Biosphere, ecology, Discussion List. Gatewayed to biosph-l@ubvm.cc.buffalo.edu. Readers: 13000 (0.2%) Mesgs per month/day: 41/1 Crossposting: 5% Megs per month/day: 0.2/0.007 Sites reciving this Group: 39% Cost ratio ($US/month/rdr): 0.01