作者
Bart A Nolet, Andrea Kölzsch, Michiel Elderenbosch, Arie J van Noordwijk
发表日期
2016/10
期刊
Journal of Applied Ecology
卷号
53
期号
5
页码范围
1413-1421
简介
- With increasing numbers of many herbivorous waterfowl species, often foraging on farmland, the conflict with agriculture has intensified. One popular management tool is to scare birds off the land, often in association with shooting. However, the energy costs of flying are considerably higher than those of resting. Therefore, when birds fly off after a disturbance, they use extra energy that subsequently needs to be compensated.
- We used the white‐fronted goose Anser albifrons, the most common (grass‐eating) goose wintering in western Europe, as a model species. We measured flight durations by high‐frequency accelerometer recordings over 2 × 24 h in nine focal geese that were only incidentally disturbed. We also made direct observations on these days to determine whether the flight durations were reliably recorded. Using both a simple and a more realistic model of the energy balance, we calculated the …
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BA Nolet, A Kölzsch, M Elderenbosch… - Journal of Applied Ecology, 2016