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Changes in Prey
Populations (recent appear at top)
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Duffy and Wissel. 1988. Models of fish
school size in relation to environmental productivity.
Ecological Modeling. 40: 201-211 |
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Duffy, D. C. 1988. Predator-prey
interactions between common terns and butterfish. Ornis
Scandinavica. 19: 160-163 |
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Duffy, D.C., R.P. Wilson, and M.P.
Wilson. 1987. Spatial and temporal change in the diet of the Cape
cormorant off the coast of Southern Africa. The Condor. 89:
830-834
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Duffy, D.C., Wilson and Berruti. 1985. Anchovy in the diets of Dyer
Island Penguins: a tests of two models of anchovy distribution. South African Journal of Science.
81: 552-554 |
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Ricklefs, Duffy and Coulter. 1984.
Weight gain of blue-footed booby chicks: an indication of marine
resources. Ornis Scandinavica. 15: 162-166 |
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Duffy. 1983.
The foraging ecology of Peruvian seabirds. Auk. 100: 800-810 |
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Duffy, D. C. 1983.
Environmental uncertainty and commercial fishing: effects on
Peruvian Guano birds.
Biological Conservation. 26: 227-238
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Duffy, D.C. and L.J.B. Laurenson. 1983. Pellets of
Cape cormorants as indicators of diet. Condor. 85: 305-307
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