نتایج جستجو برای: overexploitation
تعداد نتایج: 943 فیلتر نتایج به سال:
Species establishment in a model system in a homogeneous environment can be dependent not only on the parameter setting, but also on the initial conditions of the system. For instance, predator invasion into an established prey population can fail and lead to system collapse, an event referred to as overexploitation. This phenomenon occurs in models with bistability properties, such as strong A...
Coast redwood (Sequoia sempervirens (Lamb. ex. D. Don) Endl.) is unique among conifer species because of its longevity, the great sizes of individual trees, and its propensity to reproduce through sprouts. Timber harvesting in the native redwood range along the coast of the western United States has necessitated restoration aimed to promote old forest structures to increase the total amount of ...
Over the last decades agroforestry parklands in Burkina Faso have come under increasing demographic as well as climatic pressures, which are threatening indigenous tree species that contribute substantially to income generation and nutrition in rural households. Analyzing the threats as well as the species vulnerability to them is fundamental for priority setting in conservation planning. Guide...
Groundwater depletion is the natural consequence of withdrawing water from an aquifer at a higher rate than recharge. If groundwater abstraction exceeds recharge for extensive areas and long time, overexploitation or persistent can occur [...].
Drought and overexploitation of groundwater should control the aquifer properties (e.g. storage coefficient and transmisivity). The role of stress factors is identified when the performance of aquifer hydrodynamic coefficients be studied. Since in the most aquifers, allocation and utilization management is based on the pumping test in the past, it would not be expected the optimal management. I...
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