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1 November 2003 A POTENTIAL TOOL FOR SWIFT FOX (VULPES VELOX) CONSERVATION: INDIVIDUALITY OF LONG-RANGE BARKING SEQUENCES
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Abstract

Vocal individuality has been found in a number canid species. This natural variation can have applications in several aspects of species conservation, from behavioral studies to estimating population density or abundance. The swift fox (Vulpes velox) is a North American canid listed as endangered in Canada and extirpated, endangered, or threatened in parts of the United States. The barking sequence is a long-range vocalization in the species' vocal repertoire. It consists of a series of barks and is most common during the mating season. We analyzed barking sequences recorded in a standardized context from 20 captive individuals (3 females and 17 males) housed in large, single-pair enclosures at a swift fox breeding facility. Using a discriminant function analysis with 7 temporal and spectral variables measured on barking sequences, we were able to correctly classify 99% of sequences to the correct individual. The most important discriminating variable was the mean spacing of barks in a barking sequence. Potential applications of such vocal individuality are discussed.

Safi K. Darden, Torben Dabelsteen, and Simon Boel Pedersen "A POTENTIAL TOOL FOR SWIFT FOX (VULPES VELOX) CONSERVATION: INDIVIDUALITY OF LONG-RANGE BARKING SEQUENCES," Journal of Mammalogy 84(4), 1417-1427, (1 November 2003). https://doi.org/10.1644/BEM-031
Accepted: 1 December 2002; Published: 1 November 2003
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