While difficult to follow at times, this paper by Drake thoroughly explores the theoretical mechanisms of community pattern development. Theoretically this paper focuses on the dynamics and process of developing organization in communities. If you are in need of further discussion on the mechanisms of community assemblage from a theoretical approach enjoy. Drake, J.A. 1991. Community-assembly mechanics and the structure of an experimental ensemble.
Drake provides an detailed overview of the mechanics the structure community assemblage.
The author discusses such issues as ecological community, connectivity, and the maintenance versus causality of community patterns. The author raises numerous questions that cut right to the heart of our understanding of community ecological. Of particular interest is the notion of historical influences on system organization. A well written paper certainly worth the read in order to further grasp the intellectual draw of community assembly theory. Keddy, P.A. 1992.