Seabird-fisheries Interactions in South CarolinaLisa WickliffeUSGS SC Cooperative Fish & Wildlife Research UnitUpstate ForeverSeabirds•Defined as those birds living or making a living in marine environments•Equally at home in water, air, and land which requires unique adaptations•Great diversity•Relative to land birds, seabirds have– Long life (20-60 yrs.)– Deferred maturity (delayed up to 10 yrs.)– Small clutch size– Extended chick-rearing periods (up to 6 months)(Schreiber & Burger 2002)Seabirds• Orders–Pelecaniformes–Charadriiformes–Procellariiformes–Sphenisciformes–Ciconiiformes (excluded)acsedu.comOrder 1: Pelecaniformes•Found worldwide•All have throat pouch (gular) used for catching and storing fish•Pelicans, frigatebirds, commerants, •Colonial nesting, young are altricialwww.birdingnz.co.nzOrder 2: Charadriiformes•Main focus:– Family Laridae: gulls, terns and skimmers •Shorebirds (plovers, snipes, sandpipers, oystercatchers)-excludedOrder 3: Procellariiformes•Albatrosses, Petrels, Shearwaters•Almost exclusively pelagic (feed in open ocean)•Show great philopatry•Breed on predator free islands•1 egg; monogamous• Vulnerablewww.birdingnz.co.nz
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