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intra- and interspecific density-dependent effects on growth in helminth parasites of the cormorant, phalacrocorax carbo sinensis.the action of intra- and interspecific competition, mediated by density-dependent effects on growth, was investigated among the 3 helminth species found in the alimentary tract of 104 cormorants, phalacrocorax carbo sinensis. intraspecific density-dependent effects on worm sizes were observed in the abundant nematode contracaecum rudolphii, as shown by a negative correlation between mean worm size and intensity of infection. higher intensities of infection by c. rudolphii were also associated wi ...200212049416
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