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R. J. M. Crawford
Observed names:
R JM Crawford,
R. J. M. CRAWFORD,
R. J.M. Crawford,
R.J.M Crawford,
R.J.M. Crawford
Institution:
University of Cape Town
Observed institutions:
Department of Agriculture, Land Reform and Rural Development,
Scripps Institution of Oceanography,
University of Cape Town,
University of Namibia,
City of Cape Town,
University of California San Diego
show all 6
OpenAlex ID:
A5111883938
Worldwide large-scale fluctuations of sardine and anchovy populations
1999
·
R. A. Schwartzlose
, J. Alheit
, et al.
·
South African Journal of Marine Science
·
553
PDF
World-wide fluctuations of sardine and anchovy stocks: the regime problem
1989
·
D. Lluch-Belda
, R. J. M. Crawford
, et al.
·
South African Journal of Marine Science
·
422
PDF
Sardine and anchovy regime fluctuations of abundance in four regions of the world oceans: a workshop report
1992
·
D. LLUCH‐BELDA
, R. A. SCHWARTZLOSE
, et al.
·
Fisheries Oceanography
·
203
Multiple factors affecting South African anchovy recruitment in the spawning, transport and nursery areas
1998
·
L. Hutchings
, M. Barange
, et al.
·
South African Journal of Marine Science
·
90
PDF
Ecology of the Agulhas Current Region: an Assessment of Biological Responses to Environmental Parameters in the South-west Indian Ocean
1978
·
A. E. F. Heydorn
, N. D. Bang
, et al.
·
Transactions of the Royal Society of South Africa
·
75
African penguins as predators and prey – coping (or not) with change
2001
·
R. J. M. Crawford
, J. H. M. David
, et al.
·
South African Journal of Marine Science
·
73
PDF
Responses of african penguins to regime changes of sardine and anchovy in the Benguela system
1998
·
R. J. M. Crawford
·
South African Journal of Marine Science
·
72
PDF
Comparison of trends in abundance of guano-producing seabirds in Peru and southern Africa
1999
·
R. J. M. Crawford
, J. Jahncke
·
South African Journal of Marine Science
·
68
PDF
Population Dynamics of the African Penguin Spheniscus Demersus at Robben Island, South Africa
1999
·
R. J. M. Crawford
, L. Shannon
, et al.
·
Marine ornithology
·
60
PDF
Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
2009
·
P G Ryan
, M GW Jones
, et al.
·
African Journal of Marine Science
·
58
The 1980s – a decade of change in the Benguela ecosystem
1992
·
L. V. Shannon
, R. J. M. Crawford
, et al.
·
South African Journal of Marine Science
·
58
PDF
Partitioning of a goby resource amongst four avian predators and evidence for altered trophic flow in the pelagic community of an intense, perennial upwelling system
1985
·
R. J. M. Crawford
, R. A. Cruickshank
, et al.
·
South African Journal of Marine Science
·
58
PDF
Distribution, population size and conservation of the Cape gannetMorus capensis
1983
·
R. J. M. Crawford
, P. A. Shelton
, et al.
·
South African Journal of Marine Science
·
58
PDF
Recent trends in numbers of four species of penguins at the Prince Edward Islands
2009
·
R JM Crawford
, P A Whittington
, et al.
·
African Journal of Marine Science
·
53
Responses of fish populations in the Benguela ecosystem to environmental change
1988
·
L. V. Shannon
, R. J. M. Crawford
, et al.
·
ICES Journal of Marine Science
·
53
PDF
Food and population variability in five regions supporting large stocks of anchovy, sardine and horse mackerel
1987
·
R. J. M. Crawford
·
South African Journal of Marine Science
·
52
PDF
Populations of Surface-nesting Seabirds at Marion Island, 1994/95–2002/03
2003
·
R. J. M. Crawford
, J. Cooper
, et al.
·
African Journal of Marine Science
·
50
PDF
Breeding Nomadism in Southern African Seabirds-constraints, Causes and Conservation
1994
·
R. J.M. Crawford
, B. M. Dyer
, et al.
·
Ostrich
·
49
High Mortality of Cape Cormorants (Phalacrocorax capensis) off Western South Africa in 1991 Caused by Pasteurella multocida
1992
·
R. J. M. Crawford
, D. M. Allwright
, et al.
·
Colonial Waterbirds
·
46
Top predators in the Benguela ecosystem — implications of their trophic position
1992
·
R. J. M. Crawford
, L. G. Underhill
, et al.
·
South African Journal of Marine Science
·
45
PDF
Population of the Macaroni PenguinEudyptes Chrysolophusat Marion Island, 1994/95–2002/03, with Information on Breeding and Diet
2003
·
R. J. M. Crawford
, J. Cooper
, et al.
·
African Journal of Marine Science
·
36
PDF
Population Trends of Seabirds Breeding in South Africa's Eastern Cape and the Possible Influence of Anthropogenic and Environmental Change
2009
·
R. J.M. Crawford
, P. Whittington
, et al.
·
Marine ornithology
·
35
PDF
Conserving Surface-nesting Seabirds at the Prince Edward Islands: The Roles of Research, Monitoring and Legislation
2003
·
R. J. M. Crawford
, J. Cooper
·
African Journal of Marine Science
·
33
PDF
Distribution, population size and conservation of the Cape cormorant Phalacrocorax capensis
1982
·
Jim Cooper
, R. K. Brooke
, et al.
·
33
Gentoo penguins as sentinels of climate change at the sub-Antarctic Prince Edward Archipelago, Southern Ocean
2019
·
T. Carpenter-Kling
, J.M. Handley
, et al.
·
Ecological Indicators
·
31
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Works count:
55
Citation count:
2,704
H-index:
26
I10-index:
40
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