Background Microsatellite and mitochondrial markers are important tools for investigating natural populations, enabling the assessment of their diversity, genetic structure, kinship, parentage, and reproductive biology. Although the importance of such markers is widely recognized, their use in Neotropical mammals, especially marsupials, is still limited by the scarcity of species-specific loci characterized for extant species....

Optimizing maize–Brachiaria intercropping requires effective weed management with selective maize herbicides. This study evaluated the spray performance and efficacy of atrazine + nicosulfuron for weed management in maize–Brachiaria intercropping, focusing on how droplet classes and spray volumes affect maize growth and yield. The deposition experiment was conducted in a greenhouse in a completely randomized design with six re...

Anesthetics are widely employed in aquaculture and in research environments utilizing fish as experimental models, with the aim of mitigating stress and hypermotility during handling procedures. Among the most commonly used anesthetic agents, eugenol stands out for its suitability across multiple species, enabling safer handling and transportation while minimizing physiological impact on the animals. For the experimental proce...

Human T-lymphotropic virus type 1 (HTLV-1) infection is associated with a broad spectrum of neurological manifestations, including conditions that may precede the development of HTLV-1–associated myelopathy/tropical spastic paraparesis (HAM/TSP). This analytical, descriptive cross-sectional study aimed to estimate the prevalence of HTLV-1 infection and describe associated sociodemographic, socioeconomic, behavioral, and clinic...

Among the many factors that limit sugarcane crop yield, the precise supply of nutrients and water under drip irrigation systems can be the shortcut to higher yields in the field. This research aimed to evaluate the nutritional efficiency of fertigated sugarcane varieties under deficit irrigation strategies. The experiment was conducted in a rain‐out shelter with the soil type Oxisol Typic Ustox. The experimental design adopted...

Methylmercury (MeHg) contamination can cause damage to the salivary glands, which is associated with oxidative stress and glandular dysfunction. Açaí ( Euterpe oleracea Martius), a fruit rich in antioxidants, emerges as a natural alternative to mitigate the toxic effects of MeHg. This study aimed to evaluate whether clarified açaí juice exerts a protective effect on the major salivary glands of rats intoxicated with MeHg. Wist...

The search for safe and effective anaesthetic agents for aquaculture is essential to improve fish welfare and management practices. This study evaluated the anaesthetic efficacy of Origanum vulgare essential oil (OVEO) in juvenile tambaqui ( Colossoma macropomum ), an important Amazonian species. A total of 108 fish were exposed to immersion baths with increasing OVEO concentrations (19.04–57.12 mg L⁻ 1 ). Behavioral endpoints...

Under the current global biodiversity crisis, there is a need for automated and noninvasive monitoring techniques that can gather large amounts of data cost‐effectively at various ecological scales, from local to large spatial scales. These data can then be analyzed to inform stakeholders and decision‐makers. One such technique is passive acoustic monitoring, which is commonly coupled with automatic identification of animal sp...

This interdisciplinary work demonstrates the viability of coupling ocean models with in situ robotic sampling in a dynamic coastal region as a means to increase model skill and prediction. Model-driven exploration closes the sample-assimilate-​predict-direct loop within a virtuous cycle to refine prediction for a range of applications in a region characterized by harsh conditions, high variability, and diverse physical forcing...