ABSTRACT
Ecologists must confront six challenges in their efforts to address environmental questions at regional to global scales: (1) developing non-experimental methods to conduct large-scale research; (2) incorporating information from new data sources and other disciplines; (3) standardizing and controlling the quality of data; (4) developing new statistical tools; (5) integrating, synthesizing and modelling knowledge about ecological systems; and (6) incorporating humans and their activities explicitly into ecological studies.
