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R Jm Crawford
R Jm Crawford
University of Cape Town
Fishery
Ecology
Biology
Population
Population size
6
Papers
114
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Estimates of numbers of kelp gulls and Kerguelen and Antarctic terns breeding at the Prince Edward Islands, 1996/1997–2008/2009
2009
African Journal of Marine Science
Pa Whittington
R Jm Crawford
Bm Dyer
Peter G. Ryan
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Recent trends in numbers of Crozet shags breeding at the Prince Edward Islands
2009
African Journal of Marine Science
R Jm Crawford
Peter G. Ryan
Bm Dyer
L Upfold
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Citations (4)
Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
2009
African Journal of Marine Science
Peter G. Ryan
M Gw Jones
Bm Dyer
L Upfold
R Jm Crawford
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Citations (41)
Recent trends in numbers of four species of penguins at the Prince Edward Islands
2009
African Journal of Marine Science
R Jm Crawford
Pa Whittington
L Upfold
Peter G. Ryan
Samantha L. Petersen
Bm Dyer
J. Cooper
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Citations (38)
A tale of two islands: contrasting fortunes for Subantarctic skuas at the Prince Edward Islands
2009
African Journal of Marine Science
Peter G. Ryan
Pa Whittington
R Jm Crawford
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Decrease in Numbers of the Eastern Rockhopper Penguin Eudyptes Chrysocome Filholi at Marion Island, 1994/95–2002/03
2003
African Journal of Marine Science
R Jm Crawford
J. Cooper
Bm Dyer
M. D. Greyling
N Tw Klages
Deon Nel
Jeanne L. Nel
S. L. Petersen
A. C. Wolfaardt
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Citations (18)
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