Amphibians

Common spadefoot

Pelobates fuscus

The common spadefoot, or garlic toad, is a nocturnal amphibian that digs quick burrows in the soil and, if threatened, gives off a garlic-like smell.

Characteristics

Scientific namePelobates fuscus
LifespanFino a 10 anni
SizeLength 4–8 cm
Energy2/5

Temperament

Nocturnal, burrowing, shy

Diet

Insects and small invertebrates

Description

The common spadefoot is a small anuran amphibian, stocky in build with relatively smooth skin, brownish-grey in colour with darker blotches and sometimes reddish tints. It has large, protruding eyes with vertical pupils, and beneath its hind feet it bears stout, spade-shaped horny spurs that let it dig quickly into the soil. These "spades" give the group its common and scientific names.

Habitat and distribution

It occurs from Central Europe to Western Asia. It favours sandy, loose soils that are easy to dig, in open habitats such as dunes, cultivated fields, heaths and meadows near ponds and pools where it can breed. It is closely tied to the presence of soft ground.

Behaviour

It is a mainly nocturnal and burrowing animal: by day it stays hidden in burrows it digs itself, emerging at night to hunt insects and invertebrates. If disturbed it may puff up, utter calls and release a secretion with a pungent, garlic-like smell, hence the folk name "garlic toad".

Did you know?

Its tadpoles are among the largest in Europe: before metamorphosis they can reach a remarkable size, sometimes larger than the adult. Its hidden life and fragmented distribution make this species little known.

Conservation

It is classed as least concern globally, but in many European regions it is declining and protected. The main threats are the loss of wetlands for breeding and the disappearance of open sandy soils.

Pros

  • Skilful digger, buries itself in seconds
  • Useful predator of nocturnal insects
  • Tadpoles among the largest in Europe

Cons

  • Declining through loss of wetlands
  • Depends on sandy, loose soils
  • Hidden life, hard to observe

FAQ

Why is it called the garlic toad?
When disturbed or frightened it can release a skin secretion with a pungent smell reminiscent of garlic. It is a defence mechanism against predators.
How can it dig so fast?
Beneath its hind feet it has stout, spade-shaped horny spurs, with which it shifts the loose soil while pushing backwards. It can bury itself completely in a few seconds.
Is it poisonous?
It is not dangerous to humans. The garlic-smelling skin secretion serves to deter predators, but poses no threat to people.
Where does it breed?
It lays its eggs in pools, ponds and small bodies of still water. Its tadpoles, among the largest in Europe, develop in the water before turning into young land toads.

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