Dynamique comparée des populations de bouquetin des alpes (Capra ibex ibex) et implication pour le suivi de ces populations

We studied the dynamic of nine populations of Alpine ibex ( Capra ibex ibex ) in five protected areas. We showed a strong effect of age on demographic parameters, with a marked decrease of survival after 10-12 years of age. We also found a high variability of old females' reproduction between populations. Contrary to what is expected for a highly dimorphic species like ibex, males survived as well as females except for old individuals. Winter harshness had a negative impact on survival of old individuals but not on reproduction and survival of young. We conclude that ibex have evolved a highly conservative life-history tactic compared to other ungulates studied to now. From a management viewpoint we also showed that under some circumstances ground counts might provide reliable estimates of ibex population trends.

Name thesis:degree_name

Ph. D.

Level thesis:degree_level

Doctorat

Discipline thesis:degree_discipline

Biologie

Grantor dc:publisher

Université de Sherbrooke

Year dc:date.issued

2008

Author dc:creator

• Largo, Émilie

Advisors dc:contributor.advisor

• Festa-Bianchet, Marco
• Gaillard, Jean-Michel

• Life history tactics
• Counts
• Multiplication rate
• Climate
• Density dependence
• Capture recapture
• Reproduction
• Senescence
• Survival patterns
• Ungulates
• Capra ibex ibex
• Alpine ibex
• Bouquetin des Alpes
• Ongulés
• Patrons de survie
• Sénescence
• Capture marquage recapture
• Densité dépendance
• Climat
• Taux de multiplication
• Tactiques d'histoire de vie

Language dc:language.iso

fr

Handle dc:identifier.uri

https://hdl.handle.net/11143/5089

OAI identifier oai:identifier

oai:usherbrooke.scholaris.ca:11143/5089