Study

The translocation of great crested newts, a protected species

Actions

This study is summarised as evidence for the following.

Action Category

Translocate great crested newts

Action Link
Amphibian Conservation
  1. Translocate great crested newts

    A review of translocation programmes in 1990–1994 for great crested newts Triturus cristatus in England, UK (May 1996), extended in later studies (Oldham & Humphries 2000, Edgar, Griffiths & Foster 2005), found that adults returned to ponds in most cases and bred in 61% of translocations monitored. However, longer-term monitoring over 6–18 years showed that 53% of 15 translocations before 1990 failed. In 1990–1994, adults returned in subsequent years in 92% of 92 cases monitored, although newts were already present at 10 ponds. Seventy-two translocations from development sites involved adults (average: 197; total: 13,115), juveniles (57; 914), larvae (32; 501) and many eggs. Twelve translocations involved collecting eggs and rearing and releasing larvae (average: 643) and juveniles (63) for introduction purposes. Habitat enhancement (e.g. log piles, hibernacula, tree planting) was undertaken in 79% of 28 cases where there was partial habitat destruction. Where there was complete habitat destruction, newts tended to be moved to existing sites. Licenses for all translocation projects between 1990 and 1994 were reviewed and 74 licensees contacted for information. Extra monitoring information was obtained for translocations undertaken before 1990.

     

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 19

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust