Bombina
| Fire-bellied toads | |
|---|---|
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| European fire-bellied toad (Bombina bombina) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Bombinatoridae |
| Genus: |
Bombina Oken, 1816 |
| Species | |
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See text. |
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See text.
The fire-bellied toads or firebelly toads are a group of eight species of small frogs (most species typically no longer than 1.6 in or 4.1 cm) belonging to the genus Bombina.
"Fire-bellied" is derived from the brightly coloured red- or yellow-and-black patterns on the toads' ventral regions, which act as aposematic coloration, a warning to predators of the toads' reputedly foul taste. The other parts of the toads' skins are green or dark brown. When confronted with a potential predator, these toads commonly engage in an Unkenreflex, "Unken-" being the combining form of "Unke", German for fire-bellied toad. In the Unkenreflex, the toad arches its back, raising its front and back legs to display the aposematic coloration of its ventral side.
The currently recognized species are:
The female of the species typically lays 80–300 eggs that can be found hanging off plant stems. The offspring develop in pools or puddles. Their metamorphosis is complete within a few weeks, peaking in July–August. The toadlets attain a length of 12–15 mm. The eggs, laid in August, metamorphose only after the winter, with the toadlets attaining a length of 3–5 cm. These toadlets still have white bellies.
Tadpoles eat mainly algae and higher plants. The young toads and the adult toads consume insects, such as flies and beetles, shrimp and larvae; but also annelid worms and terrestrial arthropods. Fire-bellied toads are sometimes active during the day, but are more so during the night. The mating call of the male sounds like a dog's bark, rather than the typical drawn out croaking groan.
The species can be found both in Europe and in areas in Asia with a moderate climate.
All kinds of toads prefer habitats of stagnant water, which they are reluctant to leave. The fire-bellied toad lives primarily in a continental climate in standing water or calmer backwaters of rivers or ponds. The species can also be found in flood pools and in floodplains. The yellow-bellied species typically live at higher altitude, where they are primarily found in small bodies of water like ponds or water-filled ruts, often near small mountain streams. The Asian species also live in small bodies of water and can live at altitudes of over 3000 meters.
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