Climate Change, Air Pollution and Global Challenges

Chapter 11

Impacts of Atmospheric Change on Tree–Arthropod Interactions

John J. Couture*^,1 and Richard L. Lindroth^†,    *Department of Forest and Wildlife Ecology, University of Wisconsin–Madison, Madison, Wisconsin, USA,    ^†Department of Entomology, University of Wisconsin–Madison, Madison, Wisconsin, USA,    ¹Corresponding author: e-mail: [e-mail]

Abstract

Anthropogenic activities are increasing concentrations of atmospheric pollutants, especially atmospheric CO₂ and tropospheric O₃, that play significant roles in the functioning of forest ecosystems. Elevated levels of CO₂ and O₃ alter tree metabolism, growth, and chemical composition. Shift in chemical composition may, in turn, cascade through trophic levels to influence ecosystem ...