This paper studies aquatic ecological±economic systems such as the Chesapeake Bay. The stability of such eco-logical±economic systems depends on the successful functioning of a small number of generalist species in a wide range of ecological and economic conditions. We ®rst characterize the persistence of such systems. We then analyze the dynamic and the stochastic aspects of the resource alloc...

The effects of changing hydrological and climatic conditions on the dynamics phosphorus (P) were studied in Northern Adriatic Sea (NA), a coastal system currently affected by these changes. P limitation is one key stresses NA it globally important phenomenon aquatic ecosystems. Therefore, response to stress inducing alkaline phosphatase activity (APA) was characteristic water types NA, formed f...

BACKGROUND There have been numerous studies on dinosaur biogeographic distribution patterns. However, these distribution data have not yet been applied to ecological questions. Ecological studies of dinosaurs have tended to focus on reconstructing individual taxa, usually through comparisons to modern analogs. Fewer studies have sought to determine if the ecological structure of fossil assembla...

The search for novel approaches to establishing ecological baselines (reference conditions) is constrained by the fact that most ecological studies span the past few decades, at most, and investigate ecosystems that have been substantially altered by human activities for decades, centuries, or more. Paleobiology, archeology, and history provide historical ecological context for biological conse...

The paper explores the development of ecological sanitation (EcoSan) within the small-town context of Lichinga, Niassa Province, Mozambique. The paper looks at how ESTAMOS (a Mozambican NGO) and WaterAid introduced EcoSan in Lichinga, how families and communities have responded to EcoSan, and key lessons learned during the process to date that could be relevant to others within and beyond Mozam...

When comparing the average citation impact of research groups, universities and countries, field normalisation reduces the influence of discipline and time. Confidence intervals for these indicators can help with attempts to infer whether differences between sets of publications are due to chance factors. Although both bootstrapping and formulae have been proposed for these, their accuracy is u...

The intention of this paper is to propose interaction design as a venue for IS research into sustainability and in that connection also propose a new theoretical psychological approach to interaction design. This new theoretical psychological framework is based on ecological psychology and activity theory. The paper will outline the scientific demands for the framework as well as the frameworks...