Hyla meridionalis
Silhouette: Will Booker · PhyloPic
In 3 days ~30% in a week ~50%
The Mediterranean tree frog (Hyla meridionalis), or stripeless tree frog, is a species of frog found in south-west Europe and north-west Africa. It resembles the European tree frog, but is larger (some females are up to 65 millimetres (2.6 in) long), has longer hind legs, and the flank stripe only reaches to the front legs (often starting at the eyes, not at the nostrils). The croaking resembles that of H. arborea, but it is deeper and slower.
The Hyla meridionalis generally breed from the end of March through the beginning of July; their breeding is dependent on a few variables, including water availability. This tree frog species has a larval period of 15 days.
This frog is found in central and southern Portugal, Spain (from Catalonia to Andalusia and Extremadura), southern France, northern Italy (only Liguria), Morocco, northern Algeria and northern Tunisia. It also has ancient introduced populations in Madeira and the Canary Islands and a recent introduction in Menorca.
Stöck M., Dubey S., Klütsch C., Litvinchuk S. N., Schleidt U., and Perrin N. (2008): Mitochondrial and nuclear phylogeny of circum-Mediterranean tree frogs from the Hyla arborea... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Camargue | 🇫🇷 France | |
| 2 | Monfragüe National Park | 🇪🇸 Spain | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Doñana National Park | 🇪🇸 Spain | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Barcelona | 🇪🇸 Spain |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Lisbon Oceanarium | 🇵🇹 Portugal |
With luck
About 10% of wildlife watchers report a Mediterranean Tree Frog sighting in Barcelona on a given day, based on 34 verified sightings from GBIF citizen-science data. It is the 3rd most-seen of the 6 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
April and June
In those months about 20% of wildlife watchers report a Mediterranean Tree Frog in Barcelona on a given day, against under 5% in February and November, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Mediterranean Tree Frog sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Barcelona, in our data
Barcelona is the only city on Wallace's Line with enough records to rate Mediterranean Tree Frog sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Anura
The closest relatives of the Mediterranean Tree Frog that you can see in Barcelona (order Anura, Frogs and Toads) are Iberian Green Frog (about 20%), Natterjack Toad (about 10%) and Catalonian Midwife Toad (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mediterranean Tree Frog is recorded against all the amphibians logged in Barcelona (34 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.
