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Very rare species are not considered axiophytes; for a species to be a useful indicator of quality habitat it must be relatively frequent in those habitats, but scarce elsewhere. A typical example would be dog's mercury (Mercurialis perennis), a plant slow to colonise new sites, but common in ancient woodland and old hedgerows.
Blossom of lesser celandine (Ficaria verna) Penduculate oak trees in Wistman's Wood.. The concept of ancient woodland, characterised by high plant diversity and managed through traditional practices, was developed by the ecologist Oliver Rackham in his 1980 book Ancient Woodland, its History, Vegetation and Uses in England, which he wrote following his earlier research on Hayley Wood in ...
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]
Geobotanical prospecting refers to prospecting based on the composition and health of surrounding botanical life to identify potential resource deposits. [1] Using a variety of techniques, including indicator plant identification, [2] remote sensing [3] and determining the physical and chemical condition of the botanical life in the area, [4] [5] geobotanical prospecting can be used to ...
There is also an extraordinary range of geophytes, the plants that have bulbs or bulbous growths that make them especially adapted to woodland. These include the ancient woodland indicators of lily-of-the-valley, herb paris and ramsons, but also the uncommon in angular Solomon'-seal (Polygonatum odoratum) as well as the common in bluebells ...
Unusual trees found fossilized in Canada were buried alive 350 million years ago. Scientists say the discovery opens a new window into the history of life on Earth.
Potton Wood has been designated a Site of Special Scientific Interest for its significance as an oak/ash/field maple ancient woodland; its structure and flora are typical of the West Cambridgeshire Boulder Clay woodland group. [2] Unusual plants in the wood include oxlip (a national rarity at the edge of its European range here), herb paris ...