Seagulls could act as sentinels of the antibiotic pressure in the environment Gulls are one of the main wild birds that act as reservoirs of Campylobacter and Salmonella, two most relevant intestinal antibiotic-resistant bacteria causing gastroenteritis in humans. Therefore, according to an article published in the journal Science of the Total Environment seagulls could act as sentinels of the antibiotic pressure in the environment. The study was carried out by experts of the Faculty of Biology and the Biodiversity Research Institute (IRBio) of the University of Barcelona, and the Institute of Agrifood Research and Technology (IRTA). Resistant bacteria to antibiotics represent a serious problem for human health and other species since they can harden the treatment of bacterial infections. According to the experts, wildlife fauna is a reservoir of resistant and multiresistant strains of bacteria and in particular, some animals -for instance, birds- have a great ability to spread these around the environment with their local and migratory movements.