Long-term Habitat Trends in Barren-ground Caribou
Global and local climate patterns may affect barren-ground caribou (Rangifer tarandus groenlandicus) populations. I predicted global climate changes to be correlated with periods of population decline, and local changes to be more pronounced on the habitat of caribou with a declining population. In...
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ftdatacite:10.20381/ruor-6423 2023-05-15T15:04:15+02:00 Long-term Habitat Trends in Barren-ground Caribou White, Lori 2013 https://dx.doi.org/10.20381/ruor-6423 http://www.ruor.uottawa.ca/handle/10393/23752 en eng Université d'Ottawa / University of Ottawa climate INDVI NDVI Northwest Territories phenology population Rangifer tarandus groenlandicus caribou remote sensing Text Thesis article-journal ScholarlyArticle 2013 ftdatacite https://doi.org/10.20381/ruor-6423 2021-11-05T12:55:41Z Global and local climate patterns may affect barren-ground caribou (Rangifer tarandus groenlandicus) populations. I predicted global climate changes to be correlated with periods of population decline, and local changes to be more pronounced on the habitat of caribou with a declining population. In chapter 1, the Arctic Oscillation (AO), changes in normalized difference vegetation index and phenology were used as measures of global and local climate. In chapter 2 environmental variables and caribou presence points were used to build Maxent habitat models. There was no consistent correlation with the positive AO phase and periods of population decline, or phenology trends and the habitat of caribou with a declining population. Maxent models underestimated the amount of suitable habitat spatially and failed to model suitable habitat temporally. This thesis is the first to look at a range of density-independent variables over a long time period and model suitable habitat for multiple herds. Thesis Arctic Northwest Territories Rangifer tarandus DataCite Metadata Store (German National Library of Science and Technology) Arctic Northwest Territories |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
climate INDVI NDVI Northwest Territories phenology population Rangifer tarandus groenlandicus caribou remote sensing |
spellingShingle |
climate INDVI NDVI Northwest Territories phenology population Rangifer tarandus groenlandicus caribou remote sensing White, Lori Long-term Habitat Trends in Barren-ground Caribou |
topic_facet |
climate INDVI NDVI Northwest Territories phenology population Rangifer tarandus groenlandicus caribou remote sensing |
description |
Global and local climate patterns may affect barren-ground caribou (Rangifer tarandus groenlandicus) populations. I predicted global climate changes to be correlated with periods of population decline, and local changes to be more pronounced on the habitat of caribou with a declining population. In chapter 1, the Arctic Oscillation (AO), changes in normalized difference vegetation index and phenology were used as measures of global and local climate. In chapter 2 environmental variables and caribou presence points were used to build Maxent habitat models. There was no consistent correlation with the positive AO phase and periods of population decline, or phenology trends and the habitat of caribou with a declining population. Maxent models underestimated the amount of suitable habitat spatially and failed to model suitable habitat temporally. This thesis is the first to look at a range of density-independent variables over a long time period and model suitable habitat for multiple herds. |
format |
Thesis |
author |
White, Lori |
author_facet |
White, Lori |
author_sort |
White, Lori |
title |
Long-term Habitat Trends in Barren-ground Caribou |
title_short |
Long-term Habitat Trends in Barren-ground Caribou |
title_full |
Long-term Habitat Trends in Barren-ground Caribou |
title_fullStr |
Long-term Habitat Trends in Barren-ground Caribou |
title_full_unstemmed |
Long-term Habitat Trends in Barren-ground Caribou |
title_sort |
long-term habitat trends in barren-ground caribou |
publisher |
Université d'Ottawa / University of Ottawa |
publishDate |
2013 |
url |
https://dx.doi.org/10.20381/ruor-6423 http://www.ruor.uottawa.ca/handle/10393/23752 |
geographic |
Arctic Northwest Territories |
geographic_facet |
Arctic Northwest Territories |
genre |
Arctic Northwest Territories Rangifer tarandus |
genre_facet |
Arctic Northwest Territories Rangifer tarandus |
op_doi |
https://doi.org/10.20381/ruor-6423 |
_version_ |
1766336046847492096 |