Vicious circles: positive feedback in major evolutionary and ecological transitions.

Ecological Facilitation May Drive Major Evolutionary Transitions

A public goods approach to major evolutionary innovations.

The history of life is marked by a small number of major transitions, whether viewed from a genetic, ecological, or geological perspective. Specialists from various disciplines have focused on the packaging of information to generate new evolutionary individuals, on the expansion of ecological opportunity, or the abiotic drivers of environmental change to which organisms respond as the major dr...

The evolution of plant sexual diversity.

Charles Darwin recognized that flowering plants have an unrivalled diversity of sexual systems. Determining the ecological and genetic factors that govern sexual diversification in plants is today a central problem in evolutionary biology. The integration of phylogenetic, ecological and population-genetic studies have provided new insights into the selective mechanisms that are responsible for ...

Ecological and evolutionary consequences of niche construction for its agent.

Niche construction can generate ecological and evolutionary feedbacks that have been underinvestigated so far. We present an eco-evolutionary model that incorporates the process of niche construction to reveal its effects on the ecology and evolution of the niche-constructing agent. We consider a simple plant-soil nutrient ecosystem in which plants have the ability to increase the input of inor...

Vicious and Virtuous Circles in the Management of Knowledge: The Case of Infosys Technologies

We adopt a systems perspective to explore the challenges that organizations face in harnessing knowledge. Such a perspective draws attention to mutually causal processes that have the potential to generate both vicious and virtuous circles. Based on a longitudinal study at Infosys TechnoV. Sambamurthy and Mani Subramani were the accepting senior editors for this paper. logies, we conclude that ...