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The size selection of clams by African black oystercatchers and kelp gulls
Ward, D. (1991). The size selection of clams by African black oystercatchers and kelp gulls. Ecology 72(2): 513-522
In: Ecology. Ecological Society of America: Brooklyn, NY. ISSN 0012-9658, more
Peer reviewed article  

Available in Author 

Keywords
    Clams; Gulls; Selective feeding; Marine

Author  Top 
  • Ward, D.

Abstract
    The preferences of Haematopus moquini and Larus dominicanus for different size classes of the sand-burrowing bivalve Donax serra were examined. Gulls took only large clams, regardless of the avaiilability of the different size classes, a preference ascribed to the high energy expenditure required for gulls to open clam shells. Oystercatchers, which open bivalve shells relatively easily, took both small and large clams, even when large clams were abundant.

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