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Dispersal of southern elephant seals (Mirounga leonina L.) marked at Macquarie Island

Citation

van den Hoff, J, Dispersal of southern elephant seals (Mirounga leonina L.) marked at Macquarie Island, Wildlife Research, 28, (4) pp. 413-418. ISSN 1035-3712 (2001) [Refereed Article]

DOI: doi:10.1071/WR00065

Abstract

Southern elephant seals marked at Macquarie Island disperse to distant locations where they are sometimes seen during their moult and, for juveniles, a mid-year haul-out period (July - August). Most (87%) of these resighted seals were within 1000 km of Macquarie Island, and most commonly at Campbell Island (700 km to the north-east). The sex and age classes most likely to disperse there were males less than two years old. Male elephant seals of all ages were resighted significantly more often than females, the ratio being 2: 1 (P > 0.05). Migration duration tended to increase with the seals' age but migration distance was underestimated from resight observations when compared with known telemetry records. Emigration from the Macquarie Island population appears limited. From the resight effort at Campbell Island during 1995 the maximum proportion of the juvenile population from Macquarie Island to haul-out at Campbell Island was in the order of 0.0053.

Item Details

Item Type:Refereed Article
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Wildlife and Habitat Management
Objective Division:Environment
Objective Group:Ecosystem Assessment and Management
Objective Field:Ecosystem Assessment and Management of Antarctic and Sub-Antarctic Environments
Author:van den Hoff, J (Mr John van den Hoff)
ID Code:22841
Year Published:2001
Web of Science® Times Cited:11
Deposited By:Zoology
Deposited On:2001-08-01
Last Modified:2011-08-03
Downloads:0

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