Results 101 to 110 of about 5,931 (210)

Recuperação de macrovestígios em sítios arqueológicos na Amazônia: nova proposta metodológica para estudos arqueobotânicos

open access: yesBoletim do Museu Paraense Emílio Goeldi. Ciências Humanas
A recuperação de macrovestígios vegetais para análises arqueobotânicas tem demandado a adaptação da metodologia empregada aos diferentes tipos de ambientes encontrados nos sítios arqueológicos ao redor do mundo.
Francini Medeiros da Silva   +4 more
doaj   +1 more source

An airborne regional carbon balance for central Amazonia

open access: yes, 2016
Peer ...
Lloyd, J   +7 more
openaire   +1 more source

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi   +10 more
wiley   +1 more source

COSMOLOGIAS AFROINDÍGENAS NA AMAZÔNIA MARAJOARA

open access: yesProjeto História, 2013
Dialogando com historiografias dos contatos indígenas e africanos na Amazônia, imagens de inscrição da arte nativa em cerâmica marajoara, cachimbos, altar barroco e narrativas literárias, que reconstituem marcas dos intercâmbios dessas culturas na ...
Agenor Sarraf Pacheco
doaj  

Genetic analyses and dispersal patterns unveil the Amazonian origin of guava domestication

open access: yesScientific Reports
Guava (Psidium guajava L.) is a semi-domesticated fruit tree of moderate importance in the Neotropics, utilized for millennia due to its nutritional and medicinal benefits, but its origin of domestication remains unknown.
Edna Arévalo-Marín   +8 more
doaj   +1 more source

Mapping of planation surfaces in the north-central Amazonia

open access: yesRevista Brasileira de Geomorfologia
This study aims to identify planation surfaces and their dissected reliefs in the Amazon, starting from the highlands of the border between Brazil, Venezuela and Guiana and ending near the axis of the Amazon River. Its connection with associated surface formations (regoliths) was also evaluated.
José Roberto Mantovani   +1 more
openaire   +2 more sources

The biogeography of the Amazonian tree flora

open access: yesCommunications Biology
We describe the geographical variation in tree species composition across Amazonian forests and show how environmental conditions are associated with species turnover.
Bruno Garcia Luize   +224 more
doaj   +1 more source

Depositional and stratigraphic evolution of a Permian megalake system: Implications for seiche‐influenced models

open access: yesThe Depositional Record, Volume 12, Issue 2, April 2026.
During the Late Permian, the rise of the Gondwanides Belt trapped marine waters, giving birth to a vast megalake. This lake shifted between overfilled, balanced‐fill and underfilled stages that are recorded by high‐frequency accommodation changes, while meteorological seiches shaped the sedimentary dynamic and produced heterolithic beds.
B. Christofoletti   +6 more
wiley   +1 more source

High‐Resolution Digital Terrain Model and Land‐Surface Parameters of São Sebastião and Ilhabela, Southeastern Brazil

open access: yesGeoscience Data Journal, Volume 13, Issue 2, April 2026.
The first openly accessible 2 m‐resolution lidar‐based DTM and an extensive set of land‐surface parameters (LSPs) for the region of São Sebastião and Ilhabela, southeastern Brazil, reveal geomorphological features previously indiscernible, including past landslide deposits, drainage captures and structural lineaments.
Rebeca Durço Coelho   +3 more
wiley   +1 more source

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