Work on the Arun Riverlife project involved cutting trees close to some hedgerows where dormice nest and this work was licensed by Natural England.
In the UK the dormouse has been protected since 1988 by the Wildlife and Countryside Act 1981.
During the tree work, licensed dormice handlers on the WWT Arundel team did daily hand searches of sections to be cut to ensure no dormice were in these zones.
A recent survey of nesting boxes at the wetland reserve found four live dormice and 8 dormice nests inside the 61 nesting boxes onsite.
Two of the dormice found were nesting in boxes on the edges of the recently completed Arun Riverlife project.
WWT Arundel Wetland Centre Manager Dave Fairlamb said: “It’s great news that wildlife like dormice are moving back into the revitalized habitats of the Arun Riverlife project so quickly after the project was finished last June.”
Paul Stevens from the Arundel Wetland Centre told us he's hopeful that the rare chicks will survive thanks to the floating nests and fly to Africa for the winter.
Conservationists in Sussex have hit on a novel way to help some rare birds nest successfully.
Most Common Terns lay their eggs on gravel beaches along the coast. The elegant birds are much scarcer than their name might suggest.
Staff at the Wetland Centre in Arundel have created floating rafts on one on the lakes, and the Terns have managed to raise a family.
The historic town of Arundel has been hosting a national competition to find the country's best town crier. Eighteen from across the country are expected to take part in the event at the town's castle today.
VIDEO: Children have been describing how they escaped from a blazing bus in Sussex. Charlotte Wilkins reports.
VIDEO: Dramatic pictures of the coach fire in Sussex. Although the vehicle was filled with smoke, no one was seriously injured.
VIDEO: Around 60 passengers, including many children, had to abandon a bus after a major fire on board. Two children were taken to hospital for treatment for smoke inhalation. We have interviews with passengers.
Around 60 passengers, including many children, had to abandon a bus after a major fire on board. Two children were taken to hospital for treatment for smoke inhalation. These are the latest pictures from the scene.