Results 31 to 40 of about 306 (121)

Piper longiapiculatum (Piperaceae), a New Species From the Brazilian Amazon Piper longiapiculatum (Piperaceae), uma Nova Espécie da Amazônia Brasileira

Feddes Repertorium, Volume 137, Issue 3, September 2026.
ABSTRACT In order to address the many lacunae in Amazonian Piper taxonomy and geography, we performed a field expedition in the Serra do Divisor National Park (Acre state, Brazil), resulting in the discovery of a new species, Piper longiapiculatum, herein described and compared to morphologically similar taxa.
Gabriel Marcusso Marcusso, Leonardo Biral, Layon Oreste Demarchi, Charles Eugene Zartman, Elsie Franklin Guimarães   +4 more
wiley   +1 more source

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, Volume 42, Issue 7, Page 1604-1617, September 2026.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

Avaliação de capins sob pastejo em várzeas drenadas

Boletim de Indústria Animal, 2014
Os capins angola (Brachiaria mutica (Forsk) Stapt.) e tangola (Brachiaria mutica x Brachiaria arrecta Naper) foram testados, sob pastejo, em condições de várzea drenada na Estação Experimental de Zootecnia, em Pindamonhangaba, SP, empregando-se duas taxas de lotação, com animais do tipo mantiqueira, pastando em rodízio quatro pastos de angola e quatro ...
José Roberto Cosentino, Pedro Biondi, José Vicente Silveira Pedreira, Eliana Aparecida Schammass   +3 more
openaire   +8 more sources

Biogeographic Disconnect and Biotic Homogenization in the Heart of the Amazon: Dominance of Exotic Species in Urban Trees

Biotropica, Volume 58, Issue 5, September 2026.
Exotic taxa dominate the urban woody flora, with potentially invasive species posing a direct risk to adjacent primary forest remnants. Historical management has favored a simplified, cosmopolitan species pool over regional biodiversity. There is failure to implement local native‐priority mandates, offering concrete ecological targets for urban ...
Mariana Rabello Mesquita, Marcelo Gordo, Nadir Dantas Said, Cintia Cornelius, João Carlos Pena, Eduardo Martins Venticinque   +5 more
wiley   +1 more source

Avaliação de leguminosas forrageiras sob condições de várzea parcialmente drenada

Boletim de Indústria Animal, 2014
Este estudo foi conduzido no Instituto de Zootecnia, Nova Odessa, SP, para avaliar o desempenho de 10 leguminosas cultivadas sob condições de várzea parcialmente drenada. Foram avaliadas a germinação e desenvolvimento inicial das plantas, a cobertura do solo pela vegetação e a aceitação relativa das mesmas, sob pastejo.
José Vicente Silveira Pedreira, José Roberto Cosentino   +1 more
openaire   +8 more sources

Oro‐Facial Contact Behaviors in Wild White Bald‐Headed Uakaris (Cacajao calvus): First Documentation of Direct Facial Contact and Facial Investigation in Pitheciidae

Biotropica, Volume 58, Issue 5, September 2026.
We document the first instances of direct oro‐facial contact and facial investigation in wild Cacajao calvus. These rare observations expand the social repertoire of Pitheciidae, suggesting that close‐range tactile communication complements the visual signaling of their distinctive red faces.
Renann H. P. Dias da Silva, Matheus José Castro‐Sá, Adrian A. Barnett, Carlos Peres, Marcelo Gordo   +4 more
wiley   +1 more source

Avaliação preliminar de diversas gramíneas e leguminosas de inverno em Várzea do Paraíba SP

Boletim de Indústria Animal, 2014
O trabalho foi conduzido durante dois anos, na Estação Experimental de Zootecnia de Pindamonhangaba, SP, do Instituto de Zootecnia, em ensaios de parcelas num solo hidromórfico argilo-arenoso de várzea previamente drenada. Os tratamentos foram distribuídos em blocos ao acaso, com quatro repetições No primeiro ano (1983) foram estudadas as ...
José Roberto Cosentino, Joaquim Carlos Werner, Guilherme Paes Guaragna, Norberto Leite   +3 more
openaire   +7 more sources

New canopy legume species highlight liana gap sampling across Amazonian and Atlantic rain forests

TAXON, Volume 75, Issue 4, August 2026.
Abstract Lianas are a key component of the Neotropical flora, accounting for 10% of angiosperm richness and playing important ecological roles. However, the canopy preference of some species often leads to their underrepresentation in herbarium collections, thereby exacerbating Linnaean, Darwinian, and Wallacean shortfalls. The papilionoid legume genus
Andrés Fonseca‐Cortés, Cristiane Snak, Ruth Clark, Domingos Cardoso, Luciano Paganucci de Queiroz   +4 more
wiley   +1 more source

Amazonian Dark Earths fron Alto Solimões, Brazil: Physical and chemical properties, phosphorus forms and pedochronology [PDF]

Revista Brasileira de Ciência do Solo
Amazonian Dark Earths (ADEs) are archaeological soils with darkened anthropic horizons, fragments of charcoal ceramics, and enriched in P, Ca2+, Mg2+, Mn, Zn, and organic matter.
José Furtado de Miranda, Carlos Ernesto Gonçalves Reynaud Schaefer, Ronaldo de Almeida, Hedinaldo Narciso Lima, Agno Nonato Serrão Acioli   +4 more
doaj   +2 more sources

Plant‐Trait Syndromes and Environmental Filtering Drive Biomass Ecology in Resource‐Limited Forest Ecosystems

Ecology and Evolution, Volume 16, Issue 7, July 2026.
Aboveground biomass (AGB) in Pakistan's forests is primarily driven by functional dominance, with soil fertility playing a secondary but significant role, while climate effects vary across forest types. Mixed forests support the highest biomass and show the strongest influence of dominant traits, whereas climate constraints are more evident in ...
Shahab Ali, Shujaul Mulk Khan, Henrik Balslev, David P. Edwards   +3 more
wiley   +1 more source