Dear Ecolog recipients, We are currently working on a meta-analysis to investigate how top-down effects of birds on arthropod assemblages and herbivory change along a habitat intensification gradient. This paper is being prepared as part of a Special Feature for Ecology. The basic idea will be to compare bird exclosure studies from both natural and agricultural systems (both temperate and tropical) to see whether top down effects are affected by changes in habitat and food web complexity.
We are writing to make a request to those that might have unpublished data on bird exclosure studies from forests or agricultural systems. Ideally, the basic information that we will need is mean arthropod numbers and herbivory for control and exclosure treatments, standard deviation or standard error, sample size, and duration of exclosure treatments. For those that have data to provide, we will follow up for further information. Please respond directly to me: [EMAIL PROTECTED] Cheers, Stacy Philpott, Sunshine VanBael, Russ Greenberg
