A FEW REFERENCES
Bastardas-Boada, A. (2002). Biological and linguistic diversity: Transdisciplinary explorations for a socioecology of languages. Diverscite langues, (7), online.
Blythe, J. & Brown, R. M. (Eds). (2004). Maintaining the Links. Language, Identity and the Land. Procceedings of the 7th Conference of the Foundation for Endangered Languages, Broome, Australia. Bath, UK: Foundation for Endangered Languages.
Borrini-Feyerabend, G., Macdonald, K. & Maffi, L. (2004). History, culture, and conservation. Policy Matters, 13 (special issue).
Collard, I.F. & Foley, R.A. (2002). Latitudinal patterns and environmental determinants of recent human cultural diversity: Do humans follow biogeographical rules? Evolutionary Ecology Research, 4, 371-383.
Harmon, D. (1996). Losing species, losing languages: connections between biological and linguistic diversity. Southwest Journal of Linguistics, 15, 89-108.
Krauss, M. (1996). Linguistics and biology: threatened linguistic and biological diversity compared. In CLS 32, Papers from the Parasession on Theory and Data in Linguistics. Chicago Linguistic Society, 69-75.
Lechevrel, N. (2009). The Intertwined Histories of Ecolinguistics and Ecological Approaches of Languages: Historical and Theoretical Aspects of a Research Paradigm. Symposium on Ecolinguistics. University of Southern Denmark.
Maffi, L. & Woodley, E. (Eds). (2010). Biocultural Diversity Conservation: A Global Sourcebook. London: Routledge.
Maffi, Luisa (1996). Language, Knowledge and the Environment: Threats to the World’s Biocultural Diversity. Terralingua Newsletter 2, December 1996.
Maffi, L. (Ed.) (2001). On Biocultural Diversity: linking language, knowledge, and the environment. Washington: Smithsonian Institution Press.
Maffi, L. (2005). Linguistic, cultural, and biological diversity. Annual Review of Anthropology, 34, 599-617. Millennium Ecosystem Assessment (2005) Ecosystems and Human Well-Being: Synthesis Report. Washington, DC: Island Press.
Muhlhausler, P. (2001). Ecolinguistics, Linguistic Diversity, Ecological Diversity. In L. Maffi (Ed.), On Biological Diversity: linking language, knowledge, and the environment. Washington: Smithsonian Institution.
Fill, A., & Muhlhausler, P. (Eds.). (2006). Ecolinguistics Reader: Language, Ecology and Environment. Continuum International Publishing Group.
Rapport, D. J. (2007). Healthy ecosystems: An evolving paradigm. In Pretty, J. et al (Eds.) The Sage Handbook of Society and Environment. London: Sage.
Silver, S., & Miller, W. R. (2000). American Indian Languages: Cultural and Social Contexts. University of Arizona Press. (helpful to consider language without the nation-state construct and critique of Duchene et al above)
Skutnabb-Kangas, T. (2000). Linguistic genocide in education – or worldwide diversity and human rights. Mahwah, NJ : Lawrence Erlbaum.
Skutnabb-Kangas, Tove, Maffi, Luisa, & Harmon, David (2006). Sharing a world of difference. The earth’s linguistic, cultural and biological diversity. Terra Lingua, WWF & UNESCO. Online document: http://www.terralingua.org/blog/2003/07/16/sharing/
Smith, E. A. (2001). On the Coevolution of Cultural, Linguistic, and Biological Diversity. In L. Maffi (Ed.), On Biocultural Diversity: linking language, knowledge, and the environment. Washington: Smithsonian Institution. (another notion of language too)
For a full updated bibliography, you might want to consult Tove Skutnabb-Kangas' bibliography here: