Wood-decomposing fungi and seed-tree cutting: A 40-year perspective

Sippola, Anna-Liisa; Renvall, Pertti

doi:10.1016/s0378-1127(98)00398-3

Cited by 116 publications

(82 citation statements)

References 22 publications

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“…In contrast to other studies that have reported declines in (Dahlberg et al, 2001;Twieg et al, 2007), or no effect on (Jones et al 2003), EcM fungi after clearcut logging, we found a significant increase in the relative richness and evenness of fungal fingerprints in response to clearcut logging, possibly driven by changes in saprotrophic fungi. The removal of trees by logging causes changes in substrate input to the forest floor and, depending on the distribution of woody debris, the diversity of saprotrophic fungi may be affected (Sippola and Renvall, 1999). We found that low-severity burning changed fungal community structure and increased the evenness, but had no effect on the relative richness of fungal fingerprints, a result consistent with findings from other studies (Jonsson et al, 1999).…”

Section: Discussionsupporting

confidence: 90%

Impact of wildfire intensity and logging on fungal and nitrogen-cycling bacterial communities in British Columbia forest soils

Kennedy

Egger

2010

Forest Ecology and Management

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Wildfire and logging are common disturbances in the forests of northwestern North America, causing changes in soil chemistry and microbiology, including fungal and nitrogen-cycling bacterial communities. These organisms play key roles in nutrient cycling, and affect the regeneration of tree seedlings after disturbance. We studied the effects of wildfire and logging on fungal and nitrogen-cycling communities in the rhizosphere of 16 month-old Douglas-fir seedlings as they regenerated in burned and logged soils. Seeds were planted against root windows that were set up vertically in the soil, with a removable front panel used to access the seedling rhizosphere soil surface.Windows were established in control, lightly burned, and severely burned plots, as well as two types of logged plots (clearcut and screefed clearcut). Soil scrapings from the root window-soil interface were taken and the structure of fungal and nitrogen-cycling communities was resolved using length-heterogeneity PCR (LH-PCR) of fungal nuclear ribosomal RNA, and terminal restriction fragment length polymorphism (T-RFLP) analysis of nifH and nosZ genes. We found striking differences in the community structure of fungal, denitrifying, and N-fixing communities in response to burning and logging. With the exception of clearcut and screefed clearcut, which were generally similar, each treatment had a unique impact on community structure for these genes.Burning and logging also impacted the relative richness and evenness of these communities. Fungal relative richness and evenness increased in response to logging and severe burning, while denitrifier relative richness and evenness increased in all disturbance treatments, and N-fixing bacterial relative richness and evenness decreased in response to burning. The greatest differences in microbial community structure, relative 3 richness, and evenness were found in the comparisons of lightly burned and logged treatments. The results suggest that the presence of an intact forest floor influences soil microbial communities less than the presence of living trees.

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Section: Discussionsupporting

confidence: 90%

Impact of wildfire intensity and logging on fungal and nitrogen-cycling bacterial communities in British Columbia forest soils

Kennedy

Egger

2010

Forest Ecology and Management

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“…It is one of the most relevant components of forest biodiversity, and it represents an important forest carbon pool (Stokland et al 2004, Woodall et al 2009). Dead trees, stumps, and fine and coarse woody debris (CWD) are essential to forest ecosystem dynamics by providing food and habitat for taxa such as fungi, arthropods, birds, insects, and epiphytic lichens (Sippola and Renvall 1999, Bowman et al 2000, Ferris et al 2000, Siitonen et al 2000, Similä et al 2003, Jonsson et al 2005, Odor et al 2006, Londsale et al 2008, Winter and Möller 2008. Approximately 20 -25% of forest species depend on decaying wood (Boddy 2001, Siitonen 2001, although decayed material is often viewed as a limited habitat resource for some organisms (Hagen and Grove 1999).…”

Section: Eadwood Is Acknowledged To Be a Criticalmentioning

confidence: 99%

Assessing Deadwood Using Harmonized National Forest Inventory Data

Rondeux¹,

Bertini²,

Bastrup-Birk³

et al. 2012

Forest Science

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Abstract:Deadwood plays an important role in forest ecological processes and is fundamental for the maintenance of biological diversity. Further, it is a forest carbon pool whose assessment must be reported for international agreements dealing with protection and forest management sustainability. Despite wide agreement on deadwood monitoring by national forest inventories (NFIs), much work is still necessary to clarify definitions so that estimates can be directly compared or aggregated for international reporting. There is an urgent need for an international consensus on definitions and agreement on harmonization methods. The study addresses two main objectives: to analyze the feasibility of harmonization procedures for deadwood estimates and to evaluate the impact of the harmonization process based on different definitions on final deadwood estimates. Results are reported for an experimental harmonization test using NFI deadwood data from 9,208 sample plots measured in nine European countries and the United States. Harmonization methods were investigated for volume by spatial position (lying or standing), decay classes, and woody species accompanied by accuracy assessments. Estimates of mean plot volume based on harmonized definitions with minimum length/height of 1 m and minimum diameter thresholds of 10, 12, and 20 cm were on average 3, 8, and 30% smaller, respectively, than estimates based on national definitions. Volume differences were less when estimated for various deadwood categories. An accuracy assessment demonstrated that, on average, the harmonization procedures did not substantially alter deadwood observations (root mean square error 23.17%). FOR. SCI. 58(3):269 -283.

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“…As a consequence of their high structural heterogeneity levels, they provide special habitats and trophic niches necessary for the existence and development of many species, such as birds, invertebrates, lichens, bryophytes and particularly saproxylic fungi (Harmon et al 1986, Sippola & Renvall 1999, Heilmann-Clausen 2001, Siitonen 2001, Humphrey et al 2002, Jansson & Andrén 2003, Nordén et al 2007, Kraus & Krumm 2013. In this sense, forest ecosystems with a high degree of naturalness could provide a reference for implementing sustainable forest management techniques for conservation purposes, as well as a tool for better understanding the role of forests in preser- ving ecosystem services.…”

Section: Introductionmentioning

confidence: 99%

Stand structure and deadwood amount influences saproxylic fungal biodiversity in Mediterranean mountain unmanaged forests

Persiani¹,

Lombardi²,

Lunghini³

et al. 2016

iForest

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Old-growth forests are key elements of ecosystem diversity and conservation strategies, providing niche differentiation and trophic pathways that produce structural and compositional heterogeneity. In these forests, deadwood is particularly important for saproxylic and mycorrhizal fungi, sustaining forest productivity and environmental services. In this study, the saproxylic fungal diversity in Mediterranean mountain forests, characterized by different management histories and forest types (holm oak and beech), was analyzed. The relationships between saproxylic fungal biodiversity and structural attributes were considered in three forest stands of the Apennines (Italy). In addition, descriptive environmental parameters and forest traits were related to prevailing fungal communities, in order to analyze the species composition and distribution patterns of saproxylic fungi resulting from the ordination processes. The study sites were selected on the basis of their late-serial stage of development. Species frequency was analyzed through multivariate techniques to test the relationships between fungi, structural attributes and environmental variables. A Detrended Correspondence Analysis (DCA) was used to investigate the response of the overall fungal community structure to environmental gradients. Living tree volume, altitude, vegetation type, and the frequency of species with ephemeral sporocarp lifespan played a crucial role in diversifying species distribution patterns. Deadwood volume and decay classes were related to taxonomic and trophic community diversity. However, differences between the considered climatic regions exerted a major role on the occurrence of fungi with ephemeral sporocarps more than deadwood abundance, utilized primarily as fructification substrate.

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Wood-decomposing fungi and seed-tree cutting: A 40-year perspective

Cited by 116 publications

References 22 publications

Impact of wildfire intensity and logging on fungal and nitrogen-cycling bacterial communities in British Columbia forest soils

Impact of wildfire intensity and logging on fungal and nitrogen-cycling bacterial communities in British Columbia forest soils

Assessing Deadwood Using Harmonized National Forest Inventory Data

Stand structure and deadwood amount influences saproxylic fungal biodiversity in Mediterranean mountain unmanaged forests

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