Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska
The Steller sea lion (Eumetopias jubatus) experienced a dramatic population decline from 1960 to 1989. This decline resulted in the western distinct population of Steller sea lions being listed as endangered by the National Marine Fisheries Service in 1997. In 1999 the Alaska SeaLife Center began re...
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Online Access: | https://scholarlyrepository.miami.edu/rsmas_intern_reports/132 https://scholarlyrepository.miami.edu/cgi/viewcontent.cgi?article=1131&context=rsmas_intern_reports |
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ftunivmiamiir:oai:scholarlyrepository.miami.edu:rsmas_intern_reports-1131 2023-05-15T16:31:54+02:00 Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska Duffy, Maureen 2014-10-01T07:00:00Z application/pdf https://scholarlyrepository.miami.edu/rsmas_intern_reports/132 https://scholarlyrepository.miami.edu/cgi/viewcontent.cgi?article=1131&context=rsmas_intern_reports unknown Scholarly Repository Internship Reports (Restricted) Stellar sea lion Eumetopias jubatus Gulf of Alaska offspring status Environmental Sciences internship_report 2014 ftunivmiamiir 2018-12-30T18:18:47Z The Steller sea lion (Eumetopias jubatus) experienced a dramatic population decline from 1960 to 1989. This decline resulted in the western distinct population of Steller sea lions being listed as endangered by the National Marine Fisheries Service in 1997. In 1999 the Alaska SeaLife Center began remotely monitoring several sites used by Steller sea lions in the northern Gulf of Alaska. This study utilized data collected from this project to examine movements of female Steller sea lions between several haulout and rookery sites. The offspring status of each female for each year was also determined to investigate any potential effects this may have on female movements. Offspring status had a significant effect on the arrival and departure dates of females at Chiswell Island and Grotto Island, as well as on the departure dates at the Seal Rocks site. Year had a significant effect on the arrival dates at Chiswell Island and Grotto Island, and the departure dates at Chiswell Island and Cape Resurrection. The effect of the individual had a significant effect on the arrival and departure dates at Chiswell Island and Grotto Island. There was a significant interaction effect between year and offspring status on arrival dates at Chiswell Island and Cape Resurrection, as well as on departure dates at Chiswell Island. A significant interaction effect was found between year and individual on the arrival and departure dates at Chiswell Island and Grotto Island, and on arrival dates at Cape Resurrection. The interaction effect between individual and offspring status had a significant effect on the arrival and departure dates at Chiswell Island. This information can be used to help determine critical habitats for Steller sea lions and improve the understanding of movements and site usage by females. Other/Unknown Material Grotto Island Alaska University of Miami: Scholarly Repository Gulf of Alaska Grotto ENVELOPE(-64.252,-64.252,-65.242,-65.242) Grotto Island ENVELOPE(-64.267,-64.267,-65.233,-65.233) Seal Rocks ENVELOPE(-57.282,-57.282,50.783,50.783) |
institution |
Open Polar |
collection |
University of Miami: Scholarly Repository |
op_collection_id |
ftunivmiamiir |
language |
unknown |
topic |
Stellar sea lion Eumetopias jubatus Gulf of Alaska offspring status Environmental Sciences |
spellingShingle |
Stellar sea lion Eumetopias jubatus Gulf of Alaska offspring status Environmental Sciences Duffy, Maureen Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska |
topic_facet |
Stellar sea lion Eumetopias jubatus Gulf of Alaska offspring status Environmental Sciences |
description |
The Steller sea lion (Eumetopias jubatus) experienced a dramatic population decline from 1960 to 1989. This decline resulted in the western distinct population of Steller sea lions being listed as endangered by the National Marine Fisheries Service in 1997. In 1999 the Alaska SeaLife Center began remotely monitoring several sites used by Steller sea lions in the northern Gulf of Alaska. This study utilized data collected from this project to examine movements of female Steller sea lions between several haulout and rookery sites. The offspring status of each female for each year was also determined to investigate any potential effects this may have on female movements. Offspring status had a significant effect on the arrival and departure dates of females at Chiswell Island and Grotto Island, as well as on the departure dates at the Seal Rocks site. Year had a significant effect on the arrival dates at Chiswell Island and Grotto Island, and the departure dates at Chiswell Island and Cape Resurrection. The effect of the individual had a significant effect on the arrival and departure dates at Chiswell Island and Grotto Island. There was a significant interaction effect between year and offspring status on arrival dates at Chiswell Island and Cape Resurrection, as well as on departure dates at Chiswell Island. A significant interaction effect was found between year and individual on the arrival and departure dates at Chiswell Island and Grotto Island, and on arrival dates at Cape Resurrection. The interaction effect between individual and offspring status had a significant effect on the arrival and departure dates at Chiswell Island. This information can be used to help determine critical habitats for Steller sea lions and improve the understanding of movements and site usage by females. |
format |
Other/Unknown Material |
author |
Duffy, Maureen |
author_facet |
Duffy, Maureen |
author_sort |
Duffy, Maureen |
title |
Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska |
title_short |
Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska |
title_full |
Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska |
title_fullStr |
Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska |
title_full_unstemmed |
Fine scale movements of adult female Steller sea lions in the Northern Gulf of Alaska |
title_sort |
fine scale movements of adult female steller sea lions in the northern gulf of alaska |
publisher |
Scholarly Repository |
publishDate |
2014 |
url |
https://scholarlyrepository.miami.edu/rsmas_intern_reports/132 https://scholarlyrepository.miami.edu/cgi/viewcontent.cgi?article=1131&context=rsmas_intern_reports |
long_lat |
ENVELOPE(-64.252,-64.252,-65.242,-65.242) ENVELOPE(-64.267,-64.267,-65.233,-65.233) ENVELOPE(-57.282,-57.282,50.783,50.783) |
geographic |
Gulf of Alaska Grotto Grotto Island Seal Rocks |
geographic_facet |
Gulf of Alaska Grotto Grotto Island Seal Rocks |
genre |
Grotto Island Alaska |
genre_facet |
Grotto Island Alaska |
op_source |
Internship Reports (Restricted) |
_version_ |
1766021607465156608 |