The shape and tempo of language evolution
Greenhill SJ, Atkinson QD, Meade A, & Gray RD. (2010) The shape and tempo of language evolution. Proceedings of the Royal Society, B.
There are approximately 7000 languages spoken in the world today. This diversity reflects the legacy of thousands of years of cultural evolution. How far back we can trace this history depends largely on the rate at which the different components of language evolve. Rates of lexical evolution are widely thought to impose an upper limit of 6-10 thousand years on reliably identifying language relationships. In contrast, it has been argued that certain structural elements of language are much more stable. Just as biologists use highly conserved genes to uncover the deepest branches in the tree of life, highly stable linguistic features hold the promise of identifying deep relationships between the world’s languages. Here we present the first global network of languages based on this typological information. We evaluate the relative evolutionary rates of both typological and lexical features in the Austronesian and Indo-European language families. The first indications are that typological features evolve at similar rates to basic vocabulary but their evolution is substantially less treelike. Our results suggest that, whilst rates of vocabulary change are correlated between the two language families, the rates of evolution of typological features and structural sub-types show no consistent relationship across families.
Sorry, there are no files attached to this publication yet
- The shape and tempo of language evolution
- How Accurate and Robust Are the Phylogenetic Estimates of Austronesian Language Relationships?
- How old is the Indo-European language family?
- Language-tree divergence times support the Anatolian theory of Indo-European origin
- Does horizontal transmission invalidate cultural phylogenies?
- Curious Parallels and Curious Connections—Phylogenetic Thinking in Biology and historical linguistics
- Language Phylogenies Reveal Expansion Pulses and Pauses in Pacific Settlement
- From words to dates: Water into wine, mathemagic or phylogenetic inference?
- On the shape and fabric of human history
- Testing Population Dispersal Hypotheses: Pacific Settlement, Phylogenetic Trees, and Austronesian Languages