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LUZhi-qi LIHai-yin 《河南师范大学学报(自然科学版)》2003,31(2):120
Inthispaper ,thefollowingsystemisconsidered .dxdt =ax(1-x/k) -cxy/ (my+x)dydt =y(-d -ey+ fx(t-τ) ) / (my(t -τ) +x(t-τ) )x(0 ) >0 ,y(0 ) >0(1.1) Wherex ,ystandsforpreyandpredatordensity ,respectively .a ,k ,c ,d ,e ,f ,m ,τarepositivecon stantsthatstandforpreyintrinsicgrowthrate ,carryingcapacity ,capturingrate ,predatordeathrate ,densitydependentrate ,conversionrate ,halfcapturingsaturationconstant ,timedelay ,respectively .Inmanysituations ,especiallywhenpredatorshavetosearchforfood(an… 相似文献
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