Principal ecologist Dr Lee Brady keeps a recording blog, containing news, announcements and reports concerning the conservation of reptiles and amphibians.
The likely presence of great crested newts in ponds can be predicted by examining aquatic habitat features such as the presence of fish, waterfowl and water quality.
For ponds these data are used to calculate a habitat suitability index (HSI; after Oldham et. al. 2000). The HSI is represented by a number from 0 to 1, the higher the number the more likely the pond is to be occupied by great crested newt.