The major threats are predation by the introduced Viperine Snake (Natrix maura), and competition for space with Perez's Frog (Rana perezi). Development of tourism and human settlements, specifically the increased need for water resources (including damming and canalization of streams), is an additional threat. The threats are not likely to decrease, and so the current recovery programme needs to be continued more or less indefinitely. One isolated re-introduced population was impacted by an unidentified non-fungal disease in 2002 which killed some tadpoles. This disease did not recur in 2003 and 2004. Chytridiomycosis has been identified in the wild population, with the source of this chytrid infection traced to reintroduced captive-bred animals from Jersey Wildlife Preservation Trust, UK (Walker et al. 2008).
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