Species associations during the succession of wood-inhabiting fungal communities

Ottosson, Elisabet; Nordén, Jenni; Dahlberg, Anders; Edman, Mattias; Jönsson, Mari; Larsson, Karl‐Henrik; Olsson, Jörgen; Penttilä, Reijo; Stenlid, Jan; Ovaskainen, Otso

doi:10.1016/j.funeco.2014.03.003

Cited by 107 publications

(92 citation statements)

References 58 publications

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“…), which explains why decay stages hold distinct fungal communities (Ottosson et al . ). In late decay stages dead wood turns into soil, and thus other trophic groups than wood decomposers appear, such as mycorrhizal fungi (Rajala et al .…”

Section: Discussionmentioning

confidence: 97%

Measuring and predicting the influence of traits on the assembly processes of wood‐inhabiting fungi

2017

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Summary The identification of traits that influence the responses of the species to environmental variation provides a mechanistic perspective on the assembly processes of ecological communities. While much research linking functional ecology with assembly processes has been conducted with animals and plants, the development of predictive or even conceptual frameworks for fungal functional community ecology remains poorly explored. Particularly, little is known about the contribution of traits to the occurrences of fungal species under different environmental conditions. Wood‐inhabiting fungi are known to strongly respond to habitat disturbance, and thus provide an interesting case study for investigating to what extent variation in occurrence patterns of fungi can be related to traits. We apply a trait‐based joint species distribution model to a data set consisting of fruit‐body occurrence data on 321 wood‐inhabiting fungal species collected in 22 460 dead wood units from managed and natural forest sites. Our results show that environmental filtering plays a big role on shaping wood‐inhabiting fungal communities, as different environments held different communities in terms of species and trait compositions. Most importantly, forest management selected against species with large and long‐lived fruit‐bodies as well as late decayers, and promoted the occurrences of species with small fruit‐bodies and early decayers. A strong phylogenetic signal in the data suggested the existence of also some other functionally important traits than the ones we considered. We found that those species groups that were more prevalent in natural conditions had more associations to other species than species groups that were tolerant to or benefitted from forest management. Therefore, the changes that forest management causes on wood‐inhabiting fungal communities influence ecosystem functioning through simplification of interactive associations among the fungal species. Synthesis. Our results show that functional traits are linked to the responses of wood‐inhabiting fungi to variation in their environment, and thus environmental changes alter ecosystem functions via promoting or reducing species with different fruit‐body types. However, further research is needed to identify other functional traits and to provide conclusive evidence for the adaptive nature of the links from traits to occurrence patterns found here.

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Section: Discussionmentioning

confidence: 97%

Measuring and predicting the influence of traits on the assembly processes of wood‐inhabiting fungi

2017

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“…These aspects may counteract any mass effect. Hence, the bark beetle attack and the related pathway of fungal colonization might follow a nonrandom trajectory (priority effect) with a limited number of fungal species involved in this process (Fukami et al, 2010;Hiscox et al, 2015;Ottosson et al, 2014). Bark beetles infect trees with bluestain fungi, such as Ceratocystis polonica, which contributes to the dieback (Wermelinger, 2004).…”

Section: Discussionmentioning

confidence: 99%

Functional response of lignicolous fungal guilds to bark beetle deforestation

Bässler

Müller

Cadotte

et al. 2016

Ecological Indicators

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“…Additions (via inoculations) of horizontally transmitted microbes are best timed to take advantage of the initial stages of community assembly (Fukami and Morin, 2003;Kennedy et al, 2009) in freshly emerged host tissues. The priority effects of initial colonization can determine the structure of the microbial community associated with plant tissues (Kennedy et al, 2009;Ottosson et al, 2014;Werner and Kiers, 2014). Adame-Álvarez et al (2014) found that timing of endophyte inoculations could alter the form of disease modification from antagonism to enabling.…”

Section: Discussionmentioning

confidence: 99%

The frequency of modification of Dothistroma pine needle blight severity by fungi within the native range

Ridout

Newcombe

2015

Forest Ecology and Management

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Species associations during the succession of wood-inhabiting fungal communities

Cited by 107 publications

References 58 publications

Measuring and predicting the influence of traits on the assembly processes of wood‐inhabiting fungi

Measuring and predicting the influence of traits on the assembly processes of wood‐inhabiting fungi

Functional response of lignicolous fungal guilds to bark beetle deforestation

The frequency of modification of Dothistroma pine needle blight severity by fungi within the native range

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