1. Applied Biodiversity Science Program and Departments of Recreation, Park and Tourism Sciences, and Anthropology, Texas A&M University, College Station, Texas 77843-2261, USA;
2. Recreation, Park, and Tourism Management, and Anthropology, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
3. Applied Biodiversity Science Program and Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, Texas 77843-2258, USA