Posts Tagged ‘Bat box’

Surveys in Merseyside

Saturday, May 1st, 2010

United Environmental Services carry out surveys across Merseyside. The surveys which are carried out in Merseyside include great crested newt surveys, bat surveys, Phase 1 habitat surveys, breeding bird surveys, water vole surveys and a full range of environmental surveys. United Environmental Services also offer landscape design and garden design services in Merseyside and can provide the materials and implementation work if required. We have a team of experienced surveyors, landscape architects and ground workers who work to a high standard across Merseyside.

Bat Surveys in Merseyside

Bat surveys can be undertaken in Merseyside at most times of the year. Bats are most active in Merseyside during the spring and summer months. Bat activity surveys can only be carried out in Merseyside at these times of year. At other times of year it is possible to carry out bat scoping surveys of buildings, and bat scoping surveys of trees and other structures which may support roosting bats. If signs of use by bats or features which could support roosting bats are found, then it will be necessary to complete bat activity surveys during the spring or summer. In Merseyside many bat surveys are carried out on barns and farm buildings. This is in order to gain planning permission. Barn conversions are one of the most common causes of loss of bat habitat which is why local planning authorities insist on bat surveys prior to planning permission being granted. There are several species of bat which are resident in Merseyside. These include Noctule bat, common pipistrelle bat, soprano pipistrelle bat, Nathusius’ pipistrelle bat, Daubentons’ bat, Whiskered bat, Brandt’s’ bat. United Environmental Services use several pieces of high tech equipment to find bats during a bat survey. These include bat boxes which can detect the echolocation calls of bats and the Anabat system which detects bat echolocation calls and displays them visually on a PDA screen which makes recording of the bat calls and identification of the bat species much more accurate.

Great Crested Newt Surveys in Merseyside

Great crested newt surveys can be carried out in Merseyside during spring and early summer. Pond surveys for great crested newts are undertaken at a time of year when the great crested newt population returns to the pond to breed. Great crested newt pond surveys have to be carried out to strict guidelines and so the people undertaking them must be properly trained, licensed and experienced to carry out great crested newt pond surveys. Merseyside has many ponds and wet areas which are suitable for great crested newts. Any action which has the potential to disturb great crested newts or their habitats must be preceded by great crested newt surveys of the pond or area, to ensure that no great crested newts are disturbed. United Environmental Services have experienced and appropriately licensed staff that can carry out great crested newt surveys in Merseyside. At times of year when great crested newts are not in the ponds, other survey methods can be employed. The main technique used is the habitat suitability index which is an accepted method of assessing a habitat for its suitability for use by great crested newts.

Phase 1 Habitat surveys in Merseyside

Phase 1 habitat surveys can be carried out in Merseyside at any time of year however the optimum time of year to carry out habitat surveys is during the spring and summer months when a more complete range of Merseyside’s flora and fauna are active. Phase 1 habitat surveys are used to catalogue the different types of habitat which are found in a given area. The results of the phase 1 habitat survey can then be used to assess the impacts of a development on an area and if necessary to specify if any further survey work is required. An example of this would be if a badger sett was found inside or close to the development area then badger surveys would be recommended, similarly if an area of habitat was found which was suitable for use by breeding birds then potentially breeding bird surveys would have to be completed prior to the start of works. Merseyside has a variety of different habitat types which support a range of different species, from woodlands to urban areas. Phase 1 habitat surveys are usually required prior to the start of development work and can save time as any potential issues with protected species or protected habitats will be highlighted early in the development.

United Environmental Services are experienced in a wide range of ecological survey work, contact us for more information.

Cheshire bat group at Beeston Castle

Sunday, January 31st, 2010

Cheshire bat group have visited Beeston Castle in Cheshire to inspect the caves for hibernating bats and and to fit bat boxes onto the trees surrounding the castle. The bat group are working with English Heritage at the site to make improvements to the quality of the habitat surrounding the castle. Stewart from United environmental services helped out with the tree climbing and bat box installation

The castle supports a colony of natterers bats as well as noctules and pipistrelles. The different bat species all use different areas and features of the monument and its grounds  in different ways, and at different times of year.

The caves were man made and the walls are very smooth with few faults which can support hibernating bats. An inspection of the caves by the bat group revealed a single hibernating natterers bat tucked into a small fault in the rock. Herald moths were also seen in the caves and are considered an indicator of conditions suitable for hibernating bats.

Fitting the bat boxes into the trees proved an arduous task as on the day it was snowing quite heavily. The bat group did manage to fit 18 boxes into the trees with a further 12 boxes to be placed in the trees and 4 to be fitted in the caves at a later date.

Installing Bat Hibernation Boxes in Cheshire

Wednesday, December 9th, 2009

Bat Hibernation boxes are fitted high in trees and this one was no exception.This mature beech tree was chosen because of its size location and stability.  Ropes were set up by Mike in order to climb the tree and then a small pulley was placed above the planned position of the hibernation box. Stewart then climbed the tree using the ropes. The pulley was tested for safety and then the bracket was nailed into position. The hibernation box which weighs 30kg was then hoisted up by Mike and Toby and hung in its final position roughly eight metres above the ground.

We hope to find noctule bats using this box next year as they were observed feeding very close by during a survey last summer. Soprano pipistrelles and Brown long eared bats were also recorded at the time and pipistrelles may well use the box when they find it. It is always a good approach to install extra bat roosts around any development even if no bats are to be affected by it. This can help all species of bats as they require many different roosts at different times of the year.

We also fitted hibernation boxes into the walls of the extension. And fitted bat access tiles into the new roof to allow access to the void beneath the tiles for crevice dwelling bats such as pipistrelles.

Stewart.