• Aldhous, P. (1993). Tropical deforestation: not just a problem in Amazonia. Science 259, 1390.
  • Brockington, D., Igoe, J. & Schmidt-Soltau, K. (2006). Conservation, human rights, and poverty reduction. Conserv. Biol. 20, 250252.
  • Caswell, H. (2000). Prospective and retrospective perturbation analysis: their roles in conservation biology. Ecology 81, 619627.
  • Chan, K.M.A., Pringle, R.M., Ranganathan, J., Boggs, C.L., Chan, Y.L., Ehrlich, P.R., Haff, P.K., Heller, N.E., Al-Khafaji, K. & Macmynowski, D.P. (2007). When agendas collide: human welfare and biological conservation. Conserv. Biol. 21, 5968.
  • Global Sustainable Tourism Council (2011). Criteria. Available at (accessed February 6, 2011).
  • Goodman, S.M. & Gonzales, P.C. (1990). The birds of Mt. Isarog National Park southern Luzon Philippines with particular reference to altitudinal distribution. Fieldiana Zool. 60, 139.
  • He, G., Chen, X., Liu, W., Bearer, S., Zhou, S., Cheng, L.Y., Zhang, H., Ouyang, Z. & Liu, J. (2008). Distribution of economic benefits from ecotourism: a case study of Wolong Nature Reserve for giant pandas in China. Environ. Mgmt. 42, 10171025.
  • Honey, M. (2008). Ecotourism and sustainable development: Who owns paradise? Washington, DC: Island Press.
  • Karp, D. & Guevara, R. (2011). Conversational noise reduction as a win-win for ecotourists and rain forest birds in Peru. Biotropica 43, 122130.
  • King, D.A. & Stewart, W.P. (1996). Ecotourism and commodification: protecting people and places. Biodivers. Conserv. 5, 293305.
  • Kirkby, C., Giudice-Grenados, R., Day, B., Turner, K., Velarde-Andrade, L.M., Dueñas-Dueñas, A., Lara-Rivas, J.C. & Yu, D.W. (2011). The market triumph of ecotourism: an economic investigation of the private and social benefits of competing land uses in the Peruvian Amazon. PLoS One 5, e13015.
  • Kiss, A. (2004). Is community-based ecotourism a good use of biodiversity conservation funds? Trends Ecol. Evol. 19, 232237.
  • National Science Foundation. (2011). Integrative graduate education and research traineeship. Available at (accessed March 25, 2011).
  • Rainforest Alliance. (2011a). Mohonk Agreement: proposal for an international certification program for sustainable tourism and ecotourism. Available at (accessed February 2, 2011).
  • Rainforest Alliance (2011b). Verification services for tourism businesses. Available at (accessed February 5, 2011).
  • Sanabria, R. (2002). Accreditation: certifying the certifiers. In Ecotourism and certification: setting standards in practice: 325356. Honey, M. (Ed.). Washington, DC: Island Press.
  • Sekercioglu, C.H. (2002). Impacts of bird watching on human and avian communities. Environ. Conserv. 29, 282289.
  • Sheppard, D.J., Moehrenschlager, A., McPherson, J.M. & Mason, J.J. (2010). Ten years of adaptive community-governed conservation: evaluating biodiversity protection and poverty alleviation in a West African hippopotamus reserve. Environ. Conserv. 37, 270282.
  • Skole, D. & Tucker, C. (1993). Tropical deforestation and habitat fragmentation in the Amazon: satellite data from 1978 to1988. Science 260, 19051910.
  • Terborgh, J. (1999). Requiem for nature. Washington, DC: Island Press.
  • Williams, R., Bain, D.E., Smith, J.C. & Lusseau, D. (2009). Effects of vessels on behaviour patterns of individual southern resident killer whales Orcinus orca. Endangered Species Res. 6, 199209.