Western Chorus Frog


in action

Western Chorus Frog

Small frog, Big worries.

At only 3.7 cm in length, the Western Chorus Frog (Pseudacris triseriata) is unquestionably one of our smallest species of frog. Formerly, the species was common and was found throughout south-western portion of the province. Today, it is found in only a few isolated areas of the Montérégie and Outaouais regions. The marked decline seen in certain populations in these two regions was considered quite worrisome and led to the species being listed as vulnerable in Québec in the year 2000. It is likely that the species will be designated as threatened in the near future given the continued loss of habitat seen each year.

As a species that uses temporary ponds to breed, it is particularly sensitive to changes, fragmentation or destruction of its habitat. The filling and draining of wetlands due to urban sprawl are among the most important causes of habitat loss for the species. In the Montérégie region, it is estimated that the species occupies only 10% of the territory where it was once found. It is also estimated that 15% of the habitats identified in 2004 have since been destroyed. In the Outaouais region the situation is no better as 30% of ponds have disappeared in recent years.

Given these facts and the urgency of the situation, the Ecomuseum Zoo and the Biodôme de Montréal have joined forces to develop a captive breeding program for the species. The project aims to develop the method of rearing, hibernation and reproduction of the species in captivity.
In 2014, the Ecomuseum Zoo and the Biodôme de Montréal will join the University of Ottawa to test a hormone therapy, facilitating the reproduction under human care and the reintroduction of the species into natural habitats.

The Ecomuseum Zoo is proud to be associated with each of its partners, working actively in the protection of the Western Chorus Frog.