Nesting success in Redshank Tringa totanus breeding on coastal meadows and the importance of habitat features used as perches by avian predators
Aims To investigate if predation on Redshank nests was affected by habitat characteristics at a local scale.
Methods We examined survival rates of Redshank nests on coastal meadows on the Baltic island of Gotland, Sweden, over two breeding seasons. We analysed nest survival rates in relation to several habitat characteristics that may benefit predators searching for nests. We examined existing studies concerning predation rates on wader nests in relation to edges and habitat features potentially used by avian predators.
Results We found no significant effects of distance to habitat edge or to nearest potential lookout for avian predators or to shoreline. Abundance of Lapwings Vanellus vanellus, an aggressive species with active nest-defence, did not have any significant effect on nest survival rate, nor did vegetation concealment of nests. Nest survival rates were significantly different between years and lower later in the season.
Conclusions There is only weak support for general effects on wader nest predation rates of proximity to edges and features used by avian predators. Simple mechanical management actions such as removal of trees and bushes on coastal meadows may not directly, and by itself, result in higher reproductive success of waders. Further understanding is needed of the behaviour of predators and the composition of the predator community in different landscapes in order to increase the efficiency of management actions to remove threats to vulnerable species on coastal meadows.
- ISSN: 0006-3657
Sölvegatan 37, Lund
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Sölvegatan 37, Lund
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Doctoral students and postdocs
PhD students, main supervisor
- Cecilia Hjort
- Lovisa Nilsson, Centre for Environmental and Climate Research
- William Sidemo Holm, Centre for Environmental and Climate Research
- Torben Wittver, Centre for Environmental and Climate Research
PhD students, assistant supervisor
- Carsten Kost
- Johanna Yourstone
- Ivetete Raices Cruz, Centre for Environmental and Climate Research
- Hampus Nilsson, Centre for Environmental and Climate Research
- Sandra Goded, University of Santiago de Compostela
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- Biodiversity and Ecosystem Services in a Changing Climate (BECC). A strategic cross-disciplinary research environment at Lund and Gothenburg Universities. Focus on the consequences of climate change for biodiversity and ecosystem services. Coordinator.
- Multifunctional Agriculture: Harnessing Biodiversity for Sustaining Agricultural Production and Ecosystems (SAPES). A strong research environment funded by Formas. Focus on how agricultural land-use and management affect multiple ecosystem services. Coordinator