{"id":{"repo_id":"sherbrooke","oai_identifier":"oai:usherbrooke.scholaris.ca:11143/5089"},"canonical_url":"https://search.dev.ndltd.org/etd/sherbrooke/oai:usherbrooke.scholaris.ca:11143/5089","repository":{"repo_id":"sherbrooke","name":"Université de Sherbrooke","base_url":"https://usherbrooke.scholaris.ca/server/oai/request"},"display":{"title":"Dynamique comparée des populations de bouquetin des alpes (Capra ibex ibex) et implication pour le suivi de ces populations","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Largo, Émilie"],"institution":"Université de Sherbrooke","degree_name":"Ph. D.","degree_level":"Doctorat","degree_discipline":"Biologie","degree_department":null,"school":null,"contributors":[],"advisors":["Festa-Bianchet, Marco","Gaillard, Jean-Michel"],"committee_chairs":[],"committee_members":[],"year":2008,"date_issued":"2008","date_published":"2008","updated_at":"2026-07-27T21:07:47Z","subjects":["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"],"languages":["fr"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/11143/5089","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Festa-Bianchet, Marco","Gaillard, Jean-Michel"]},{"key":"dc:creator","label":"Author","values":["Largo, Émilie"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2014-05-16T16:04:05Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2014-05-16T16:04:05Z"]},{"key":"dc:date.issued","label":"Date","values":["2008"]},{"key":"dc:publisher","label":"Institution","values":["Université de Sherbrooke"]},{"key":"dc:type","label":"Dc Type","values":["Thèse de doctorat"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biologie"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Doctorat"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph. D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Université de Sherbrooke"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["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"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["fr"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/11143/5089"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["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.","Nous avons étudié la dynamique de neuf populations de Bouquetin des Alpes (Capra ibex ibex) dans cinq espaces protégés. Nous avons trouvé un fort effet de l'âge sur les paramètres démographiques avec en particulier une diminution de la survie après 10-12 ans. Nous avons aussi montré une forte variabilité de la reproduction des vieilles femelles entre les populations. Contrairement à ce qui était attendu pour une espèce très dimorphique, la survie des individus des deux sexes était similaire, sauf pour les plus âgés. La sévérité hivernale a un effet négatif sur la survie des vieux individus mais pas sur la reproduction et sur la survie des plus jeunes. Nous concluons que les bouquetins adoptent une stratégie d'histoire de vie très conservatrice par rapport aux autres ongulés étudiés jusque-là. D'un point de vue appliqué, nous avons aussi montré que sous certaines conditions, les comptages sont un outil satisfaisant pour suivre les tendances des populations de bouquetins."]},{"key":"dc:title","label":"Title","values":["Dynamique comparée des populations de bouquetin des alpes (Capra ibex ibex) et implication pour le suivi de ces populations"]}]}],"canonical_facts":{"dc:contributor.advisor":["Festa-Bianchet, Marco","Gaillard, Jean-Michel"],"dc:creator":["Largo, Émilie"],"dc:date.accessioned":["2014-05-16T16:04:05Z"],"dc:date.available":["2014-05-16T16:04:05Z"],"dc:date.issued":["2008"],"dc:description.abstract":["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.","Nous avons étudié la dynamique de neuf populations de Bouquetin des Alpes (Capra ibex ibex) dans cinq espaces protégés. Nous avons trouvé un fort effet de l'âge sur les paramètres démographiques avec en particulier une diminution de la survie après 10-12 ans. Nous avons aussi montré une forte variabilité de la reproduction des vieilles femelles entre les populations. Contrairement à ce qui était attendu pour une espèce très dimorphique, la survie des individus des deux sexes était similaire, sauf pour les plus âgés. La sévérité hivernale a un effet négatif sur la survie des vieux individus mais pas sur la reproduction et sur la survie des plus jeunes. Nous concluons que les bouquetins adoptent une stratégie d'histoire de vie très conservatrice par rapport aux autres ongulés étudiés jusque-là. D'un point de vue appliqué, nous avons aussi montré que sous certaines conditions, les comptages sont un outil satisfaisant pour suivre les tendances des populations de bouquetins."],"dc:identifier.uri":["https://hdl.handle.net/11143/5089"],"dc:language.iso":["fr"],"dc:publisher":["Université de Sherbrooke"],"dc:subject":["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"],"dc:title":["Dynamique comparée des populations de bouquetin des alpes (Capra ibex ibex) et implication pour le suivi de ces populations"],"dc:type":["Thèse de doctorat"],"thesis:degree_discipline":["Biologie"],"thesis:degree_level":["Doctorat"],"thesis:degree_name":["Ph. D."],"thesis:institution_name":["Université de Sherbrooke"]},"updated_at":"2026-07-27T21:07:47Z"}