Supplementary Methods Population data
During aerial surveys, photographs were taken of sea lions on all rookery and haul-out sites in the Gulf of Alaska and Aleutian Islands in approximately two weeks during the breeding season (June/July). At this time, newborns (pups) and reproductive adults are observed on rookeries where adult males...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.183.6436 2023-05-15T18:48:57+02:00 Supplementary Methods Population data The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.6436 http://www.fakr.noaa.gov/sustainablefisheries/sslmc/april-06/HolmesSuppInfo.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.6436 http://www.fakr.noaa.gov/sustainablefisheries/sslmc/april-06/HolmesSuppInfo.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.fakr.noaa.gov/sustainablefisheries/sslmc/april-06/HolmesSuppInfo.pdf else Pinterpolated all year j = “missing” text ftciteseerx 2016-01-07T16:34:20Z During aerial surveys, photographs were taken of sea lions on all rookery and haul-out sites in the Gulf of Alaska and Aleutian Islands in approximately two weeks during the breeding season (June/July). At this time, newborns (pups) and reproductive adults are observed on rookeries where adult males defend territories and mating and birthing occur. Adults that are not breeding that year and pre-reproductive juveniles (age 1 to 3 years old) are observed on haul-out sites where sea lions predictably rest on land but where no or few pups are born. Non-pups include all juveniles and adults but not newborn pups. The National Marine Fisheries Service designates rookeries and haul-outs as trend or non-trend sites (NMFS 1992). Trend sites have been regularly surveyed since 1976, while non-trend sites have not been counted as consistently; animals on trend sites account for 60-70 % of the total count. For this paper, we used the 1976-2004 total nonpup count on trend rookeries and haul-outs in the CGOA during June/July. The raw data with references are given in Supplementary Table 1. Steller sea lion pup censuses Text Alaska Aleutian Islands Unknown Gulf of Alaska |
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Open Polar |
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ftciteseerx |
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English |
topic |
else Pinterpolated all year j = “missing” |
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else Pinterpolated all year j = “missing” Supplementary Methods Population data |
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else Pinterpolated all year j = “missing” |
description |
During aerial surveys, photographs were taken of sea lions on all rookery and haul-out sites in the Gulf of Alaska and Aleutian Islands in approximately two weeks during the breeding season (June/July). At this time, newborns (pups) and reproductive adults are observed on rookeries where adult males defend territories and mating and birthing occur. Adults that are not breeding that year and pre-reproductive juveniles (age 1 to 3 years old) are observed on haul-out sites where sea lions predictably rest on land but where no or few pups are born. Non-pups include all juveniles and adults but not newborn pups. The National Marine Fisheries Service designates rookeries and haul-outs as trend or non-trend sites (NMFS 1992). Trend sites have been regularly surveyed since 1976, while non-trend sites have not been counted as consistently; animals on trend sites account for 60-70 % of the total count. For this paper, we used the 1976-2004 total nonpup count on trend rookeries and haul-outs in the CGOA during June/July. The raw data with references are given in Supplementary Table 1. Steller sea lion pup censuses |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
Supplementary Methods Population data |
title_short |
Supplementary Methods Population data |
title_full |
Supplementary Methods Population data |
title_fullStr |
Supplementary Methods Population data |
title_full_unstemmed |
Supplementary Methods Population data |
title_sort |
supplementary methods population data |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.6436 http://www.fakr.noaa.gov/sustainablefisheries/sslmc/april-06/HolmesSuppInfo.pdf |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
Alaska Aleutian Islands |
genre_facet |
Alaska Aleutian Islands |
op_source |
http://www.fakr.noaa.gov/sustainablefisheries/sslmc/april-06/HolmesSuppInfo.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.183.6436 http://www.fakr.noaa.gov/sustainablefisheries/sslmc/april-06/HolmesSuppInfo.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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