Synchronicity of movement paths of barren-ground caribou and tundra wolves
Abstract Movement patterns of highly mobile animals can reveal life history strategies and ecological relationships. We hypothesized that wolves (Canis lupus) would display similar movement patterns as their prey, barrenground caribou (Rangifer tarandus groenlandicus), and that movements of the two...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1089.9114 2023-05-15T15:50:57+02:00 Synchronicity of movement paths of barren-ground caribou and tundra wolves Jean Hansen Chris J Johnson • H Dean Cluff The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1089.9114 http://web.unbc.ca/%7Ejohnsoch/Publications/Hansen%20et%20al%20Synchronicity%20of%20movement%20paths%20of%20barren-ground%20caribou%20and%20tundra%20wolves.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1089.9114 http://web.unbc.ca/%7Ejohnsoch/Publications/Hansen%20et%20al%20Synchronicity%20of%20movement%20paths%20of%20barren-ground%20caribou%20and%20tundra%20wolves.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://web.unbc.ca/%7Ejohnsoch/Publications/Hansen%20et%20al%20Synchronicity%20of%20movement%20paths%20of%20barren-ground%20caribou%20and%20tundra%20wolves.pdf text ftciteseerx 2020-05-24T00:21:08Z Abstract Movement patterns of highly mobile animals can reveal life history strategies and ecological relationships. We hypothesized that wolves (Canis lupus) would display similar movement patterns as their prey, barrenground caribou (Rangifer tarandus groenlandicus), and that movements of the two species would co-vary with season. We tested for interspecific movement dynamics using animal locations from wolves and caribou monitored concurrently from mid-October to June, across the Northwest Territories and Nunavut, Canada. We used a correlated random walk as a null model to test for pattern in movements and the bearing procedure to detect whether movements were consistently directional. There was a statistical difference between the movements of caribou and wolves (F 1,9 = 13.232, P = 0.005), when compared to a correlated random walk, and a significant interaction effect between season and species (F 1,9 = 6.815, P = 0.028). During winter, the movements of caribou were strongly correlated with the 80°-90°(X r = 0.859, SE = 0.065) and 270°-280°(X r = 0.875, SE = 0.059) bearing classes suggesting an east-west movement gradient. Wolf movements during winter showed large variation in direction, but were generally east to west. Peak mean correlation for caribou movements during spring was distinct at 40°-50°( X r = 0.978, SE = 0.006) revealing movement to the north-east calving grounds. During spring, wolf movements correlated with the 80°-90°(X r = 0.861, SE = 0.043) and 270°-280°(X r = 0.850, SE = 0.064) bearing class. Directionality of movement suggested that during winter, caribou and wolves had a similar distribution at the large spatial scales we tested. During spring migration, however, caribou and wolves employed asynchronous movement strategies. Our findings demonstrate the utility of the correlated random walk and bearing procedure for quantifying the movement patterns of cooccurring species. Text Canis lupus caribou Northwest Territories Nunavut Rangifer tarandus Tundra Unknown Canada Northwest Territories Nunavut West Peak ENVELOPE(173.214,173.214,52.930,52.930) |
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Open Polar |
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ftciteseerx |
language |
English |
description |
Abstract Movement patterns of highly mobile animals can reveal life history strategies and ecological relationships. We hypothesized that wolves (Canis lupus) would display similar movement patterns as their prey, barrenground caribou (Rangifer tarandus groenlandicus), and that movements of the two species would co-vary with season. We tested for interspecific movement dynamics using animal locations from wolves and caribou monitored concurrently from mid-October to June, across the Northwest Territories and Nunavut, Canada. We used a correlated random walk as a null model to test for pattern in movements and the bearing procedure to detect whether movements were consistently directional. There was a statistical difference between the movements of caribou and wolves (F 1,9 = 13.232, P = 0.005), when compared to a correlated random walk, and a significant interaction effect between season and species (F 1,9 = 6.815, P = 0.028). During winter, the movements of caribou were strongly correlated with the 80°-90°(X r = 0.859, SE = 0.065) and 270°-280°(X r = 0.875, SE = 0.059) bearing classes suggesting an east-west movement gradient. Wolf movements during winter showed large variation in direction, but were generally east to west. Peak mean correlation for caribou movements during spring was distinct at 40°-50°( X r = 0.978, SE = 0.006) revealing movement to the north-east calving grounds. During spring, wolf movements correlated with the 80°-90°(X r = 0.861, SE = 0.043) and 270°-280°(X r = 0.850, SE = 0.064) bearing class. Directionality of movement suggested that during winter, caribou and wolves had a similar distribution at the large spatial scales we tested. During spring migration, however, caribou and wolves employed asynchronous movement strategies. Our findings demonstrate the utility of the correlated random walk and bearing procedure for quantifying the movement patterns of cooccurring species. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jean Hansen Chris J Johnson • H Dean Cluff |
spellingShingle |
Jean Hansen Chris J Johnson • H Dean Cluff Synchronicity of movement paths of barren-ground caribou and tundra wolves |
author_facet |
Jean Hansen Chris J Johnson • H Dean Cluff |
author_sort |
Jean Hansen |
title |
Synchronicity of movement paths of barren-ground caribou and tundra wolves |
title_short |
Synchronicity of movement paths of barren-ground caribou and tundra wolves |
title_full |
Synchronicity of movement paths of barren-ground caribou and tundra wolves |
title_fullStr |
Synchronicity of movement paths of barren-ground caribou and tundra wolves |
title_full_unstemmed |
Synchronicity of movement paths of barren-ground caribou and tundra wolves |
title_sort |
synchronicity of movement paths of barren-ground caribou and tundra wolves |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1089.9114 http://web.unbc.ca/%7Ejohnsoch/Publications/Hansen%20et%20al%20Synchronicity%20of%20movement%20paths%20of%20barren-ground%20caribou%20and%20tundra%20wolves.pdf |
long_lat |
ENVELOPE(173.214,173.214,52.930,52.930) |
geographic |
Canada Northwest Territories Nunavut West Peak |
geographic_facet |
Canada Northwest Territories Nunavut West Peak |
genre |
Canis lupus caribou Northwest Territories Nunavut Rangifer tarandus Tundra |
genre_facet |
Canis lupus caribou Northwest Territories Nunavut Rangifer tarandus Tundra |
op_source |
http://web.unbc.ca/%7Ejohnsoch/Publications/Hansen%20et%20al%20Synchronicity%20of%20movement%20paths%20of%20barren-ground%20caribou%20and%20tundra%20wolves.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1089.9114 http://web.unbc.ca/%7Ejohnsoch/Publications/Hansen%20et%20al%20Synchronicity%20of%20movement%20paths%20of%20barren-ground%20caribou%20and%20tundra%20wolves.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766385993482502144 |