2017 is the first year we have used iRecord as our main recording tool and recorders have responded well to the online systems together with UKMBs for Transects, Wider Countryside Butterfly Survey, Big Butterfly Count and others. Very few recorders reverted to Spreadsheets for their data. So we received over 48,000 records from over 2000 recorders in the West Midlands. Most 10 km squares were covered adequately. We have assumed that each square should return between 20 and 30 species. The table below shows the number of species recorded in 2017 The results from all the systems are downloaded into a database which enables us to create a distribution map for all species. An example of the distribution map is shown below for Dingy Skipper. Maps at 5km squares are also available. Distribution maps for 5 years from 2013 to 2017 for each species are published on the website. The Bar Chart shows which species are recorded most frequently and in contrast a bar chart from the transect showing relative population. There is a marked contrast between casual recordings and population from Transects. Some species for example are not suitable for Transect counts e.g. Brown Hairstreak – Grayling etc. So timed or GPS counts are more suitable.
Example of Distribution Map
Dingy Skipper 2013 - 2017 Example
Bar Chart Showing most recorded Species for Casual Recording
Data 2013 to 2017 This does not show the commonest species - just the highest recorded with casual recording
Bar Chart Showing showing the most populous species from Transects
By way of contrast population from 31 transects from 2013 to 2017
The most important part of Casual Recording is to find out where the threatened species are and to catalogue the sites. These species appear on our "Biodiversity Action Plan" (BAP) .
The Tables below show site locations in 2017 where BAP Species are found. You need Excel 2010 or higher to read the file