Article
Forestry
Andrzej Mazur, Radoslaw Witkowski, Robert Kuzminski, Roman Jaszczak, Mieczyslaw Turski, Hanna Kwasna, Piotr Lakomy, Janusz Szmyt, Krzysztof Adamowicz, Andrzej Labedzki
Summary: This study describes assemblages of saproxylic beetles in pine stands of western Poland based on dead wood resources. The results show higher species diversity indicators in unmanaged stands and a prevalence of xylophagous beetles in managed stands. Despite increased CWD resources in unmanaged stands, it does not lead to a significant increase in biodiversity indicators.
Article
Geosciences, Multidisciplinary
Wojciech Piaszczyk, Jaroslaw Lasota, Ewa Blonska, Kacper Foremnik
Summary: The study found that habitat moisture has a significant impact on the decomposition process of wood samples, with the greatest mass loss recorded under fresh habitat conditions. Higher moisture content slows down wood decomposition, with weight loss averaging 34% in boggy habitats. Fine woody debris can serve as a useful source of nutrients in forest ecosystems.
Article
Entomology
Jeffrey D. Holland
Summary: The use of woody debris left after timber harvest for bioenergy production can help reduce reliance on nonrenewable fossil fuels, but ecological impacts and community resilience need to be considered. Research shows that the abundance and functional group richness of longhorned beetles increase with more woody debris left on site, but the trajectory of community post-harvest does not always show clear resilience back to pre-harvest functional portfolio.
ENVIRONMENTAL ENTOMOLOGY
(2021)
Article
Environmental Sciences
Matthew J. Pringle, Steven G. Bray, John O. Carter
Summary: The study found that various factors, such as years since clearing, clearing method, bioregion, and number of times burned, strongly influence the disappearance of CWD following a land clearing event in Queensland. In typical conditions, it was predicted to take 38 years for 95% of CWD to disappear, but uncertainty in the data and model could lead to a range of 5 to >100 years for CWD disappearance. Contrary to official greenhouse gas reporting in Australia, it was found that a significant amount of CWD may not be burned soon after clearing, leading to delayed CO2 emissions.
CARBON BALANCE AND MANAGEMENT
(2021)
Article
Forestry
Shubo Huang, Lixiang Wen, Shuai Yin, Meng Guo, Fangbing Yu
Summary: This study analyzed the characteristics of coarse woody debris decomposition in Larix gmelinii forests over 33 years after a fire, revealing a positive correlation between decay rate and decay class. Factors such as nutrient content, density, and water content explained the variance in decay rate, and the decomposition process was mainly influenced by the structural component of the debris and its nitrogen and water contents. This paper quantified indicators affecting CWD decay to explain the decomposition process.
JOURNAL OF FORESTRY RESEARCH
(2021)
Article
Environmental Sciences
Mark A. Bradford, G. F. Ciska Veen, Ella M. Bradford, Kristofer R. Covey, Thomas W. Crowther, Nicholas Fields, Paul T. Frankson, Javier Gonzalez-Rivero, Fiona V. Jevon, Sara E. Kuebbing, Steven McBride, Jacqueline E. Mohan, Emily E. Oldfield, Angela M. Oliverio, Alexander Polussa, Corinna Steinrueck, Michael S. Strickland, Elisabeth B. Ward, Carl Wepking, Daniel S. Maynard
Summary: This study investigates the effect of downed coarse woody material (CWM) on the decomposition rates of fine woody material (FWM). The results show that the presence of CWM accelerates the decomposition of FWM, and this effect becomes stronger over time.
Article
Biodiversity Conservation
Zhihui Wang, Mingzhen Xu, Fei Li, Yi Bai, Jianfeng Hou, Xuqing Li, Rui Cao, Yuyue Deng, Yurui Jiang, Huaibin Wang, Wanqin Yang
Summary: This study investigated the composition and diversity of the soil bacterial community beneath debris with varying decay classes and diameters in six different successional forests. The results showed that the composition and functional groups of the soil bacterial communities varied greatly with forest succession, decay classes, and debris diameters. The structure of the bacterial communities varied significantly among different forest successions and diameters, but not decay classes. The presence of nitrogen-fixing bacteria in highly decayed wood debris indicated that the existence of coarse woody debris in forest ecosystems could stimulate nitrogen fixation.
GLOBAL ECOLOGY AND CONSERVATION
(2023)
Article
Ecology
S. A. Moshnikov, V. A. Anan'ev, I. Romashkin
Summary: The study revealed that the amount of coarse woody debris (CWD) decreases with stand age in bilberry pine forests in the southern part of the Republic of Karelia, while the stocks of wood detritus increase. Additionally, there are differences in CWD stocks in terms of components and decay level among different age groups.
RUSSIAN JOURNAL OF ECOLOGY
(2021)
Article
Multidisciplinary Sciences
Zhaohua Dai, Carl C. Trettin, Andrew J. Burton, Martin F. Jurgensen, Deborah S. Page-Dumroese, Brian T. Forschler, Jonathan S. Schilling, Daniel L. Lindner
Summary: A process-based model, CWDDAT, accurately predicts the decomposition of Coarse Woody Debris (CWD) in forests under varying conditions. The model was validated using data from nine Experimental Forests in the USA, demonstrating its applicability for large-scale assessments of CWD dynamics and fine-scale considerations regarding CWD carbon fate.
Article
Forestry
Silva Senhofa, Guntars Snepsts, Karlis Bickovskis, Ieva Jaunslaviete, Liga Liepa, Inga Straupe, Aris Jansons
Summary: Research shows that in European aspen stands, unmanaged areas have a large amount of deadwood, while old-growth stands have a higher proportion of deciduous deadwood, along with a significant amount of recently dead trees, indicating early senescence of the dominant aspen cohort.
Article
Forestry
Mari Jonsson, Jan-Olov Weslien, Lena Gustafsson
Summary: Retaining trees in small patches at final harvest is a common forest conservation measure to maintain diversity. In this study, we found that most small retention patches did not experience severe tree mortality and had a consistent amount of coarse woody debris over time. Wetland and rocky areas had higher volumes of CWD compared to other patch types.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
Jan Merganic, Zuzana Dudakova, Katarina Merganicova, Maria Vlckova, Michal Ferencik, Vladimir Jusko, Michal Allman
Summary: The study examined the impact of deadwood on surface water run-off through laboratory simulations. Various factors such as deadwood coverage, spatial arrangement, moisture, decay stage, slope inclination, and rainfall intensity were analyzed. The results showed that slope inclination significantly affected water run-off, with 1% slope experiencing only 32% of the run-off observed from 25% slope. The fastest run-off occurred with 15% deadwood coverage, while 30% coverage resulted in only 75% of the run-off compared to 15% coverage. The decay stage of deadwood also played a significant role, with old deadwood leading to one-third lower run-off than fresh wood. Deadwood arranged along the contour line resulted in the fastest run-off, while random distribution led to the slowest run-off.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Biodiversity Conservation
Leszek Bujoczek, Malgorzata Bujoczek
Summary: Deadwood is a crucial component of habitats for saproxylic organisms, with its volume and diversity playing vital roles. A multivariate multiple regression model was used to analyze the factors influencing multiple characteristics of deadwood. The study found that deadwood diversity strongly depends on deadwood volume and species composition. Other factors, such as site fertility and moisture, stand age and DBH structure, and terrain type, have a less pronounced effect. Analysis of individual qualitative characteristics revealed common factors influencing deadwood thickness, position, and decay stage. The study also found a positive correlation between the diversity levels of individual deadwood characteristics.
ECOLOGICAL INDICATORS
(2022)
Article
Ecology
Jaroslaw Lasota, Wojciech Piaszczyk, Ewa Blonska
Summary: Deadwood is a crucial element in the forest ecosystem, storing necessary nutrients for plant functioning. The study reveals that different wood species release varying components during decay, influenced by seasonal variations, temperature, and humidity. The research highlights that decaying fine woody debris is integral to nutrient cycling and deadwood decomposition is a vital ecosystem process for nutrient delivery to the soil.
ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
(2022)
Article
Geography, Physical
Kailey V. V. Adams, Jean L. L. Dixon, Andrew C. C. Wilcox, Dave McWethy
Summary: Interactions between vegetation and sediment in post-fire landscapes are important for sediment connectivity. Previous research focused on vegetation removal but overlooked the effects of coarse woody debris (CWD) added after fires. Our study investigates the impacts of CWD on hillslope sediment storage and highlights its role in limiting rapid sediment movement. We propose a new conceptual model, conduct tilt table experiments, and estimate hillslope sediment storage capacity in a burned catchment using high-resolution topographic data and digitization of downed logs. The results suggest that fire-produced CWD serves as an important source of sediment disconnectivity in catchments and should be incorporated into models of sediment connectivity.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Plant Sciences
Louis De Grandpre, Daniel D. Kneeshaw, Sophie Perigon, Dominique Boucher, Maryse Marchand, Deepa Pureswaran, Martin P. Girardin
JOURNAL OF ECOLOGY
(2019)
Article
Ecology
Niko Kulha, Leena Pasanen, Lasse Holmstrom, Louis De Grandpre, Timo Kuuluvainen, Tuomas Aakala
Article
Ecology
Niko Kulha, Leena Pasanen, Lasse Holmstrom, Louis De Grandpre, Sylvie Gauthier, Timo Kuuluvainen, Tuomas Aakala
Article
Ecology
Zelin Liu, Changhui Peng, Louis De Grandpre, Jean-Noel Candau, Timothy Work, Xiaolu Zhou, Daniel Kneeshavv
Article
Agronomy
Lorena Balducci, Angelo Fierravanti, Sergio Rossi, Sylvain Delzon, Louis De Grandpre, Daniel D. Kneeshaw, Annie Deslauriers
AGRICULTURAL AND FOREST METEOROLOGY
(2020)
Article
Biodiversity Conservation
Rupert Seidl, Juha Honkaniemi, Tuomas Aakala, Alexey Aleinikov, Per Angelstam, Mathieu Bouchard, Yan Boulanger, Philip J. Burton, Louis De Grandpre, Sylvie Gauthier, Winslow D. Hansen, Jane U. Jepsen, Kalev Jogiste, Daniel D. Kneeshaw, Timo Kuuluvainen, Olga Lisitsyna, Kobayashi Makoto, Akira S. Mori, Deepa S. Pureswaran, Ekaterina Shorohova, Elena Shubnitsina, Anthony R. Taylor, Nadezhda Vladimirova, Floortje Vodde, Cornelius Senf
Article
Forestry
F. Bognounou, L. A. Venier, S. L. Van Wilgenburg, I Aubin, J-N Candau, A. Arsenault, C. Hebert, J. Ibarzabal, S. J. Song, L. De Grandpre
Summary: The study revealed that salvage-logged habitats have significantly lower taxonomic diversity, functional diversity, and functional and phylogenetic redundancy compared to burned and traditionally logged habitats, with a lower frequency of insectivores as well. Cumulative disturbances have a negative effect on early assembly of bird communities. Further assessments at landscape level are encouraged to better plan for the conservation of bird functional structure.
CANADIAN JOURNAL OF FOREST RESEARCH
(2021)
Article
Forestry
Eliana Molina, Osvaldo Valeria, Louis De Grandpre, Jorge Andres Ramirez, Dominic Cyr, Yan Boulanger
Summary: The study indicates that forest management intensity and climate change scenarios are key factors influencing forest dynamics in the eastern Canadian boreal forests. While forest management plays a crucial role in shaping the landscape of southern forests, a mixed effect of climate change and forest management is observed in the northern forests.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Biodiversity Conservation
Bastien Bellemin-Noel, Stephane Bourassa, Emma Despland, Louis De Grandpre, Deepa S. Pureswaran
Summary: Global warming can lead to phenological shifts that accelerate the development of eastern spruce budworm larvae and advance their pupation and budburst on black spruce and balsam fir. However, under higher temperatures, black spruce may become more susceptible to infestations, resulting in similar success rates for the budworm on both black spruce and balsam fir.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Ecology
Marion Germain, Daniel Kneeshaw, Louis De Grandpre, Melanie Desrochers, Patrick M. A. James, Udayalakshmi Vepakomma, Jean-Francois Poulin, Marc-Andre Villard
Summary: Three species of warblers, Tennessee, Cape May, and bay-breasted warbler, show positive responses to defoliation caused by spruce budworm outbreaks, with bay-breasted warbler consistently showing an increased presence 3-4 years before defoliation is detectable. This early response of bay-breasted warbler could be utilized for predicting future epicenters of spruce budworm outbreaks and targeting sampling efforts.
Article
Biology
Louis De Grandpre, Maryse Marchand, Daniel D. Kneeshaw, David Pare, Dominique Boucher, Stephane Bourassa, David Gervais, Martin Simard, Jacob M. Griffin, Deepa S. Pureswaran
Summary: The progression of a spruce budworm outbreak over seven years is associated with increased soil nutrient fluxes and availability, as well as improved foliage quality in surviving host trees. This positive bottom-up feedback sustains the insect outbreak. Both predation and host nutritional quality influence insect outbreaks, and defoliation caused by insects can also alter the bottom-up effects. Our study demonstrates that herbivory leads to a positive feedback on outbreak severity through improved soil nutrient availability and increased nutrient concentration in plant tissues.
COMMUNICATIONS BIOLOGY
(2022)
Review
Forestry
Yan Boulanger, Jesus Pascual Puigdevall, Annie Claude Belisle, Yves Bergeron, Marie-Helene Brice, Dominic Cyr, Louis De Grandpre, Daniel Fortin, Sylvie Gauthier, Pierre Grondin, Guillemette Labadie, Mathieu Leblond, Maryse Marchand, Tadeusz B. Splawinski, Martin-Hugues St-Laurent, Evelyne Thiffault, Junior A. Tremblay, Stephen H. Yamasaki
Summary: This article emphasizes the importance of regional analysis in assessing the vulnerabilities of forest ecosystems and the forest sector to climate change. The Regional Integrated Assessment of climate change on Quebec's forests is presented, revealing significant impacts on ecological processes, forest landscapes, and wildlife habitats. The adaptation of the forest sector is crucial to mitigate the negative economic and ecological consequences and maintain a balance among social, ecological, and economic values.
CANADIAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Ecology
Daniel D. Kneeshaw, Louis De Grandpre, Loic D'Orangeville, Maryse Marchand, Jeanne Moisan-Perrier, Louis-Etienne Robert, Mathieu Bouchard
Summary: This study compares the effects of insect and harvest disturbances on forest structure during the 1970-80s outbreak in Quebec. The results show that harvesting primarily targeted spruce during the outbreak period, while the spruce budworm mainly defoliated fir stands. In terms of regeneration, the spruce budworm tends to reduce fir and favor spruce, while harvesting has the opposite effect. Additionally, small stands of fir and large stands of spruce are found to experience the least damage from the spruce budworm. Therefore, efforts should be made to promote spruce recruitment and increase its abundance at both the stand and landscape scale to mitigate the impact of the spruce budworm.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2022)
Article
Computer Science, Information Systems
David L. P. Correia, Wassim Bouachir, David Gervais, Deepa Pureswaran, Daniel D. Kneeshaw, Louis De Grandpre
Article
Ecology
Angelo Fierravanti, Sergio Rossi, Daniel Kneeshaw, Louis De Grandpre, Annie Deslauriers
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2019)