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Annual and diurnal variations in the underwater vocalizations of Weddell seals

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Weddell seal vocalizations were recorded once a fortnight throughout 1984 at a major pupping site near Davis, Antarctica. Few vocalizations were heard between January and June. The number of vocalizations recorded increased from July to a peak in November and early December during the breeding period and then fell off rapidly through December. The increase in the number of seal vocalizations was correlated with a build up in seal numbers but some of the increase may be explained by an increased rate of vocalization by males.

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Green, K., Burton, H.R. Annual and diurnal variations in the underwater vocalizations of Weddell seals. Polar Biol 8, 161–164 (1988).

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  • Diurnal Variation
  • Breeding Period
  • Weddell Seal
  • Seal Number
  • Underwater Vocalization