Journal of Theoretical Biology Volume 241, Issue 1 , 7 July 2006, Pages 14-25 Spatial self-organization in a cyclic resource–species model Stephen M. Krone and Yongtao Guana http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WMD-4HV75WY-2&_user=10&_handle=V-WA-A-W-AD-MsSAYVA-UUA-U-AACBAABDYY-AACUZEVCYY-EVBCVZVUA-AD-U&_fmt=summary&_coverDate=07%2F07%2F2006&_rdoc=3&_orig=browse&_srch=%23toc%236932%232006%23997589998%23624963!&_cdi=6932&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8d881998db8598168345c13c55666065
then again elsewhere is the concept of MetaPopulation