Wetland ecosystems provide society with a range of valuable ecosystem services. However, wetlands worldwide are experiencing increasing pressure from a number of sources, caused by an interrelated combination of market failure and policy intervention failure. Whatever the cause, the result is...

In der Welt von Pigou (1920) wurde das Umweltprob lern im Konzept der negativen externen Effekte komprimiert, also in Interdependenzen zwischen den Mengengerüsten von Produktions- und Nutzenfunktionen der dezentral autonomen Einheiten. Die Ableitung 9Qi/ 3 Qj 0 einer Produktionsfunktion Qi =...

An ecosystem approach means different things to different people. As a result the concept of ecosystem-based fishery management is evolving and it has no universal definition or consistent application. As regards ecosystem modeling, most economic models of fishery ignore the linkages to lower...

The value of the services provided to human societies by natural ecosystems and biogeochemical cycles has recently been the topic of discussion and research. Here I review some of the basic economic principles necessary for understanding some of the questions that arise in this area. I argue...

This apology is neither a wholesale rejection of economic thought and perspective nor an admission of error in our understanding of ecological values or human impacts on the environment. Life is complex. It's an apology for the unintended damage that's resulted from misapplying economic ideas:...

The article presents the features of biology and ecology, the growth and development of various types of Cousinia in various environmental conditions of Uzbekistan. The distribution area covers mainly foothill and semi-desert and desert zones of Uzbekistan. Cousinia species are found in deserts,...