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The plants and birds of Stoltenhoff and Middle Islands, Tristan da Cunha

Published online by Cambridge University Press:  29 June 2010

Peter G. Ryan ,
Norman Glass  and
Robert A. Ronconi
Peter G. Ryan
Affiliation:
Percy FitzPatrick Institute, University of Cape Town, Rondebosch 7701, South Africa (pryan31@gmail.com)
Norman Glass
Affiliation:
Tristan Conservation Department, Tristan da Cunha, South Atlantic Ocean
Robert A. Ronconi
Affiliation:
Department of Biology, Dalhousie University, 1355 Oxford Street, Halifax, Nova Scotia B3H 4J1, Canada
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Abstract

Few scientific observations have been made at Middle and Stoltenhoff Islands, small (ca 10 ha) islands off the north coast of Nightingale Island, Tristan da Cunha. We recorded vascular plants and numbers of breeding birds on both islands in December 2009. Despite being smaller and more isolated than Middle Island, Stoltenhoff supported more species of plants, including Cotula moseleyi, previously thought to be endemic to Nightingale Island. Only one alien plant was found, Sonchus oleraceus. Populations of two albatross species apparently have decreased by at least half over the last 40 years, presumably due to mortality at sea. Stoltenhoff probably has the least disturbed habitat in the Tristan group, and strict controls are needed to prevent accidental introductions by anyone going ashore.

Type
Notes
Information
Polar Record , Volume 47 , Issue 1 , January 2011 , pp. 86 - 89
Copyright
Copyright © Cambridge University Press 2010

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References

BirdLife International. 2009. Threatened birds of the world. URL: www.birdlife.org (accessed February 2010).Google Scholar
Cuthbert, R.J., Ryan, P.G., Cooper, J., and Hilton, G.M.. 2003. Demography and population trends of the Atlantic yellow-nosed albatross. Thalassarche chlororhynchos. Condor 105: 439–452.Google Scholar
Cuthbert, R., Cooper, J., Burle, M.-H., Glass, C.J., Glass, J.P., Glass, T., Hilton, G.M., Sommer, E., Wanless, R.M., and Ryan, P.G.. 2009. Population trends and conservation status of the northern rockhopper penguin Eudyptes moseleyi at Tristan da Cunha and Gough Island. Bird Conservation International 19: 109–120.Google Scholar
Fraser, M.W., Ryan, P.G., Dean, W.R.J., Briggs, D.J., and Moloney, C.L.. 1994. Biology of the Tristan thrush Nesocichla eremita. Ostrich 65: 14–25.Google Scholar
Groves, E.W. 1981. Vascular plant collections from the Tristan da Cunha group of islands. Bulletin of the British Museum (Natural History): Botany series 8: 333–420.Google Scholar
Hagen, Y. 1952. The birds of Tristan da Cunha. Results of the Norwegian scientific expedition to Tristan da Cunha, 1937–1938. Osle: Det Norske Videnskaps-Akademi 20: 1–248.Google Scholar
Richardson, M.E. 1984. Aspects of the ornithology of the Tristan da Cunha group and Gough Island, 1972–1974. Cormorant 12: 123–201.Google Scholar
Roux, J.P., Ryan, P.G., Milton, S.J., and Moloney, C.L.. 1992. Vegetation and checklist of Inaccessible Island, central South Atlantic Ocean, with notes on Nightingale Island. Bothalia 22: 93–109.CrossRefGoogle Scholar
Ryan, P.G. (editor). 2007. Field guide to the animals and plants of Tristan da Cunha and Gough Island. Newbury: Pisces Publications.Google Scholar
Ryan, P.G. and Ronconi, R.A.. submitted. The Tristan thrush Nesocichla eremita as seabird predator. ArdeaGoogle Scholar
Ryan, P.G., Whittington, P.A., and Crawford, R.J.M.. 2009. A tale of two islands: contrasting fortunes for subantarctic skuas at the Prince Edward Islands. African Journal of Marine Science 31: 431–437.Google Scholar