#130- Uninvited guests: The growing impact of invasive non-native species episode artwork

EPISODE · Jun 23, 2026 · 54 MIN

#130- Uninvited guests: The growing impact of invasive non-native species

from Ear to the Ground / Clust i'r Ddaear

This episode has been recorded with Farming Connect Specialist Officers, Lynfa Davies and Geraint Jones. They explore what invasive non‑native species are and why they matter, particularly in woodland and farm environments. We explain how these plants, animals, and pathogens—often introduced through human activity—can spread rapidly, outcompete native species, and disrupt entire ecosystems. From tree diseases like ash dieback to damaging pests such as the yellow-legged Asian hornet, we discuss the real impacts: loss of biodiversity, threats to local wildlife, economic costs, and long-term damage to landscapes. Put simply, these are species that don't belong—and when they take hold, the environment pays the price. Gwesteion digroeso: Effaith gynyddol rhywogaethau anfrodorol goresgynnol  Mae'r bennod hon wedi'i recordio gyda  Lynfa Davies a Geraint Jones, Swyddogion Arbenigol Cyswllt Ffermio. Maent yn archwilio beth yw rhywogaethau anfrodorol goresgynnol a pham eu bod yn bwysig, yn enwedig mewn amgylcheddau fferm a choetir. Rydym yn egluro sut y gall y planhigion, yr anifeiliaid a'r pathogenau hyn—a gyflwynir yn aml trwy weithgaredd dynol—ledaenu'n gyflym, trechu rhywogaethau brodorol, ac amharu ar ecosystemau cyfan. O glefydau coed fel clefyd coed ynn i blâu niweidiol fel y gacynen felyngoes, rydym yn trafod yr effeithiau go iawn: colli bioamrywiaeth, bygythiadau i fywyd gwyllt lleol, costau economaidd, a difrod hirdymor i dirweddau. Yn syml, dyma rywogaethau nad ydynt yn perthyn i'r amglychedd—a phan fyddant yn cydio, mae'r amgylchedd yn talu'r pris.

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#130- Uninvited guests: The growing impact of invasive non-native species

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