Rana iberica
Silhouette: Sharp Photography, sharpphotography.co.uk · PhyloPic
In 3 days ~30% in a week ~60%
The Iberian frog (Rana iberica), also known as Iberian stream frog, is a species of frog in the family Ranidae found in Portugal and Spain. Its natural habitats are rivers, mountain streams and swamps. It is threatened by habitat loss, introduced species, climate change, water contamination, and increased ultraviolet radiation.
The Iberian frog can grow to about 7 cm (2.8 in) in length but a more normal size is 5 cm (2.0 in). Females tend to be larger than males. The tympanum can be seen just behind the eye and is about half its size in diameter. From the side of the head to the groin is a distinct ridge, the dorsolateral fold, which distinguishes this species from the common frog. The skin is smooth with fine granulations. The colour is very variable, being mainly olive, reddish or greyish-brown, sometimes with darker markings. A dark streak runs between the nostril and the eye, and a thin, white line marks the upper lip. The hind legs are sometimes barred with dark brown. The hind feet are more completely webbed than the common frog. The underside is pale, sometimes with darker spots, but the centre of the throat is not spotted.
The Iberian frog has a distinctive... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 2 | Picos de Europa National Park | 🇪🇸 Spain |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Porto | 🇵🇹 Portugal |
With luck
About 10% of wildlife watchers report an Iberian Frog sighting in Porto on a given day, based on 41 verified sightings from GBIF citizen-science data. It is the 6th most-seen of the 7 amphibians we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
November
In that month about 20% of wildlife watchers report an Iberian Frog in Porto on a given day, against under 5% in February, July and December, the lowest months. That is one of Porto's wettest months, with about 140 mm of rain against 15 mm in July.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Iberian Frog sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Porto, in our data
Porto is the only city on Wallace's Line with enough records to rate Iberian Frog sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Iberian Frog is recorded against all the amphibians logged in Porto (41 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.
