New Zealand Journal of Botany abstracts

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Long-distance pollen transport over the southern Tasman Sea: evidence from Macquarie Island

M. R. SALAS

Department of Geography, Monash University
Clayton, Victoria, 3168, Australia

AbstractNumerous exotic pollen and spore types occur in Holocene lake deposits on Macquarie Island. Most are considered to be derived from sources in the south-east Australian region. Myrtaceae pollen, which probably includes both Eucalyptus and Metrosideros, accounts for over 40% of the total exotic counts for 2 cores. Podocar-paceae, Phyllocladus, Casuarina, and Pomaderris are also present in significant proportions. Single records for Dacrydium cupressinum and Ascarina lucida, and the absence of Nothofagus 'fusca' suggest that New Zealand pollen sources are relatively poorly represented. This find emphasises the need for caution when assessing the nature of the exotic pollen rain at sites on mainland New Zealand and surrounding islands.

Keywordslong-distance dispersal; pollen; paly-nology; Holocene; Macquarie Island; south-eastern Australia; Tasmania; New Zealand

Received 5 January 1983
New Zealand Journal of Botany, 1983, Vol. 21 : 285-292
0028-825X/83/2103-0285S2.50/0 © Crown copyright 1983

PDF file of entire paper: medium quality (1500K); (scanned from paper original: notes about this process)

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