Auriporia aurulenta is a striking rare orange polypore restricted to coarse conifer logs in old-growth mountain forests. About 300 sites are known and the total number of sites globally is estimated to be less than 600. The global population is inferred to consist be less than 2500 mature individuals. Typically, it is recorded at single logs within site. Its habitat is subjected to an ongoing declining caused mainly by logging of old-growth forests. Locally, exploitation of areas for recreational use may be a threat. Changing climate with warmer temperatures, drought and increased frequencies of forest fires is considered as an significant future threat to the habitat of A. aurulenta. Overall habitat loss and subsequent population decline is ongoing, inferred to be about 30% over 50 years (three fungal generations) and projected to continue. On this basis, small population and ongoing decline, A.aurulenta is assessed as Endangered C2a(i)).

Auriporia aurulenta A. David, Tortič & Jelić is one of the three species considered currently in the genus Auriporia Ryvarden (Polyporales, Agaricomycetes, Basidiomycota). Two other species are A. aurea (Peck) Ryvarden, the type of the genus Auriporia, and A. brasilica G. Coelho.  Based on ITS data, the one record of A. aurulenta, from the US is conspecific, but the habitat is so different that further study with additional genetic markers is warranted.

Increasing anthropogenic impacts on mountain forest ecosystems, including recreational pressure, logging, and the removal of dead wood, are leading to the destruction of habitats for Auriporia aurulenta, a species with strict requirements for large coniferous dead wood in mountain habitats.

Auriporia aurulenta is a rare fungus known from several countries in Europe (Austria, Croatia, Czech Republic, France, Germany, Poland, Russia (European part), Serbia, Slovakia, Slovenia, Spain, Switzerland, Ukraine). There are also some records from Japan and Eastern Russia.  Rare reports from the United States and from Brazil are not included in this assessment as the described habitats indicate that these may concern different species.

Auriporia aurulenta is a distinct eye-catching orange polypore confined to coarse coniferous logs in mountainous forests. Such dead wood habitats have been subjected for fungal surveys since long why the number of unknown sites likely to be quite low. It is confined to mountain habitats, and appears everywhere to have been recorded as single specimens only. In some areas it might rarely show up in new localities, e.g. in France (Rivoire 2020). The number of known localities is 300 (GBIF 2026) and the total number of localities is estimated to be less less than 600. Assuming 1-2 functional individuals corresponding to 2-4 mature individuals at each site gives an estimated total population size of not exceeding 2500 mature individuals (cf. Dahlberg & Mueller, 2011).

Its main habitat are mountainous coniferous forests, e.g. spruce forests. Old Norway spruce (Picea abies) forests in the coniferous–broadleaved zone of the East European plain being in decline, driven by rising temperatures and droughts. Re-surveys of intact stands on the Smolensk–Moscow Upland after 40 years show canopy disturbances and changes in understory composition (1980:s compared to 2024-2025).) A shift towards warmer, nemoral conditions, with increased thermophilic species is revealed. Spruce is projected to decline in dominance in mixed stands over the next 40–60 years (Chernenkova et al. 2025, Main-Knorn et al. 2013, Shvidenko & Nilsson 2006).

Additionally, due to increasing human impacts on mountain forest ecosystems, e.g. logging, removal of dead wood, recreational pressure, and increasing forest fires across its distribution range, the old growth forest with coarse dead wood of appropriate quality for A. aurulenta has been in decline and continues to decline. The habitat decline is inferred to be about of 30 % in 50 years (three generations, see Dahlberg and Mueller 2011) and inferred to continue to decline. The population size is inferred to undergo a similar decline, approaching 30%.

Auriporia aurulenta is a lignicolous saprotrophic polypore forming and eye-catching orange 10-20 cm wide thin fruiting bodies spread out as crusts on large-size fallen trunks of conifer wood, mainly spruce and pine, but also other conifers and rarely Fagus. It primarily occurs in mountainous old-growth coniferous forests and mixed coniferous-broadleaved forests.

Auriporia aurulenta is mainly threatened by logging and the conversion of old-growth coniferous forests to managed forest where appropriate type of habitat and dead wood not is formed (Flintoff 2013). Locally, habitats of A. aurulenta may also be also negatively affected by recreational development and other habitat alterations. The habitat of A. aurulenta is likely to be negatively affect by changing climate with warmer temperatures, drought and increased frequencies of forest fires.

Site and habitat protection with appropriate management is needed.

Research into the distribution and habitat requirement of the species throughout its range is needed. Based on ITS data, the one record of this species from the US is conspecific, but the habitat is so different that further study with additional genetic markers is warranted.

There is no use and trade known.

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