The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces).
Several vertebrate populations have to face indirect and direct human pressures. Our aim here is to show how these pressures influence ungulate population dynamics beyond environmental factors commonly accounted for, such as habitat quality or climate. We present two case studies : Mediterranean moufl...
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Other Authors: | , , , , |
Format: | Doctoral or Postdoctoral Thesis |
Language: | French |
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HAL CCSD
2005
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Subjects: | |
Online Access: | https://tel.archives-ouvertes.fr/tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364/document https://tel.archives-ouvertes.fr/tel-00133364/file/MGThesis.pdf |
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ftccsdartic:oai:HAL:tel-00133364v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
French |
topic |
moose ungulates Norway hunting population dynamics life history traits envrionmental seasonality monitoring Ovis gmelini musimon × Ovis sp mouflon élan Alces alces ongulés Caroux-Espinouse Norvège chasse dynamique des populations traits d'histoire de vie saisonnalité environnementale méthodes de suivis [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
spellingShingle |
moose ungulates Norway hunting population dynamics life history traits envrionmental seasonality monitoring Ovis gmelini musimon × Ovis sp mouflon élan Alces alces ongulés Caroux-Espinouse Norvège chasse dynamique des populations traits d'histoire de vie saisonnalité environnementale méthodes de suivis [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis Garel, Mathieu The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). |
topic_facet |
moose ungulates Norway hunting population dynamics life history traits envrionmental seasonality monitoring Ovis gmelini musimon × Ovis sp mouflon élan Alces alces ongulés Caroux-Espinouse Norvège chasse dynamique des populations traits d'histoire de vie saisonnalité environnementale méthodes de suivis [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
description |
Several vertebrate populations have to face indirect and direct human pressures. Our aim here is to show how these pressures influence ungulate population dynamics beyond environmental factors commonly accounted for, such as habitat quality or climate. We present two case studies : Mediterranean mouflon (Ovis gmelini musimon × Ovis sp.) in France and moose (Alces alces) in Norway. We analyzed a long term study (30 years) of a mouflon population located in southern France (Hérault). Our study on moose was based on a transversal and comparative analysis of several populations inhabiting contrasted environments in Norway along a latitudinal gradient. Our study on mouflon highlighted the advantages and limits of commonly used survey methods for ungulate population monitoring. We then showed that the dynamics of this population was influenced by (1) habitat closure, resulting from the reduction of pastoral activity, leading to the use of sub-optimal resources by mouflon, (2) selective hunting on trophy males, (3) the recent history of mouflon from which our population originated, (4) summer drought. These processes influence the dynamics of the mouflon through (1) a decrease in phenotypic quality as measured by body mass and trophy size (processes 1 and 2), (2) variation in reproductive output of females (processes 3 and 4), (3) and variation in lamb summer survival (process 4). In moose, we showed that sexual size dimorphism (SSD) increases with increasing environmental seasonality, probably caused by higher resource quality when the growing season was short and intense. Selective hunting against males also shapes SSD by decreasing the proportion of adult males in the population. A low proportion of adult males could lead to a higher proportion of young males involved in reproduction, which in turn may have a negative impact on their body growth. Based on two cases studies at different spatial scales, our results highlighted the existence of specific biological characteristics in harvested populations. In addition to the ... |
author2 |
Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS) Université Claude Bernard - Lyon I Jean-Michel GAILLARD/Daniel MAILLARD(gaillard@biomserv.univ-lyon1.fr/d.maillard@oncfs.gouv.fr) |
format |
Doctoral or Postdoctoral Thesis |
author |
Garel, Mathieu |
author_facet |
Garel, Mathieu |
author_sort |
Garel, Mathieu |
title |
The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). |
title_short |
The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). |
title_full |
The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). |
title_fullStr |
The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). |
title_full_unstemmed |
The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). |
title_sort |
effects of hunting and environmental constraints on ungulates population dynamics. case study in mediterranean mouflon (ovis gmelini musimon × ovis sp.) and norwegian moose (alces alces). |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://tel.archives-ouvertes.fr/tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364/document https://tel.archives-ouvertes.fr/tel-00133364/file/MGThesis.pdf |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Alces alces Élan |
genre_facet |
Alces alces Élan |
op_source |
https://tel.archives-ouvertes.fr/tel-00133364 Interactions entre organismes. Université Claude Bernard - Lyon I, 2005. Français |
op_relation |
tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364/document https://tel.archives-ouvertes.fr/tel-00133364/file/MGThesis.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766254387585351680 |
spelling |
ftccsdartic:oai:HAL:tel-00133364v1 2023-05-15T13:12:51+02:00 The effects of hunting and environmental constraints on ungulates population dynamics. Case study in mediterranean Mouflon (Ovis gmelini musimon × Ovis sp.) and norwegian Moose (Alces alces). Conséquences de la chasse et des contraintes environnementales sur la démographie des populations d'ongulés. L'exemple du mouflon méditerranéen (Ovis gmelini musimon × Ovis sp.) en France et de l'élan (Alces alces) en Norvège. Garel, Mathieu Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS) Université Claude Bernard - Lyon I Jean-Michel GAILLARD/Daniel MAILLARD(gaillard@biomserv.univ-lyon1.fr/d.maillard@oncfs.gouv.fr) 2005-03-15 https://tel.archives-ouvertes.fr/tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364/document https://tel.archives-ouvertes.fr/tel-00133364/file/MGThesis.pdf fr fre HAL CCSD tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364 https://tel.archives-ouvertes.fr/tel-00133364/document https://tel.archives-ouvertes.fr/tel-00133364/file/MGThesis.pdf info:eu-repo/semantics/OpenAccess https://tel.archives-ouvertes.fr/tel-00133364 Interactions entre organismes. Université Claude Bernard - Lyon I, 2005. Français moose ungulates Norway hunting population dynamics life history traits envrionmental seasonality monitoring Ovis gmelini musimon × Ovis sp mouflon élan Alces alces ongulés Caroux-Espinouse Norvège chasse dynamique des populations traits d'histoire de vie saisonnalité environnementale méthodes de suivis [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis info:eu-repo/semantics/doctoralThesis Theses 2005 ftccsdartic 2021-07-25T00:04:04Z Several vertebrate populations have to face indirect and direct human pressures. Our aim here is to show how these pressures influence ungulate population dynamics beyond environmental factors commonly accounted for, such as habitat quality or climate. We present two case studies : Mediterranean mouflon (Ovis gmelini musimon × Ovis sp.) in France and moose (Alces alces) in Norway. We analyzed a long term study (30 years) of a mouflon population located in southern France (Hérault). Our study on moose was based on a transversal and comparative analysis of several populations inhabiting contrasted environments in Norway along a latitudinal gradient. Our study on mouflon highlighted the advantages and limits of commonly used survey methods for ungulate population monitoring. We then showed that the dynamics of this population was influenced by (1) habitat closure, resulting from the reduction of pastoral activity, leading to the use of sub-optimal resources by mouflon, (2) selective hunting on trophy males, (3) the recent history of mouflon from which our population originated, (4) summer drought. These processes influence the dynamics of the mouflon through (1) a decrease in phenotypic quality as measured by body mass and trophy size (processes 1 and 2), (2) variation in reproductive output of females (processes 3 and 4), (3) and variation in lamb summer survival (process 4). In moose, we showed that sexual size dimorphism (SSD) increases with increasing environmental seasonality, probably caused by higher resource quality when the growing season was short and intense. Selective hunting against males also shapes SSD by decreasing the proportion of adult males in the population. A low proportion of adult males could lead to a higher proportion of young males involved in reproduction, which in turn may have a negative impact on their body growth. Based on two cases studies at different spatial scales, our results highlighted the existence of specific biological characteristics in harvested populations. In addition to the ... Doctoral or Postdoctoral Thesis Alces alces Élan Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Norway |