Table_2_The Rapid Population Collapse of a Key Marine Predator in the Northern Antarctic Peninsula Endangers Genetic Diversity and Resilience to Clima.csv
Southwest Fisheries Science Center
Entity
(ENT)
| ID: 66328
| Published / External
Created: 2022-01-04
|
Last Modified: 2023-08-15
Data Set (DS) | ID: 66326
ID: 66328
Entity (ENT)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | Table_2_The Rapid Population Collapse of a Key Marine Predator in the Northern Antarctic Peninsula Endangers Genetic Diversity and Resilience to Clima.csv |
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Short Name | |
* Status | Completed |
Creation Date | 2022-01-04 |
Revision Date | 2022-01-04 |
• Publication Date | 2022-01-03 |
* » Abstract |
Antarctic fur seals (AFS) are an ecologically important predator and a focal indicator species for ecosystem-based Antarctic fisheries management. This species suffered intensive anthropogenic exploitation until the early 1900s, but recolonized most of its former distribution, including the southern-most colony at Cape Shirreff, South Shetland Islands (SSI). The IUCN describes a single, global AFS population of least concern; however, extensive genetic analyses clearly identify four distinct breeding stocks, including one in the SSI. To update the population status of SSI AFS, we analyzed 20 years of field-based data including population counts, body size and condition, natality, recruitment, foraging behaviors, return rates, and pup mortality at the largest SSI colony. Our findings show a precipitous decline in AFS abundance (86% decrease since 2007), likely driven by leopard seal predation (increasing since 2001, p << 0.001) and potentially worsening summer foraging conditions. We estimated that leopard seals consumed an average of 69.3% (range: 50.3â80.9%) of all AFS pups born each year since 2010. AFS foraging-trip durations, an index of their foraging habitat quality, were consistent with decreasing krill and fish availability. Significant improvement in the age-specific over-winter body condition of AFS indicates that observed population declines are driven by processes local to the northern Antarctic Peninsula. The loss of SSI AFS would substantially reduce the genetic diversity of the species, and decrease its resilience to climate change. There is an urgent need to reevaluate the conservation status of Antarctic fur seals, particularly for the rapidly declining SSI population. |
* Purpose |
To provide empirical data documenting the rapid decline of Antarctic Fur Seals at Cape Shirreff, as well as the important genetic diversity of this population. |
Notes |
Supplementary Data from Krause DJ, Bonin CA, Goebel ME, Reiss CS and Watters GM (2022) The Rapid Population Collapse of a Key Marine Predator in the Northern Antarctic Peninsula Endangers Genetic Diversity and Resilience to Climate Change. Front. Mar. Sci. 8:796488. doi: 10.3389/fmars.2021.796488 |
Other Citation Details |
Krause DJ, Bonin CA, Goebel ME, Reiss CS and Watters GM (2022) The Rapid Population Collapse of a Key Marine Predator in the Northern Antarctic Peninsula Endangers Genetic Diversity and Resilience to Climate Change. Front. Mar. Sci. 8:796488. doi: 10.3389/fmars.2021.796488 |
• Supplemental Information | |
DOI (Digital Object Identifier) | 10.3389/fmars.2021.796488 |
DOI Registration Authority | DOI Registration Authority |
DOI Issue Date | 2022-01-03 |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
None | Antarctic fur seal |
None | Arctocephalus gazella |
None | conservation status |
None | edge population |
None | population dynamics (ecology) |
None | Top-down and bottom-up control |
Temporal Keywords
Thesaurus | Keyword |
---|---|
* Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords | CONTINENT > ANTARCTICA > ANTARCTIC PENINSULA |
None | Cape Shirreff |
None | Livingston Island |
None | San Telmo Islets |
None | South Shetland Islands |
Stratum Keywords
Thesaurus | Keyword |
---|---|
Instrument Keywords
Thesaurus | Keyword |
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Platform Keywords
Thesaurus | Keyword |
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Physical Location
• » Organization | Southwest Fisheries Science Center |
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• » City | La Jolla |
• » State/Province | CA |
• Country | USA |
• » Location Description |
Entity Information
Entity Type | Spreadsheet |
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Active Version? | Y |
Alias | |
Schema Name | |
» Description |
Appendix S1: Demographic and population metrics for adult female and pup Antarctic fur seals from Cape Shirreff with their associated sample sizes (N_). |
Change Summary |
Data Attributes
Attribute Summary
Score | Req'd? | PKey? | » Name | Data Storage Type | Description |
---|---|---|---|---|---|
100 | No | No | Season | integer | year the season ended |
100 | No | No | Mean age | numeric | the mean age of all adult Antarctic fur seal females tracked at Cape Shirreff |
100 | No | No | sd | numeric | the standard deviation in age of all adult Antarctic fur seal females tracked at Cape Shirreff |
100 | No | No | N_Age | integer | the number of Antarctic fur seal females tracked at Cape Shirreff |
100 | No | No | Recruitment rate | numeric | the percentage of the tracked Antarctic fur seal females that were new recruits into the Cape Shirreff population |
100 | No | No | Return Rate | numeric | the percentage of Antarctic fur seal females that returned, of the seals expected to return based on the previous season |
100 | No | No | N_Return | integer | the number of Antarctic fur seal females that returned |
100 | No | No | Natality rate | numeric | the percentage of tracked Antarctic fur seal females that gave birth |
100 | No | No | N_Natality | integer | the number of tracked Antarctic fur seal females that gave birth |
100 | No | No | Prime Return Rate | numeric | the same as 'Return Rate', but only for prime females (ages 7 - 17) |
100 | No | No | N_Prime Return | integer | the same as 'N_Return', but only for prime females (ages 7 - 17) |
100 | No | No | Prime Natality Rate | numeric | the same as 'Natality Rate', but only for prime females (ages 7 - 17) |
100 | No | No | N_Prime Natality | integer | the same as 'N_Natality', but only for prime females (ages 7 - 17) |
100 | No | No | Pup_Neonate Mortality | numeric | the percentage of pups of tracked Antarctic fur seal females at Cape Shirreff that died due to neonate mortality |
100 | No | No | Pup_Leopard Seal Mortality | numeric | the percentage of pups of tracked Antarctic fur seal females at Cape Shirreff that died due to predation by leopard seals |
100 | No | No | Pup_Other Mortality | numeric | the percentage of pups of tracked Antarctic fur seal females at Cape Shirreff that died due to other mortality reasons |
100 | No | No | N_Mortality Estimates | integer | the number of pups of tracked Antarctic fur seal females at Cape Shirreff that died during the season |
Attribute Details
Attribute Name | Season |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
year the season ended |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Mean age |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the mean age of all adult Antarctic fur seal females tracked at Cape Shirreff |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | sd |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the standard deviation in age of all adult Antarctic fur seal females tracked at Cape Shirreff |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | N_Age |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the number of Antarctic fur seal females tracked at Cape Shirreff |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Recruitment rate |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the percentage of the tracked Antarctic fur seal females that were new recruits into the Cape Shirreff population |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Return Rate |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the percentage of Antarctic fur seal females that returned, of the seals expected to return based on the previous season |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | N_Return |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the number of Antarctic fur seal females that returned |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Natality rate |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the percentage of tracked Antarctic fur seal females that gave birth |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | N_Natality |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the number of tracked Antarctic fur seal females that gave birth |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Prime Return Rate |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the same as 'Return Rate', but only for prime females (ages 7 - 17) |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | N_Prime Return |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the same as 'N_Return', but only for prime females (ages 7 - 17) |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Prime Natality Rate |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the same as 'Natality Rate', but only for prime females (ages 7 - 17) |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | N_Prime Natality |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the same as 'N_Natality', but only for prime females (ages 7 - 17) |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Pup_Neonate Mortality |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the percentage of pups of tracked Antarctic fur seal females at Cape Shirreff that died due to neonate mortality |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Pup_Leopard Seal Mortality |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the percentage of pups of tracked Antarctic fur seal females at Cape Shirreff that died due to predation by leopard seals |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | Pup_Other Mortality |
---|---|
Seq. Order | |
Data Storage Type | numeric |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the percentage of pups of tracked Antarctic fur seal females at Cape Shirreff that died due to other mortality reasons |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | N_Mortality Estimates |
---|---|
Seq. Order | |
Data Storage Type | integer |
Max Length | |
Min Length | |
Required | No |
Primary Key | No |
Precision | |
Scale | |
Status | Active |
Description |
the number of pups of tracked Antarctic fur seal females at Cape Shirreff that died during the season |
General Data Type | |
Unit of Measure | |
Case Restriction | |
Display Example | |
Format Mask | |
Null Value | |
Null Value Meaning | |
Allowed Values | |
Default Value | |
Foreign Key Relations | |
Derivation | |
Validation Rules |
Attribute Name | |
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General Data Type | |
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Null Value | |
Null Value Meaning | |
Min Length | |
Unit of Measure | |
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Support Roles
* » Support Role | Data Steward |
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* » Date Effective From | 2022 |
Date Effective To | |
Person | Woodman, Sam |
Address |
8901 La Jolla Shores Dr La Jolla, CA 92037 USA |
Email Address | sam.woodman@noaa.gov |
Phone | 858-546-7138 |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Distributor |
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* » Date Effective From | 2022 |
Date Effective To | |
Organization | Southwest Fisheries Science Center (SWFSC) |
Address |
8901 La Jolla Shores Dr. La Jolla, CA 92037 USA |
Email Address | |
Phone | (858)546-7000 |
Fax | |
Mobile | |
URL | http://swfsc.noaa.gov/ |
Business Hours | 8:00-16:30 |
Contact Instructions |
* » Support Role | Metadata Contact |
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* » Date Effective From | 2022 |
Date Effective To | |
Person | Krause, Douglas |
Email Address | douglas.krause@noaa.gov |
Phone | |
Fax | |
Mobile | |
URL | |
Business Hours | |
Contact Instructions |
* » Support Role | Point of Contact |
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* » Date Effective From | 2022 |
Date Effective To | |
Person | Krause, Douglas |
Email Address | douglas.krause@noaa.gov |
Phone | |
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* Contact Instructions |
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* Contact Instructions |
Extents
Currentness Reference |
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Extent Group 1
Extent Description |
FAO Area 48.1, CCAMLR Area 48.1, Antarctic Peninsula, South Shetland Islands, South Orkney Islands |
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Extent Group 1 / Geographic Area 1
* » W° Bound | -64 |
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* » E° Bound | -43 |
* » N° Bound | -58 |
* » S° Bound | -65 |
* » Description |
Extent Group 1 / Vertical Extent
EPSG Code | |
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Vertical Minimum | |
Vertical Maximum |
Extent Group 1 / Time Frame 1
* » Time Frame Type | Range |
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* » Start | 2001 |
End | 2020 |
Alternate Start As Of Info | |
Alternate End As Of Info | |
Description |
Access Information
* » Security Class | Unclassified |
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* Security Classification System | |
Security Handling Description | |
• Data Access Policy |
Available online at https://www.frontiersin.org/articles/10.3389/fmars.2021.796488/full#supplementary-material |
» Data Access Procedure |
https://www.frontiersin.org/articles/10.3389/fmars.2021.796488/full#supplementary-material |
• » Data Access Constraints |
None |
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Distribution Information
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» Download URL | https://www.frontiersin.org/articles/10.3389/fmars.2021.796488/full#supplementary-material |
Distributor | Southwest Fisheries Science Center (SWFSC) (2022 - Present) |
File Name | 5773724.zip |
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Child Items
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Catalog Details
Catalog Item ID | 66328 |
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Metadata Record Created By | Sam Woodman |
Metadata Record Created | 2022-01-04 23:39+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2023-08-15 17:09+0000 |
Metadata Record Published | 2022-01-04 |
Owner Org | SWFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2022-01-04 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2023-01-04 |
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