Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur
Human disturbances are increasing worldwide and have led to serious and irreversible consequences on natural ecosystems. Northern and Arctic regions may be particularly affected by anthropogenic development because of the high potential for the extraction of natural resources and the poor resilience...
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fttriple:oai:gotriple.eu:http://hdl.handle.net/20.500.11794/38097 2023-05-15T15:18:19+02:00 Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur Simple and cumulative effects of human disturbance on habitat use and survival of migratory caribou Plante, Sabrina Côté, Steeve D. Dussault, Christian Québec-Labrador (Québec et T.-N.-L.) 2020-01-01 https://hdl.handle.net/20.500.11794/38097 fr fre Université Laval http://hdl.handle.net/20.500.11794/38097 other CorpusUL envir geo Thesis https://vocabularies.coar-repositories.org/resource_types/c_46ec/ 2020 fttriple https://doi.org/20.500.11794/38097 2023-01-22T17:42:28Z Human disturbances are increasing worldwide and have led to serious and irreversible consequences on natural ecosystems. Northern and Arctic regions may be particularly affected by anthropogenic development because of the high potential for the extraction of natural resources and the poor resilience of these ecosystems. Migratory caribou (Rangifer tarandus) are at the heart of these concerns raised by anthropogenic development in northern regions because they represent a key species of this ecosystem. Most caribou populations, however, are declining and the generalized and sometimes synchronous nature of these declines suggest that global changes, such as climate change and human development, may be responsible. In northern Québec and Labrador, Canada, migratory caribou of the Rivière-aux-Feuilles (RFH) and Rivière-George herds (RGH) are no exception to the current worldwide trend of decline. These herds have experienced an important decline in the last decades. Simultaneous to these declines, the region has experienced a rapid increase in human development, mainly owing to the mining sector. Yet, the contribution of human disturbance to the herds’ decline remains to be investigated. In this thesis, I assessed the effects of human disturbances on space use and survival of migratory caribou of the RFH and RGH. My work is divided into four objectives: 1) Evaluating human disturbance effects on caribou behavior, by evaluating the effect of linear features on caribou movements and by estimating the zones of influence of infrastructure; 2) Evaluating the cumulative habitat loss associated with the avoidance of infrastructure; 3) Evaluating human disturbance effects on caribou vulnerability to sport hunting; 4) Evaluating human disturbance effects on the mortality risk of caribou and their importance relative to that of natural factors. My results revealed that migratory caribou react to human disturbance at various spatiotemporal scales. At a fine scale, caribou increased their movement rate when crossing roads. One ... Thesis Arctic Climate change Rangifer tarandus Rivière aux Feuilles Unknown Arctic Canada Rivière aux Feuilles ENVELOPE(-70.065,-70.065,58.784,58.784) Rivière George ENVELOPE(-66.165,-66.165,58.817,58.817) |
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language |
French |
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envir geo Plante, Sabrina Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
topic_facet |
envir geo |
description |
Human disturbances are increasing worldwide and have led to serious and irreversible consequences on natural ecosystems. Northern and Arctic regions may be particularly affected by anthropogenic development because of the high potential for the extraction of natural resources and the poor resilience of these ecosystems. Migratory caribou (Rangifer tarandus) are at the heart of these concerns raised by anthropogenic development in northern regions because they represent a key species of this ecosystem. Most caribou populations, however, are declining and the generalized and sometimes synchronous nature of these declines suggest that global changes, such as climate change and human development, may be responsible. In northern Québec and Labrador, Canada, migratory caribou of the Rivière-aux-Feuilles (RFH) and Rivière-George herds (RGH) are no exception to the current worldwide trend of decline. These herds have experienced an important decline in the last decades. Simultaneous to these declines, the region has experienced a rapid increase in human development, mainly owing to the mining sector. Yet, the contribution of human disturbance to the herds’ decline remains to be investigated. In this thesis, I assessed the effects of human disturbances on space use and survival of migratory caribou of the RFH and RGH. My work is divided into four objectives: 1) Evaluating human disturbance effects on caribou behavior, by evaluating the effect of linear features on caribou movements and by estimating the zones of influence of infrastructure; 2) Evaluating the cumulative habitat loss associated with the avoidance of infrastructure; 3) Evaluating human disturbance effects on caribou vulnerability to sport hunting; 4) Evaluating human disturbance effects on the mortality risk of caribou and their importance relative to that of natural factors. My results revealed that migratory caribou react to human disturbance at various spatiotemporal scales. At a fine scale, caribou increased their movement rate when crossing roads. One ... |
author2 |
Côté, Steeve D. Dussault, Christian |
format |
Thesis |
author |
Plante, Sabrina |
author_facet |
Plante, Sabrina |
author_sort |
Plante, Sabrina |
title |
Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
title_short |
Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
title_full |
Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
title_fullStr |
Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
title_full_unstemmed |
Effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
title_sort |
effets simples et cumulés des perturbations humaines sur l'utilisation de l'habitat et la survie du caribou migrateur |
publisher |
Université Laval |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.11794/38097 |
op_coverage |
Québec-Labrador (Québec et T.-N.-L.) |
long_lat |
ENVELOPE(-70.065,-70.065,58.784,58.784) ENVELOPE(-66.165,-66.165,58.817,58.817) |
geographic |
Arctic Canada Rivière aux Feuilles Rivière George |
geographic_facet |
Arctic Canada Rivière aux Feuilles Rivière George |
genre |
Arctic Climate change Rangifer tarandus Rivière aux Feuilles |
genre_facet |
Arctic Climate change Rangifer tarandus Rivière aux Feuilles |
op_source |
CorpusUL |
op_relation |
http://hdl.handle.net/20.500.11794/38097 |
op_rights |
other |
op_doi |
https://doi.org/20.500.11794/38097 |
_version_ |
1766348511947784192 |