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...

Full description

Bibliographic Details
Main Authors: Klaassen, R.H.G., Nolet, B.A., Bankert, D.
Format: Article in Journal/Newspaper
Language:English
Published: 2006
Subjects:
bayesian foragers
bewicks swans
correlated random-walk
depression
energy gain
field
heterogeneity
information
patchy environment
searching behavior
Tundra
Online Access:https://research.wur.nl/en/publications/movement-of-foraging-tundra-swans-explained-by-spatial-pattern-in
https://doi.org/10.1890/0012-9658(2006)87[2244:MOFTSE]2.0.CO;2
Description
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 (

Similar Items