Griffin, John - Swansea University - Department of Biosciences

个人简介

I am a lecturer in the Department of Biosciences at Swansea University. My specialist areas include: Biodiversity, Ecosystem Functioning, Coastal Ecology, Restoration Ecology Research in my group is aimed at elucidating how biodiversity and species interactions affect the functioning of ecosystems. We are addressing this across a range of systems including rocky shores, salt marshes, coral reefs and even alpine meadows. Empirical approaches include large-scale surveys, field and mesocosm experiments and meta-analysis. Our research examines the functional consequences of two different axes of biodiversity: horizontal and vertical diversity. Along the horizontal axis of diversity (i.e. diversity of competing species), we are aiming to help predict the consequences of species extinctions, asking questions including: ‘how do diversity-function relationships change with scale from small experiments to landscapes?’ and ‘does the functional or evolutionary uniqueness of a species predict its importance for ecosystem functioning?’ In terms of vertical diversity (i.e. interactions between species in different trophic levels), we are focusing on cascading effects of non-trophic interactions. Our work in multiple systems is showing that predator extinction can have counterintuitive – yet predictable – effects resulting from the trait-dependent loss of non-trophic (behavioural) interactions. Our work sits at the interface of pure and applied ecology. While we aim to improve understanding of ecological communities, we anticipate that our ongoing work will help to meet two key gaps in applied ecology: 1) the need to accurately predict how anthropogenic changes to biodiversity will influence ecosystem services; and 2) the need to identify species interactions that will hasten ecosystem recovery and promote resilience, therefore improving the success of ecosystem restoration programs. Start Date End Date Position Held Location 2008 Present PhD University of Plymouth 2004 Present MSc Bangor University 2003 Present BSc University of Nottingham

近期论文

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(2017). A general biodiversity-function relationship is mediated by trophic level. Oikos 126(1), 18-31. https://cronfa.swan.ac.uk/Record/cronfa31872 doi:10.1111/oik.03652 (2016). A keystone mutualism underpins resilience of a coastal ecosystem to drought. Nature Communications 7, 12473 https://cronfa.swan.ac.uk/Record/cronfa31871 doi:10.1038/ncomms12473 (2016). Plant diversity effects on grassland productivity are robust to both nutrient enrichment and drought. Philosophical Transactions of the Royal Society B: Biological Sciences 371(1694), 20150277 https://cronfa.swan.ac.uk/Record/cronfa31870 doi:10.1098/rstb.2015.0277 Griffin, J. (2016). Contrasting trophic-cascade effects driven by variation in morphology of the perches used by a larval damselfly. Freshwater Biology 61(5), 963-701. https://cronfa.swan.ac.uk/Record/cronfa31869 doi:10.1111/fwb.12739 (2015). The sign of cascading predator effects varies with prey traits in a detrital system. Journal of Animal Ecology 84(6), 1610-1617. https://cronfa.swan.ac.uk/Record/cronfa31867 doi:10.1111/1365-2656.12403 (2015). Does relative abundance modify multiple predator effects?. Basic and Applied Ecology 16(7), 641-651. https://cronfa.swan.ac.uk/Record/cronfa31868 doi:10.1016/j.baae.2015.05.003 Isbell, F., Craven, D., Connolly, J., Loreau, M., Schmid, B., Beierkuhnlein, C., Bezemer, T., Bonin, C., Bruelheide, H., de Luca, E., Ebeling, A., Griffin, J., Guo, Q., Hautier, Y., Hector, A., Jentsch, A., Kreyling, J., Lanta, V., Manning, P., et. al. (in press). Biodiversity increases the resistance of ecosystem productivity to climate extremes. Nature Atkins, R., Griffin, J., Angelini, C., O'Connor, M. & Silliman, B. (2015). Consumer-plant interaction strength: importance of body size, density and metabolic biomass. Oikos 124(10), 1274-1281. https://cronfa.swan.ac.uk/Record/cronfa23628 doi:10.1111/oik.01966 Angelini, C., van der Heide, T., Griffin, J., Morton, J., Derksen-Hooijberg, M., Lamers, L., Smolders, A. & Silliman, B. (2015). Foundation species' overlap enhances biodiversity and multifunctionality from the patch to landscape scale in southeastern United States salt marshes. Proceedings of the Royal Society B: Biological Sciences 282(1811), 20150421 https://cronfa.swan.ac.uk/Record/cronfa23636 doi:10.1098/rspb.2015.0421 LEFCHECK, J., BASTAZINI, V. & GRIFFIN, J. (2015). Choosing and using multiple traits in functional diversity research. Environmental Conservation 42(02), 104-107. https://cronfa.swan.ac.uk/Record/cronfa23635 doi:10.1017/S0376892914000307 Lefcheck, J., Byrnes, J., Isbell, F., Gamfeldt, L., Griffin, J., Eisenhauer, N., Hensel, M., Hector, A., Cardinale, B. & Duffy, J. (2015). Biodiversity enhances ecosystem multifunctionality across trophic levels and habitats. Nature Communications 6, 6936 https://cronfa.swan.ac.uk/Record/cronfa23630 doi:10.1038/ncomms7936 Gamfeldt, L., Lefcheck, J., Byrnes, J., Cardinale, B., Duffy, J. & Griffin, J. (2015). Marine biodiversity and ecosystem functioning: what's known and what's next?. Oikos 124(3), 252-265. https://cronfa.swan.ac.uk/Record/cronfa23629 doi:10.1111/oik.01549 Wu, X., Griffin, J., Xi, X. & Sun, S. (2015). The sign of cascading predator effects varies with prey traits in a detrital system. Journal of Animal Ecology 84(6), 1610-1617. https://cronfa.swan.ac.uk/Record/cronfa23632 doi:10.1111/1365-2656.12403