Results 71 to 80 of about 1,099 (177)

Challenges and Advances Driving Studies on Aquatic Insects of the Order Coleoptera

open access: yesFreshwater Biology, Volume 71, Issue 7, July 2026.
ABSTRACT Aquatic beetles (Coleoptera) are known for their high taxonomic and ecological diversity and their sensitivity to environmental changes, making them key bioindicators in ecological assessments. However, numerous knowledge gaps persist globally.
Everton Cruz da Silva   +17 more
wiley   +1 more source

Novos registros de carrapatos (Acari: Ixodidae) infestando aves silvestres em um fragmento florestal no Acre, Amazônia Brasileira

open access: yesSemina: Ciências Agrárias, 2020
O objetivo desse estudo foi ampliar o conhecimento sobre o parasitismo de carrapatos em aves silvestres na Amazônia Ocidental e fornecer registros adicionais de espécies de aves parasitadas por carrapatos no Estado do Acre.
Vanessa Lima de Souza   +3 more
doaj   +1 more source

Climate Predicts Tree Dispersal Strategies Across Brazil's Ecosystems

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 7, July 2026.
ABSTRACT Aim We investigate the distribution of dispersal modes—endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and ...
Fernanda C. Souza   +126 more
wiley   +1 more source

Myxobiota of the Brazilian Atlantic Forest: species on oil palm tree (Elaeis guineensis, Arecaceae)

open access: yesRodriguésia
Elaeis guineensis Jacq. (Arecaceae), the oil palm tree, serves as a phorophyte for many different groups of organisms, someof whichhelp decompose organic matter comingfromthe organs of the tree itself or fromremainsof other plants retained in leaf ...
Clebson Firmino da Silva   +1 more
doaj   +1 more source

ESTIMATIVA DE BIOMASSA EM UMA FLORESTA TROPICAL NO MUNICÍPIO DE MAUÉS - AM, BRASIL

open access: yesRevista Brasileira de Cartografia, 2013
O sensoriamento remoto (SR), sistema de informação geográfica (SIG) e sistema de posicionamento global (GPS) são importantes ferramentas para as diversas etapas de inventários florestais, inclusive para as estimativas de biomassa. O objetivo deste trabalho foi consolidar uma metodologia para a espacialização ou mapeamento das variáveis biofísicas ...
Celes, Carlos Henrique   +3 more
openaire   +2 more sources

Foraging Ecology and Fisheries Interactions of Common Bottlenose Dolphins (Tursiops truncatus) Inferred From Strandings in Western Iberian Atlantic Waters

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT The common bottlenose dolphin (Tursiops truncatus) is a resident species along the Portuguese mainland coast, yet knowledge of its stranding patterns and feeding ecology is scarce. This study presents a comprehensive assessment of strandings (n = 264, from 1980 to 2019) and feeding ecology based on stomach content analysis (n = 43 from 1997 to
Ana Marçalo   +13 more
wiley   +1 more source

CARACTERIZAÇÃO ESPECTRAL DE PROPRIEDADES ÓPTICAS DE AEROSSÓIS EM REGIÃO DE FLORESTA TROPICAL

open access: yesNativa, 2018
Aerossóis atmosféricos desempenham um papel importante no equilíbrio de energia do sistema Terra-atmosfera. Medidas de aerossóis foram realizadas em área de floresta tropical utilizando fotômetro solar da rede global AERONET. Dados de 4 anos permitiram classificar as propriedades óticas dos aerossóis, definindo a climatologia para área de floresta ...
Menezes, Jorge Almeida de   +4 more
openaire   +3 more sources

Tree stem methane emissions are regulated by site‐level biogeochemistry over species identity in Amazon floodplain forests

open access: yesNew Phytologist, Volume 251, Issue 1, Page 179-190, July 2026.
Summary Tree stems in Amazonian floodplains emit substantial methane (CH4), yet controls on emission variability remain unclear. Emissions span orders of magnitude between várzea (nutrient‐rich) and igapó (nutrient‐poor) forests and among trees, suggesting controls beyond flooding.
Holly R. Blincow   +9 more
wiley   +1 more source

Variations in the abundance of three Parulidae species in the southern portion of the Brazilian Atlantic Forest, state of Paraná

open access: yesAnais da Academia Brasileira de Ciências, 2012
We evaluated the distribution of abundance of three species of warblers in the southern portion of the Brazilian Atlantic Forest (BAF): Tropical Parula (Parula pitiayumi), the Golden-Crowned Warbler (Basileuterus culicivorus) and the White-Rimmed Warbler
Cássius R. Santana   +2 more
doaj  

Influências Remotas Sobre a Amazônia e dela Sobre Outras Regiões: o Homem, a Flora e a Fauna [PDF]

open access: yesAnuário do Instituto de Geociências, 1999
A última e maior reserva florestal tropical do planeta que precisa ser conservada e explorada conscientemente, preservando o meio ambiente (desenvolvimento sustentável). Pois sua destruição alterará o clima da América do Sul, principalmente.
Julio Buchmann
doaj  

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