Liz Humphreys

Senior Research Ecologist

Liz's current job is to develop research projects principally concerned with wetland and marine issues. Her most recent work has focused on understanding the impacts of the renewable industry on seabirds. Previously to joining the BTO, Liz's main research interests involved quantifying the factors that determine the foraging performance and energetics of seabirds.

Interests & Responsibilities

As well as her commitments to the Wetland & Marine team within the BTO, Liz also worked on a diverse range of topics including machair, urban and woodland ecology. She has also worked on a number of policy relevant projects including the management of goose management populations in Scotland.

Other Information

Honorary Lecturer, SBES, University of Stirling
Former editor of the Seabird Group Newsletter and member of its Executive Committee
European representative of the World Seabird Union


BSc (Hons) Environmental Biology, University of St Andrews, 1991-1995 MSc Ecology, University of Aberdeen, 1997-1998. PhD Kittiwake Foraging and Energetics, University of Stirling, 1998-2002.

Recent BTO Publications

Jarrett, D., Calladine, J., Cotton, A., Wilson, M.W. & Humphreys, E. 2020. Behavioural responses of non-breeding waterbirds to drone approach are associated with flock size and habitat. Bird Study View at journal website (DOI: 10.1080/00063657.2020.1808587) 7pp
Cook, A.S.C.P., Humphreys, E.M., Bennet, F., Masden, E.A. & Burton, N.H.K. 2018. Quantifying avian avoidance of offshore wind turbines: Current evidence and key knowledge gaps. Marine Environmental Research 140 : 278-288 View at journal website (DOI: 10.1016/j.marenvres.2018.06.017) 11pp
Calladine, J., Humphreys, E.M., Gilbert, L., Furness, R.W., Robinson, R.A., Fuller, R.J., Littlewood, N.A., Pakeman, R.J., Ferguson, J. & Thompson, C. 2017. Continuing influences of introduced hedgehogs Erinaceus europaeus as a predator of wader (Charadrii) eggs four decades after their release on the Outer Hebrides, Scotland. Biological Invasions 19 : 1 981-1 987 View at journal website (DOI: 10.1007/s10530-017-1422-4)
Kathryn E Ross, Niall H K Burton, Dawn E Balmer, Elizabeth M Humphreys, Graham E Austin, Beth Goddard, Helena Schindler-Dite and Mark M Rehfisch 2016. Urban Breeding Gull Surveys: A Review of Methods and Options for Survey Design. Research Report no. 680. ISBN: 978-1-908581-70-9 58pp
Calladine, J., Humphreys, E.M. & Boyle, J. 2015. Changes in breeding wader populations of the Uist machair between 1983 and 2014. Scottish Birds 35 (part 3) : 207-215

Other Publications

Humphreys, E.M., Gillings, S., Musgrove, A., Austin, G., Marchant, G, and Calladine J 2015. An update of the review on the impacts of piscivorous birds on salmonid populations and game fisheries in Scotland. Commissioned Research Report to SNH.

Cook, A.S.C.P., Still, D.A., Humphreys, E.M. & Wright, L.J. 2015. Review of evidence for identified seabird aggregations. JNCC Report No 537. JNCC, Peterborough.

Humphreys, E.M. Austin, G.E., Thaxter, C., Johnston, A., Risely, K., Frederiksen, M. & Burton, N.H.K. 2014. Development of MSFD Indicators, Baselines and Targets for Population Size and Distribution of Marine Birds in the UK. Report to JNCC.

MMO 2014. Review of post-consent offshore wind farm monitoring data associated with licence conditions. A report produced for the Marine Management Organisation, pp 194. MMO Project No:1031. ISBN: 978-1-909452-24-4.

Mackenzie, M.L., Scott-Hayward, L.A.S., Oedekoven, C.S., Skov, H., Humphreys, E. and Rexstad, E. 2013. Statistical Modelling of Seabird and Cetacean data: Guidance Document.  University of St. Andrews contract for Marine Scotland, SB9 (CR/2012/05).

Humphreys, E.M., Kirkland, P., Russell, S., Sutcliffe, R., Coyle, J. & Chamberlain, D. 2012. Urban Biodiversity: Successes and Challenges: The Biodiversity in Glasgow (BIG) project: the value of volunteer participation in promoting and conserving urban biodiversity. The Glasgow Naturalist Volume 25, Part 4.

Humphreys, L., Winterbottom, S., Smith, M., Humphrey, J., Ockendon, N., & Chamberlain, D. 2008. Development of a methodology for predicting the impact of demographic change and urban development on biodiversity. Report to SNIFFER.

Daunt, F., Camphuysen, C.J., Humphreys, E.M., Hamer, K.C., Wanless, S. & Skov, H. 2005. Local/daily scale hydrography, prey and seabird interactions. In Understanding Marine Food-web Processes: an Ecosystem Approach to Sustainable Sandeel Fisheries in the North Sea: IMPRESS Final Report (ed C.J. Camphuysen), pp 163-180. NIOZ-rapport, 2005-5, NIOZ, Texel, Netherlands.

Summers, R.W., Humphreys, E.M., Newall, M. & Donald, C. 2002. Nest site selection by Crossbills Loxia spp. in ancient native woodlands at Abernethy Forest, Strathspey, Highland. Bird Study 49:258-262.

Content Related to Liz Humphreys