Grafscher hybrid frog

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Grafscher hybrid frog
Grafscher hybrid frog (Pelophylax kl.grafi)

Count shear hybrid frog ( Pelophylax kl. Grafi )

Systematics
without rank: Amphibians (Lissamphibia)
Order : Frog (anura)
Subordination : Neobatrachia
Family : Real frogs (Ranidae)
Genre : Water frogs ( pelophylax )
Type : Grafscher hybrid frog
Scientific name
Pelophylax kl. graphi
( Crochet , Dubois , Ohler & Tunner , 1995)

The Grafsche hybrid frog ( Pelophylax kl. Grafi ), also Graf's hybrid frog , is a hybridogenic hybrid from the complex of forms of the water frogs . Originally it was created by crossing the parent species sea ​​frog ( Pelophylax ridibundus ) and Iberian water frog ( Pelophylax perezi ). The shape is named after its discoverer J.-D. Named Graf.

features

The Grafsche hybrid frog reaches a head-trunk length of 65 to 80 (rarely up to 120) millimeters. The external appearance is very similar to the Iberian water frog, but the mating calls of the males sound almost like those of the sea frog. An unambiguous determination is only possible through molecular biological investigations.

Occurrence and way of life

The distribution area of ​​the Grafschen Hybrid Frog includes southern France and northeastern Spain. In France it is found mainly on the coast of the Mediterranean and Atlantic, in Spain it occurs south to the Ebro . It colonizes roughly the same habitats as the Iberian water frog.

During observations in an outdoor facility in Poland, females released 6 to 10 spawning balls, each consisting of 150 to 300 eggs, into the water from late March to mid-July.

supporting documents

  • Dieter Glandt: Pocket dictionary of amphibians and reptiles in Europe . Quelle & Meyer Verlag, Wiebelsheim 2010, ISBN 978-3-494-01470-8 , pp. 148-149.

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