February 1st to 5th 2016
Olhão, Portugal
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Do shorter bills alter the foraging strategy of red knots Calidris canutus canutus?

Scientific Exhibition
Biodiversity Effects
Thursday, February 4, 2016 -
17:30 to 19:30

Jewell, M.A. 1 van Gils, J.A. 2 Meissner, W. 3 Alves, J.A. 4 Piersma, T. 5

11. NIOZ Marine Ecology 2. University of Gda?sk 3. University of Aveiro
2NIOZ Marine Ecology
3Avian Ecophysiology Unit, Department of Vertebrate Ecology and Zoology, University of Gda?sk
4Center for Environmental and Marine Studies, Universities of Aveiro
51. Chair in Global Flyway Ecology at University of Groningen 2. NIOZ Marine Ecology

Red knots, Calidris canutus canutus, may be harbingers of Arctic climate change to the mudflats of Mauritania. Decades of morphological data indicate that red knots are shrinking in size, a universal response to climate change effects. Shrinkage of bill lengths, specifically, may cause red knots to shift foraging strategies once they reach Banc d’Arguin, Mauritania. The following scientific exhibition describes the behavioural experimental set up we will construct in Banc d’Arguin to establish whether shrinking bill lengths impact red knots’ foraging ability. We also discuss how this shift in foraging behaviour may trigger a trophic cascade.
climate change, trophic cascades, predator prey interactions, morphological shrinkage

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