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Abstract

I investigated whether scent marking has a territorial function in wild moustached tamarins. I examined the spatial distribution of scent marking within the home ranges of four groups of this neotropical primate and tested predictions from Gorman & Mills' (1984, Journal of Zoology,202, 535–547) model for border and ‘hinterland’ marking. Although home ranges were economically defensible, no evidence was found for increased marking along the territorial boundary or in areas of home range overlap, but there was also no evidence for hinterland marking. Observed distributions of scent marking in exclusively used and overlapping areas of the home range did not deviate from distributions that would be expected if scent marking occurred at random (expectation based both on size of area and on frequency of quadrat occupation), and there was a strong correlation between frequency of quadrat occupation and frequency of scent marking per quadrat. These results indicate that scent marking has no territorial function in moustached tamarins. This is in line with mainly qualitative findings from the majority of other studies on wild marmosets and tamarins. These and other findings on scent marking in moustached tamarins suggest that this behaviour functions mainly in intersexual communication.