Name:
Central Amazon Savanna Macrogroup
Reference:
NatureServe Biotics 2019
Description:
The savannas in this macrogroup represent those distributed in the south-central Amazon Basin in Brazil on hilly and rocky topographies and substrates transitional towards the northern distributional range of the Cerrado biome, where the Brazilian Shield meets the Amazonian plains. It also includes scattered, non-flooded savannas growing in the central Amazon region of Brazil. The common element is the presence of gravel-like soils from laterite outcrops, though they combine with different substrates (sand, clay, others.) The ones on flat terrain occurring in relative proximity to varzea forest might seasonally have access to the water table. These savannas have floristic affinities with the Cerrado (<i>Curatella americana, Anacardium microcarpum, Salvertia convallariodora, Hancornia speciosa, Qualea grandiflora, Byrsonima crassifolia, Byrsonima verbasifolia, Antonia ovata, Trachypogon</i> spp., <i>Leptocoryphium lanatum, Syagrus petraea, Caryocar brasiliense, Dypterix alata, Bowdichia virgilioides, Qualea parviflora, Pterodon emarginatus, Protium aracouchini</i>), but in this case the occurrences are surrounded by Amazon forests. The macrogroup also includes savannas with a significant presence of sand in the soil, which are common in the proximity to the Amazon estuary, on the topographic uplands but surrounded by herbaceous marshes; common species in this case are <i>Paratheria prostrata</i> and <i>Curatella americana</i>.
Accession Code:
urn:lsid:vegbank.org:commConcept:40673-{3149A0DD-10A6-4496-A495-0E8B50354921}
Plot-observations of this Community Concept:
0
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