The effects of forest management on wood-inhabiting fungi occupying dead wood of different diameter fractions

Juutilainen, Katja; Mönkkönen, Mikko; Kotiranta, Heikki; Halme, Panu

doi:10.1016/j.foreco.2013.11.019

Cited by 64 publications

(51 citation statements)

References 36 publications

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“…insperata, which was one of the most abundant species in afforested fields, but absent from every other forest type. This species was practically always found on small diameter birch wood (only one additional observation from unidentified deciduous wood), a substratum very common in all the deciduous forest types (Juutilainen et al 2016) and also present in all coniferous forests (Juutilainen et al 2014). It seems that some unknown factors play an additional role in the habitat selection of this and of other similar species.…”

Section: Discussionmentioning

confidence: 79%

“…This is logical since the number of small dead wood units per hectare is very similar in spruce and pine dominated natural and managed forests (Table 3.) (Juutilainen et al 2014). It suggests equal availability of resources in natural and managed coniferous forests for species associated with fine woody debris.…”

Section: Discussionmentioning

confidence: 99%

“…Fine woody debris is a very abundant resource in most forest types (Juutilainen et al 2011, Juutilainen et al 2014, Juutilainen et al 2016) and its supply is continuous in most forests. Thus, specialization in finest woody debris could rationally be a winning evolutionary strategy.…”

Section: Discussionmentioning

confidence: 99%

“…The abundance data used in this paper combines the datasets of two earlier studies (Juutilainen et al 2014, Juutilainen et al 2016. The complete data comprises over 10 000 observations of woodinhabiting fungi, including species and genus level observations as well as unidentified specimens belonging to higher level taxa (Supplementary Appendix B).…”

Section: Data Selectionmentioning

confidence: 99%

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Resource use of wood-inhabiting fungi in different boreal forest types

et al. 2017

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Generalist species are usually widespread and abundant, and thrive in heterogeneous environments.Specialists, in turn, are generally more restricted in their range, and benefit from more stable conditions. Therefore, increasing human-induced disturbance can have more negative effects on specialist than generalist species. We assessed the specialization of 77 wood-inhabiting fungal species across seven boreal forest types and different substratum qualities. A significantly higher number of specialist species was associated with herb-rich forests and afforested fields than with managed coniferous forests and wood pastures, the number of specialists associated with natural coniferous forests being intermediate. Also, forest type specialists were indicated to be specialists for their substratum tree species as well, but specialization in substratum diameter was not connected with other kinds of specialization. Species with restricted resource or habitat preferences can less readily respond to environmental change, and therefore are more vulnerable to extinction.

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Section: Discussionmentioning

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Data Selectionmentioning

confidence: 99%

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Resource use of wood-inhabiting fungi in different boreal forest types

et al. 2017

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“…In this respect, saprotrophic fungi play an important role in the turnover of carbon and nutrients in boreal forests (Stokland et al 2012). Even small woody debris, such as needles and twigs, contain fungal mycelia (Juutilainen et al 2014), and it seems likely that at least some wood-decaying species are present in all dead wood at any time (Boddy et al 2008). In boreal forests, up to 30% of the total biomass (Stokland 2001) may be present in the form of coarse or fine woody debris (CWD, FWD; Delaney et al 1998;Houghton et al 2001;Siitonen 2001).…”

Section: Introductionmentioning

confidence: 99%

Increased CO2 evolution caused by heat treatment in wood-decaying fungi

Carlsson

Jonsson

2017

Mycol Progress

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Wood-decaying fungi are regarded as the main decomposers of woody debris in boreal forests. Given that fungal respiration makes a significant contribution to terrestrial carbon flows, it is important to understand how the wooddecaying fungal metabolism is regulated in relation to different environmental conditions and disturbances. In the present study, we investigated the effect of temperature stress on wood decomposition rate in 18 species of wood-decaying fungi, representing a broad range of species-habitat associations. Heat shock duration and temperature were calibrated to match the conditions of a forest fire. We found a general increase in fungal decay rate after heat shock; the response was more pronounced in species associated with fire-prone forests. The underlying mechanism is unclear, but possibly relates to an up-regulation at the cellular level in response to heat shock. Our results show that the decomposition rate of dead wood can be strongly affected by environmental triggers.

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The role of novel forest ecosystems in the conservation of wood‐inhabiting fungi in boreal broadleaved forests

Juutilainen

Mönkkönen

Kotiranta

et al. 2016

Ecology and Evolution

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The increasing human impact on the earth's biosphere is inflicting changes at all spatial scales. As well as deterioration and fragmentation of natural biological systems, these changes also led to other, unprecedented effects and emergence of novel habitats. In boreal zone, intensive forest management has negatively impacted a multitude of deadwood‐associated species. This is especially alarming given the important role wood‐inhabiting fungi have in the natural decay processes. In the boreal zone, natural broad‐leaved‐dominated, herb‐rich forests are threatened habitats which have high wood‐inhabiting fungal species richness. Fungal diversity in other broadleaved forest habitat types is poorly known. Traditional wood pastures and man‐made afforested fields are novel habitats that could potentially be important for wood‐inhabiting fungi. This study compares species richness and fungal community composition across the aforementioned habitat types, based on data collected for wood‐inhabiting fungi occupying all deadwood diameter fractions. Corticioid and polyporoid fungi were surveyed from 67 130 deadwood particles in four natural herb‐rich forests, four birch‐dominated wood pastures, and four birch‐dominated afforested field sites in central Finland. As predicted, natural herb‐rich forests were the most species‐rich habitat. However, afforested fields also had considerably higher overall species richness than wood pastures. Many rare or rarely collected species were detected in each forest type. Finally, fungal community composition showed some divergence not only among the different habitat types, but also among deadwood diameter fractions. Synthesis and applications: In order to maintain biodiversity at both local and regional scales, conserving threatened natural habitat types and managing traditional landscapes is essential. Man‐made secondary woody habitats could provide the necessary resources and serve as surrogate habitats for many broadleaved deadwood‐associated species, and thus complement the existing conservation network of natural forests.

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The effects of forest management on wood-inhabiting fungi occupying dead wood of different diameter fractions

Cited by 64 publications

References 36 publications

Resource use of wood-inhabiting fungi in different boreal forest types

Resource use of wood-inhabiting fungi in different boreal forest types

Increased CO2 evolution caused by heat treatment in wood-decaying fungi

The role of novel forest ecosystems in the conservation of wood‐inhabiting fungi in boreal broadleaved forests

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