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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 (
Original languageEnglish
Pages (from-to)2244-2254
Issue number9
StatePublished - 2006

ID: 312648