Mascarene Ridged Frog

Mascarene Ridged Frog

Ptychadena mascareniensis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
30–40% · Possible
overall probability at Ankarafantsika National Park
7 Verified records at Ankarafantsika National Park
September Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The Mascarene grass frog (Ptychadena mascareniensis), or Mascarene ridged frog, is a species of frog in the family Ptychadenidae. It is found in sub-Saharan Africa, Madagascar, and Mauritius. Its natural habitats are 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. Phylogeography / History Ptychadena mascareniensis is the only African amphibian species thought to occur on Madagascar and the Mascarene islands. Madagascar was populated by Ptychadena frogs before the arrival of humans 2000 years ago. Wikipedia →

30–40% of wildlife watchers report a Mascarene Ridged Frog sighting in Ankarafantsika National Park, based on 7 days of visitor records from GBIF citizen-science data.

📅 Monthly Probability

10–20
Jan
20–30
Feb
20–30
Mar
60–70
Apr
10–20
May
10–20
Jun
40–50
Jul
10–20
Aug
60–70
Sep
20–30
Oct
5–10
Nov
10–20
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Probability
1 Ankarafantsika National Park 🇲🇬 Madagascar
30–40%
2 Ranomafana National Park 🇲🇬 Madagascar
20–30%
3 Taï National Park 🇨🇮 Ivory Coast
Insufficient data

Quick answers

What are the chances of seeing a Mascarene Ridged Frog in Ankarafantsika National Park?

About 32% of wildlife watchers report a Mascarene Ridged Frog sighting in Ankarafantsika National Park, based on 7 days of visitor records from GBIF citizen-science data.

When is the best time to see Mascarene Ridged Frog in Ankarafantsika National Park?

September has the highest sighting rate for Mascarene Ridged Frog in Ankarafantsika National Park in our monthly data.

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