Partial cutting does not maintain spider assemblages within the observed range of natural variability in Eastern Canadian black spruce forests

Paradis, Simon; Work, Timothy T.

doi:10.1016/j.foreco.2011.08.032

Cited by 21 publications

(14 citation statements)

References 46 publications

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“…For ground beetles and other litter arthropods, removal of the forest overstory often provokes a generalized response pattern, whereby species associated with closed canopy forest are reduced and open-habitat species are promoted [53,54]. Retaining 50% or more of stand basal area generally allows forest associated species to persist following harvesting [20,55], although in some cases, remnant populations may persist in reduced numbers (Graham-Sauvé et al, submitted manuscript).…”

Section: Response Of Ground Beetles To Harvestingmentioning

confidence: 99%

Ecosystem Responses to Partial Harvesting in Eastern Boreal Mixedwood Stands

Brais

Work

Robert

et al. 2013

Forests

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Partial harvesting has been proposed as a key aspect to implementing ecosystem management in the Canadian boreal forest. We report on a replicated experiment located in boreal mixedwoods of Northwestern Quebec. In the winter of 2000-2001, two partial harvesting treatments, one using a dispersed pattern, and a second, which created a (400 m 2 ) gap pattern, were applied to a 90-year-old aspen-dominated mixed stand. The design also included a clear cut and a control. Over the course of the following eight years, live tree, coarse woody debris, regeneration and ground beetles were inventoried at variable intervals. Our results indicate that all harvesting treatments created conditions OPEN ACCESSForests 2013, 4 365 favorable to balsam fir (Abies balsamea) sapling growth and trembling aspen (Populus tremuloides) sapling recruitment. However, balsam fir and trembling aspen regeneration and ground beetles response to gap cuts were closer to patterns observed in clear cuts than in dispersed harvesting. The underlying reasons for these differing patterns can be linked to factors associated with the contrasting light regimes created by the two partial harvesting treatments. The study confirms that partially harvesting is an ecologically sound approach in boreal mixedwoods and could contribute to maintaining the distribution of stand ages at the landscape level.

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Section: Response Of Ground Beetles To Harvestingmentioning

confidence: 99%

Ecosystem Responses to Partial Harvesting in Eastern Boreal Mixedwood Stands

Brais

Work

Robert

et al. 2013

Forests

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“…Forest-dependent species of bryophytes, lichens and invertebrates make up the most species rich groups across the landscape (Paradis and Work 2011;Bergeron and Fenton 2012). These groups respond to fire severity and changes in forest structure (Boudreault et al 2009;Paradis and Work 2011;Bergeron and Fenton 2012;Fenton and Bergeron 2013;Doblas-Miranda and Work Fig. 4 In paludified forests, stand dynamics can be synthesized using the cohort approach (Bergeron et al 1999;Harvey et al 2002).…”

Section: Biodiversitymentioning

confidence: 99%

“…Modified from Lecomte et al (2006a), Simard et al (2009), andFenton et al (2009) 2015). Since each of these species are associated with specific stand structures, community composition is greatly influenced by soil burn severity and time elapsed since fire (Bergeron and Fenton 2012;Boudreault et al 2009;Paradis and Work 2011;Fenton and Bergeron 2013;Doblas-Miranda and Work 2015).…”

Section: Biodiversitymentioning

confidence: 99%

“…However, the structurally diverse second-cohort stands that are at an intermediate level of paludification are particularly rich in bryophtes, spiders, orbatid mites, and birds (Fenton and Bergeron 2008;Paradis and Work 2011;Doblas-Miranda and Work 2015). This is partially due to the presence of microhabitats, particularly deadwood and canopy gaps (Fenton and Bergeron 2008;Paradis and Work 2011;Doblas-Miranda and Work 2015;Cadieux and Drapeau 2017). Ultimately, diversity declines in all of these groups as paludification continues and stands open up completely and deadwood is buried in the organic layer, reducing its availability (Moroni et al 2015).…”

Section: Biodiversitymentioning

confidence: 99%

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Ecosystem management in paludified boreal forests: enhancing wood production, biodiversity, and carbon sequestration at the landscape level

Lafleur¹,

Fenton²,

Simard³

et al. 2018

For. Ecosyst.

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Canada's boreal forest represents an important contributor of the world's wood supply industry. However, maintaining or increasing productivity of the boreal forest may be challenging in areas dominated by forested peatlands. Moreover, sustainable management of these forests must also consider other important aspects of the forest ecosystem such as biodiversity and carbon sequestration. To address these concerns, ecosystem-based management has been implemented in some Canadian jurisdictions, such as in regions where a large portion of the boreal forest is dominated by forested peatlands. The objectives of this paper are (1) to summarize our current understanding of how natural disturbances influence stand dynamics and biodiversity in forested peatlands, and (2) to review the main differences between natural and managed forest stands with respect to soil properties, stand productivity, understory plant communities. We also discuss how even-age management regime succeeds or fails to preserve old forests and how this loss affects both forest structure and habitat diversity at the landscape level. We conclude by showing how, in boreal forested peatlands, forest management could contribute to carbon sequestration and mitigate projected climate change.

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“…1; Lecomte et al 2006b). This chronosequence has been wellstudied in terms aboveground live biomass (Lecomte et al 2006b), understory vegetation , diversity of mosses (Fenton and Bergeron 2006), lichens (Boudreault et al 2009), litter-dwelling arthropods (Paradis and Work 2011) and forest productivity (Simard et al 2007). We added three additional stands (vis.…”

Section: Study Sitesmentioning

confidence: 99%

Paludification of boreal soils reduces wood decomposition rates and increases wood‐based carbon storage

et al. 2015

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Abstract. Over long time periods, paludification reduces aboveground productivity resulting in forest retrogression. Paludified forests are typified by intense accumulation of the soil organic layer and a reduction in soil temperatures and nutrient availability. En route to paludification, early successional forests experience large inputs of deadwood biomass during the senescence of the post-fire cohort, much of which may be entombed in this rapidly growing soil organic layer. Here we examined the effects of paludification across a .2000-year chronosequence of black spruce forests on wood decomposition using three complementary approaches. We (1) repeatedly measured wood density of logs through time, (2) utilize a time-series of logs that varied in time since death, and (3) estimate woody biomass at the stand level as it progresses from live trees to snags, logs and ultimately to buried or decomposed deadwood. Together these approaches demonstrated a 6-7-year delay before the onset of rapid decomposition. We also found strong evidence that paludification results in a large proportion of logs becoming buried in the soil organic layer. Stand level modeling indicates that the rates of accumulation of buried deadwood were greatest following the senescence of the post-fire cohort when both soil organic layer build-up and creation of deadwood peaked. Following this period of high deadwood creation, stands enter a retrogressive state whereby productivity continues to decline albeit more slowly. Continued losses in woody carbon biomass from trees during this retrogressive state are offset by lower wood decomposition rates and a high biomass of accumulated buried deadwood, essentially stabilizing the wood based carbon budget in these ecosystems. We recommend that partial cutting be conducted prior to or near the senescence of the post-fire cohort to improve emulation of natural forest succession in terms of both live tree and deadwood biomass. Furthermore, deadwood during this period has an extremely short residence time and the dynamics of deadwood should recover much quicker than if harvesting is conducted later in succession when there is less live tree biomass and deadwood has longer residence times.

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Partial cutting does not maintain spider assemblages within the observed range of natural variability in Eastern Canadian black spruce forests

Cited by 21 publications

References 46 publications

Ecosystem Responses to Partial Harvesting in Eastern Boreal Mixedwood Stands

Ecosystem Responses to Partial Harvesting in Eastern Boreal Mixedwood Stands

Ecosystem management in paludified boreal forests: enhancing wood production, biodiversity, and carbon sequestration at the landscape level

Paludification of boreal soils reduces wood decomposition rates and increases wood‐based carbon storage

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