Great Crested Newt (Triturus cristatus)

Great Crested Newt (Triturus cristatus)

Triturus cristatus

Avg Lifespan

Up to 15 years

Size

9-17cm long (adults)

Status

Native; Protected under the Wildlife and Countryside Act 1981. UK Post-2010 Biodiversity Framework Priority Species. European Protected Species (Annex IV) of European Habitats Directive.

Surveying Services

Overview

The largest of the UK newt species, great crested newts (GCN) are an ecologically important species that help to cycle nutrients between freshwater and terrestrial habitats via their complex lifecycle. Individuals can be identified by their black colouration, spotted sides and orange abdomen. Populations are facing numerous threats including the loss of key habitats (including ponds and terrestrial habitat), habitat fragmentation, pollution, fish introductions and climate change.

Sampling Advice

  • GCN results are currently only accepted by Natural England for those samples collected via the Ethanol precipitation method and not filtration eDNA. Filtration eDNA can be used for the detection of GCN for other applications or outside of survey season
  • Have any leftover GCN kits from the last 5 years? Consider purchasing a refill kit and utilising those unused consumables for your sampling. Simply buy the refill 50ml tubes with preservative and replace the outdated tubes, sending your sample back in its original box.

Surveying Season

Optimal survey period =
Sub-optimal survey period =

eDNA

Results are only accepted by Natural England between mid-April and late-June. However, samples can be analysed all year round for other applications. Note that newt presence in ponds is generally lower during cooler months and therefore it is expected that less eDNA will be present if sampled during these periods.

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Resources

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