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Body composition analysis is relevant to characterize the nutritional requirements and finishing phase of fish. The aim of this study was to investigate the relationship between ichthyometric (weight, total and standard ...

Light and water are important factors that may limit the growth and development of higher plants. The aim of this study was to evaluate photosynthetic parameters and growth in seedlings of Bertholletia excelsa and Carapa...

The genus Peristethium, characterized by determinate inflorescences protected by deciduous bracts, occurs in the northwest of South America, as well as Costa Rica and Panama. The main objective of this paper was to trans...

Studies to select one or more species of coverage plants adapted to Amazonian soil and climate conditions of the Amazon are a promising strategy for the improvement of environmental quality, establishing no-till agricult...

Predation and alteration of microhabitats may represent high risk for nesting of Amazonian turtles. This study aimed at investigating the nesting and body parameters of neonates of Podocnemis unifilis in the Araguari Riv...

Sport fishing for peacock bass Cichla spp. in the Brazilian Amazon has increased in popularity and attracts anglers who generate significant economic benefits in rural regions. The sustainability of this fishery is partl...

Aging with quality of life does not occur equally among the racial groups of Brazilian elderly, and few studies have analyzed this issue in the states of the Brazilian Legal Amazon. The objective of this study was to inv...

Lakes play an important role in biogeochemical, ecological and hydrological processes in the river-floodplain system. The aim of this study was to evaluate the dynamics of the limnological conditions of Catalão Lake, an...

Coupled carbon/climate models are predicting changes in Amazon carbon and water cycles for the near future, with conversion of forest into savanna-like vegetation. However, empirical data to support these models are stil...

Observational and experimental studies have shown that increased concealment of bird nests reduces nest predation rates. The objective of the present study was to evaluate differences in predation rates between two exper...

A retirada ou a substituição da vegetação ripária provoca uma alteração no ambiente físico, no fluxo sazonal e na qualidade química da água. Essas modificações podem causar a diminuição da riqueza pela exti...

O afeto pode influenciar as percepções de riscos e benefícios à saúde e o comportamento de consumidores. O açaí é amplamente consumido na região Amazônica. Surtos da doença de Chagas aguda supostamente relacio...

O co-manejo dos recursos pesqueiros que vem sendo desenvolvido pelos ribeirinhos da Amazônia têm a preocupação de assegurar ambientes adequados para a conservação dos estoques. Esta estratégia de co-manejo é base...

The mangrove crab (Ucides cordatus) is a valuable fishery resource, overfished along the Brazilian coast. This study aimed to obtain bioecological data on this crab along the coast of the State of Amapá. Six bimonthly s...

O Centro de Endemismo Belém (CEB) -região biogeográfica localizada entre os rios Tocantins e Pindaré- é a área mais desmatada da Amazônia. Estudar a biota do solo dos remanescentes florestais e de áreas em regene...

Floral mechanisms that ensure seed production via autogamy are more likely to occur in species growing in environments where pollination is scarce. Amasonia obovata was studied in the State of Mato Grosso-Brazil, from 20...

Piper L. (Piperaceae) é monofilético, com espécies de difícil distinção taxonômica, sendo necessários ferramentas que auxiliem a identificação interespecífica. Os objetivos do trabalho foram descrever os macro...

The tropical tree Schizolobium amazonicum is native from the Amazonian forest, naturally occurring in Brazil, Peru and Colombia. This work aimed to study the veneer yield made from this species. For this purpose, 50 logs...

As savanas da região costeira da bacia amazônica estão situadas no complexo contato entre a floresta e a costa atlântica. Nestas formações as Poaceae se destacam como um dos grupos vegetais mais importantes. O pres...

Densidade da madeira (DM) é uma variável importante para estimativas de estoques de carbono arbóreo em ecossistemas terrestres. Este tema é pobremente investigado em áreas de savana da Amazônia brasileira. O objeti...