It is managed by the Hampshire and Isle of Wight Wildlife Trust.

[2] An area of 39.0 hectares (96 acres) is designated as Baddesley Common biological Site of Special Scientific Interest.

[1][3] An area of 37.6 hectares (93 acres) is designated Emer Bog Special Area of Conservation[4] Most of this site is valley bog, together with damp grassland, heath and woods.

The bog is not grazed and it has a rich flora and fauna, including many moths.

Plants include reed, marsh cinquefoil and bog bean.