Movement of foraging Tundra Swans explained by spatial pattern in cryptic food densities
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...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2006
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| Subjects: | |
| Online Access: | https://pure.knaw.nl/portal/en/publications/3e1a70bd-246e-42bf-a1d2-2617be3f8081 https://doi.org/10.1890/0012-9658(2006)87[2244:MOFTSE]2.0.CO;2 https://hdl.handle.net/20.500.11755/3e1a70bd-246e-42bf-a1d2-2617be3f8081 https://pure.knaw.nl/ws/files/479172/Klaassen_ea_3804.pdf |
| Summary: | 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 ( 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 ( |
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