Tree Conservation Information Service
| Aspidosperma
polyneuron
Apocynaceae amargoroso, ibirá-ró-mí, palo rosa, peroba rosa Distribution Argentina (Misiones), Bolivia, Brazil (Bahia, Mato Grosso, Minas Gerais, Paraná, Rio Grande do Sul, Santa Catarina, São Paulo) Colombia, Paraguay, Peru Habitat A species of tropical, lowland to submontane moist forest. It occurs in various forest types in moderately humid areas from low to medium altitudes. It can be dominant in the understory of Araucaria forest. Population Status and Trends Peroba rosa is a popular timber tree which has suffered intense exploitation and habitat loss over the past few decades. The Brazilian populations are largely eroded (Americas Regional Workshop, 1996). Although the species was until recently one of the dominant components of certain areas in Paraguay, also occurring in pure stands, exploitable populations are now very hard to find and commercial sources are almost exclusively confined to Brazil (Atkin, 1998). Populations in Colombia are seriously threatened (Calderon, 1997), and in Argentina the species is scarce and confined to an area in the north of Misiones (Chebez, 1994) Threats Overexploitation, habitat conversion to pastureland and agriculture (FAO, 1986). Utilisation Peroba rosa is used primarily in civil construction for joinery, veneers and in the construction of ship decks, flooring, furniture and sleepers. (Flynn, 1994). Trade Peroba rosa is the most available hardwood in Brazil. (Flynn, 1994). 180m³ of Aspidosperma spp. was exported as sawnwood from Brazil in 1994 at an average price of US$420.00/m³ (ITTO, 1995). IUCN Conservation category EN A1acd+2cd according to the Americas Regional Workshop for the WCMC/SSC Conservation and sustainable management of trees project (WCMC, 1996). Conservation Measures Legislation exists in Colombia to prohibit the export of the species, except in the form of industrialised goods (Americas Regional Workshop, 1996). Forest Management and Silviculture Silvicultural trials have been carried out and in different sites tree heights at 12-13 years have ranged from 4.7 to 7.8m with DBH ranging from 5.6 to 9.7 cm. References Americas Regional Workshop. 1996. Discussions held at CATIE, Costa Rica, November 1996 at the Second Regional Workshop of the WCMC/SSC Conservation and Sustainable Management of Trees project. (Unpublished). Atkin, J.S. 1998. Comments on the tree species in trade in Paraguay. Calderon, E. (comp.). 1997. Lista de plantas Colombianas en peligro. July 1997 Version. Instituto de Investigacino de Recursos Biologicas Alexander von Humboldt. (unpublished). 14 pp. Chebez, Juan Carlos. 1994. Los que se van. Buenos Aires, Argentina: Albatros. 604pp. FAO Forestry Department. 1986. Databook on endangered tree and shrub species and their provenances. Rome: FAO. 524pp. Flynn, J.L. 1994. A guide to the useful woods of the world. King Philip Publishing Co, Maine, US. 382pp.ITTO. 1995. Elements for the annual review and assessment of the world tropical timber situation. Draft Document. The Nature Conservancy. 1996. Natural Heritage Central Database. (Status and distribution data on Latin American plants, developed in collaboration with Latin American Conservation Data Centers and Missouri Botanical Garden.). Varty, N. & D.L. Guadagnin. 1996. Information sources on the biology, conservation and trade of tree species in Brazil. Unpublished document prepared for the WCMC/SSC Conservation and Sustainable Management of Trees project. WCMC. 1996. Report of the Second Regional Workshop, held at CATIE, Turrialba, Costa Rica, 18-20 November 1996. Conservation and sustainable management of trees project. (unpublished).
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