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John Griffin, Assistant Professor

« Please Note: John Griffin is no longer active on the GCE-LTER Project so contact information may not be accurate (see the GCE Personnel page for an up-to-date list of participants) »

Research Emphasis:

My chief interests lie in exploring patterns of - and relationships among - biodiversity, the strength of trophic interactions and ecosystem functioning. Coastal habitats host webs of interacting species that are often amenable to manipulation, providing an excellent opportunity to conduct such research.

Contact Information:

Primary Organization:  University of Swansea

Mailing Address:

Dr. John Griffin
Department of Biosciences
University of Swansea
Swansea SA2 8PP
Wales, United Kingdom

E-Mail:  J.N.Griffin@swansea.ac.uk

Web Page:  http://www.sillimanlab.com/people-griffin.php

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GCE Data Sets:

INV-GCES-1211 (Effects of marsh periwinkle (Littoraria irrorata) size and density on cordgrass (Spartina aterniflora) biomass and dead standing material)

INV-GCES-1110 (Effects of the relative abundance of predatory mud crabs (Panopeus obesus and Eurytium limosum) on abundances of snails and fiddler crabs in a Georgia salt marsh)

INV-GCES-1010 (Experimental manipulation of predatory crab species identity (Panopeus obesus vs. Eurytium limosum) and size-structure and assessment of effects on invertebrate densities, sediment properties and plant biomass.)

INV-GCES-0912 (Rates of consumption of marsh periwinkles (Littoraria irrorata) by mud crabs (Eurytium limosum and Panopeus obesus) between August and December in a Georgia salt marsh)

GCE Publications and Presentations: (custom bibliography)

Journal Articles

Griffin, J. and Silliman, B.R. 2018. Predator size-structure and species identity determine cascading effects in a coastal ecosystem. Ecology and Evolution. 8:12435-12442. (DOI: 10.1002/ece3.4571)

Angelini, C., Griffin, J., van de Koppel, J., Derksen-Hooijberg, M., Lamers, L., Smolders, A.J.P., van der Heide, T. and Silliman, B.R. 2016. A keystone mutualism underpins resilience of a coastal ecosystem to drought. Nature Communications. 7:12473. (DOI: 10.1038/ncomms12473)

Angelini, C., van der Heide, J., Griffin, J., Derksen-Hooijberg, M., Lamers, L., Smolders, A.J.P. and Silliman, B.R. 2015. Foundation species' overlap enhances biodiversity and ecosystem multifunctionality from the patch to landscape scale. Proceedings of the Royal Society B. (DOI: 10.1098/rspb.2015.0421)

Atkins, R., Griffin, J.N., Angelini, C., O'Connor, M. and Silliman, B.R. 2015. Consumer- plant interaction strength: importance of body size, density and metabolic biomass. OIKOS. (DOI: 10.1111/oik.01966)

Davidson, A., Griffin, J., Atkins, R., Angelini, C., Coleman, F. and Silliman, B.R. 2015. Non-consumptive predator effects intensify grazer-plant interactions by driving vertical habitat shifts. Marine Ecology Progress Series. 537:49-58. (DOI: 10.3354/meps11419)

Griffin, J.N., Toscano, B., Griffen, B. and Silliman, B.R. 2015. Does relative abundance modify multiple predator effects? Basic and Applied Ecology. 7:641-651. (DOI: 10.1016/j.baae.2015.05.003)

Soomsdat, N., Griffin, J.N., McCoy, M., Hensel, M.S., Buhler, S., Chejanovski, Z.A. and Silliman, B.R. 2014. Independent and combined effects of multiple predators across ontogeny of a dominant grazer. OIKOS. 123(9):1081-1090. (DOI: 10.1111/oik.01579)

Silliman, B.R., McCoy, M., Angelini, C., Holt, R.D., Griffin, J.N. and van de Koppel, J. 2013. Consumer Fronts, Global Change, and Runaway Collapse in Ecosystems. Annual Review of Ecology, Evolution, and Systematics. 44:503 - 538. (DOI: 10.1146/annurev-ecolsys-110512-135753)

Griffin, J. and Silliman, B.R. 2011. Predator diversity stabilizes and strengthens trophic control of a keystone grazer. Biology Letters. 7:79-82. (DOI: 10.1098/rsbl.2010.0626)

Griffin, J. and Silliman, B.R. 2011. Resource Partitioning and Why It Matters. Nature Education Knowledge. 2(1):8.

Griffin, J., Butler, J., Soomsdat, N., Brun, K., Chejanovski, Z.A. and Silliman, B.R. 2011. Top predators suppress rather than facilitate plants in a trait-mediated tri-trophic cascade. Biology Letters. Published online. (DOI: 10.1098/rsbl.2011.0166)

Thomsen, M.S., Wernberg, T., Olden, J., Griffin, J. and Silliman, B.R. 2011. A framework to study the context-dependent impacts of marine invasions. Journal of Experimental Marine Biology and Ecology. 400:322-327. (DOI: 10.1016/j.jembe.2011.02.033)

Thomsen, M.S., Wernberg, T., Olden, J., Griffin, J.N. and Silliman, B.R. 2011. A broad framework to organize and compare invasive species impacts. Environmental Research. 111:899-908.