All the scenarios and models made up by the most titled scientists in biology, agriculture, geophysics, and human health prove that the four main resources of the existence of the biosphere are so polluted that it is a matter of time until a major collapse of human existence occurs. The problem...

All the scenarios and models made up by the most titled scientists in biology, agriculture, geophysics, and human health prove that the four main resources of the existence of the biosphere are so polluted that it is a matter of time until a major collapse of human existence occurs. The problem...

Research on climate change in recent decades has disproportionately focused on predicting impacts while largely ignoring adaptation strategies. How agricultural systems can adapt to minimize the uncertainty caused by rising temperatures is one of the most important research issues today. We...

Grapevine leafroll disease (GLRD) presently threatens the grape and wine industry worldwide. We develop a cellular automata model of GLRD diffusion and control in two ecologically-connected, independently-managed vineyards. One vineyard produces high-value wine grapes whereas the other produces...

The grapevine leafroll disease (GLRD) threatens grape harvests in the United States and the world. This viral disease reduces yield, delays fruit ripening, and affects wine quality. The disease ecology is still under study and the spatial-dynamics of the spread process remains poorly understood....

Traditional surplus production models are based on restrictive assumptions of fish population dynamics and distribution, fish catch, and fishing effort, and can provide misleading guidelines for fisheries management. Following a review of two conventional models and later contributions, this...

The paper deals with analyses and propositions for adaptive governance of an alpine (A) and an Ethiopian (B) agropastoral system with common-pool pastures. Sustainability can be enhanced by augmenting (i) the ecological and social capitals in relation to costs and (ii) the resilience or adaptive...

In one way or another, all environmental and natural resource problems associated with overexploitation or under provision of public goods, arise from incompletely defined and enforced property rights. As a result private decision makers do not consider or internalize social benefits and costs...