• Proposed
  • Under Assessment
  • Preliminary Assessed
  • DDAssessed
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Resinoporia piceata (K. Runnel, Spirin & Vlasák) Audet

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Scientific name
Resinoporia piceata
Author
(K. Runnel, Spirin & Vlasák) Audet
Common names
amylopórovka aljašská
pórnatka sitková
sitkankääpä
stankhvitkjuke
Laanekorgik
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Polyporales
Family
Fomitopsidaceae
Assessment status
Assessed
Preliminary Category
DD
Proposed by
Vladimír Kunca
Assessors
Vladimír Kunca
Comments etc.
Anders Dahlberg, Irja Saar

Assessment Notes

R-L categories correct, but text here does not match final assessment. Updated version will be published in IUCN´s Red List June or Nov 2019.

Justification

Resinoporia piceata is wood-decaying fungus with resupinate annual to perennial fruitbodies. Most records of Resinoporia piceata are from old-growth forests, where it inhabits large lying trunks of conifer trees, mostly Picea spp. The species is declining due to clear-cut forestry and fragmentation of older forests with dominance of conifers, especially spruce. It is an Eurasian species, known only from 14 countries worldwide (many of countries with only one or two localities), with very rare occurrence throughout its distribution range. The species is regarded as an indicator of old-growth forest conditions.

Decline in area and quality of old-growth and old forests with dominance or partial representation of conifers is the main threat. Many of the known sites of the species are strictly protected in Europe but some needs to be declared non-intervention areas. Currently the population size can be estimated to be about 500 mature individuals at ca. 60 localities worldwide. The species meets threshold for EN C2a(i).


Taxonomic notes

Basionym: Antrodia piceata K. Runnel, V. Spirin & J. Vlasák, in Spirin, Runnel, Vlasák, Miettinen & Põldmaa, Fungal Biology 119: 1303 (2015). The species was previously considered conspecific
with Amyloporia (Antrodia) sitchensis. The distinction of the species from morphologically similar species relies mainly on the DNA characters and distribution ranges (Spirin et al. 2015). Recently the species was moved to genus Resinoporia (Audet 2017).


Why suggested for a Global Red List Assessment?

Resinoporia piceata is wood-decaying fungus with resupinate annual to perennial fruitbodies. Most records of Resinoporia piceata are from old-growth forests, where it inhabits large lying trunks of conifer trees, mostly Picea spp. The species is declining due to clear-cut forestry and fragmentation of older forests with dominance of conifers, especially spruce. It is an Eurasian species, known only from 14 countries worldwide (many of countries with only one or two localities), with very rare occurrence throughout its distribution range. The species is regarded as an indicator of old-growth forest conditions.

Decline in area and quality of old-growth and old forests with dominance or partial composition of conifers is the main threat. many of the known sites of the species are strictly protected in Europe but some needs to be declared non-intervention areas. Currently the population size can be estimated to be about 500 mature individuals at ca. 60 localities worldwide.


Geographic range

Resinoporia piceata occurs in Eurasia, in boreal and temperate zone, but it is very rare throughout its distribution range (Spirin et al. 2015, Holec et al. 2015).


Population and Trends

Some localities of Resinoporia piceata belong among the most valuable old-growth forests in Central Europe. This applies to two localities in Slovakia (Kunca, unpublished), one in the Czech Republic (Holec et al. 2015) and two localities in Poland (Karasiński & Wołkowycki 2015). There are 8 confirmed records in Finland (Kunttu et al. 2016) and 35 records from 15 to 20 localities from old-growth forests in Estonia (Runnel & Lõhmus 2017, Runnel, pers. comm.). In Norway, 11 localities of the species are known (Rolstad & Storaunet 2015) and in Sweden ca. 7 localities (Shah & Coulson 2019). Total data for Russia are missing but based on the web literature review we can assess there are at least 5 localities of the species. In regions, where species occurs, it is very scarce (Spirin et al. 2015, Ezhov et al. 2017). In Japan probably only one locality is known (Núñez & Ryvarden 1999). In China the species occurs “occasionally” at four hosts and we can just estimate that ca. 10 localities are known (Dai 2012). Altogether ca. 60-65 localities of the species are known. Subbpopulations of the species in central Europe are fairly fragmented.

The primary habitat of Resinopoia piceata - old-growth forests with Picea spp. or Abies spp., are decreasing, especially in area in Europe. Primary forests in Europe cover only 0.7% of forest area (Sabatini et al. 2018), and it is expected the decreasing will continue. Conifers suffer in changing climate conditions and the attacked or damaged individuals and stands are cut and wood is taken from forests. Large trunks, as crucial substrate, are being decayed at many localities and no big trees occur in some areas.
Current population trend: Decreasing

Population Trend:


Habitat and Ecology

Resinoporia piceata is a wood-decaying fungus inhabiting large lying trunks of conifer trees in later stages of decay, particularly in natural and seminatural forests (Niemelä et al. 1992, Kunttu et al. 2014, Holec et al. 2015, Kunttu et al. 2016). The species is sometimes also reported from stumps and dead standing trees. It grows almost exclusively on Picea (Spirin et al. 2015), but sporadically was collected from Abies alba (Vampola & Pouzar 1992, Vlasák J. 2007, unpublished from Slovakia) and Pinus sylvestris (Niemelä et al. 1992); once from Populus (Karasiński & Wołkowycki, 2015). In China, it is reported from Larix and Cunninghamia, besides Picea and Pinus (Dai 2012). It is proposed to be old-forest indicator (Runnel & Lõhmus, 2017; Lõhmus et al. 2018). Most of localities of R. piceata are old-growth forests (Spirin et al. 2015).

Boreal ForestTemperate Forest

Threats

The habitat of R. piceata, old-growth forests with conifers, are declining due to clearcutting, intensive forest practices (e.g. processing spruce trees attacked by bark beetle) and removing logs of Picea sp. after wind storms or pest outbreaks (salvage cuttings), also from protected areas. In the well-known Bialowieza forest, the threat results from cutting in the area, especially spruce trees (Boczoń et al. 2018). Another threat, not only here, is also natural decreasing of Picea abies population due to changing climate conditions – global warming (Boczoń et al. 2018). Similar, long-term problem is well-known with regeneration and surviving of Abies alba in Europe (Elling et al. 2009). Based on presented data, large logs of fir are another important substrate for R. piceata.

Unintentional effects: subsistence/small scale (species being assessed is not the target) [harvest]Unintentional effects: large scale (species being assessed is not the target) [harvest]

Conservation Actions

Known old-growth forest localities with occurrence of R.piceata should be protected without any forest management practices. R. piceata needs coarse woody conifer debris, especially logs, in different stages of decay.

Site/area protectionResource & habitat protection

Research needed

For better understanding of different aspects of the species’ ecology making of potential conservation and management more appropriately is needed.

Population size, distribution & trendsLife history & ecologyPopulation trends

Use and Trade

Fruitbodies of the fungus are not known to be used or collected.


Bibliography

Audet S. 2017. Resinoporia Audet, gen. nov. Mushrooms nomenclatural novelties no. 7: 1.

Boczoń A., Kowalska A., Ksepko M., Sokołowski K. 2018. Climate Warming and Drought in the Bialowieza Forest from 1950–2015 and Their Impact on the Dieback of Norway Spruce Stands. Water 10(11): 1502. doi:10.3390/w10111502

Dai Y.C. 2012. Polypore diversity in China with an annotated checklist of Chinese polypores. Mycoscience 53: 49–80.

Elling W.,Dittmar C., Pfaffelmoser K., Rötzer T. 2009. Dendroecological assessment of the complex causes of decline and recovery of the growth of fir (Abies alba Mill.) in Southern Germany. Forest Ecology and Management 257: 1175–1187.

Ezhov O., Zmitrovich I., Ruokolainen A. 2017: Checklist of aphyllophoroid fungi (Agaricomycetes, Basidiomycota) in boreal forests of the Solovetsky Archipelago (Arkhangelsk Region, European Russia). Check List 13(6): 789–803.

Holec J., Kříž M., Pouzar Z., Šandová M. 2015. Boubínský prales virgin forest, a Central European refugium of boreal-montane and old-growth forest fungi. Czech Mycol. 67(2): 157–226.

Karasiński D. & Wołkowycki M. 2015. An annotated and illustrated catalogue of polypores (Agaricomycetes) of the Białowieża Forest (NE Poland). Pol Bot J. 60(2): 217–292. http://dx.doi.org/10.1515/pbj-2015-0034

Kunttu P., Pennanen J., Kekki T., Kulju M., Suominen M. 2014. Noteworthy records of aphyllophoroid fungi in Finland (Basidiomycota). Acta Mycologica 49: 221–235.

Kunttu P., Kulju M., Kekki T., Pennanen J., Savola K., Helo T., Kotiranta H. 2016. Extensions of known geographic distribution of aphyllophoroid fungi (Basidiomycota) in Finland. Mycosphere 7: 333–357.
http://dx.doi.org/10.5943/mycosphere/7/3/7

Lõhmus A., Vunk E., Runnel K. 2018. Conservation management for forest fungi in Estonia: the case of polypores. Folia Cryptogamica Estonica 55: 79−89.

Niemelä T., Kotiranta H., Pentillä R. 1992. New records of rare and threatened polypores in Finland. Karstenia 32: 81−94.

Núñez M., Ryvarden L. 1999. New and interesting polypores from Japan. Fungal Diversity 3: 107-121.

Rolstad, J. & Storaunet, K. O. 2015. Vedlevende rødliste-sopper og norsk skogbruk - en kritisk gjen-nomgang av Norsk rødliste for arter 2010. Oppdragsrapport 05/2015, Norsk institutt for skog og landskap. [in Norwegian]

Runnel K. & Lõhmus A. 2017. Deadwood-rich managed forests provide insights into the old-forest association of wood-inhabiting fungi. Fungal Ecology 27: 155−167. http://dx.doi.org/10.1016/j.funeco.2016.09.006

Ryvarden L. & Melo I. 2014. Poroid fungi of Europe. Synopsis Fungorum 31: 1–455.

Sabatini FM, Burrascano S, Keeton WS, et al. 2018. Where are Europe’s last primary forests? Divers Distrib. 00:1–14. https://doi.org/10.1111/ddi.12778

Shah M, Coulson S (2019). Artportalen (Swedish Species Observation System). Version 92.144. ArtDatabanken. Occurrence dataset https://doi.org/10.15468/kllkyl accessed via GBIF.org on 2019-03-11.

Spirin V., Runnel K., Vlasák J., Miettinen O., Põldmaa K. 2015. Species diversity in the Antrodia crassa group (Polyporales, Basidiomycota). Fungal Biol 119: 1291–1310. https://doi.org/10.1016/j.funbio.2015.09.008

Stokland, J.N. & Larsson K. 2011. Legacies from natural forest dynamics: different effects of forest management on wood-inhabiting fungi in pine and spruce forests. Forest Ecology and Management 261(11): 1707–1721.

Vampola P. & Pouzar Z. 1992. Contribution to the knowledge of a rare resupinate polypore Amyloporia sitchensis. Česka Mykol. 46(3–4): 213–222.

Vlasák J. 2007. Poznámky k ekologii vzácného choroše pórnatky nahořklé (Amyloporia sitchensis) [Comments on the ecology of the rare resupinate polypore Amyloporia sitchensis]. Mykologické listy 99: 4–7. [in Czech with English summary]


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted