Jacobs Jürgen
Zoologisches Institut der Universität München, Seidlstrasse 25, D-8000, München 2, Federal Republic of Germany.
Oecologia. 1984 Nov;64(3):389-395. doi: 10.1007/BF00379138.
A modification of the logistic model is proposed which incorporates the principles of optimal density and cooperation. Three components have been added defining effectivity, "saturation" and exponentiality of cooperation. By adequate choice of constants a wide array of population characteristics may be represented including threshholds of growth. The main application of the model concerns, low density problems such as colonization and extinction.
提出了一种逻辑模型的修正形式，该模型纳入了最优密度和合作原则。增加了三个组成部分来定义有效性、合作的“饱和度”和指数性。通过适当选择常数，可以表示广泛的种群特征，包括增长阈值。该模型的主要应用涉及低密度问题，如定殖和灭绝。
