From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird
To date, early life demographic traits have been poorly studied compare to adult traits in the vast majority of animal species. Young individuals are usually more difficult to study due to their small size, their mobile behavior and the high mortality rate that characterizes their life stage. Howeve...
Main Author: | |
---|---|
Other Authors: | , , |
Format: | Thesis |
Language: | French |
Published: |
2017
|
Subjects: | |
Online Access: | http://www.theses.fr/2017LAROS003/document |
id |
fttriple:oai:gotriple.eu:10670/1.qcr3uu |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:10670/1.qcr3uu 2023-05-15T16:00:55+02:00 From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird De l’envol à la première reproduction : aspects écologiques et évolutifs des traits d’histoire de vie de jeunes oiseaux marins longévifs Fay, Rémi La Rochelle Barbraud, Christophe Weimerskirch, Henri 2017-02-21 http://www.theses.fr/2017LAROS003/document fr fre 10670/1.qcr3uu http://www.theses.fr/2017LAROS003/document other Theses.fr Albatros hurleur Diomedea exulans Oiseaux marins Traits d’histoire de vie Stratégie d’histoire de vie Dynamique des populations Survie Reproduction Âge de première reproduction Qualité individuelle Hétérogénéité individuelle Wandering albatross Seabirds Life-history traits Life-history strategy Population dynamics Survival Age of first reproduction Individual quality Individual heterogeneity envir psy Thesis https://vocabularies.coar-repositories.org/resource_types/c_46ec/ 2017 fttriple 2023-01-22T17:55:03Z To date, early life demographic traits have been poorly studied compare to adult traits in the vast majority of animal species. Young individuals are usually more difficult to study due to their small size, their mobile behavior and the high mortality rate that characterizes their life stage. However, the full understanding of the demographic processes requires the integration of all life stages. This lack of knowledge toward early-life stages is particularly detrimental for long lived species. Indeed for these species, the immature component represents a substantial part of the total reproductive value, having a high influence on the whole population dynamics. Hence, such limitations affect the accuracy of population projections in the context of global change and more generally our understanding of life history trait evolution. In order to fill in this gap, this PhD project focuses on early life demographic traits in a seabird species : the wandering albatross Diomedea exulans. In this very long-lived species, the immature period lasts around 10 years. Based on long-term individual monitoring and capture-recapture analyses, we estimated early-life survival and the access to reproduction according to age and sex. We also investigates the respective effects of extrinsic (e.g. climate, fisheries) and intrinsic factors (e.g. density dependence, parental effects) on these parameters. Many relationships between early-life vital rates and environmental variables have been described. From a theoretical perspective, we tested several predictions such as the canalization of life-history traits and the existence of different life-history strategies within a population. In this work, special attention was paid to demographic variations at the individual scale. Our study showed that vital rates of individuals of the same age and sex could be very different. We have linked early-life demographic traits with subsequent adult performances and identified some causes of these individual variations. Jusqu’à aujourd’hui, les ... Thesis Diomedea exulans Wandering Albatross Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
French |
topic |
Albatros hurleur Diomedea exulans Oiseaux marins Traits d’histoire de vie Stratégie d’histoire de vie Dynamique des populations Survie Reproduction Âge de première reproduction Qualité individuelle Hétérogénéité individuelle Wandering albatross Seabirds Life-history traits Life-history strategy Population dynamics Survival Age of first reproduction Individual quality Individual heterogeneity envir psy |
spellingShingle |
Albatros hurleur Diomedea exulans Oiseaux marins Traits d’histoire de vie Stratégie d’histoire de vie Dynamique des populations Survie Reproduction Âge de première reproduction Qualité individuelle Hétérogénéité individuelle Wandering albatross Seabirds Life-history traits Life-history strategy Population dynamics Survival Age of first reproduction Individual quality Individual heterogeneity envir psy Fay, Rémi From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
topic_facet |
Albatros hurleur Diomedea exulans Oiseaux marins Traits d’histoire de vie Stratégie d’histoire de vie Dynamique des populations Survie Reproduction Âge de première reproduction Qualité individuelle Hétérogénéité individuelle Wandering albatross Seabirds Life-history traits Life-history strategy Population dynamics Survival Age of first reproduction Individual quality Individual heterogeneity envir psy |
description |
To date, early life demographic traits have been poorly studied compare to adult traits in the vast majority of animal species. Young individuals are usually more difficult to study due to their small size, their mobile behavior and the high mortality rate that characterizes their life stage. However, the full understanding of the demographic processes requires the integration of all life stages. This lack of knowledge toward early-life stages is particularly detrimental for long lived species. Indeed for these species, the immature component represents a substantial part of the total reproductive value, having a high influence on the whole population dynamics. Hence, such limitations affect the accuracy of population projections in the context of global change and more generally our understanding of life history trait evolution. In order to fill in this gap, this PhD project focuses on early life demographic traits in a seabird species : the wandering albatross Diomedea exulans. In this very long-lived species, the immature period lasts around 10 years. Based on long-term individual monitoring and capture-recapture analyses, we estimated early-life survival and the access to reproduction according to age and sex. We also investigates the respective effects of extrinsic (e.g. climate, fisheries) and intrinsic factors (e.g. density dependence, parental effects) on these parameters. Many relationships between early-life vital rates and environmental variables have been described. From a theoretical perspective, we tested several predictions such as the canalization of life-history traits and the existence of different life-history strategies within a population. In this work, special attention was paid to demographic variations at the individual scale. Our study showed that vital rates of individuals of the same age and sex could be very different. We have linked early-life demographic traits with subsequent adult performances and identified some causes of these individual variations. Jusqu’à aujourd’hui, les ... |
author2 |
La Rochelle Barbraud, Christophe Weimerskirch, Henri |
format |
Thesis |
author |
Fay, Rémi |
author_facet |
Fay, Rémi |
author_sort |
Fay, Rémi |
title |
From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
title_short |
From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
title_full |
From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
title_fullStr |
From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
title_full_unstemmed |
From fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
title_sort |
from fledgling to the first reproduction : ecological and evolutionary aspect of life-history traits of young long-lived seabird |
publishDate |
2017 |
url |
http://www.theses.fr/2017LAROS003/document |
genre |
Diomedea exulans Wandering Albatross |
genre_facet |
Diomedea exulans Wandering Albatross |
op_source |
Theses.fr |
op_relation |
10670/1.qcr3uu http://www.theses.fr/2017LAROS003/document |
op_rights |
other |
_version_ |
1766396933794955264 |