Butterfly and Bumblebee Survey August 2022
Harestone Moss Limited
Description
Northwoods Rewilding Network carried out a butterfly and bumblebee survey at Harestone Moss, Aberdeenshire, on August 9th, 2022. The purpose of the visit was i) to map and record the diversity of bumblebees and butterflies present; and ii) explore potential for ecological surveys of wetland habitat in the future.
The conditions for surveying both butterflies and bumblebees were perfect on the day of survey with light variable winds (Beaufort 1-2), moderate cloud cover (50%) and a max temperature of 24C in the afternoon.
Purpose
The results of the surveys below provide a snapshot of species diversity, abundance and distribution of butterflies and bumblebees across Harestone Moss in late summer/early autumn. These results can be used, along with other data, as an ecological baseline against which to measure future ecological change and rewilding progress.
Methods
Butterfly surveys were carried out following the Wider Countryside Butterfly Survey methods. Full details of the survey methods can be found here: https://ukbms.org/wider-countryside-butterfly-survey. Bumblebees were surveyed using methods broadly following the BeeWalk survey by the Bumblebee Conservation Trust. A single continuous transect of approximately 3.6km covering as many habitat types as possible was walked slowly (see transect route in Figures 1 and 2). All butterflies and bumblebees were recorded to species level, where possible, on a 1:25,000 Ordnance Survey map. Not all observations of white butterflies (Pieridae) could be identified to species level and were simply recorded as ‘white sp.’. For bumblebees, species-level identification was possible for most individuals except for white-tailed and buff-tailed workers. In this situation each observation was simply recorded as white/buff-tailed. Flowering plants being visited by bumblebees and butterflies were also recorded.
Citation
Harestone Moss Limited ([Insert download year]). Butterfly and Bumblebee Survey August 2022. Occurrence dataset on the NBN Atlas
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