Two Oudemansiella from a forest fragment in Southwestern Amazonia

Variability of Carbon and Water Fluxes Following Climate Extremes over a Tropical Forest in Southwestern Amazonia

The carbon and water cycles for a southwestern Amazonian forest site were investigated using the longest time series of fluxes of CO2 and water vapor ever reported for this site. The period from 2004 to 2010 included two severe droughts (2005 and 2010) and a flooding year (2009). The effects of such climate extremes were detected in annual sums of fluxes as well as in other components of the ca...

Domestication of Peach Palm in Southwestern Amazonia

The peach palm (Bactris gasipaes Kunth) is the only Neotropical palm domesticated by Native Americans. Its place of origin as a crop (B. gasipaes var. gasipaes) has been debated for more than a century, with three hypotheses currently in discussion: southwestern Amazonia; northwestern South America; or multiple origins in the distribution of the wild relatives (B. gasipaes var. chichagui). The ...

Precipitation Variability over the Forest-to-Nonforest Transition in Southwestern Amazonia

Prior research has shown that deforestation in the southwestern Amazon enhances the formation of nonprecipitating shallow cumulus clouds, while deep cumulus convection was favored over forested land. The research presented here further investigates the trends of hydrometeors in the area by examining how precipitation frequency changes as a function of distance to the forest’s edge. Measurements...

“Purús Song”: Nationalization and Tribalization in Southwestern Amazonia

A new, riparian, species of Allobates Zimmermann and Zimmermann, 1988 (Anura: Aromobatidae) from southwestern Amazonia.

We describe Allobatesflaviventris sp. nov., a medium-sized (SVL 16.7-19.7 mm in males; 19.3-21.1 mm in females) aromobatid frog with Finger III not swollen in adult males from eastern state of Acre, Brazil. It inhabits open forests with bamboo, usually along small streams and rivers. it has golden-yellow belly and a unique advertisement call as a distinctive character. Notes on natural history ...