The dynamics of collembolan populations: a matrix model of single species population growth
The dynamics of collembolan populations: a matrix model of single species population growth
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跳虫种群动态：单一物种种群增长的矩阵模型
DOI：
10.1139/z77-043
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发表时间：
1977
影响因子：
1.4
通讯作者：
B. Longstaff
中科院分区：
文献类型：
--
作者：
B. Longstaff
本文建立了土壤弹尾虫种群生长的矩阵模型。在实验室条件下保存的两个物种的每一个的四个重复培养的数据进行建模的差分方程的形式，考虑到人口的大小结构。这些方程的建立是为了实现Leslie型矩阵模型。密度对种群增长率的影响以密度相关的繁殖力函数的形式被纳入模型中，模型的成功程度各不相同，有些模型准确地预测了连续时间间隔的种群增长模式和种群大小，而另一些模型只显示了趋势。将每个物种的每个重复的确定性模型组合以产生该物种的随机模型。这些活动也取得了好坏参半的成功。确定性模型的平衡值进行了计算，并检查其稳定性。莫……
The construction of a matrix model for the growth of populations of soil Collembola is described. Data from four replicate cultures of each of two species kept under laboratory conditions were modelled in the form of difference equations, which took into account the size structure of the populations. These equations were set up so as to effect a Leslie-type matrix model. The effect of density upon population growth rate was incorporated into the model in the form of a density-related function for fecundity.The success of the modelling procedures was varied with some of the models accurately predicting both the pattern of population growth and the population sizes at successive time intervals, whilst others only showed the trends. The deterministic models of each of the replicates for each species were combined to produce a stochastic model for that species. These also met with mixed success. The equilibrium values for the deterministic models were calculated and their stability properties examined. The mo...