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Shifting prey availability can lead to altered species interactions, indicated by variation in the dietary niche breadth and position of species within an assemblage. On the Newfoundland coast, annual inshore spawning migration of the dominant forage fish, Capelin Mallotus villosus, provides an excellent opportunity to investigate the influence of varying prey availability on dietary niche breadth...
During the breeding season, seabirds may use many behavioural strategies to reduce the time and energy spent searching for patchily distributed prey. Seabirds breeding at a large colony on the northeast Newfoundland coast (Funk Island), primarily common murres, Uria aalge, and northern gannets, Morus bassanus, predominantly feed on capelin, Mallotus villosus. Within foraging ranges, high-abundance...
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