About eating and not eaten. Vigilance and foraging strategies in wintering Eurasian siskins (Carduelis spinus) = Sobre menjar i no ser menjar: estratègies de vigilància i alimentació en lluers hivernants (Carduelis spinus)
Animals have to eat a certain amount of food every day to survive. Since trophic resources are usually found in exposed locations, animals are in risk of predation while feeding, and face the well known trade-off between predation and starvation risks. Animals may reduce predation risk by scanning...
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| Format: | Doctoral Thesis |
| Language: | English |
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Universitat de Barcelona
2013
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| Online Access: | http://hdl.handle.net/10803/128917 |