In addition, we compared the avifauna of WSV with that found in savanna patches, another type of Amazonian open vegetation. Based on published species inventories and our own field data we compile a checklist of bird species recorded in WSV. Associated with this vegetation is bird assemblage that has not yet been fully characterized. White-sand vegetation (WSV) is a rare vegetation type in the Amazon basin that grows in nutrient impoverished sandy soils that occur as patches of variable size. © 2017, Sociedade Brasileira de Ornitologia. These bird records illustrates how biological inventories and long-term monitoring are complementary strategies for a better understand of distribution and dynamics of the Amazon avifauna. In addition, records of species previously not reported for Amazonas state reinforce the relevance of inventories in poorly sampled regions. Our records suggest recent colonization of central Amazon by some species, likely favored by the increasing environmental degradation in the region. Hydropsalis roraimae, Myrmeciza longipes). Vanellus chilensis, Elaenia flavogaster), and species apparently reported for the first time for the Amazonas state, Brazil (e.g.
Crypturelus duidae, Ammonastes pelzelni, Cyanocorax heilprini), species common in other biomes but rare in the Amazon (e.g. We present information for 35 selected species, including birds rarely observed in nature (e.g. Here we describe notable bird species records in areas with difficult access, sites monitored from long-term and human-impacted regions in the central and northwestern portions of the Amazon Basin. We suggest that the large extension of white sand campinas and igapo forests at the southern portion of Serra do Araca should be also preserved in order to improve the representation of the rich natural heritage of the region.įield records are critical to understand the bird species distribution in ecological and evolutionary contexts, especially in regions with high species diversity such as the Amazon Basin. The Serra do Araca State Park officially protects montane forests, terra firme forests and tepuis. Additionally, we recorded endemic and rare birds, highlighting the value of the region for conservation. Rare landscapes in the Brazilian Amazon are found in the Serra do Araca region. Additionally, species whose distributions are restricted to three areas of endemism for Amazonian birds (Imeri, Guiana and Pantepui) were recorded in the region. The avifauna of the Araca region has a mixed biogeographic composition, with species typical of both margins of the Rio Negro occurring sympatrically. Qualitative estimates suggest that approximately 580 bird species occur in the region. A large proportion of them (61%) were recorded in a single vegetation type. We recorded 416 bird taxa in 69 families through captures with mist nets, tape recording of bird voices, and collection of voucher specimens. The region encompasses a high diversity of vegetation types, including white sand forests and campinas, terra firme and flooded forests, montane forests and tepuis.
We inventoried the birds from Serra do Araca region, state of Amazonas.
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