| information about predators varies across an amazonian rain forest as a result of sentinel species distribution. | information about predation risk is of fundamental value in biological communities. because many prey species have shared predators, eavesdropping on other species' alarms is a widely recognized mechanism underlying the formation of mixed-species groups. however, information transfer may vary both across and within groups because some species provide higher-quality information about predators than others. we tested this phenomenon in amazonian understory mixed-species flocks of birds in which tw ... | 2019 | 31613671 |