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These disused railway tunnels are the fifth most important sites for hibernating bats in Britain and the most important in south-east England. They are the only known location in the country for the greater mouse-eared bat. Other species include Natterer's, Daubenton's, Brandt's and brown long-eared bats. [4]
The National Bat Monitoring Programme (NBMP) was launched in 1996 and consists of a number of national, annual surveys carried out by a network of volunteers across the UK. The NBMP is a partnership between Bat Conservation Trust (BCT), Joint Nature Conservation Committee (JNCC), Defra and Natural Resources Wales (NRW).
Hertfordshire is a county in eastern England. It is bordered by Bedfordshire to the north, Cambridgeshire to the north-east, Essex to the east, Buckinghamshire to the west and Greater London to the south. The county town is Hertford. As of June 2014, the county has a population of 1,154,800 [1] in an area of 634 square miles (1,640 km 2). [2]
[3] With the guidance of several bat biologists, wildlife managers, policymakers, statisticians, data managers, bat field biologists, population geneticists, population modelers, and database experts they have determined four acceptable monitoring practices: winter hibernaculum counts, maternity roost counts, mobile acoustic surveys along road ...
Horner Woods are also the home to 14 of the 16 UK bat species, which include barbastelle and Bechstein's bats. [62] Stalls in stable block built by Sir Thomas Dyke Acland, 9th Baronet (1752–1794) at Holnicote. The 30 stag heads on the walls date from about 1787 to 1793 and were killed under his mastership of the Devon and Somerset Staghounds ...
One solution sometimes used in bat surveys is to use a second heterodyne detector tuned to a different frequency to detect other species such as Horseshoe bats if these are likely to be present. With Pipistrelles, if it is tuned too low or too high, the difference frequency rises as illustrated in the following example.
These provide excellent hibernation sites for bats and the Old Bow and Old Ham mines are made up of a far-reaching area of underground workings. These are on the west side of the Forest of Dean and are near Clearwell. The notified site includes parts of four mine complexes being Clearwell, Old Bow, Lambsquay and Old Ham. There are inter ...
The General View series of county surveys was an initiative of the Board of Agriculture of Great Britain, of the early 1790s. Many of these works had second editions in the 1810s. The Board, set up by Sir John Sinclair, was generally a proponent of enclosures. [1]
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