Skip to main content
U.S. flag

An official website of the United States government

Divergent pheromone-mediated insect behaviour under global atmospheric change

Informally Refereed
Authors: Edward B. Mondor, Michelle N. Tremblay, Caroline S. Awmack, Richard L. Lindroth
Year: 2004
Type: Scientific Journal
Station: Northern Research Station
Source: Global Change Biology. 10:1820-1824.


While the effects of global atmospheric changes on vegetation and resulting insect populations('bottom-up interactions') are being increasingly studied, how these gases modify interactions among insects and their natural enemies ('top-down interactions') is less clear. As natural enemy efficacy is governed largely by behavioural mechanisms, altered prey finding and prey defence may change insect population dynamics. Here we show that pheromone-mediated escape behaviours, and hence the vulnerability of insects to natural enemies, are divergent under atmospheric conditions associated with global climate change.


air pollution, atmospheric change, bottom-up, carbon dioxide, greenhouse gas, ozone, pheromone, predator–prey, top-down


Mondor, Edward B.; Tremblay, Michelle N.; Awmack, Caroline S.; Lindroth, Richard L. 2004. Divergent pheromone-mediated insect behaviour under global atmospheric change. Global Change Biology. 10:1820-1824.