The warm, sunny days that alternate with the frequent, damp weather days this month release a burst of colourful insect activity for visitors to observe amongst the variety of habitats and flowering plants in the Museum’s garden. Joe Beale, who has recently joined the team, tells us more.
Late summer is a lively time in the Museum’s Wildlife Garden. On sunny days you may catch sight of some of our most impressive and colourful insects. Dragonflies that use the garden include the stunning green-striped southern hawker (Aeshna cyanaea), the impressive migrant hawker (Aeshna mixta) and the imperious Emperor dragonfly (Anax imperator).
They may buzz you to investigate, but tend to power up and down without stopping like little fighter planes, as they hunt flying insects around the meadow, hedgerows and ponds.
Guest blog by Liz Duffel, Georeferencing Digitiser
Most specimens within the Museum collection have locality information, showing where the specimen was found, on the accompanying label(s). When we are digitising our specimens, we can use that locality information for georeferencing – the process used to give the locality of a specimen geographical coordinates, so that it can be plotted on a map.
This is important because it allows for mapping and modelling, which underpins research on anything from species distributions and relationships, to environmental changes or targeting conservation practices.
We are working to digitise more than half a million British and Irish butterflies and moths. Our three year iCollections project started in 2013, and we have received additional funding from the Cockayne Trust to continue this digitisation work to September 2017.
The butterflies and moths amassed by avid collectors Dr EA Cockayne, Dr HBD Kettlewell and Lord Walter Rothschild make up the core of the Museum’s world famous collection of British and Irish Lepidoptera.
The Museum is digitising the Lepidoptera collection and using the data to ask important scientific questions about the effects of environmental change. Dr Cockayne passion led him to form the Cockayne Trust for Lepidoptera research, his legacy is funding the digitisation.
The Museum’s entire collection of 181,545 British and Irish butterflies are now in a digital form and available for all to see online in the Museum’s Data Portal.
Each butterfly has a new digital image and digital record of the specimen’s collector, place and date of collection and this data are already being used to work out the effects of climate change on UK butterflies.
The ‘spatial wealth’ of the Museum’s collections is often ignored or at best under-appreciated. Most specimens if not all have a spatial locality associated with them, either written on to a label, written in a notebook, or on the specimen.
These localities can vary between very precise (e.g. a GPS-based latitude/longitude), very imprecise (e.g. ‘South America’) or, most likely, somewhere in-between. Most specimens within the Museum do not have a latitude and longitude, but do have detailed locality information on the accompanying label, which can be used to define co-ordinates for that specimen. So what is georeferencing, why do we need it, and how do we use it?