Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System

The spatial and temporal relationships between belugas (Delphinapterus leucas) and two characteristics of their habitat - bathymetry and ice concentration - were examined. Observed location-habitat correspondence histograms were compared to random location-habitat histograms, using a Kolmogorov-Smir...

Full description

Bibliographic Details
Published in:ARCTIC
Main Authors: Barber, David G., Saczuk, Eric, Richard, Pierre R.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 2001
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847
id ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63847
record_format openpolar
spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63847 2023-05-15T14:19:07+02:00 Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System Barber, David G. Saczuk, Eric Richard, Pierre R. 2001-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847/47782 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847 ARCTIC; Vol. 54 No. 3 (2001): September: 207–355; 305-316 1923-1245 0004-0843 bathymetry beluga climate change Delphinapterus leucas Geographic Information System habitat sea ice bathymétrie bélouga changement climatique système d’information géographique glace marine info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2001 ftunivcalgaryojs 2022-03-22T21:21:09Z The spatial and temporal relationships between belugas (Delphinapterus leucas) and two characteristics of their habitat - bathymetry and ice concentration - were examined. Observed location-habitat correspondence histograms were compared to random location-habitat histograms, using a Kolmogorov-Smirnoff (K-S) statistical test. Results show that beluga distribution is bimodal with respect to bathymetry, with a larger mode in shallow water and a smaller mode in water approximately 500 m deep. They occur more often than expected by chance in the 0/10 ice class and less often than expected in the 10/10 ice class. Males and females associate differently with both depth and ice concentration. Females associate with bathymetry very differently in the fall than in the summer. There is a general tendency for males in the eastern North American Arctic to be associated with shallow water during the summer and deeper water (modes at 100 and 500 m) in the fall. Female locations are associated more often with the 0/10 ice class and less often with the 10/10 class than expected by chance. These trends were stronger in the western than in the eastern portions of the Canadian Arctic. On a étudié les rapports spatiaux et temporels entre les bélougas (Delphinapterus leucas) et deux caractéristiques de leur habitat (bathymétrie et concentration de glace). À l'aide d'un test statistique de Kolmogorov-Smirnov (K-S), on a comparé les histogrammes de la correspondance observée emplacement-habitat à des histogrammes emplacement-habitat pris au hasard. Les résultats montrent que la distribution du bélouga est bimodale en ce qui a trait à la bathymétrie, un mode plus grand étant associé à l'eau peu profonde et un mode plus petit à l'eau profonde d'environ 500 m. On les trouve plus fréquemment qu'on ne peut le prédire au hasard dans de la glace de cote 0/10 et moins souvent dans de la glace de cote 10/10. Les mâles et les femelles s'associent différemment selon la profondeur comme la concentration de glace. Les femelles s'associent très différemment avec la bathymétrie en automne et en été. Dans les mers arctiques de l'Amérique du Nord orientale, il y a une tendance générale pour les mâles à s'associer aux eaux peu profondes durant l'été et aux eaux plus profondes (modes à 100 et 500 m) en automne. Les emplacements des femelles sont associés plus souvent à la glace de cote 0/10 et moins souvent à la cote 10/10 qu'on ne peut le prédire au hasard. Ces tendances étaient plus marquées dans les parties occidentales que dans les zones orientales de l'Arctique canadien. Article in Journal/Newspaper Arctic Arctic Arctique* Beluga Beluga* Climate change Delphinapterus leucas Sea ice University of Calgary Journal Hosting Arctic ARCTIC 54 3
institution Open Polar
collection University of Calgary Journal Hosting
op_collection_id ftunivcalgaryojs
language English
topic bathymetry
beluga
climate change
Delphinapterus leucas
Geographic Information System
habitat
sea ice
bathymétrie
bélouga
changement climatique
système d’information géographique
glace marine
spellingShingle bathymetry
beluga
climate change
Delphinapterus leucas
Geographic Information System
habitat
sea ice
bathymétrie
bélouga
changement climatique
système d’information géographique
glace marine
Barber, David G.
Saczuk, Eric
Richard, Pierre R.
Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System
topic_facet bathymetry
beluga
climate change
Delphinapterus leucas
Geographic Information System
habitat
sea ice
bathymétrie
bélouga
changement climatique
système d’information géographique
glace marine
description The spatial and temporal relationships between belugas (Delphinapterus leucas) and two characteristics of their habitat - bathymetry and ice concentration - were examined. Observed location-habitat correspondence histograms were compared to random location-habitat histograms, using a Kolmogorov-Smirnoff (K-S) statistical test. Results show that beluga distribution is bimodal with respect to bathymetry, with a larger mode in shallow water and a smaller mode in water approximately 500 m deep. They occur more often than expected by chance in the 0/10 ice class and less often than expected in the 10/10 ice class. Males and females associate differently with both depth and ice concentration. Females associate with bathymetry very differently in the fall than in the summer. There is a general tendency for males in the eastern North American Arctic to be associated with shallow water during the summer and deeper water (modes at 100 and 500 m) in the fall. Female locations are associated more often with the 0/10 ice class and less often with the 10/10 class than expected by chance. These trends were stronger in the western than in the eastern portions of the Canadian Arctic. On a étudié les rapports spatiaux et temporels entre les bélougas (Delphinapterus leucas) et deux caractéristiques de leur habitat (bathymétrie et concentration de glace). À l'aide d'un test statistique de Kolmogorov-Smirnov (K-S), on a comparé les histogrammes de la correspondance observée emplacement-habitat à des histogrammes emplacement-habitat pris au hasard. Les résultats montrent que la distribution du bélouga est bimodale en ce qui a trait à la bathymétrie, un mode plus grand étant associé à l'eau peu profonde et un mode plus petit à l'eau profonde d'environ 500 m. On les trouve plus fréquemment qu'on ne peut le prédire au hasard dans de la glace de cote 0/10 et moins souvent dans de la glace de cote 10/10. Les mâles et les femelles s'associent différemment selon la profondeur comme la concentration de glace. Les femelles s'associent très différemment avec la bathymétrie en automne et en été. Dans les mers arctiques de l'Amérique du Nord orientale, il y a une tendance générale pour les mâles à s'associer aux eaux peu profondes durant l'été et aux eaux plus profondes (modes à 100 et 500 m) en automne. Les emplacements des femelles sont associés plus souvent à la glace de cote 0/10 et moins souvent à la cote 10/10 qu'on ne peut le prédire au hasard. Ces tendances étaient plus marquées dans les parties occidentales que dans les zones orientales de l'Arctique canadien.
format Article in Journal/Newspaper
author Barber, David G.
Saczuk, Eric
Richard, Pierre R.
author_facet Barber, David G.
Saczuk, Eric
Richard, Pierre R.
author_sort Barber, David G.
title Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System
title_short Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System
title_full Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System
title_fullStr Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System
title_full_unstemmed Examination of Beluga-habitat Relationships through the Use of Telemetry and a Geographic Information System
title_sort examination of beluga-habitat relationships through the use of telemetry and a geographic information system
publisher The Arctic Institute of North America
publishDate 2001
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847
geographic Arctic
geographic_facet Arctic
genre Arctic
Arctic
Arctique*
Beluga
Beluga*
Climate change
Delphinapterus leucas
Sea ice
genre_facet Arctic
Arctic
Arctique*
Beluga
Beluga*
Climate change
Delphinapterus leucas
Sea ice
op_source ARCTIC; Vol. 54 No. 3 (2001): September: 207–355; 305-316
1923-1245
0004-0843
op_relation https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847/47782
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63847
container_title ARCTIC
container_volume 54
container_issue 3
_version_ 1766290694705512448