Affiliation: | (1) Department of Statistics, Texas A & M University, 77843 College Station, TX, USA;(2) Department of Biology, Texas A & M University, 77843 College Station, TX, USA;(3) Present address: Quelle AG, Database Marketing/OR, D-90762 Fürth, Germany;(4) Present address: Department of Biology, University of Rochester, 14627 Rochester, NY, USA |