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Article Dans Une Revue The Condor Année : 1989

Holocene record of the Antarctic shag (Notocarbo bransfieldensis) in Fuegian waters

Résumé

The Antarctic Shag can be discriminated from its congeners by five osteological characters. Using these characters, we were able to identify bones of this species in five shell middens located in southern Fuego-Patagonia. The temporal distribution of these elements extends from historical times (280 YBP) to the middle Holocene (6,100 YBP). These extra-limital birds may have reached Fuegian waters through chance events, by postbreeding dispersal, or as vagrants from a yet undiscovered Fuegian colony. We discuss the implication of these and other findings on the specific status of the Antarctic Shag and its sympatry with the Imperial Shag. The current designation of the Antarctic Shag is proposed as Notocarbo bransfieldensis (Friedmann 1945).
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Dates et versions

hal-02099290 , version 1 (17-07-2019)

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  • HAL Id : hal-02099290 , version 1

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Douglas Siegel-Causey, Christine Lefevre. Holocene record of the Antarctic shag (Notocarbo bransfieldensis) in Fuegian waters. The Condor, 1989, 91 (2), pp.408-415. ⟨hal-02099290⟩

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