Askham Bog, home to many rare species of moths and plants, is at increasing risk of drying out.

One of the oldest nature reserves in Yorkshire is at increasing risk of drying out due to the impact of climate change, a charity has said.

Askham Bog in York, which was founded in 1946, is home to more than 800 species of moths and plants, some of which are more than 500 years old.

Yorkshire Wildlife Trust (YWT), which maintains the site, has created a fund to protect it in response to the reserve’s peat drying out more each year and threats from non-invasive species like Himalayan balsam.