Ocean and Earth Science, National Oceanography Centre Southampton

Gemma Clucas

BA, MRes

Primary position:
Postgraduate research student


The University of Southampton
Miss Gemma Clucas's photo

BA Natural Sciences, University of Cambridge, 2007-2010
Research Assistant, Institute of Zoology, London, 2010-2011
MRes Ocean Sciences, University of Southampton, 2011-2012 (MRes Commendation awarded)
PhD Candidate, University of Southampton, 2012-Present


The University of Southampton's electronic library (e-prints)


Brekke, Patricia, Ewen, John G., Clucas, Gemma and Santure, Anna W. (2015) Determinants of male floating behaviour and floater reproduction in a threatened population of the hihi (Notiomystis cincta). Evolutionary Applications (doi:10.1111/eva.12287).
Younger, Jane L., Clucas, Gemma V., Kooyman, Gerald, Wienecke, Barbara, Rogers, Alex D., Trathan, Philip N., Hart, Tom and Miller, Karen J. (2015) Too much of a good thing: sea ice extent may have forced emperor penguins into refugia during the last glacial maximum. Global Change Biology, 21, (6), 2215-2226. (doi:10.1111/gcb.12882).
Clucas, G.V., Dunn, M.J., Dyke, G.J., Emslie, S.D., Naveen, R., Polito, M.J., Pybus, O.G., Rogers, A.D. and Hart, T. (2014) A reversal of fortunes: climate change ‘winners’ and ‘losers’ in Antarctic Peninsula penguins. Scientific Reports, 4, (5024) (doi:10.1038/srep05024).
Polito, M.J., Clucas, G.V., Hart, T. and Trivelpiece, W.Z. (2012) A simplified method of determining the sex of Pygoscelis penguins using bill measurements. Marine Ornithology, 40, (2), 89-94.


Research Interests

Comparative analyses can reveal which factors are most important in producing population genetic structure in different species. It may be that differences in life histories, habitat preferences or physical barriers create different patterns of population structure in closely-related, sympatric species. Alternatively shared histories over geological time-scales may have produced similar patterns of genetic structure, if populations were isolated in glacial refugia for example. My research aims to characterise the population structure of multiple species of Antarctic and sub-Antarctic penguins, in order to perform these comparative analyses.

I am also interested in how climate change throughout the Holocene has affected penguin populations from the high Antarctic to temperate latitudes. To do this, I am reconstructing historical population sizes for multiple species and populations, using both ancient and modern DNA. I will then correlate these changes in population size with paleoclimate conditions, to show how periods of past climate change have affected penguins.


Dr Gareth Dyke
Dr Tom Hart (University of Oxford)

Primary research group:  Marine Biology and Ecology


Miss Gemma Clucas
Department of Zoology Tinbergen Building South Parks Road Oxford OX1 3PS Tel: +44 (0) 1865 281329

Email: gemma.clucas@noc.soton.ac.uk