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ABSTRACT The objective of this study was to determine the production cost of tambaqui (Colossoma macropomum) and the hybrids tambatinga (female tambaqui x male pirapitinga, Piaractus brachypomus) and tambacu (female tamb...

ABSTRACT This study evaluated the effects of organic diets formulated with Amazonian by-products on the productive parameters and health of juvenile tambaqui (Colossoma macropomum). Four experimental diets were tested: C...

ABSTRACT Amazonian várzea floodplains (approximately 450,000 km²) are dynamic ecosystems where tree species must adapt to seasonal flooding. In this context, germination patterns and the type and composition of seed re...

ABSTRACT Feed restriction can be used as a management strategy to increase feed efficiency through compensatory growth (a higher growth rate after a period of restricted feeding). However, there is still a lack of inform...

ABSTRACT White-sand forests are unique ecosystems with high levels of biological specificity. Despite their uniqueness, these ecosystems have significant knowledge gaps in Colombia regarding the associated vertebrate com...

ABSTRACT Endozoochory by lowland tapirs (Tapirus terrestris) is regarded as a key seed dispersal mechanism in tropical forests and thus potentially useful for ecological restoration. Although previous studies attested th...

ABSTRACT In the Amazon, the rapid and disorderly occupation of large urban centers resulted in severe degradation of small rivers and streams, resulting in the reduction in abundance of native fish species. This study ai...

ABSTRACT Here, we report the first documented record of the Slender-billed Xenops, Xenops tenuirostris Pelzeln, 1859 in the Belém Region of Endemism. A Slender-billed Xenops was collected in March 2024 on the right bank...

ABSTRACT This study presents the second record of Metania kiliani (Porifera: Metaniidae) three decades after its description in 1992. The sponge was found on a herbarium specimen of the terrestrial fern Actinostachys pen...

ABSTRACT Interactions among organisms are important in ecosystem functioning and relevant for the management and conservation of species. Here we report the first record of a potential ant-hemiptera-plant mutualism on Lo...

ABSTRACT Penicillium Link is a widely known genus of ascomycetes, with a worldwide distribution, mainly known for its use in the food industry and production of mycotoxins. Considering the importance of culture collectio...

ABSTRACT While lichens are vital for ecosystem processes and serve as useful bioindicators, lichen diversity remains understudied, particularly in southern Ecuador. Here, we report the first inventory of corticolous (on ...

ABSTRACT We recorded aggregations of frugivorous bats swooping down to drink from pools formed by kitchen drains in two locations in western Amazonia. Videos and photographs show at least two species and three genera of ...

ABSTRACT Respiratory infections are considered the leading cause of mortality among communicable diseases in indigenous populations, becoming a public health issue. This case study was conducted in Amaturá municipality ...