• Proposed
  • Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Rubinoboletus rubinus (W.G. Sm.) Pilát & Dermek

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Scientific name
Rubinoboletus rubinus
Author
(W.G. Sm.) Pilát & Dermek
Common names
Рубиноболет рубиновый
rubínovec obyčajný
IUCN Specialist Group
Mushroom, Bracket and Puffball
Kingdom
Fungi
Phylum
Basidiomycota
Class
Agaricomycetes
Order
Boletales
Family
Boletaceae
Assessment status
Under Assessment
Proposed by
Tatyana Svetasheva
Assessors
Tatyana Svetasheva
Contributors
Ibai Olariaga Ibarguren, Giampaolo Simonini
Comments etc.
Martyn Ainsworth, Tor Erik Brandrud, Anders Dahlberg, Michael Krikorev, Vladimír Kunca, Kamil Kędra, Thomas Læssøe

Assessment Status Notes

It’s redlisted in 7 countries.
Criteria C2ai - En;  Evaluation based on small global population (<2500 individuals), habitat decline in area and quality and small number of individuals in each subpopulation. The fragmentation of functional individual can be low according to presence of only single fruitbody in each locality.

Taxonomic notes

Synonymy:
Boletus rubinus W.G. Sm. (1868)
Chalciporus rubinus (W.G. Sm.) Singer (1973)
Suillus rubinus (W.G. Sm.) Kuntze (1898)
Xerocomus rubinus (W.G. Sm.) A. Pearson (1946)


Why suggested for a Global Red List Assessment?

Rubinoboletus rubinus is a very rare species known in the most European countries only by a few finds (totally not more than 40 localities). It is confined mainly to those types of landscape (open oakeries of floodplains etc.)  which today noticeable suffer from human impact and decrease due to deforestation or transformation into parklands or pastures. It’s redlisted in 7 countries.
Criteria C2ai - En;  Evaluation based on small global population (<2500 individuals), habitat decline in area and quality and small number of individuals in each subpopulation. The fragmentation of functional individual can be low according to presence of only single fruitbody in each locality.


Geographic range

Europe (mainly South Europe), In Russia - European part almost up to Ural.


Population and Trends

About 40 localities are known: Italy - 2 localities, Netherlands - 1, UK- 21; Poland -1, Spain - 1; Germany - 3; Russia - 4 (Volgograd and Penza Oblasts, Mordovia Republic); It’s known also in Bulgaria, Czech and Slovakia as a redlisted species represented only by a few records. 
The species has not been found in some of these localities since 1990, therefore this species can be considered as declining. 

Distribution of R.rubinus was investigated in many countries, hence it’s hardly possible to have many unknown localities.  It is expected not more then 5 times - 40x5 = 200 localities.  Taking in account fragmentation - number of mature individuals is less then 200x2x5 =2000 (supposed low fragmentation)
Habitat loss :  the total area of oak forests in Russia decreased about 20 % from 1966 (1966 - 4,4 млн. га, 1998 - 3,5 млн. га. http://www.pandia.ru/text/77/485/2455.php)  Evaluation period 50 years = 3 generations (Dahlberg & Mueller, 2011)

Criteria C2ai - En;  Evaluation based on small global population (<2500 individuals), habitat decline in area and quality and small number of individuals in each subpopulation. The fragmentation of functional individual can be low according to presence of only single fruitbody in each locality.

 

Population Trend: Deteriorating


Habitat and Ecology

Symbiotic fungus, mycorrhizal with oaks (Quercus). It inhabits only open broadleaved forests with old oak trees, including floodplain oakeries, parklands of river valleys,  on rich soil often amongst short grass under isolated large trees. Usually it’s found only one-two sporocarps in each site.


Threats

Loss of habitats due to deforestation and change of management of parklands; habitats degradation due to intensive land use.


Conservation Actions

Conservation of known localities, monitoring of the state of habitats and populations. Organization of Important Fungal Areas with a high protected status.


Research needed

Search of new localities, clarifying of ecological preferences and threats; determination of the optimal ways of protection.

Population size, distribution & trendsLife history & ecologyThreatsActionsArea-based Management PlanPopulation trendsHabitat trends

Bibliography

Red Data Book of Penza region, 2013. Volume 1. Fungi, Lichens, Mosses, Vascular Plants. Second Edition /Edited by Ivanov A.I. - Penza, Penzian Pravda. 299 p. (in Russian).
Assyov, B. & Denchev, C.M. 2010. Conservation of larger basidiomycetes in Bulgaria: the case of Boletus. — Mycologia Balcanica 7: 37–40.
Red Data Book of Russian Federation (plants and fungi), 2008 / Edited by Yu.P.Trutnev et all., compailers R.V.Kamelin et all. Moscow: Association of scientific editions KMK, 855 p. (in Russian)
Muñoz, J.A. 2005. Boletus s. l. – In: Fungi Europaei. Vol. 2, 1–952. Edizioni Candusso, Alassio.
Pilát, A. & Dermek, A. 1974. Hribovité huby. Veda, Bratislava (in Czech).


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted