Linguistic diversity, biodiversity and poverty: Global patterns and priorities

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Many of the world's poorest people live in areas of high linguistic/cultural diversity and high biodiversity. A parallel extinction crises in species and languages means that as the world is becoming less biologically diverse, it is simultaneously becoming culturally and linguistically less diverse as well. The speakers of most of the languages at greatest risk of disappearing over the next few decades are very often the poorest of the poor at the bottom of the economic ladder. Africa, for instance, is home to around 2,092 (30.3%) of the world's languages, about 1/3 of the world's poor, and high levels of biodiversity. The fate of most of the world's linguistic diversity, and by implication its cultural diversity, lies in the hands of a small number of people most vulnerable to pressures of globalization. Although such facts about the global distribution of linguistic diversity, biodiversity, and poverty are well known in the respective disciplines of linguistics, ecology and development economics, their interconnections have not been explored, much less understood. Understanding the complex linkages requires an interdisciplinary approach. Research addressing the interconnections between global biodiversity conservation and poverty has increasingly moved from treating poverty and conservation as separate policy domains to recognizing the need for integrating socioeconomic data into conservation priorities. Meanwhile, various studies have examined at various scales the geographic overlap between regions of high biological and linguistic/cultural diversity. To date, however, no research has examined the interface between datasets linking biological and cultural/linguistic diversity and poverty indicators. This research will fill that gap by using GIS (global information system) mapping to bring together datasets concerning the geographic distribution of languages, species and poverty indicators into a new interdisciplinary framework to identify global 'hotspots', where threatened languages and species overlap to the greatest extent with high levels of poverty. Because much typically needs to be done quickly with too few resources, setting realistic priorities is urgent. Documenting and analyzing these hotspots where endangered languages and species overlap to the greatest extent with high levels of poverty will identify the most critical areas for concerted action by linguists, environmentalists and development agencies. The analysis will focus in particular on Conservation International's 34 hotspots and 5 high biodiversity wilderness areas as strategic sites of high concern to linguists, as well as to the development community and conservation experts. Hotspot identification relies on the IUCN (International Union for the Conservation of Nature) Red List of Threatened Species. These regions display exceptionally high occurrences of endemic species (i.e. those found nowhere else) and loss of at least 70% of natural habitat. They are also home to about 1/3 of the world's total population, and 70% of the world's languages, with up to 72% of them endemic. As many as 60% of all languages in the hotspots and high biodiversity wilderness areas are at risk of extinction due to small numbers of speakers. A total of 2769 languages are spoken by fewer than 10,000 speakers;740 are spoken by fewer than 1,000. Small languages can disappear much faster than larger ones as the resources on which their speakers depend for their livelihoods and transmission of their cultures and languages are damaged by forces such as resource extraction, the spread of mechanized agriculture and unsustainable development projects. The importance of the relationship between such groups and the natural environments they inhabit cannot be overstated for preservation of linguistic and biological diversity. Ultimately the success of conservation initiatives will depend on the engagement of these local communities.