Citizen Science App Documents Spread of Eastern Dwarf Tree Frog Beyond Native Habitat

Research using the Australian Museum's FrogID app has documented the Eastern Dwarf Tree Frog (Litoria fallax) establishing populations far outside its native eastern Australian range. Between late 2017 and mid-2022, nearly 6,000 participants submitted approximately 50,000 recordings of this species, with 500 records coming from non-native areas. New populations have been confirmed in Melbourne, northern Victoria, Canberra, Griffith, Wagga Wagga, and Mirboo North. The frog's small size, tendency to shelter in vegetation, and tolerance for urban environments likely facilitate its spread through horticultural transport. This expansion raises ecological concerns about competition with local frog species, including endangered ones like Sloane's Froglet.