Movement of foraging Tundra Swans explained by spatial pattern in cryptic food densities

R.H.G. Klaassen, B.A. Nolet, D. Bankert

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    Samenvatting

    We tested whether Tundra Swans use information on the spatial distribution of cryptic food items (belowground Sago pondweed tubers) to shape their movement paths. In a continuous environment, swans create their own food patches by digging craters, which they exploit in several feeding bouts. Series of short (1 m). Tuber biomass densities showed a positive spatial auto-correlation at a short distance (25 g/m2) and to a more distant patch (at 7–8 m) if the food density in the current patch had been low (3 m) from a low-density patch and a short distance (
    Originele taal-2Engels
    Pagina's (van-tot)2244-2254
    TijdschriftEcology
    Volume87
    Nummer van het tijdschrift9
    DOI's
    StatusGepubliceerd - 2006

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