Investigation of Ecological Economic Models in Biodiversity Conservation

Human is depending on nature and ecosystems at all times. Economical values of environmental services such as biodiversity were not measured in the past. Environmental problems occurred gradually and ecological economic concept has been developed. The concept indicates methods for assessing economical value of ecosystems. In this study we investigated general ecological economic models in biodiversity conservation. The models will be reviewed here can be divided into four types: cost-effectiveness (CE) models, renewable resource extraction (RR) models, macroeconomic growth (MG) models with natural resources, and general equilibrium (GE) models with natural resource externalities. The models are mediocre between economical and ecological models, but they aren’t as complex as the later models. We assess the extent to which they integrate relevant ecological theories and indicators of biodiversity.