富食悖论研究进展

Michael Rosenzweig于1971年首次提出＂富食悖论＂这一概念：在简单的被捕食者-捕食者系统中,随着营养物质供应的增加,系统变得不再稳定,并产生大振幅波动,最终导致系统内的物种灭亡。然而,许多实验结果并不支持Rosenzweig的理论。综述＂富食悖论＂的定义、理论和实验研究,同时综述各种解释实际与理论之间矛盾的机制,最后探讨＂富食悖论＂的研究前景。

The advance of the paradox of enrichment

The term ＂paradox of enrichment＂ was coined by Michael Rosenzweig in 1971.In simple prey-predator models,increasing food availability to prey destabilizes the stable system and produces large amplitude population oscillations leading to species extinction.Subsequently,a great number of experimental studies have been conducted to test this theory,while many results do not support Rosenzweig’s theory.In this study,we review the definition of the ＂paradox of enrichment＂,its theoretical and experimental cases,and give a brief overview of the mechanisms underlying the discrepancy between theoretical expectations and experimental observations.Finally,we consider future directions for research on the ＂paradox of enrichment＂.