Providing evidence to improve practice

Individual study: Translocation of great crested newt Triturus cristatus eggs for conservation purposes in Ilkley, West Yorkshire, UK

Published source details

Haycock G.B. (2016) Translocation of great crested newt Triturus cristatus eggs for conservation purposes in Ilkley, West Yorkshire, UK. Conservation Evidence, 13, 27-32

Summary

Translocation of great crested newt eggs was undertaken for nature conservation purposes, with the aim of establishing a new population in a currently unoccupied part of their natural range in UK. Research prior to undertaking the translocation established that suitable habitat existed at the receptor site and no great crested newts were present at the time. Approximately 600 eggs were carefully introduced to the receptor pond from a donor pond each spring for three years. Five years after the initial translocation, a population appeared to be established, with breeding recorded in the receptor pond and two adjacent ponds. The methodology may have implications for population translocations undertaken for mitigation purposes under licence in UK, as currently the focus is on welfare and translocation of terrestrial juveniles and adults rather than eggs and larvae. Results reported here indicate that to increase likelihood of success when attempting to translocate populations of great crested newt, an emphasis on translocation of eggs as well as adults in terrestrial phase would be prudent.