Lost frog

Lost frogs, also called translocated frogs, frogs which have been relocated, usually accidentally, outside of their original distribution. In Australia a large number of frogs (up to 10,000 a year) transported accidentally while hiding in fruit produce, flowers and building and landscape supplies. Most of the lost frogs each year are moved from Northern Australia to the larger cities in the south. The majority of the lost frogs turn up in fruit shops and markets. These frogs are often released into the surrounding areas. The release of lost frogs into areas far from their original habitat can have devastating effects on the released frog or the local frog populations. As lost frogs often end up moving from tropical to cooler areas they often cannot adapt fast enough to the new climate, and due to the stress of travelling hundreds of kilometres, often suffer injuries and are likely to die. Lost frogs are also often responsible for the spread of disease. When a frog suffering from a disease is released into an area where the disease is not present, it can have severe effects on the local frog populations. The fast spread of the chytrid fungus around Australia was likely to have been assisted by the introduction of lost frogs into areas where the disease was absent.

To prevent the release of lost frogs, many groups in Australia's major cities have set up lost frog rescue services. The aim of such programs is to collect the lost frogs from fruit shops or landscaping suppliers and quarantine them for 2–3 months in order to make sure it is not a carrier of exotic diseases.

Quarantine is extremely important in the management of lost frogs. It involves holding the frog separate from others in an essentially bare container, with nothing more than a water dish, a hiding place and food. The frogs must be checked regularly for any evidence of disease and to monitor injury. Once the quarantine period is over the frog still cannot be released into the wild, because it is extremely difficult to track down the exact location where the frog originally came from. Most lost frogs are then sold to people willing to look after them or who want a frog as a pet. The Hygiene Protocol for Control of Disease in Frogs, should be followed when dealing with lost frogs, it was written by the National Parks and Wildlife Service and is recognized as one of the best guides for prevent the spread of the amphibian chytrid fungus.