About Ptychadena mascareniensis (Duméril & Bibron, 1841)
Ptychadena mascareniensis (Duméril & Bibron, 1841), commonly called the Mascarene grass frog or Mascarene ridged frog, is a frog species that belongs to the family Ptychadenidae. It can be found in sub-Saharan Africa, Madagascar, and Mauritius. Its natural habitats cover a wide range: subtropical or tropical dry forest, subtropical or tropical moist lowland forest, subtropical or tropical swamps, subtropical or tropical moist montane forest, dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, Mediterranean-type shrubby vegetation, subtropical or tropical dry lowland grassland, subtropical or tropical seasonally wet or flooded lowland grassland, subtropical or tropical high-altitude grassland, rivers, intermittent rivers, shrub-dominated wetlands, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, sandy shores, arable land, pastureland, plantations, rural gardens, urban areas, heavily degraded former forest, water storage areas, ponds, aquaculture ponds, irrigated land, seasonally flooded agricultural land, and canals and ditches. In terms of phylogeography and history, Ptychadena mascareniensis is the only African amphibian species thought to live on Madagascar and the Mascarene islands. Ptychadena frogs had already established populations on Madagascar before humans arrived there 2000 years ago.