Taylor AD
Department of Zoology, University of Hawai'i at Manoa, 2538 The Mall, Edmondson 152, Honolulu, 96822, Hawaii
Theor Popul Biol. 1998 Apr;53(2):98-107. doi: 10.1006/tpbi.1997.1347.
Parasitoid-host metapopulation models (after Reeve) were simulated with varying amounts of spatio-temporal or spatial environmental variability, as well as varying dispersal rates and instability of within-population dynamics. Persistence with environmental variability occurred over broad ranges of low dispersal rates, the amount of variability required for persistence increased with increasing dispersal, and the range of values giving persistence was less when within-population dynamics where more unstable. Fixed spatial variation was found to be sometimes more effective than spatio-temporal variability at producing persistence, but with greater variance among replicates. Metapopulations also could persist without environmental variability (as found by Adler), but this occurred at very particular dispersal rates, quite different from those allowing persistence with environmental variability. Copyright 1998 Academic Press.
利用不同程度的时空或空间环境变异性、不同的扩散率以及种群内部动态的不稳定性，对寄生蜂-寄主集合种群模型（根据里夫的模型）进行了模拟。在低扩散率的广泛范围内，环境变异性条件下集合种群能够持续存在，持续存在所需的变异性量随着扩散的增加而增加，当种群内部动态更不稳定时，能使集合种群持续存在的数值范围更小。发现在产生种群持续存在方面，固定空间变异有时比时空变异更有效，但重复实验之间的方差更大。集合种群在没有环境变异性的情况下也能够持续存在（如阿德勒所发现的），但这发生在非常特殊的扩散率下，与环境变异性条件下允许种群持续存在的扩散率有很大不同。版权所有1998年学术出版社。
