada and its interactions with wildfire |
url |
http://agritrop.cirad.fr/604962/ http://agritrop.cirad.fr/604962/1/Sato%26al_2023_LPJLMfire_Spruce_budworm_easternCanada.pdf |
work_keys_str_mv |
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1792500556232654848 |