نتایج جستجو برای: overexploitation
تعداد نتایج: 943 فیلتر نتایج به سال:
Sustainable exploitation is widely advocated as a strategy for reconciling economic pressures upon natural habitats with nature conservation. Two recent papers examine different aspects of the sustainability of the nut harvest on wild populations of Brazil nut trees Bertholletia excelsa in Amazonia. Peres et al. find that many populations of the Brazil nut tree lack juvenile trees and are not r...
The current economic paradigm, which is based on increasing human population, economic development, and standard of living, is no longer compatible with the biophysical limits of the finite Earth. Failure to recover from the economic crash of 2008 is not due just to inadequate fiscal and monetary policies. The continuing global crisis is also due to scarcity of critical resources. Our macroecol...
Abstract The growing human population is responsible for a massive decline in species, biodiversity, and ecosystems across the globe. If we are to significantly slow these losses, attention resources devoted individual causes should be commensurate with magnitude of their contribution problem. purpose this study was determine relative five major threats species identified by International Union...
abstract level of groundwater is decreased which is mainly because, withdrawal of groundwater is increased, because of lack of right management. economics of rural based farming and farming is dependent of water so decreasing of groundwater effects social welfare. in this study decrease of welfare measure by reason of reduction of groundwater level considered. this study investigated the impact...
Timing and location of transient reef fish spawning aggregations are fundamental data required to effectively manage populations, particularly those exposed commercial fisheries. The giant trevally ( Caranx ignobilis ) is a semipelagic apex predator ecological, economic, cultural significance across its Indo-Pacific range, yet information regarding regional for the species remains scarce. Here ...
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