Photorealistic illustration of invasive flatworms including the Asian hammerhead worm discovered in Sweden.
Photorealistic illustration of invasive flatworms including the Asian hammerhead worm discovered in Sweden.
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To invasive fladorme fundet i Sverige

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To nye arter af invasive fladorme er blevet opdaget i Sverige, oplyser Naturhistoriska riksmuseet. Den ene er den asiatiske hammerhovedorm, der kan blive op til 40 centimeter lang.

Hammerhovedormen, med sit hammerformede hoved, stammer fra Sydøstasien. Den blev fundet i slutningen af sidste år i en butik i Karlstad blandt importerede planter fra Middelhavsområdet.

Forsker Chahinez Bouguerche ved Naturhistoriska riksmuseet udtaler, at ormen er ubehagelig at have i haven. Kemikalier fra dens hud kan forårsage irritation hos mennesker, og rapporter fra andre lande nævner katte, der kaster op efter at have gnavet i dem.

En anden art, den australske Caenoplana variegata, er blevet fundet i svenske gartnerier. Den producerer klæbrigt slim, der hænger fast i katte og hunde, som bliver brugt som transportmiddel.

International handel med prydplanter er den primære spredningsvej. Bouguerche understreger vigtigheden af at indberette fund til SLU's artsdatabase, da ormene mangler naturlige fjender i Sverige.

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