The pygmy ( Kogia breviceps ) and dwarf ( Kogia sima ) sperm whales are cryptic cetaceans characterized by inconspicuous surfacing behavior, small group sizes, and deep‐diving habits, making visual detection particularly challenging. Here, we present the first broad‐scale passive acoustic monitoring (PAM) assessment of Kogia spp. occurrence along the Brazilian coast, spanning both the Equatorial Atlantic Ocean (EAO) and Southw...

Expanding integrative cytogenetic and molecular analyses is essential for understanding the evolutionary dynamics of chromosome number variation in fishes. This study presents the first cytogenetic characterization of Hypostomus sertanejo , an endemic species native to the semi-arid Jaguaribe River basin in Northeastern Brazil. Cytogenetic analysis revealed a diploid number of 2n = 52, which is the lowest documented for the ge...

Water quality assessment is critical for determining the suitability of water resources for human consumption. In Santa Marta, northern Colombia, limited access to potable water and sewage systems, along with poor treatment infrastructure, poses a significant risk to both urban and rural communities. In some areas, untreated water is sourced directly from rivers or cisterns. Despite being a public health concern, molecular sur...

Background Urban greenspaces have the potential to mitigate urban carbon footprints by storing soil organic carbon (SOC). Different management and plant communities associated with different types of urban greenspaces may hold contrasting SOC, as well as different proportions of particulate (POC) and mineral-associated organic carbon (MAOC). In addition, management could outweigh the effects of climate or soil properties as dr...

Graft success depends on coordinated vascular tissue regeneration to restore scion growth. Reactive oxygen species (ROS), particularly hydrogen peroxide (H₂O₂), are involved in wound signalling, yet their role in controlling intergeneric graft compatibility remains unclear. This study evaluated early growth, redox metabolism and vascular reconnection in intergeneric grafts between quince ( Cydonia oblonga ) and pear ( Pyrus sp...

Understanding how fruit traits capture provenance structure is essential for traceability and the effective use of native fruit trees in conservation and pre-breeding. We assessed 30 mother trees of Spondias tuberosa (umbuzeiro) from three provenances in Sergipe, Brazil; due to asynchronous fruiting and field-access constraints, ripe fruits were obtained for 23 trees within the sampling window. Basic shape descriptors were com...

Legumes constitute one of the largest and most important families of flowering plants, comprising 650 to 750 genera and 18,000 to 19,000 species including herbs, climbers, shrubs, and trees. Among the legumes, many important crop plants such as soybeans, beans, chickpeas, peas and alfalfa, provide valuable compounds for the diet of many people worldwide. However, nowadays, due to overexploitation, deforestation, and pollution,...