Pelophylax saharicus
In 3 days ~40% in a week ~70%
The Sahara frog (Pelophylax saharicus) is a species of frog in the family Ranidae. It is native to Egypt, Libya, Tunisia, Algeria, Morocco, Spanish North Africa (Ceuta and Melilla), and Western Sahara; it has also been introduced to Gran Canaria. In French it is called grenouille verte d'Afrique du Nord, and in Spanish it is known as rana verde norteafricana.
During an expedition to the Sahara Desert in 1912, German ornithologist Ernst Hartert collected several specimens of the Sahara frog at multiple sites in Algeria, which he addressed as "the lake at El-Golea" and "the ditches of the Tidikelt oases called Igosten and In-Salah". The following year, German-British zoologist George Albert Boulenger wrote a description of these specimens for Hartert. Believing they represent a variant of the edible frog (which had the scientific name Rana esculenta at the time), he gave this amphibian the scientific name Rana esculenta saharica. In a 1927 publication, Russian zoologist Pavel Viktorovich Terentjev treated the Sahara frog as a form of the marsh frog (known as Rana ridibunda at the time) under the name Rana ridibunda saharica instead... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Sahara Frog sighting in Algiers on a given day, based on 9 verified sightings from GBIF citizen-science data. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
September
In that month about 30% of wildlife watchers report a Sahara Frog in Algiers on a given day, against under 5% in July and October–February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Sahara Frog sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 cities where we can rate Sahara Frog sightings, Algiers ranks 4th at about 20%. The best odds are in Marrakesh (Morocco, about 70%), Fez (Morocco, about 50%) and Rabat (Morocco, about 40%).
GBIF citizen-science records
It is estimated from how often the Sahara Frog is recorded against all the amphibians logged in Algiers (9 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
