A Conditional Trophic Cascade: Birds Benefit Faster Growing Trees with Strong Links between Predators and Plants

Authors:
Bridgeland, W.T., P. Beier, T. Kolb and T.G. Whitham

Publication Date:
2010

Abstract/Summary:
Our results suggest that this trophic system is predominately bottom-up driven, but under certain conditions the influence of top predators can stimulate whole tree growth. When the most limiting factor for tree growth switched from water availability to herbivory, the avian predators gained the potential to reduce herbivory. This potential could be realized when strong links between the birds and plant, i.e., species that were both abundant herbivores and preferred prey, were present.

Resource Type:
Peer-reviewed Article

Source:
Ecology

Link:
http://onlinelibrary.wiley.com/doi/10.1890/08-1821.1/abstract