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  4. Chicks of the great spotted cuckoo may turn brood parasitism into mutualism by producing a foul-smelling secretion that repels predators
 
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Chicks of the great spotted cuckoo may turn brood parasitism into mutualism by producing a foul-smelling secretion that repels predators

Auteur(s)
Röder, Gregory 
Cours de médecine 
Canestrari, Daniela
Bolopo, Diana
Marcos, José M.
Villard, Neil 
Institut de biologie 
Baglione, Vittorio
Turlings, Ted 
Institut de biologie 
Date de parution
2014-4
In
Journal of Chemical Ecology
Vol.
4
No
40
De la page
320
A la page
324
Mots-clés
  • great spotted cuckoo
  • clamator glandarius
  • carrion crows
  • corvus corone corone
  • repellency
  • predators
  • brood parasitism
  • mutualism
  • chemical defense
  • birds
  • adaptations
  • cowbirds
  • hosts
  • great spotted cuckoo

  • clamator glandarius

  • carrion crows

  • corvus corone corone

  • repellency

  • predators

  • brood parasitism

  • mutualism

  • chemical defense

  • birds

  • adaptations

  • cowbirds

  • hosts

Résumé
The great spotted cuckoo (Clamator glandarius) is an important brood parasite of carrion crows (Corvus corone corone) in northern Spain. We recently found that, unlike what is commonly known for cuckoo-host interactions, the great spotted cuckoo has no negative impact on average crow fitness in this region. The explanation for this surprising effect is a repulsive secretion that the cuckoo chicks produce when they are harassed and that may protect the brood against predation. Here, we provide details on the chemical composition of the cuckoo secretion, as well as conclusive evidence that the dominating volatile chemicals in the secretion are highly repellent to model species representative of common predators of the crows. These results support the notion that, in this particular system, the production of a repulsive secretion by the cuckoo chicks has turned a normally parasitic interaction into a mutualistic one.
Identifiants
https://libra.unine.ch/handle/123456789/22692
_
10.1007/s10886-014-0426-0
Type de publication
journal article
Dossier(s) à télécharger
 main article: s10886-014-0426-0.pdf (213.98 KB)
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