1. Department of Biology; Memorial University of Newfoundland; St. John's NL Canada
2. Cooperative Wildlife Research Laboratory; Southern Illinois University; Carbondale IL USA
3. Department of Botany and Zoology; Stellenbosch University; Stellenbosch South Africa
4. Northwest Knowledge Network; University of Idaho; Moscow ID USA
5. Center for Ecology and Department of Zoology; Southern Illinois University; Carbondale IL USA