CURWOOD: So if the sea does swallow the island up, it will take with it an English dialect that exists nowhere else. And many of the seven thousand or so languages spoken round the world are also under threat. A new report from the World Wildlife Fund finds that where linguistic diversity declines, biological diversity often falls as well. Jonathan Loh is a Research Associate of the Zoological Society of London and a study co-author, and he says that is why it's important to conserve both biological and cultural diversity. Welcome to Living on Earth, Jonathan. LOH: Thank you. CURWOOD: Comparing language, and species diversity seems, well, a bit of an unusual pairing. How did you get into this? LOH: Well, I am a conservation biologist in my background, and I got interested in the problem of endangered languages. And it really started out as a little bit of a hobby, but the more I looked into it, the more fascinated I became because I realized that, in fact, theres some extraordinary parallels between biodiversity and linguistic diversity. CURWOOD: So how did you go about comparing the diversity of language with the diversity of species? LOH: Biologists use a system called the IUCN red list for assessing the threat status of different species around the world, and we applied exactly the same criteria that a biologist would use to assess the status of a species in order to determine how threatened a language is. CURWOOD: IUCN, by the way, is the International Union for the Conservation of Nature. So, in sum, what did your study find? Baka woman, a speaker of a Niger-Congo language, gathering plants in the forest of La trinationale de la Sangha. Central African Republic (Photo: Martin Harvey / WWF-Canon) LOH: Some of the drivers that are driving the extinction of biodiversity, and the decline of biodiversitysuch as increasing global population, increasing consumption of natural resources, increasing globalization and so onare applicable to languages as well, and those basic drivers are having a similar effect on linguistic diversity as biodiversity. You can look at the evolution of languages in a similar way to the evolution of species, and languages evolve over time. Of course, languages evolve much faster than a biological species, but nevertheless, you can trace closely related languages back to common ancestors. And then there are also remarkable parallels in the ecology, if youd like, of languages and if you look at the distribution of the world's languages on a map, you'll see that the patterns of diversity of languages is not evenly spread around the world. Theres a much greater density of languages spoken in the tropics and as you move away from the tropics towards the poles, there are fewer and fewer languages spoken, which is exactly the same pattern that you see with species diversity. CURWOOD: Talk to me about where you see the parallel declines and the lifestyle of the humans who are losing their languages. The diversity of languages (black dots) strongly correlates with areas of high plant diversity (darker colors). (Image: Stepp, JR e al. 2004. Development of a GIS for Global Biocultural Diversity. Policy Matters, 13: 267-271.) LOH: One of the interesting findings was that where a species goes extinctbecause the population of the species declines away to nothinga language doesn't go extinct because the population of speakers declines away to nothing, but usually because the speakers shift from their mother tongue to a second language, usually a more dominant one, and increasingly this means that the thousands of indigenous languages spoken around the world are being replaced by one of a dozen or so dominant world languages like English, Spanish, Mandarin Chinese. The places which are losing languages most rapidly are the Americas and Australia. About three-quarters of the languages of the Americas are under the threat of extinction, and in Australia, the situation, if anything, is more critical where ninety-five percent of the indigenous aboriginal Australian languages are threatened with extinction and declining extremely rapidly. CURWOOD: What is your research tell us about the value of these less dominant indigenous cultures? Australias languages are the most severely endangered in the world (92%). (Image: Loh and Harmon, 2014. Biocultural Diversity: threatened species, endangered languages. WWF Netherlands. Zeist, The Netherlands.) LOH: The cultures have evolved in a particular environmental context, so they have an extraordinary amount of traditional ecological knowledgeknowledge of the local species, plants, animals, the medicinal uses of them, the migration patterns of animals behaviorthis vast wealth of knowledge, and that knowledge is encoded in their indigenous language. And sadly, when children stop learning the language, they also stop acquiring that traditional knowledge. So theres tens of thousands of years of knowledge acquired over the course of human evolution about different environments of the world, but that's just, kind of, the useful aspects of the traditional culturebecause of course the enormous cultural diversity that there is worldwide embodies more than just the knowledge of how to survive. It includes food, music, clothing, everything that we might consider being as part of culture has evolved in different ways, in different parts of the world, and as with species, when a language is lost, it's gone forever. You can never get it back. CURWOOD: So Jonathan, if both biological and cultural diversity are important to preserve, what should we do, how do we move forward? Nenets reindeer herdswoman, a speaker of a Uralic language, eating reindeer meat, Knin Peninsula, Russia, Arctic. (Photo: Staffan Widstrand / WWF) LOH: Ive met now a number of linguists who are working on endangered languages and trying to record them and transcribe them and write down grammars and dictionaries, and it struck me how useful it would be if biologists and linguists could work together on this, for a couple of reasons. Theres this extraordinary wealth of traditional ecological knowledge that's bound up with a lot of the world's indigenous languages, and I think it would be really useful to biologists in understanding how to manage natural ecosystems. And linguists often dont have the knowledge of natural history thats necessary in order to be able to record an endangered language because so much of the lexicon is tied up with names of species or types of ecosystems, and linguists dont have the training in that. And if we can recognize that culture and nature are inextricably interlinked, then working on a biocultural diversity as a whole, as a subject, would be a more fruitful way of looking at conservation. Jonathan Loh is a Research Associate at the Zoological Society of London and co-author of this study. (Photo: courtesy of Jonathan Loh) CURWOOD: Jonathan Loh is a Research Associate of the Zoological Society of London. Thanks so much for taking the time with us today, Jonathan. LOH: It's my pleasure.
CURWOOD: So if the sea does swallow the island up, it will take with it an English dialect that exists nowhere else. And many of the seven thousand or so languages spoken round the world are also under threat. A new report from the World Wildlife Fund finds that where linguistic diversity declines, biological diversity often falls as well. Jonathan Loh is a Research Associate of the Zoological Society of London and a study co-author, and he says that is why it's important to conserve both biological and cultural diversity. Welcome to Living on Earth, Jonathan. LOH: Thank you. CURWOOD: Comparing language, and species diversity seems, well, a bit of an unusual pairing. How did you get into this? LOH: Well, I am a conservation biologist in my background, and I got interested in the problem of endangered languages. And it really started out as a little bit of a hobby, but the more I looked into it, the more fascinated I became because I realized that, in fact, theres some extraordinary parallels between biodiversity and linguistic diversity. CURWOOD: So how did you go about comparing the diversity of language with the diversity of species? LOH: Biologists use a system called the IUCN red list for assessing the threat status of different species around the world, and we applied exactly the same criteria that a biologist would use to assess the status of a species in order to determine how threatened a language is. CURWOOD: IUCN, by the way, is the International Union for the Conservation of Nature. So, in sum, what did your study find? Baka woman, a speaker of a Niger-Congo language, gathering plants in the forest of La trinationale de la Sangha. Central African Republic (Photo: Martin Harvey / WWF-Canon) LOH: Some of the drivers that are driving the extinction of biodiversity, and the decline of biodiversitysuch as increasing global population, increasing consumption of natural resources, increasing globalization and so onare applicable to languages as well, and those basic drivers are having a similar effect on linguistic diversity as biodiversity. You can look at the evolution of languages in a similar way to the evolution of species, and languages evolve over time. Of course, languages evolve much faster than a biological species, but nevertheless, you can trace closely related languages back to common ancestors. And then there are also remarkable parallels in the ecology, if youd like, of languages and if you look at the distribution of the world's languages on a map, you'll see that the patterns of diversity of languages is not evenly spread around the world. Theres a much greater density of languages spoken in the tropics and as you move away from the tropics towards the poles, there are fewer and fewer languages spoken, which is exactly the same pattern that you see with species diversity. CURWOOD: Talk to me about where you see the parallel declines and the lifestyle of the humans who are losing their languages. The diversity of languages (black dots) strongly correlates with areas of high plant diversity (darker colors). (Image: Stepp, JR e al. 2004. Development of a GIS for Global Biocultural Diversity. Policy Matters, 13: 267-271.) LOH: One of the interesting findings was that where a species goes extinctbecause the population of the species declines away to nothinga language doesn't go extinct because the population of speakers declines away to nothing, but usually because the speakers shift from their mother tongue to a second language, usually a more dominant one, and increasingly this means that the thousands of indigenous languages spoken around the world are being replaced by one of a dozen or so dominant world languages like English, Spanish, Mandarin Chinese. The places which are losing languages most rapidly are the Americas and Australia. About three-quarters of the languages of the Americas are under the threat of extinction, and in Australia, the situation, if anything, is more critical where ninety-five percent of the indigenous aboriginal Australian languages are threatened with extinction and declining extremely rapidly. CURWOOD: What is your research tell us about the value of these less dominant indigenous cultures? Australias languages are the most severely endangered in the world (92%). (Image: Loh and Harmon, 2014. Biocultural Diversity: threatened species, endangered languages. WWF Netherlands. Zeist, The Netherlands.) LOH: The cultures have evolved in a particular environmental context, so they have an extraordinary amount of traditional ecological knowledgeknowledge of the local species, plants, animals, the medicinal uses of them, the migration patterns of animals behaviorthis vast wealth of knowledge, and that knowledge is encoded in their indigenous language. And sadly, when children stop learning the language, they also stop acquiring that traditional knowledge. So theres tens of thousands of years of knowledge acquired over the course of human evolution about different environments of the world, but that's just, kind of, the useful aspects of the traditional culturebecause of course the enormous cultural diversity that there is worldwide embodies more than just the knowledge of how to survive. It includes food, music, clothing, everything that we might consider being as part of culture has evolved in different ways, in different parts of the world, and as with species, when a language is lost, it's gone forever. You can never get it back. CURWOOD: So Jonathan, if both biological and cultural diversity are important to preserve, what should we do, how do we move forward? Nenets reindeer herdswoman, a speaker of a Uralic language, eating reindeer meat, Knin Peninsula, Russia, Arctic. (Photo: Staffan Widstrand / WWF) LOH: Ive met now a number of linguists who are working on endangered languages and trying to record them and transcribe them and write down grammars and dictionaries, and it struck me how useful it would be if biologists and linguists could work together on this, for a couple of reasons. Theres this extraordinary wealth of traditional ecological knowledge that's bound up with a lot of the world's indigenous languages, and I think it would be really useful to biologists in understanding how to manage natural ecosystems. And linguists often dont have the knowledge of natural history thats necessary in order to be able to record an endangered language because so much of the lexicon is tied up with names of species or types of ecosystems, and linguists dont have the training in that. And if we can recognize that culture and nature are inextricably interlinked, then working on a biocultural diversity as a whole, as a subject, would be a more fruitful way of looking at conservation. Jonathan Loh is a Research Associate at the Zoological Society of London and co-author of this study. (Photo: courtesy of Jonathan Loh) CURWOOD: Jonathan Loh is a Research Associate of the Zoological Society of London. Thanks so much for taking the time with us today, Jonathan. LOH: It's my pleasure.
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