- Scientific name
- Amanita fuligineodisca
- Author
- Tulloss, Ovrebo & Halling
- Common names
-
- IUCN Specialist Group
Mushroom, Bracket and Puffball
- Kingdom
- Fungi
- Phylum
- Basidiomycota
- Class
- Agaricomycetes
- Order
- Agaricales
- Family
- Amanitaceae
- Assessment status
-
Published
- Assessment date
- 2020-04-03
- IUCN Red List Category
-
VU
- IUCN Red List Criteria
-
A4ce
- Assessors
- Vargas-Estupiñan, N., Calle, A., Drechsler-Santos, E.R., Kossmann, T., da Cunha, K.M., Sandoval-Leiva, P., Torres, D. & Vasco-Palacios, A.M.
- Reviewers
- Mueller, G.M.
Assessment Notes
Justification
Amanita fuligineodisca is a mycorrhizal mushroom that can be found in montane forests from Mexico into Colombia associated with species of
Quercus and
Pinus. There is no direct information that the population has declined, but a significant decline is inferred due to extensive past and ongoing habitat loss and decline in habitat quality. While broadly distributed, Central American montane Pine and
Quercus dominated forests are under threat throughout much of their range due to land use changes, including timber harvest, conversion to pine and other non-native tree plantations, agriculture, and expansion of towns and cities. Further pressure and population reductions are expected to continue. Additionally, there is evidence of replacement of native mycorrhizal fungi on the roots of
Quercus by exotic species, including
Amanita muscaria, that were introduced with pines. As
A. fuligineodisca is an obligate mycorrhizal fungus, it is directly impacted by a decline in its hosts. Due to past significant loss of its hosts and projected continued loss, the estimated past and future decline for the population of
A. fuligineodisca is projected to be between 30-35% over three generations, making the species Vulnerable.
Taxonomic notes
The ectomycorrhizal species
Amanita fuligineodisca was described originally by Tulloss
et al. (1992) associated with Quercus species.
A. fuligineodisca belongs to the section Vaginatae (Subgenus
Amanita) close to
Amanita fulva. They differ by the darker pileus disc and a lower angle of split of the inflated cells in the hymenophoral trama in
A. fuligineodisca (Tulloss
et al. 1992).
Geographic range
Amanita fuligineodisca has been documented from Mexico, Honduras, Costa Rica and Colombia with herbarium records. It likely occurs throughout Central America associated with
Quercus,
Pinus, and possibly other ectomycorrhizal hosts, but there are no reports from other countries.
Population and Trends
The species has been documented with herbarium records from Mexico, Honduras, Costa Rica and Colombia. It likely occurs throughout Central America associated with Quercus, Pinus and other hosts, but there are no reports from other countries. It is relatively common in Costa Rica and Colombia. In Colombia there are many specimens stored in the herbarium HUA, Universidad de Antioquia, collected from the municipalities of Santa Rosa de Osos, Belmira, La Union and Medellín (department of Antioquia). In the department of Tolima there are specimen records from the municipality of Murillo. Specimens are also stored in the ANDES_F collection, with material from the municipalities of El Peñon and vereda San José de la Montaña (department of Santander), the municipality of San Antonio del Tequendama (department of Cundinamarca) and the municipalities of Arcabuco, Gachantiva and Villa de Leyva (department of Boyacá). In Mexico it is known from Chiapas. In Costa Rica it has been reported throughout much of the Cordillera Talamanca.
There is no direct information that the population has declined, but a significant decline is inferred due to extensive past and ongoing habitat loss and decline in habitat quality. While broadly distributed, Central American montane Pine and Quercus dominated forests are under threat throughout much of their range due to land use changes, including timber harvest, conversion to pine and other non-native tree plantations, agriculture, and expansion of towns and cities. Further pressure and population reductions are expected to continue. Additionally, there is evidence of replacement of native mycorrhizal fungi on the roots of Quercus by exotic species, including Amanita muscaria, that were introduced with pines (Vargas et al. 2019). There has been a nearly 42% loss of Quercus humboldtii populations in Colombia, and the tree has been nationally listed there as Vulnerable (VU A2cd) there (Cardenas and Salinas 2007). Deforestation in Colombia has increased in recent years and is anticipated to continue into the future. In Chiapas, Mexico, 50% of the montane forests were lost between 1975-2000 (Cayuela et al. 2006). Based on data from the Global Forest Watch Report (2020) there was forest loss of 18% for Guatemala and Nicaragua and 7.5% for El Salvador in the years 2001-2018. There is less data available to predict the decline in Costa Rica. Parts of the Talamancas are protected in National parks, but other areas are privately held, and there is limited logging ongoing as well as commercial and housing developments. As A. fuligineodisca is an obligate mycorrhizal fungus, it is directly impacted by a decline in its hosts. Due to past significant loss of its hosts and projected continued loss, the estimated ongoing decline for the population of A. fuligineodisca is projected to be between 30-35% over three generations (50 years; per Dahlberg and Mueller 2011).
Population Trend: decreasing
Habitat and Ecology
Amanita fuligineodisca is an ectomycorrhizal species associated with montane
Quercus and/or
Pinus throughout much of Central America and into Colombia.
Threats
While broadly distributed, Central American montane Pine and
Quercus dominated forests are under threat throughout much of its range due to land use changes, including timber harvest, conversion to pine and other non-native tree plantations, and expansion of towns and cities. As
Amanita fuligineodisca is an obligate mycorrhizal fungus, it is directly impacted by a decline in its hosts. Additionally, there is evidence of replacement of native mycorrhizal fungi on the roots of
Quercus by exotic species, including
Amanita muscaria, that were introduced with pines (Vargas
et al. 2019). Due to a policy aimed at conserving remaining natural areas, there is a lower threat level for the species in Costa Rica (MINAE
et al. 2018).
Conservation Actions
Using effective strategies could prevent additional introductions of invasive fungi and additional host shifts, among them exotic tree species should be planted apart from native forests to limit potential dispersal to native forests. It would also be useful to focus on developing local inocula, rather than using inocula of introduced fungi (Dickie
et al. 2016, Vargas
et al. 2019). Moreover, encouraging public awareness on the importance of recognising and reporting early detection of invasive species might help avoiding their spread and the maintenance of native fungal populations. Research is needed to evaluate population trends and further document distribution of native forest with invasive fungal species.
Use and Trade
The species is not eaten or used.
Source and Citation
Vargas-Estupiñan, N., Calle, A., Drechsler-Santos, E.R., Kossmann, T., da Cunha, K.M., Sandoval-Leiva, P., Torres, D. & Vasco-Palacios, A.M. 2020. Amanita fuligineodisca. The IUCN Red List of Threatened Species 2020: e.T172678109A179541167.
https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T172678109A179541167.en .Accessed on 6 February 2025