Conservation Ecology Group @ Durham University
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Philip Stephens
I use predictive population ecology to inform biodiversity conservation and wildlife management. In pursuit of a better science of predictive population ecology, my research is focused on four interacting themes. First, to make predictions, ecologists need a robust understanding of available data. Ecological data are noisy, however, demanding a careful treatment of uncertainty and cautious inference. I am interested in understanding uncertainty and its sources in ecological data, and in methods to make robust inferences from data. Second, baseline data often come from biodiversity monitoring, and I am interested in monitoring techniques and their interpretation. Third, there is no fundamental theory to guide predictions about how populations will respond to change – but there is a fundamental theory to make predictions about how individuals will respond to change: natural selection. By understanding how natural selection operates and influences individual strategies, we can strengthen the predictions we make about populations, whose fates are the sum of the fates of their constituent individuals. Fourth, populations do not exist in a vacuum, so I am also interested in species interactions – especially predator-prey interactions and their energetic underpinnings.


Position: Professor in the Department of Biociences

Membership: Behaviour, Ecology and Evolution Research (BEER) Centre

Contact Details: Department of Biosciences,
Contact Details: Durham University, South Road, Durham, DH1 3LE.
Contact Details: Phone: +44 (0)191 334 9102
Contact Details: Email: philip.stephens@durham.ac.uk 
Personal Website
University Profile
Google Scholar Profile
ResearcherID

Education

2002              PhD, University of East Anglia
1997                MSc, Durrell Institute of Conservation and Ecology

1993                BSc Bristol University

Supervises
Taimur Al-Said
​Emily Baker
Sarah Beatham
​Sian Green
Dr Christine Howard

​Sammy Mason
​
Jamie McKaughan
Jonathan Rees
​
Eilidh Smith
​Peter Stewart


Previous:
Julia Crabbe, MSc(R), 2012
Charlotte Bellamy, MSc(R), 2012
Ellie Devenish-Nelson, PhD, 2012
Tom Mason, PhD, 2013, & postdoc
Miranda Davis, PhD, 2013

Georgina Palmer, PhD, 2014
Jamie Alison, MSc(R), 2015
Stuart Brooker, MSc(R), 2015
Leanne Fitzgerald, MSc(R), 2015
Christine Howard, PhD, 2016, & postdoc
Naiara O'Mahony, PhD, 2016
Kasim Rafiq, MSc(R), 2016
​David Whittle, MSc(R), 2017
​Hagen O'Neill, PhD, 2017
Alke Voskamp, PhD, 2017
Harriet Newhouse, MSc(R), 2017
Lucy Gardner, MSc(R), 2017

Melissa Dawson, MSc(R), 2018
​Michelle Gibson, PhD, 2018
Pen-Yuan Hsing, PhD, 2019
​Teegan Docherty, PhD, 2020
Stuart Brooker, PhD, 2020
Nicolas Fuentes-Allende, PhD, 2021
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Selected Publications

Howard, C., Flather, C.H. & Stephens, P.A. (2020) A global assessment of the drivers of threatened terrestrial species richness. Nature Communications 11, 993.

Stephens, P.A., Vieira, M.V., Willis, S.G. & Carbone, C. (2019) The limits to population density in birds and mammals. Ecology Letters 22, 654-663.

Howard, C., Flather, C.H. & Stephens, P.A. (2018) What drives at-risk species richness? Environmental factors are more influential than anthropogenic factors or biological traits. Conservation Letters e12624

Stephens, P.A. et al. (2016) Consistent response of bird populations to climate change on two continents. Science 352, 84-87.

Stephens, P.A. (2015) Land sparing, land sharing, and the fate of Africa’s lions. Proceedings of the National Academy of Sciences of the USA. 112: 14753–14754.

Stephens, P.A., Houston, A.I., Harding, K.C., Boyd, I.L. & McNamara, J.M. (2014) Capital and income breeding: the role of food supply. Ecology. 95:882–896.
 
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