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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ftcanadathes:oai:collectionscanada.gc.ca:OOU.#10393/23752 2023-05-15T15:04:00+02:00 Long-term Habitat Trends in Barren-ground Caribou White, Lori 2013-01-28T20:23:13Z http://hdl.handle.net/10393/23752 en eng http://hdl.handle.net/10393/23752 climate INDVI NDVI Northwest Territories Nunavut phenology population Rangifer tarandus groenlandicus caribou remote sensing Thèse / Thesis 2013 ftcanadathes 2014-06-14T23:47:23Z 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 Nunavut Rangifer tarandus Theses Canada/Thèses Canada (Library and Archives Canada) Arctic Northwest Territories Nunavut |
institution |
Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
climate INDVI NDVI Northwest Territories Nunavut phenology population Rangifer tarandus groenlandicus caribou remote sensing |
spellingShingle |
climate INDVI NDVI Northwest Territories Nunavut 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 Nunavut 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 |
publishDate |
2013 |
url |
http://hdl.handle.net/10393/23752 |
geographic |
Arctic Northwest Territories Nunavut |
geographic_facet |
Arctic Northwest Territories Nunavut |
genre |
Arctic Northwest Territories Nunavut Rangifer tarandus |
genre_facet |
Arctic Northwest Territories Nunavut Rangifer tarandus |
op_relation |
http://hdl.handle.net/10393/23752 |
_version_ |
1766335836559769600 |