Overabundant Species (recent appear at top)

Overabundance, in the form of both pest species and alien species invading ecosystems, has emerged as a major problem.  Most of my published work has been on, so called, 'pests' and perceived competition, especially between seabirds and fishermen.  My current work is focused on alien invasive species and I expect this will translate into publications on feral cats and other matters, when I can find some free time.

Duffy, D.C. and P. Capece. 2011. Biology and Impacts of Pacific Invasive Species 7. The domestic cat (Felis catus). Pacific Science . 66(2):66 pages (early view means exact page range not available at this time)

Nettleship, D.N. and D.C. Duffy. 1995. Cormorants and human interactions: an introduction. Colonial Waterbirds. 18 (Special Publication 1): 3-6

Duffy, D.C. 1995. Why is the Double-crested Cormorant a Problem? Insights from Cormorant Ecology and Human Sociology. Colonial Waterbirds. 18 (Special Publication 1): 25-32

Nettleship, D.N. and D.C. Duffy. 1995. Epilogue: cormorants, humans and the symposium process. Colonial Waterbirds. 18 (Special Publication 1): 255-256

Duffy, D.C. and Schneider. 1994. Seabird-fishery interactions: a manger's guide. In D. N. Nettleship, J. Burger and M. Gochfeld (Eds.). Seabirds on islands : threats, case studies and action plans : proceedings of the Seabird Specialist Group Workshop held at the XX World Conference of the International Council for Bird Preservation, University of Waikato, Hamilton, New Zealand, 19-20 November 1990.

Butterworth, D.S., D.C. Duffy, P.B. Best and M.O. Bergh. 1988. On the scientific basis for reducing the South African seal population. South African Journal of Science. 84: 179-188

Duffy, D. C., R. P. Wilson, R. E. Wicklefs, S. C. Broni and H. Veldhuis. 1987. Penguins and purse seiners: competition or coexistence? National Geographic. 3(4): 480-488

Duffy, D.C. 1981. Ferals that Failed. Noticias de Galapagos. Pages 21-22

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