Game theory is one of the key paradigms behind many scientific disciplines from biology to
behavioral sciences to economics. In its evolutionary form and especially when the …

Dispersal, the tendency for organisms to reproduce away from their parents, influences
many evolutionary and ecological processes, from speciation and extinction events, to the …

Many ecological phenomena may be modelled using apparently random processes
involving space (and possibly time). Such phenomena are classified as spatial in their …

Theory in spatial ecology has to steer a narrow and challenging course between the Scylla
of oversimplification and the Charybdis of intractability. Until about 15 years ago, most of …

The evolution of cooperation is an enduring conundrum in biology and the social sciences.
Two social dilemmas, the prisoner's dilemma and the snowdrift game have emerged as the …

Punishment is an important mechanism promoting the evolution of altruism among non-
relatives. We investigate the coevolution of altruism and punitive behavior, considering four …

Social behavior involves “staying and helping,” two individual attributes that vary
considerably among organisms. Investigating the ultimate causes of such variation, this …

In early 2002, with the help of Alun Lloyd, Steven Tanner, Ben Bolker, and Tony Sun, I took
on the task of creating a state-of-the-art review of models for the geographic spread of …

Ecological findings on small spatial or temporal scales often do not extrapolate to larger
scales (Wiens 1989; Kareiva 1990; Horne and Schneider 1995; Englund and Cooper 2003) …

The evolutionary puzzle of cooperation describes situations where cooperators provide a
fitness benefit to other individuals at some cost to themselves. Under Darwinian selection …