【人为干扰对生态系统的影响】A. S. MacDougall K. S. McCann G. Gellner & R. Turkington. Diversity loss with persistent human disturbance increases vulnerability to ecosystem collapse. Nature 2013 494: 86–89. doi:10.1038-nature11869

Abstract

Long-term and persistent human disturbances have simultaneously altered the stability and diversity of ecological systems with disturbances directly reducing functional attributes such as invasion resistance while eliminating the buffering effects of high species diversity^{1 2 3 4}. Theory predicts that this combination of environmental change and diversity loss increases the risk of abrupt and potentially irreversible ecosystem collapse^{1 2 3 5 6 7} but long-term empirical evidence from natural systems is lacking. Here we demonstrate this relationship in a degraded but species-rich pyrogenic grassland in which the combined effects