Alleged morpheme-based alarm calls in the light of biolinguistics. The role of Duality of Patterning in morphology 1 Lluís Barceló-Coblijn Group of Human Evolution and Cognition associated unit of the IFISC (UIB-CSIC), University of Balearic Islands, c. de Valldemossa km 7.5, Palma, 07071, Spain A definition of morpheme is that it designates “the smallest linguistic unit that has semantic meaning” (Ouattara,et al.; 2009). Another definition tells us that “morphemes are parts of a word that correspond with a specific meaning” (Booij & Santen, 1998, p.3; translation ours). Although such definitions can always be tinged or modified to some extent, they are in consonance with most modern linguistic frameworks. It is worth noting that in the process of morpheme creation, the conflation of sound with meaning becomes reality by means of what has traditionally been called duality of patterning (Hockett, 1958), a lexicalization technique which, from discrete meaningless units, builds (sometimes bigger) meaningful units (cf. 1). Although in Hoeckett's original text it is not quite clear where the duality system halts, we defend that, once the system has those resultant units (morphemes), such process can be repeated until words are reached (cf. 2). 1) /v/, /e/, /r/ → # ver # 2) # ver # + #koop# + #en# → verkopen Dutch (particle) (“to sale”) In a recent work Ouattara, Lemasson, & Zuberbühler (2009) have analyzed vocalizations in Campbell's monkeys (Cercopithecus campbelli). Among other suggestive conclusions, the authors affirm that these primates make use, not only of a “simple” alarm call system (similar to that of vervet monkeys – Cercopithecus aethiops), but of an alarm call system, the utterances of which can be modified by a morpheme (cf. Table 1). The authors assume the general above mentioned definition of morpheme (as a component of human languages), and pretend to show that the alleged morpheme of Campbell's monkeys is equivalent to a H. sapiens morpheme. We think that this is a clear misunderstanding of the linguistic concept of morpheme. We also assume that part of such misunderstanding comes from the sometimes loose definition formulated in linguistic studies – good enough until now, since it referred only to human language. Therefore we reconsider its definition in the light of biolinguistics and propose that the concept of morpheme must be considered, at least, in conjunction with the concept of duality of patterning (neglected in the work of Ouattara et al., (2009)), as lexicalization technique. If our claims turn out to be on the right track, further claims about human-like morphemes as structuring units of the calls of Campbell's monkeys cannot be sustained. As a consequence, in order to clarify scientific terminology, it would be better to use the label “morpheme” only in reference to the H. sapiens linguistic system. 1 This work was supported by the HUM2007-64086 grant from the Ministerio de Ciencia e Innovación (Spain). Table 1. Campbell's monkeys alarm call system, Ouattara et al., (2009) Call Possible meanings krak Leopard hok Almost eagle Extended call Krak-oo exclusively Possible meanings Almost any disturbance. crowned Hok-oo Any range of disturbances including: eagle, neighbouring groups, flying squirrel. boom Only in nonpredatory contexts, such as a falling branch or tree, to initiate or halt group travel. Wak-oo Eagles, flying animals, Diana monkey eagle calls, but not neighbour. Moreover, it highlights the evolutionary role of duality of patterning, reinforcing, on the one hand, the impression that H. sapiens is the only representative of the kingdom Animalia endowed with it, and that this could be an argument in favor of its inclusion in the Faculty of Language in the Narrow sense (Rosselló, 2006) put forward by Hauser, Chomsky and Fitch (2002). Finally, we would like to stress that the comparison of H. sapiens morphemes vs. the vocalizations of the Cercopithecus campbelli shows us to which extent the evolutionary paths covered by primates are different, so that it seems unlikely that current primate alarm call systems represent a kind of “frozen” ancillary step of the evolution of the human faculty of language. References: Booij, G. E., & Santen, A. V. (1998). Morfologie: de woordstructuur van het Nederlands. Amsterdam University Press. Hauser, M. D., Chomsky, N., & Fitch, W. T. (2002). The faculty of language: what is it, who has it, and how did it evolve? Science (New York, N.Y.), 298(5598), 1569-79. Hockett, Charles F. (1958). Course in Modern Linguistics (later Printing.). Prentice Hall College Div. Ouattara, K., Lemasson, A., & Zuberbühler, K. (2009). Campbell's monkeys use affixation to alter call meaning. PloS One, 4(11), e7808. Rosselló, Joana. (2006). Combinatorial properties at the roots of language: Duality of patterning and recursion. In Rosselló, Joana & Martín, Jesús (Eds.), The Biolinguistic Turn. Issues on Language and Biology (p. 278). Barcelona: PPU, S.A.