SPECIES RECOGNITION AS A POSSIBLE FUNCTION FOR VARIATIONS IN POSITION AND SHAPE OF THE SEXUALLY DIMORPHIC TUSKS OF MESOPLODON WHALES

Colin D. MacLeod

doi:10.1554/0014-3820(2000)054[2171:SRAAPF]2.0.CO;2

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Colin D. MacLeod¹

¹14 Boclair Crescent, Bearsden, Glasgow, G61 2AG, United Kingdom macleod_c@colloquium.co.uk

Abstract

Beaked whales of the genus Mesoplodon are characterized by the presence of a single pair of sexually dimorphic tusks. Variation in the position and shape of these tusks was examined in four sympatric species and was found to be consistent with the hypothesis that these differences may have evolved to aid species recognition between sympatric and otherwise morphologically similar species of this genus.

Editor: J. Mallet

Citation Download Citation

Colin D. MacLeod "SPECIES RECOGNITION AS A POSSIBLE FUNCTION FOR VARIATIONS IN POSITION AND SHAPE OF THE SEXUALLY DIMORPHIC TUSKS OF MESOPLODON WHALES," Evolution 54(6), 2171-2173, (1 December 2000). https://doi.org/10.1554/0014-3820(2000)054[2171:SRAAPF]2.0.CO;2

Received: 8 November 1999; Accepted: 1 May 2000; Published: 1 December 2000