Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages
Here we provide two ArcGIS map packages with georeferenced files on the spatial distribution of seals in the wider Weddell Sea (Antarctica), which were created in the context of the development of a marine protected area in the Weddell Sea. Spatial distribution of seals based on aerial surveys: The...
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ftawi:oai:epic.awi.de:56957 2023-05-15T13:45:22+02:00 Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages Pehlke, Hendrik Brey, Thomas Teschke, Katharina 2019 https://epic.awi.de/id/eprint/56957/ https://doi.org/10.1594/PANGAEA.899619 https://hdl.handle.net/10013/epic.8fa75bac-ccab-401a-89e3-96ffb80bc563 unknown PANGAEA Pehlke, H. orcid:0000-0003-1916-7831 , Brey, T. orcid:0000-0002-6345-2851 and Teschke, K. orcid:0000-0001-9595-7443 (2019) Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages , [Other] doi:10.1594/PANGAEA.899619 <https://doi.org/10.1594/PANGAEA.899619> , hdl:10013/epic.8fa75bac-ccab-401a-89e3-96ffb80bc563 EPIC3PANGAEA Other NonPeerReviewed 2019 ftawi https://doi.org/10.1594/PANGAEA.899619 2022-09-18T23:12:31Z Here we provide two ArcGIS map packages with georeferenced files on the spatial distribution of seals in the wider Weddell Sea (Antarctica), which were created in the context of the development of a marine protected area in the Weddell Sea. Spatial distribution of seals based on aerial surveys: The map of the spatial distribution of crabeater seals is based on modelled seal abundances from Flores et al. (2008) and Forcada et al. (2012). These modelled abundances were supplemented by abundance data derived from Bester et al. (1995, 2002) and by point data from Pl\"otz et al. (2011a-e), which were translated into abundance values by the count method for line transect data. The calculated data on seal abundances from Pl\"otz et al. (2011a-e) and Bester et al. (1995, 2002) were interpolated using the inverse distance weighted method. The combined data set of modelled and interpolated abundances showed highest absolute seal abundances offshore the Riiser-Larsen Ice Shelf and Quarisen Ice Shelf. Spatial distribution of seals based on tracking data: The map of probability of seal occurrence is based on all tracking data publicly available for the wider Weddell Sea from the MEOP data portal "Marine Mammals Exploring the Oceans Pole to Pole" (data request: 14-11-2016). In addition, we have used MEOP data (UK data: ct27, ct70; German data: ct113, wd06, wd07) for which unconditional sharing is not yet accepted. These data were provided by Lars Boehme (University of St. Andrews) and Horst Bornemann (AWI), respectively. Furthermore, the data from the MEOP data portal were complemented by tracking data sets on southern elephant seals (Tosh et al. 2009, James et al. 2012), Weddell seals (McIntyre et al. 2013) and crabeater seals (Nachtsheim et al. 2016). All tracking data united were processed with a state-space model described by Johnson et al. (2008) and were implemented in the R package crawl (Johnson 2011). The tracking data analysis indicated frequent occurrence of seals in a larger area off the Brunt and Filchner Ice ... Text Antarc* Antarctica Crabeater Seals Elephant Seals Ice Shelf Larsen Ice Shelf Riiser Larsen Ice Shelf Riiser-Larsen Ice Shelf Southern Elephant Seals Weddell Sea Weddell Seals Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Weddell Sea Weddell Riiser-Larsen ENVELOPE(50.667,50.667,-66.783,-66.783) Larsen Ice Shelf ENVELOPE(-62.500,-62.500,-67.500,-67.500) McIntyre ENVELOPE(-153.000,-153.000,-87.283,-87.283) Riiser-Larsen Ice Shelf ENVELOPE(-20.000,-20.000,-74.417,-74.417) Quarisen ENVELOPE(-11.000,-11.000,-71.250,-71.250) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Here we provide two ArcGIS map packages with georeferenced files on the spatial distribution of seals in the wider Weddell Sea (Antarctica), which were created in the context of the development of a marine protected area in the Weddell Sea. Spatial distribution of seals based on aerial surveys: The map of the spatial distribution of crabeater seals is based on modelled seal abundances from Flores et al. (2008) and Forcada et al. (2012). These modelled abundances were supplemented by abundance data derived from Bester et al. (1995, 2002) and by point data from Pl\"otz et al. (2011a-e), which were translated into abundance values by the count method for line transect data. The calculated data on seal abundances from Pl\"otz et al. (2011a-e) and Bester et al. (1995, 2002) were interpolated using the inverse distance weighted method. The combined data set of modelled and interpolated abundances showed highest absolute seal abundances offshore the Riiser-Larsen Ice Shelf and Quarisen Ice Shelf. Spatial distribution of seals based on tracking data: The map of probability of seal occurrence is based on all tracking data publicly available for the wider Weddell Sea from the MEOP data portal "Marine Mammals Exploring the Oceans Pole to Pole" (data request: 14-11-2016). In addition, we have used MEOP data (UK data: ct27, ct70; German data: ct113, wd06, wd07) for which unconditional sharing is not yet accepted. These data were provided by Lars Boehme (University of St. Andrews) and Horst Bornemann (AWI), respectively. Furthermore, the data from the MEOP data portal were complemented by tracking data sets on southern elephant seals (Tosh et al. 2009, James et al. 2012), Weddell seals (McIntyre et al. 2013) and crabeater seals (Nachtsheim et al. 2016). All tracking data united were processed with a state-space model described by Johnson et al. (2008) and were implemented in the R package crawl (Johnson 2011). The tracking data analysis indicated frequent occurrence of seals in a larger area off the Brunt and Filchner Ice ... |
format |
Text |
author |
Pehlke, Hendrik Brey, Thomas Teschke, Katharina |
spellingShingle |
Pehlke, Hendrik Brey, Thomas Teschke, Katharina Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages |
author_facet |
Pehlke, Hendrik Brey, Thomas Teschke, Katharina |
author_sort |
Pehlke, Hendrik |
title |
Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages |
title_short |
Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages |
title_full |
Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages |
title_fullStr |
Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages |
title_full_unstemmed |
Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages |
title_sort |
spatial distribution of seals in the wider weddell sea (antarctica) with links to arcgis map packages |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/56957/ https://doi.org/10.1594/PANGAEA.899619 https://hdl.handle.net/10013/epic.8fa75bac-ccab-401a-89e3-96ffb80bc563 |
long_lat |
ENVELOPE(50.667,50.667,-66.783,-66.783) ENVELOPE(-62.500,-62.500,-67.500,-67.500) ENVELOPE(-153.000,-153.000,-87.283,-87.283) ENVELOPE(-20.000,-20.000,-74.417,-74.417) ENVELOPE(-11.000,-11.000,-71.250,-71.250) |
geographic |
Weddell Sea Weddell Riiser-Larsen Larsen Ice Shelf McIntyre Riiser-Larsen Ice Shelf Quarisen |
geographic_facet |
Weddell Sea Weddell Riiser-Larsen Larsen Ice Shelf McIntyre Riiser-Larsen Ice Shelf Quarisen |
genre |
Antarc* Antarctica Crabeater Seals Elephant Seals Ice Shelf Larsen Ice Shelf Riiser Larsen Ice Shelf Riiser-Larsen Ice Shelf Southern Elephant Seals Weddell Sea Weddell Seals |
genre_facet |
Antarc* Antarctica Crabeater Seals Elephant Seals Ice Shelf Larsen Ice Shelf Riiser Larsen Ice Shelf Riiser-Larsen Ice Shelf Southern Elephant Seals Weddell Sea Weddell Seals |
op_source |
EPIC3PANGAEA |
op_relation |
Pehlke, H. orcid:0000-0003-1916-7831 , Brey, T. orcid:0000-0002-6345-2851 and Teschke, K. orcid:0000-0001-9595-7443 (2019) Spatial distribution of seals in the wider Weddell Sea (Antarctica) with links to ArcGIS map packages , [Other] doi:10.1594/PANGAEA.899619 <https://doi.org/10.1594/PANGAEA.899619> , hdl:10013/epic.8fa75bac-ccab-401a-89e3-96ffb80bc563 |
op_doi |
https://doi.org/10.1594/PANGAEA.899619 |
_version_ |
1766222986331815936 |