One of the ongoing battles for the volunteers is to control the spread of non-native, invasive plants that would otherwise take hold on the Reserve.
Rhododendrons were a major problem when the Reserve was founded in 2000 and they continue to be a problem today.
It's not unusual to be talking to a volunteer and suddenly see them disappear into the undergrowth with a mini-mattock in hand to dig up a Rhododendron seedling they've just spotted.
Rhododendrons are very determined plants and care has to be taken not to just leave them on the ground - they'll re-root quite easily. Seedlings are often hung up on bushes and trees so that they can't re-root.
With the changing climate the list of problem plants is always under review by the volunteers.