Faria L D B, Costa M I S
Departamento de Biologia, Universidade Federal de Lavras, MG, Brazil.
Braz J Biol. 2009 Nov;69(4):1027-35. doi: 10.1590/s1519-69842009000500006.
Food webs usually display an intricate mix of trophic interactions where multiple prey are common. In this context omnivory has been the subject of intensive analysis regarding food web stability and structure. In a three species omnivory setting it is shown that the modeling of prey preference by the top predator may exert a strong influence on the short as well as on the long term dynamics of the respective food web. Clearly, this has implications concerning the stability and the structure of omnivory systems under disturbances such as nutrient enrichment.
食物网通常呈现出复杂的营养相互作用混合，其中多种猎物很常见。在这种情况下，杂食性一直是关于食物网稳定性和结构的深入分析主题。在一个包含三个物种的杂食性环境中，研究表明顶级捕食者对猎物的偏好建模可能会对相应食物网的短期和长期动态产生强烈影响。显然，这对于诸如营养物质富集等干扰下杂食性系统的稳定性和结构具有重要意义。
