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040			_aMAIN
041			_aEnglish
100			_aAgarwal, Manju _963544
245			_aModel for the Effect of Environmental Pollution on the Survival of Resource Dependent Population with Time Delay / _cManju Agarwal and Nancy Gupta
520			_aIn this paper, a nonlinear mathematical model is proposed and analyzed to study the effect of environmental pollution on the biological population such as human beings dependent on resource-biomass with time delay. It is assumed that the environmental pollutant have delayed harmful effect on the resource-biomass of the population. The accumulated pollutant in the biomass will indirectly slow down the growth of biological population. The proposed model is analysed for local and global stability of the equilibrium point using stability theory of differential equation as well as through numerical simulation. The introduction of delay in the model has lead to instability in the system. Further, it is shown that if the formation of the toxic substance is either very high or low then it destabilizes the system.
650			_aResource-biomass _963545
650			_aPopulation
650			_aPollutant _963546
650			_aStability _952466
650			_aSimulation
773	0		_08774 _912504 _dNew Delhi : Serials Publications, 2004. _oJ000306 _tInternational Journal of Environment & Development _x09733574
942			_cART
999			_c15396 _d15396