Abstract
Although interspecific competition is of major importance in ecological and evolutionary theory1, there has been no critical study of whether indirect estimates of niche overlap accurately reflect the effects of competition on fitness as indicated by reproductive output. I report here that competition from jackdaws, Corvus monedula, significantly reduced reproductive output of magpies, Pica pica, due to starvation of nestlings and a high rate of nest predation. The competition coefficient as estimated from these direct effects (α = 0.43) was only slightly smaller than predicted by niche overlap values based on morphological similarity, habitat distribution and feeding technique (α = 0.58), or food composition (α = 0.54).
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References
Abrams, P. Theor. Pop. Biol. 8, 356–375 (1975).
Whittaker, R. H. & Fairbanks, C. W. Ecology 39, 46–65 (1958).
King, J. R. in Avian Energetics (ed. Paynter, R. A.) Publ. Nuttall Ornith. Club No 15 (1974).
Kendeigh, S. C. in Granivorous Birds in Ecosystems (eds Pinowski, J. & Kendeigh, S. C.) (Cambridge University Press, 1977).
Levins, R. Evolution in Changing Environments: Some Theoretical Explorations (Princeton University Press, 1968).
Schoener, T. W. Am. Nat. 108, 332–340 (1974).
Hurlbert, S. H. Ecology 59, 67–77 (1978).
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Högstedt, G. Prediction and test of the effects of interspecific competition. Nature 283, 64–66 (1980). https://doi.org/10.1038/283064a0
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DOI: https://doi.org/10.1038/283064a0
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