Skua and Penguin - Predator and Prey

Table des matières

1. Introduction; 2. The study area. Ross Island and the Cape Bird penguin colonies; 3. The range of foods available to the skuas at Cape Bird during the breeding season; 4. The biomass of penguin eggs and chicks on the Northern Colony; 5. Factors of penguin biology that constrain or assist skua predation; 6. Description of scavenging and predatory behaviour of skuas and the defensive behaviour of penguins; 7. The diversity and intensity of skua foraging behaviour on the penguin colony; 8. The amount of food taken by the skuas from the penguin colony; 9. The costs and returns of foraging at the colony and at sea; 10. Immediate impact of the contestants on each other; 11. Appreciating the penguins; 12. Associating together. The longer term implications; 13. Synthesis; Appendices; References; Index.

Résumé

A detailed study of the feeding ecology and breeding biology of two associated Antarctic birds which provides evidence that the two species occur together as a consequence of limited breeding space rather than because of a distinct predator-prey relationship.

Détails du produit

• Auteurs: Euan Young, Euan (University of Auckland) Young
• Collaboration: L. C. Bliss (Editeur), A. C. Clarke (Editeur)
• Edition: Cambridge University Press ELT
• Langues: Anglais
• Format d'édition: Livre de poche
• Sortie: 22.08.2005
• EAN: 9780521018135
• ISBN: 978-0-521-01813-5
• Pages: 472
• Thème: Studies in Polar Research
• Catégories: Littérature spécialisée > Nature, technique > Nature: général, ouvrages de référence; Livres de conseils > Nature; Sciences naturelles, médecine, informatique, technique > Biologie > Général, dictionnaires