Why do some tree frogs lay eggs in water held by bromeliad plants?

Some tree frogs of the family Hylidae lay their eggs in water held by epiphytic bromeliads as part of an evolutionary trend to breed away from traditional aquatic environments like ponds and streams.1

By utilizing these water-filled leaf axils high in trees, these frogs provide a specialized nursery for their offspring. These pools serve as relatively stable, discrete environments where tadpoles can develop in small quantities of water, safe from the predators and competition often found in larger, ground-level water bodies. While some tadpoles in these pools feed on aquatic insect larvae, such as mosquitoes, others may rely on different food sources, including the eggs of other frogs.12