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This woodland is present between 500 feet (150 m) and 1,000 feet (300 m) on the valley-side. Over Eighty-five different types of vascular plant species have been recorded in the area, including thirty-one ancient woodland indicators. As well, it features areas of the valley mire, heathland and acidic grassland.
Some epiphytic lichen species may be used as "ancient woodland indicators"; they can used to quantitatively assess the degree to which a forest has had a long history of canopy continuity. [11] The presence of these species is a reliable indicator that the forest has existed back to early medieval times, without being clear-cut and regrown.
In England this resulted in the first national Ancient Woodland Inventory, produced in the 1980s. Although ancient woodland indicator species have been recorded in post-1600 woodlands and also in non-woodland sites such as hedgerows, it is uncommon for a site that is not ancient woodland to host a double-figure indicator species total. [9]
Dog's Mercury an axiophyte associated with ancient woodlands in the UK. An axiophyte (Greek: "worthy plant") is a plant that is of particular interest to botanists, conservationists and ecologists. The significance of axiophytes is from their strong association with habitats considered to be of high merit for conservation.
The woodlands of Bedfordshire cover 6.2% of the county. [2] Some two thirds of this (4,990 ha or 12,300 acres) is broad-leaved woodland, principally oak and ash. [3] A Woodland Trust estimate of all ancient woodland in Bedfordshire (dating back to at least the year 1600), including woods of 0.1 ha (0.25 acres) and upward suggests an area of 1,468 ha (3,630 acres). [4]
The ground flora contains a large number of ancient woodland indicator species. [2] 18th-century enclosure maps of Potterhanworth show that the modern Potterhanworth Wood was then much larger consisting of Norman Hagg Wood in the south, Great Wood in the middle and Quern or Queen Dike Wood in the north. [3]
Hanger Wood is an ancient woodland and Site of Special Scientific Interest (SSSI) in the parish of Stagsden, Bedfordshire in the United Kingdom.Situated approximately one kilometre east of the village of Stagsden, the 24.12 hectares (59.6 acres) woodland was declared a SSSI in 1988, being described by Natural England as "one of the best remaining examples of wet ash-maple woodland in ...