Posts

Innovation in Bird Bioacoustics saves manpower and cuts costs for surveying target species

Earlier in the year Baker Consultants published a paper in the Elsevier Ecological Indicators journal on “Combining bioacoustics and occupancy modelling for improved monitoring of rare breeding bird populations”.

This innovative piece of research work has caused some excitement in ecology circles and is one that opens up new possibilities when it comes to species monitoring using technology and data analysis skills.  Funded by Natural England, the research was carried out by Baker Consultants’ Technical Director Carlos Abrahams, and published in a high quality peer reviewed journal.  Carlos’ expertise in sound recording and data analysis drove this piece of work, following his previous studies on capercaillie in Scotland. One of the key elements of the paper was the ability to combine the acoustic recordings of target species at a range of locations, with GIS and satellite remote sensing data of the habitats present at each site.  This allowed the environmental factors that determine species presence and detectability to be assessed.

We’re really excited by the outcomes of this research, as it makes acoustic survey methods much more viable for landowners, developers and estate managers.  Traditional surveying techniques ordinarily rely on huge manpower efforts to regularly visit sites to observe and record target species.  With the techniques developed by Carlos, we’re able to monitor the species by gathering larger data sets over longer time-frames, while reducing the manpower costs of data collection.  Survey by acoustic recording is also more effective at producing a robust and defensible dataset, as it can be subject to quality assurance processes and the raw data can be stored permanently.

We are continuing to carry out ecological consultancy during the Covid19 lockdown. If you have any surveying or monitoring needs during this period, then please  get in touch with us via our  contact form on the website, call us on +44 (0)1629 593958 or email us on info@bakerconsultants.co.uk.

Carlos Abrahams has recently provided training in birdsong identification for the UK Acoustics Network.  The workshop demonstrated how the bird population change with the seasons, and for identifying unseen birds by their acoustic signature with the use of SM4 (Song Meters).  The use of SM4’s has further extended the project’s potential for identifying unseen birds by their song and their calls.

The study site, Colt Park Wood, is over 400 years old and it has never undergone a systematic ecological survey. In this site the team have been able to add 13 new species of birds to the 65 noted in Warden’s diaries between 1958-1996.

See the UK Acoustics Network March Newsletter detailing the Birdsong Identification Training.