The marine algal flora of the Azores: island isolation or Atlantic stepping-stones?

Tittley, Ian; Neto, Ana I.

http://hdl.handle.net/10400.3/2062

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Authors

Tittley, Ian

Neto, Ana I.

Abstract(s)

Ordination analyses was performed on the Chlorophyta, Chromophyta (Phaeophyceae) and Rhodophyta floras of 37 regions of the east and west North Atlantic Ocean from the Arctic to southern Europe, the Azores, Madeira, the Canary and Salvage Islands, and North and South Carolina. Results showed close affinities of the Azores green, brown and red marine algal floras with those of Madeira aand the Canary Islands. Analyses also indicated, particularly for the red algae, trans-Atlantic affinities between the algal floras of Macaronesia and the Carolinas. Low endemicity suggests that the Azores algal flora is not an isolated one. The islands may serve as trans-Atlantic stepping stones in the dispersal distribution of some species but the various elements in the flora suggest the islands to be an Atlantic crossroad.

Description

Proceedings of the 5th International Symposium on Fauna and Flora of Atlantic Islands. Dublin, 24-27 August 2004.

Keywords

Marine Algae Azores North Atlantic Ocean Biogeography Ordinations Analysis

URI

http://hdl.handle.net/10400.3/2062

Citation

Tittley, Ian, Neto, Ana I. (2006). "The marine algal flora of the Azores: island isolation or Atlantic stepping-stones?" In T.J. Hayden, D.A. Murray and J.P. O’Connor (Eds.), Proceedings of the 5th International Symposium on Fauna and Flora of Atlantic Islands, Occasional Publication of the Irish Biogeographical Society, Dublin, 9: 40-54. ISBN 0-9550806-0-6.