Habitat and Ecology
Habitat and Ecology
S. bracteata Systems
inhabits campo, swampy areas, palm savanna and cerrado.
IUCN Red List Assessment
Red List Category Year Assessed
Least Concern Red List Criteria Version
Groom, A. Reviewer/s
Hilton-Taylor, C. Contributor/s Justification
has a large geographical distribution with an estimated EOO of 1,160,000 kmÂ² as based on vouchered specimen collections. The taxon's habitat is known to have been drastically modified by human activity, particularly in the Distrito Federal, Brazil. The taxon is known to occur within the protected areas network; however, the area has a fairly poor coverage of internationally recognized protected areas. There is no data available relating to the population size of this taxon but it is likely that the population has declined over the last 30-40 years. At present this taxon does not qualify for a threatened category, however, the population of this taxon should be monitored to ensure that it does not fall into a threatened category in the near future. A rating of Least Concern has been assigned at present.
There is currently no data available relating to the population size of S. bracteata
The Brazillian cerrado in which the taxon is known to occur has been severely modified by human activity. The construction of Brasilia and associated highways has lead to habitat loss and degradation (Ratter et al
. 1997). The relocation of the capital city and the new highways have opened the area up for further development. Large-scale plantations of soyabeans, corn and rice as well as managed pasture land have lead to great losses in natural vegetation over the last 30-40 years (Klink and Machado 2005). The resettlement of the Brazilian capital to this region has lead to a major increase in the population. It is not known as yet to what extent the population of S. bracteata
has been affected by the decline in natural habitat.
is known to occur within a number of protected areas, however, the coverage of protected areas within the taxon's range is fairly limited. Seeds have yet to be collected and stored as an ex situ