1. Trophic cascades in a changing environment: elevated CO 2 and multi-trophic interactions Scott Johnson Rosie Hails & Adam Vanbergen Hefin Jones Supervisors William Hentley Gilles San Martin

2. My PhD Dealing with multiple supervisors Experiments Challenges – Elevated CO 2 experiment – The drought experiment Opportunities Future work - The thesis

3. Dealing with supervisors Avoid this combination of supervisors Welsh A director of Science Alpha male At the other side of the world.

4. Dealing with supervisors Managing their time

5. Dealing with supervisors One supervisor giveth......the other taketh away

6. Challenges Elevated CO 2 experiment A drought experiment

7. The Grodome

8. Lack of reliability resulted in years of neglect and under use. Plant disease Aphids that shouldn’t be there…and the wrong species

10. Ask for help! Contacted other institutions Found a solution Pestered the management Helped secure £60K Problem solved…

11. How about a drought experiment?

14. The drought-a-tron

15. “Everyone in Ecology knows each other, so don’t piss anyone off!” Rosie Hails, 2013

16. Opportunities

18. The thesis Procrastination Search – ‘why procrastinators procrastinate’

20. Procrastination

22. Adam Vanbergen, Hefin Jones, Rosie Hails, Scott Johnson, Caroline Schultz, Scott McKenzie, Joe Rowland, Leah Cuthbertson, Louise Barwell, Rory O’Connor, Gary Powney, Tom August, Phil Martin, Helen Hicks, Sarah McCormack, Miles Nunn, Ned Hewit, Denise Pallet, Helen Roy, Helen Hesketh, Karsten Schonrogge, Phil White, Caroline Wills-Wright, Carolyn Mitchell, Lindsay McMenemy, Alison Dobson, Sheena Lamond, Jim McNicol, Simon Leather, Richard Harrington, Adam Butler, Elma Lahive, Mum, Dan Hentley, Emily Shaw, Sarah Hulmes, Lucy Hulmes, Julia Ferrari, Ali Karley, Ruth Wade, Andrew Beckerman, Sarah Facey, Chris Lesley, Timo Blake, Ian Parker, Alan Bloomfield, Alan Warwick, Geoff Wicks, Jim Jones, Ron Stevenson, Melanie Brien, Rob Thomas, Mike Dunbar, Jason Baverstock, Keith Byrom, Morag McCracken, Emily Taylor, Shabbir Ahmed, Trish Saunders, Marc Botham, David Roy, Alex Stevenson, Chris van der Gast, Mark Jervis, Joanne Lello, Matt Dray, Don O’Bear, Tom Crowther, Steven Thomas, Catlin Pearson, James Ryalls, James Vafidis, Tiffany Aslam, Emma Sayer, Matt Heard Acknowledgements