Palmate Newt

Lissotriton helveticus

Identification 3

Best descriptors when considering the group of "small" newts of the genus Lissotriton is the colouring of belly and sides, where Lissotriton helveticus displays unichromal colouring of the belly subsidised with a linear spot covering the eye in both sexes (females have it less visible). In our nature you can always tell this species apart the other by it's range, but to tell it from L. vulgaris is another matter. The lip stripe in helveticus is minute rather than thick as in vulgaris. Vulgaris has a light lateral stripe on the side between it's front and hind legs and of course the above mentioned colouring.

Females can be a bitch to identify in every species, but if there are present bulbs on the hind legs we can be certain we're dealing with L. helveticus

Ecology & Behaviour 3

Given this animal is only in one corner of our country, my personal experience is practically absent. It relies on shallow pools of water. Newts are good bioindicator species and tend to not inhabit water together with fish. Rather they use pools of still water to breed in the springor early summer. Newts are semiauqatic so they use the ponds as a breeding site and hunting grounds. But climb out in autumn and overwinter under dead leaves or in the ground.

Identifikace (CZ) 3

Pokud jde o skupinu malých čolků (g. Lissotriton) nejlepším poznávacím znamením je zbarvení břicha a stran těla. Kdy čolek hranatý má jednobarevné břicho, vzácně s malými skvrnami po stranách a tmavou skvrnu na hlavě která zasahuje oko u obou pohlaví. Oproti čolku obecnému jeho pruh na horním rtu je výrazně menší. občas je zmiňován bilaterální pruh, který vyvolává dojem hranatého těla.

U samic je vše složitější, protože jsou si nápadně podobné navzájem. Zatímco místem nálezu lze vyloučit druh helveticus od montandonii. Samice montandonii od vulgaris se liší patním hrbolem na zadní noze.

Fontes e Créditos

  1. (c) Jakob Fahr, alguns direitos reservados (CC BY-NC), enviado por Jakob Fahr
  2. (c) Martin Vohralík, alguns direitos reservados (CC BY-NC-ND), enviado por Martin Vohralík
  3. (c) Martin Vohralík, alguns direitos reservados (CC BY-SA)

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