Have great crested newts Triturus cristatus translocated to a pond in mid-Wales been detrimental to existing amphibian populations?

Slater, Frederick 2026. Have great crested newts Triturus cristatus translocated to a pond in mid-Wales been detrimental to existing amphibian populations? The Herpetological Bulletin 175 , pp. 24-27. 10.33256/hb175.2427 Item availability restricted.

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Abstract

At a large pond in mid-Wales, studies of the breeding amphibians present in the 1980s found some 3000 Lissotriton newts (smooth and palmate), 1400 common toads Bufo bufo, and some 200 female common frogs Rana temporaria. Introduction of great crested newts in the 1990s seemed by 2025 to have altered the makeup of breeding amphibians to the extent that for 3 years no spawn of toads or frogs have been found and Lissotriton newts, especially the smooth newt numbers have dropped alarmingly low. The possible reasons forb these changes are discussed.

Item Type:	Article
Status:	In Press
Schools:	Schools > Biosciences
Subjects:	Q Science > QL Zoology
Publisher:	British Herpetological Society
ISSN:	2634-1387
Date of First Compliant Deposit:	19 January 2026
Date of Acceptance:	13 June 2025
Last Modified:	16 Feb 2026 16:06
URI:	https://orca.cardiff.ac.uk/id/eprint/184043

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