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Ruscus Aculeatus Dorset Environmental Records Centre Newsletter No.71 Spring/Summer 2014 What is the benefit of online recording? here has been a bit of a buzz In Dorset we have favoured using It is amazing to think that a butterfly Taround promoting online recording Living Record which has a far more record you added to Living Record after over the past few months. There are local approach to data management. seeing it on an afternoon walk could certainly advantages to encouraging The detail of your records is only soon become part of a national picture online recording for us in the Records visible to you, the county recorder and of distribution. It is online recording Centre as it standardises the data DERC but summary data can be seen which is allowing us to speed up the coming in and reduces the number of by others immediately. The versatile process and DERC is adapting to these wrong grid references. But what are Distribution Map screen lets you select new technologies whilst retaining our the benefits to the recorder? a single species or group of species, set reputation for providing reliable data. dates and choose either the county If you choose to use something like or a site to see the distribution. In PlantTracker, a downloadable this way you can see the extent app developed for recording invasive of active recording as maps are plants in the field, then you have updated in real time. As soon as the advantage of photographic a record is added it will appear identification guides as well as a on the maps. The data is checked quick way to add your data. iRecord is by local experts before being another popular choice with recorders downloaded and incorporated nationwide and covers all taxonomic into our database for use locally groups. Your records and uploaded by recording groups, research photographs can be seen immediately students, ecologists and local by others. Data from both these authorities. Much of our data is also systems feed into the national BRC uploaded to the NBN Gateway where it So thank you to everyone who has data warehouse to be checked by can be used by national organisations been using Living Record (over 100,000 experts and shared with the recording such as Natural England or viewed by records for Dorset added during 2013). community. There are also many other researchers and members of the public. If you are adding data to another specialist online recording systems, We will only make data available once system, we are looking at ways to access often promoted through the recording it has been checked to minimise errors. and incorporate this data. And if you groups. For DERC the important issues Most recorders and data users accept haven’t yet tried online recording, why are getting data back to DERC and this takes a little time, especially as not give it a go? providing a system that encourages most county recorders take on the role recording through the extra flexibility of voluntarily. We are extremely grateful Carolyn Steele an online system. to them, especially as the number of (Records Centre Manager) records continues to increase. is no longer managed this way due to The project will investigate the Woodland Research economics. The alternatives are clear ecological responses at three trophic felling and replanting, although for levels of the food chain – vegetation, Project begins in ancient semi-natural woodland this is invertebrates and birds. Danny will undesirable. use automated acoustic North Dorset A more recording methods to measure recent bird species richness and ERC has recently become involved approach is abundance and integrate this Din a research project, undertaken to manage with invertebrate and botanical by Danny Alder, to understand the woodland data. The results will provide the ecological effects of different ecosystem by ecological evidence on the silvicultural regimes in an ancient maintaining effects of this type of irregular semi-natural woodland. Our broad- a continuous forest management which are leaf woodlands are a valuable resource canopy largely unknown. for timber production, recreation and through selective harvesting and The project is funded by Dorset County environmental benefits. Traditionally natural regeneration, which retains Council, Forestry Commission, Dorset the woodland management has been a varied age structure and diverse Environmental Records Centre & the to coppice although most woodland vegetation profile. Golden Bottle Trust. Dorset History Centre, Bridport Road, Dorchester, Dorset DT1 1RP Tel: 01305 225081 Email:[email protected] Website: www.derc.org.uk 333937 Dorset Environmental Records Centre he found them ‘near the Butcher’s beach huts’. In June 1997 Phil saw an example sitting on a Broom or cladode (‘leaf’) of Butcher’s Broom on Rempstone Heath Knee Holly near Corfe Castle. Realising with some disbelief that (Ruscus aculeatus) Butcher’s Broom must be the host plant, he spent the next few months uncovering As its name suggests, how young larvae lived in the “aculeatus” meaning soft shoots of the expanding prickly or spiny, this plant stems, moving to make a has a distinctive form. The sinuous mine in the green “leaves” are actually part of bark or cladode, and then the stem, modified to give appeared feeding within the the plant some protection green berries, which ripened against grazing animals. unevenly to give a parti- Butcher’s Broom is an coloured appearance. What Ancient Woodland indicator remains unclear is how larvae plant formerly restricted to survive on male bushes Southern England, South which do not produce berries Wales, the Isles of Scilly and because the new stems and continental Europe but its cladodes quickly become distribution has become too leathery to eat! The adult blurred in recent decades as moth hatches between Acrolepiopsis it became a popular garden late autumn and early marcidella plant, easily escaping beyond spring, hiding amongst its native range to woods and the dense bushes until hedgerows. But it doesn’t live June when it appears alone. for a few weeks to lay eggs. Adults have been Despite the inhospitable, recorded in the eastern prickly nature of Butcher’s half of Dorset (Corfe Ruscus acileatus Butchers Broom Broom, it is host to a Castle to Studland, and at Rus cus aculeatu s Bu tcher's- broom remarkable micro moth, Edmondsham), Hampshire, 3 Acrolepiopsis marcidella. Sussex and the coastal cliffs Prior to 1997 when the life on Guernsey. 2 history was unravelled by Phil Sterling, the moth was The moth appears to follow 1 known in the UK only from a closely the native distribution handful of records between of its host plant, in Dorset 0 1886 and 1892 by C.R. Digby at least, having not been from Studland, where he said recorded where Butcher’s 9 Broom is planted 8 elsewhere in the county, K ey to symb ols 7 l ast reco rded f or 1 km f ro m 199 0- 2003 l ast reco rded for 1 km b efore 1990 leaving us to record ed 2004 on ward s © D E RC 2013 wonder if its 4 5 6 7 8 9 0 1 2 presence could DERC has recently analysed our database looking for locations of protected be used as species which have not been seen since 2003. This map shows the distribution of an indicator native Butcher’s Broom and the black squares show potential sites for re-visiting. DERC has recently analysed database our looking of the native So, DERC would welcome any records for Butcher’s Broom for locations of protected ich species wh have not distribution of but, as importantly, please look out for signs of the moth and the plant. letbeen us know seen what you since find. 2003. This map shows the distribution of native Butcher’s Broom and the black Edited by Carolynsquares Steele show potential sites for re-­‐visiting. Registered in England as Dorset Environmental Records Centre Trust Company Limited 34 Registered Charity No. 900287 Registered Company No. 2447393.
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