【摘要】 通过对线性增长的哺乳种群在Allee效应下的最大持续生产量(MSY)进行模拟和计算发现:(1)线性增长的Allee种群系统的MSY与种群的个体大小相关;(2)当B≤0.001时(B=A/K,表示Allee效应,其中K为环境容量,A为Allee效应常数),线性增长的Allee种群受Allee效应的影响很小;(3)线性增长的Allee种群的MSY随生殖率的增加先是快速增长,而后逐渐稳定;同时,MSY随B的增加而增加;另外当形状参数介于0.3~3之间时,MSY同样也会随着形状指数的增加而增加.更多还原

【Abstract】 By calculating and simulating,it is found:(1) The Maximum Sustainable Yield(MSY) of the linear growth population is dependent on the individual weight.(2) When B≤0.001(B=A/K,here K is the carrying capacity,and A is the parameter of Allee effect),the linear growth population with Allee effects have hardly been influenced by Allee effects.(3) The MSY of the linear growth population grows with the increase of net production rate firstly,and then decreases.At the meantime,the MSY grows with the increase of the value of B.Moreover,when the shape parameters of the system are in the range from 0.3 to 2,MSY increases with the increase of them.更多还原