Permanent preservation areas reduce the exposure of sediments and nutrients in aquatic medium improve quality water. The analysis natural features anthropic use rivers’ surroundings makes it possible detecting potential ecological unbalance. This study analyzed emerging environmental fragility Preservation Areas (PPA). Environmental fragilities around drainage composing sub-basin were assessed ...

Animal beauty provides a significant aesthetic reason for protecting nature. Worries about aesthetic discrimination and the ugliness of predation might make one think otherwise. Although it has been argued that aesthetic merit is a trivial and morally objectionable basis for action, beauty is an important value and a legitimate basis for differential treatment, especially in the case of animals...

Introduction Causes of impaired female reproductive function Environmental Endocrine Disrupters and Ovarian Function Indications of reproductive function preservation Choice of the method for ovarian function preservation Cryopreservation of Oocytes Introduction The need for oocyte cryopreservation Cryobiological factors influencing cryoefficiency Oocyte structures affected by cryopreservation ...

a benchmarking of policy instruments and experiences for improving farmland preservation in urban fringes of iran1. amir safaee, ph.d. candidate in environmental planning, faculty of environment, university of tehran, tehran- [email protected]. shahrzad faryadi*, associated professor, department of environmental planning and management, faculty of environment, university of tehran, tehran-...

according to importance of environmental resource in natural ecosystem preservation and human life, restriction of destruction is necessary. miankaleh wetland in mazandaran province is settlement of animal and herbaceous rare species and due to migration of birds therefore, this research will discuss determination of preservation value in miankaleh international wetland and measure of individua...

although individuals knowledge and awareness toward natural resources, especially wetlands had been increased but still social consideration level toward wetland importance, functions and sensitivity are low. considerable amount of wetlands destruction caused by miscalculation of wetlands functions’ values in a market condition. estimating the value of wetland’s function is a way in order to un...

Recently, natural resources economists have turned to valuation and appraisal of the contribution of natural resources to human’s welfare and they have made striking progress in valuing the environmental and ecological services of eco-systems. The present study investigated people’s willingness to pay (WTP) for participation in preservation and reclamation of Abuzeidabad desert area through con...

BACKGROUND Taphonomic study of marine vertebrate remains has traditionally focused on single skeletons, lagerstätten, or bonebed genesis with few attempts to document environmental gradients in preservation. As such, establishment of a concrete taphonomic model for shallow marine vertebrate assemblages is lacking. The Neogene Purisima Formation of Northern California, a richly fossiliferous uni...