A Stochastic Theory of Species Interactions

My research with Kevin McCann (U of Guelph) and Alan Hastings (UC Davis) on a stochastic theory of species interactions has been published in Theoretical Ecology and is available online. The Duality of Stability: Towards a Stochastic Theory of Species Interactions G. Gellner, K.S. McCann, A. Hastings Abstract Understanding the dynamics of ecological systems using stability…

Food Webs & Fisheries

Exciting news: our paper “Food webs and the sustainability of indiscriminate fisheries” in the Canadian Journal of Fisheries and Aquatic Sciences is published and available online.

Grasslands Diversity Loss

A project I worked on with Andrew MacDougall, based at the University of Guelph, was the cover article published in Nature: 494, 86-89 (February 2013). Diversity loss with persistent human disturbance increases vulnerability to ecosystem collapse A.S. MacDougall, K.S. McCann, G. Gellner, R. Turkington Abstract Long-term and persistent human disturbances have simultaneously altered the stability and diversity…

Reconciling the Omnivory-Stability Debate

Excited that my research has been published in The American Naturalist. (vol.179, no.1), January 2012. Reconciling the Omnivory-Stability Debate Gabriel Gellner and Kevin McCann Abstract Despite attempts at reconciliation, the role of omnivory in food web stability remains unclear. Here we develop a novel community matrix approach that is analogous to the bifurcation method of modular food web…

Food Chains and Food Web Modules

We have written a brief and accessible introduction to Food Chains and Food Web Modules, which discusses typical ways in which ecologists simplify and deconstruct food webs. We briefly review modular theory, focusing on two ubiquitous modules – the food chain and the diamond module – before discussing how results from modular theory contribute to…

Stability of Diverse Food Webs

“Structural asymmetry and the stability of diverse food webs” – a Nature paper I co-authored with Neil Rooney, Kevin McCann and John C. Moore in 2006 has over 400 citations.