TRACING NUTRIENT ALLOCATION TO REPRODUCTION INBARROW’S GOLDENEYE

Barrows Goldeneye (Bucephala islandica) Science Article 6

abstract

Naturally occurring stable isotopes in foodwebs can be used to determine the relative contributions of endogenous and exogenous nutrients to avian eggs in cases where birds move between isotopically distinct biomes or habitats to breed. We measured 13C and 15N values in somatic muscle tissues and eggs of Barrow’s goldeneye (Bucephala islandica) together with those isotope values in amphipods from wetlands used by birds breeding on theChilcotin Plateau in central British Columbia, Canada

KEITH A. HOBSON et al., JOURNAL OF WILDLIFE MANAGEMENT 69(3):1221-1228; 2005

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