(My organization)
Continents, countries, sea regions of the world.
Aerial survey of St Andrews Bay, South Georgia, elephant seal colony during the 2024/2025 season, flight DLPUS_214_26
Aerial survey of St Andrews Bay elephant seal colony, Mirounga leonina, during the 2023/24 season conducted using a remotely piloted aerial system (RPAS). The aerial survey was conducted as part of the Darwin Plus (DPLUS) 214 project: Southwest Atlantic Elephant Seal Population Assessment (SAESPA). Dataset includes the original images and log files, the original RINEX GNSS (global navigation satellite system) base station files, the post-processed global navigation satellite system and imagery data, along with the resulting georeferenced DSM (digital surface model) and an orthorectified mosaic of the imagery. This dataset is from flight number DPLUS_214_26 which was carried out on 2024-10-30. This work was supported by the Overseas Territories Environment and Climate Fund under Grant Darwin Plus ref: DPLUS214: Southwest Atlantic Elephant Seal Population Assessment (SAESPA).
St Andrews Bay, South Georgia Antarctica
EARTH SCIENCE > Biosphere > Animal Taxonomy > Mammals
EARTH SCIENCE > Biosphere > Ecological Dynamics > Biodiversity
EARTH SCIENCE > Biosphere > Ecological Dynamics > Population Dynamics
EARTH SCIENCE > Oceans > Marine Biology > Marine Mammals
EARTH SCIENCE > Biosphere > Terrestrial Ecosystems
Data supplied under Open Government Licence v3.0
public access limited according to Article 13(1)(e) of the INSPIRE Directive
Methodology: Data collection: Aerial survey conducted using a RPAS (AgEagle eBee X). The survey consisted of collecting overlapping imagery of the target area, with a forward overlap of 95%. The target altitude during acquisition was 95 m AGL (above ground level). During the aerial surveys a geodetic Trimble GNSS base station receiver collected data. Post flight processing: Precise point positioning (PPP) was undertaken using the online Canadian Spatial Reference System PPP tool to generate the position of the base station during the survey and which was then used to process the eBee X's onboard GNSS receiver using post-processed kinematic (PPK) processing to improve the accuracy of the camera centres captured during flight. Photogrammetry / final outputs: Structure from motion photogrammetry was used to determine the exterior orientation (x, y, z, omega, phi and kappa (or roll, pitch, yaw)) of the camera during image acquisition using a combination of the onboard GNSS solution and common points within the images. Once the camera centre and orientation for each image was determined, a dense point cloud was extracted of the surface within the target area. The dense point cloud was then transformed into a DSM (in metres), which in turn was used to resample the images onto a map projection, removing camera perspective and terrain distortions, in a process called ortho-rectification and resulted in a single complete mosaic of the imagery. Data collection: Data collection equipment: Unmanned aerial vehicle (UAV): Manufacturer: AgEagle Model: eBee X Sensor: AgEagle SODA 3D Flight management software: eMotion (version 3.23.0) GNSS base station: Manufacturer: Trimble Receiver model: R9s Antenna model: Zyphr Model 2 Post-flight processing software: Canadian Spatial Reference System Precise Point Positioning (CSRS-PPP, Version 3) eMotion (version 3.23.0) Photogrammetry software: Pix4D (version 4.9.0.). Data quality: Coordinate reference system for outputs: Projection: UTM Zone 23S Horizontal datum: WGS84 Vertical datum: MSL (mean sea level), EGM2008 geoid Resolution of final outputs: DSM (2.1 cm) Orthorectified mosaic (2.1 cm) Calibration accounted for in processing.
Aerial survey of St Andrews Bay, South Georgia, elephant seal colony during the 2024/2025 season, flight DLPUS_214_24
Aerial survey of St Andrews Bay elephant seal colony, Mirounga leonina, during the 2023/24 season conducted using a remotely piloted aerial system (RPAS). The aerial survey was conducted as part of the Darwin Plus (DPLUS) 214 project: Southwest Atlantic Elephant Seal Population Assessment (SAESPA). Dataset includes the original images and log files, the original RINEX GNSS (global navigation satellite system) base station files, the post-processed global navigation satellite system and imagery data, along with the resulting georeferenced DSM (digital surface model) and an orthorectified mosaic of the imagery. This dataset is from flight number DPLUS_214_24 which was carried out on 2024-10-28. This work was supported by the Overseas Territories Environment and Climate Fund under Grant Darwin Plus ref: DPLUS214: Southwest Atlantic Elephant Seal Population Assessment (SAESPA).
Aerial survey of St Andrews Bay, South Georgia, elephant seal colony during the 2024/2025 season, flight DLPUS_214_25
Aerial survey of St Andrews Bay elephant seal colony, Mirounga leonina, during the 2023/24 season conducted using a remotely piloted aerial system (RPAS). The aerial survey was conducted as part of the Darwin Plus (DPLUS) 214 project: Southwest Atlantic Elephant Seal Population Assessment (SAESPA). Dataset includes the original images and log files, the original RINEX GNSS (global navigation satellite system) base station files, the post-processed global navigation satellite system and imagery data, along with the resulting georeferenced DSM (digital surface model) and an orthorectified mosaic of the imagery. This dataset is from flight number DPLUS_214_25 which was carried out on 2024-10-29. This work was supported by the Overseas Territories Environment and Climate Fund under Grant Darwin Plus ref: DPLUS214: Southwest Atlantic Elephant Seal Population Assessment (SAESPA).
Aerial survey of St Andrews Bay, South Georgia, elephant seal colony during the 2024/2025 season, flight DLPUS_214_29
Aerial survey of St Andrews Bay elephant seal colony, Mirounga leonina, during the 2023/24 season conducted using a remotely piloted aerial system (RPAS). The aerial survey was conducted as part of the Darwin Plus (DPLUS) 214 project: Southwest Atlantic Elephant Seal Population Assessment (SAESPA). Dataset includes the original images and log files, the original RINEX GNSS (global navigation satellite system) base station files, the post-processed global navigation satellite system and imagery data, along with the resulting georeferenced DSM (digital surface model) and an orthorectified mosaic of the imagery. This dataset is from flight number DPLUS_214_29 which was carried out on 2024-10-31. This work was supported by the Overseas Territories Environment and Climate Fund under Grant Darwin Plus ref: DPLUS214: Southwest Atlantic Elephant Seal Population Assessment (SAESPA).
Aerial survey of St Andrews Bay, South Georgia, elephant seal colony during the 2024/2025 season, flight DLPUS_214_30
Aerial survey of St Andrews Bay elephant seal colony, Mirounga leonina, during the 2023/24 season conducted using a remotely piloted aerial system (RPAS). The aerial survey was conducted as part of the Darwin Plus (DPLUS) 214 project: Southwest Atlantic Elephant Seal Population Assessment (SAESPA). Dataset includes the original images and log files, the original RINEX GNSS (global navigation satellite system) base station files, the post-processed global navigation satellite system and imagery data, along with the resulting georeferenced DSM (digital surface model) and an orthorectified mosaic of the imagery. This dataset is from flight number DPLUS_214_30 which was carried out on 2024-11-01. This work was supported by the Overseas Territories Environment and Climate Fund under Grant Darwin Plus ref: DPLUS214: Southwest Atlantic Elephant Seal Population Assessment (SAESPA).
Aerial survey of St Andrews Bay, South Georgia, elephant seal colony during the 2024/2025 season, flight DLPUS_214_22
Aerial survey of St Andrews Bay elephant seal colony, Mirounga leonina, during the 2023/24 season conducted using a remotely piloted aerial system (RPAS). The aerial survey was conducted as part of the Darwin Plus (DPLUS) 214 project: Southwest Atlantic Elephant Seal Population Assessment (SAESPA). Dataset includes the original images and log files, the original RINEX GNSS (global navigation satellite system) base station files, the post-processed global navigation satellite system and imagery data, along with the resulting georeferenced DSM (digital surface model) and an orthorectified mosaic of the imagery. This dataset is from flight number DPLUS_214_22 which was carried out on 2024-10-27. This work was supported by the Overseas Territories Environment and Climate Fund under Grant Darwin Plus ref: DPLUS214: Southwest Atlantic Elephant Seal Population Assessment (SAESPA).
Methodology: Data collection: Aerial survey conducted using a RPAS (AgEagle eBee X). The survey consisted of collecting overlapping imagery of the target area, with a forward overlap of 95%. The target altitude during acquisition was 95 m AGL (above ground level). During the aerial surveys a geodetic Trimble GNSS base station receiver collected data. Post flight processing: Precise point positioning (PPP) was undertaken using the online Canadian Spatial Reference System PPP tool to generate the position of the base station during the survey and which was then used to process the eBee X's onboard GNSS receiver using post-processed kinematic (PPK) processing to improve the accuracy of the camera centres captured during flight. Photogrammetry / final outputs: Structure from motion photogrammetry was used to determine the exterior orientation (x, y, z, omega, phi and kappa (or roll, pitch, yaw)) of the camera during image acquisition using a combination of the onboard GNSS solution and common points within the images. Once the camera centre and orientation for each image was determined, a dense point cloud was extracted of the surface within the target area. The dense point cloud was then transformed into a DSM (in metres), which in turn was used to resample the images onto a map projection, removing camera perspective and terrain distortions, in a process called ortho-rectification and resulted in a single complete mosaic of the imagery. Data collection: Data collection equipment: UAV: Manufacturer: AgEagle Model: eBee X Sensor: AgEagle SODA 3D Flight management software: eMotion (version 3.23.0) GNSS base station: Manufacturer: Trimble Receiver model: R9s Antenna model: Zyphr Model 2 Post-flight processing software: Canadian Spatial Reference System Precise Point Positioning (CSRS-PPP, Version 3) eMotion (version 3.23.0) Photogrammetry software: Pix4D (version 4.9.0.). Data quality: Coordinate reference system for outputs: Projection: UTM Zone 23S Horizontal datum: WGS84 Vertical datum: MSL (mean sea level), EGM2008 geoid Resolution of final outputs: DSM (2.1 cm) Orthorectified mosaic (2.1 cm) Calibration accounted for in processing.
Cosmogenic 10Be data and calculated surface exposure ages for 41 cobbles and boulders collected from nunataks adjacent to Larter and Lucchitta glaciers in the Hudson Mountains, West Antarctica
This dataset consists of measurements of cosmogenic 10Be in quartz from a set of 41 erratic cobbles and boulders collected from the surfaces of nunataks in West Antarctica. The erratics were collected during the 2019-20 Antarctic field season from the Hudson Mountains, which are situated immediately to the north of Pine Island Glacier. The samples in this dataset were collected from nunataks (Webber Nunatak, Mount Moses, Slusher Nunatak, Dean Nunataks, Wold Nunatak, and Siren Rock) located adjacent to Larter and Lucchitta glaciers which dissect the area. The dataset includes cosmogenic nuclide (10Be) exposure ages and all field (sample locations and elevations) and analytical laboratory (quartz and beryllium carrier masses, 10Be/9Be ratios) data for field samples and procedural blanks required to calculate the exposure ages. This project was funded by Natural Environment Research Council (NERC: Grants NE/S006710/1, NE/S006753/1, and NE/S00663X/1) and National Science Foundation (NSF: Grant OPP 2317097). Australian Nuclear Science and Technology Organisation (ANSTO) Centre for Accelerator Science award AP12872, through the National Collaborative Research Infrastructure Strategy (NCRIS).
EARTH SCIENCE > Land Surface > Geomorphology > Glacial Landforms/Processes
This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/
and supplied under Open Government Licence v.3 ().
Methodology: Samples from erratic cobbles and boulders perched on presently exposed mountain peaks next to Larter and Lucchitta glaciers were collected by Dr Joanne S Johnson (British Antarctic Survey) during the 2019-20 austral summer. Latitude, altitude, and elevation measurements of the location of the samples were made using a Javad Triumph II GPS receiver. The sample heights above ellipsoid were corrected to orthometric heights (height above geoid EGM08 in metres above sea level) using Precise Point Positioning software. Laboratory chemistry was conducted in the CosmIC Laboratory at Imperial College London, UK. Quartz purification followed the methods of Kohl and Nishiizumi (1992). Isotope dilution chemistry and beryllium purification used the methods of Corbett et al. (2016). 10Be/9Be ratios were measured by accelerator mass spectrometry at ANSTO using the methods of Wilcken et al. (2017; 2022) and normalised to the standard values of Nishiizumi et al. (2007). Laboratory data were then converted to 10Be concentrations and, finally, exposure ages, using an online exposure age calculator (Balco et al., 2008). Exposure ages were calculated using the default global production rate calibration dataset and two different cosmogenic nuclide scaling methods known as St (Stone, 2000) and LSDn (Lifton et al., 2014). Data quality: Quartz purity was tested using inductively coupled plasma optical emission spectrometry (ICP-OES). For isotope dilution chemistry, one procedural blank (carrier-only) was processed for every 11 samples, and each batch of samples is assigned a batch number. The procedural blank used to correct the 10Be concentration of each sample is dependent on the time period during which it was processed in the CosmIC Laboratory (processed_blank_data.csv). Beryllium was extracted from samples in batch one at the same time as the samples presented in Balco et al. (2023), Nichols et al. (2023), and Marschalek et al. (2024). Therefore, the blank value used to correct the 10Be concentrations in batch one is the same as that used to correct 10Be concentrations in the aforementioned studies (the mean and standard deviation of 12 batches of samples, 10Be/9Be = 1.73 x 10-15 ± 4.82 x 10-16; 30287 ± 8456 10Be atoms; processed_blank_data.csv). Samples in batch two were processed in the year following those in batch one. Therefore, samples in batch two are corrected with a different blank value (the mean and standard deviation of two process blanks, BLK300822 and BLK050922, 10Be/9Be = 2.71 x10-15 ± 3.61 x 10-16, 47410 ± 6255 10Be atoms; processed_blank_data.csv). Samples in batches three, four, and five were processed later in the same year as those in batch two. A batch-specific blank value is therefore used to correct the 10Be concentrations of samples in batches three (BLK120922, 10Be/9Be = 2.13 x10-15 ± 3.41 x 10-16, 37088 ± 5939 10Be atoms), four (BLK260922, 10Be/9Be = 1.86 x10-15 ± 3.88 x 10-16, 32550 ± 6786 10Be atoms), and five (BLK041022, 10Be/9Be = 4.50 x 10-15 ± 5.31 x 10-16, 78589 ± 9262 10Be atoms; processed_blank_data.csv). In all cases, uncertainties in the sample and blank values are propagated in quadrature.
TDR tracks of chinstrap penguins at the South Orkneys Islands, 2011-2019 [Version 2.0]
This dataset comprises Time-Depth Recorder (TDR) tracks of chinstrap penguins, Pygoscelid antarcticus, at the South Orkney Islands (Signy, Monroe, Powell and Laurie Island) from 2011 to 2019. Chinstrap penguins were fitted with TDR tags between December to January (austral summer) to better understand their movement for seabird conservation and management. The data includes temperature and pressure at specified intervals for deployed tags, with additional metadata on the morphology of the birds, their deployment, and breeding. Work was carried out by personnel at the British Antarctic Survey (BAS) and was funded by Natural Environment Research Council (UK) core funding to BAS. This is an updated version of a previous dataset. There have been additional tracks included with further quality control carried out.
Signy Island, South Orkney Islands Antarctica
Monroe Island, South Orkney Islands Antarctica
Powell Island, South Orkney Islands Antarctica
Laurie Island, South Orkney Islands Antarctica
EARTH SCIENCE > Biosphere > Ecological Dynamics > Diurnal Movements
EARTH SCIENCE > Biosphere > Ecological Dynamics > Feeding Habitat
EARTH SCIENCE > Biosphere > Ecological Dynamics > Food-web Dynamics
EARTH SCIENCE > Biosphere > Ecological Dynamics > Indicator Species
EARTH SCIENCE > Biosphere > Ecological Dynamics > Range Changes
EARTH SCIENCE > Biosphere > Ecological Dynamics > Trophic Dynamics
EARTH SCIENCE > Biosphere > Ecological Dynamics
This data is governed by the NERC data policy and supplied under Open Government Licence v.3
There are no access constraints on this dataset.
Methodology: Temperature-Depth recorder (TDR) devices were fitted to 326 chinstrap penguins on Signy Island between December and January, over four seasons between 2011 to 2019. Breeding penguins were caught during incubation, brood and creche periods and fitted with TDR loggers (Lotek LAT 1810 or CEFAS G5s) using Tesa tape and a two-part quick-setting glue. Handling time did not exceed 10 minutes for deployment and 5 minutes for retrieval. Loggers were always less than 1 percent of the bird's body mass. Devices were retrieved on average after 4.7 days. Data includes temperature, pressure and a timestamp. The number of deployed tags with data per year are as follows: Signy Island: 2011 -2012: 11 2013-2014: 25 2015-2016: 28 2018-2019: 59 Laurie Island: 2011-2012: 60 Monroe Island: 2015-2016: 65 Powell Island: 2013-2014: 68 Data collection: Lotek LAT 1810 (6 g in air, 38 x 11 mm) CEFAS G5s (either 2.7 g in air, 31 x 8 mm; or 6.5 g in air, 35 x 12 mm) Data quality: Files were consolidated to include only the timestamp, pressure in dBars, and temperature in degrees Celsius. When known, the temperature was recorded as internal, external or both. If not known, the temperature is recorded as 'Temperature'. Internal temperature relates to the sensor inside of the instrument, whereas the external temperature means the sensor was on the outside of the instrument. This is a version 2 of a previous dataset, that included GPS and TDR tags together. Errors found in the metadata and data were rectified in this version, which also includes a broader spatial and temporal coverage of tracks. Where the sex of the bird was not known, 'U' was used in the metadata file.
GPS tracks of chinstrap penguins at the South Orkney Islands, 2011-2019 [Version 2.0]
This dataset comprises Global Positioning System (GPS) data for chinstrap penguins, Pygoscelid antarcticus, at the South Orkney Islands (Signy, Monroe, Powell and Laurie island) from 2011 to 2019. Chinstrap penguins were fitted with GPS tags between December to January (austral summer) to better understand their movement for seabird conservation and management. The data includes GPS positions at specified intervals for deployed tags, with additional metadata on the morphology of the birds, their deployment, and breeding. Work was carried out by personnel at the British Antarctic Survey (BAS) and was funded by Natural Environment Research Council (UK) core funding to BAS. This is an updated version of a previous dataset. There have been additional tracks included with further quality control carried out.
Methodology: Global Positioning system (GPS) devices were fitted to 313 chinstrap penguins at the South Orkney Islands (listed below) over four seasons between December and January, 2011 to 2019. Breeding penguins were caught during incubation, brood and creche periods and fitted with GPS loggers (Sirtrack Fastloc) using Tessa tape and a two-part quick-setting glue. Handling time did not exceed 10 minutes for deployment and 5 minutes for retrieval. Loggers were always less than 1 percent of the bird's body mass. Devices were retrieved on average after 4.7 days. GPS loggers recorded locations every 4 minutes, with longer intervals if the GPS could not connect to satellites (when the bird was underwater). GPS data includes a timestamp along with the latitude and longitude in decimal degrees. The number of deployed tags per year are as follows: Signy Island: 2011 -2012: 11 2013-2014: 25 2015-2016: 28 2018-2019: 59 Laurie Island: 2011-2012: 60 Monroe Island: 2015-2016: 65 Powell Island: 2013-2014: 68 Data collection: Sirtrack Fastloc 33 F2G133A (38.4 g in air, 65 x 28 x 22 mm) with 40 mm whip antenna Sirtrack Fastloc 33 F3G133A (31.0 g in air, 63 x 24 x 22 mm) with 40 mm whip antenna Data quality: Values which were null or reported as 0.00 in the latitude and longitude columns were removed. This is a version 2 of a previous dataset, that included GPS and TDR tags together. Errors found in the metadata and data were rectified in this version, which also includes a broader spatial and temporal coverage of tracks. Where the sex of the bird was not known, 'U' was used in the metadata file.
TDR tracks gentoo penguins at Signy Island, South Orkneys Islands, 2011-2016
This dataset comprises Time-Depth Recorder (TDR) tracks for gentoo penguins, Pygoscelid papua, at Signy Island, South Orkneys Islands, from December 2011 to January 2016 (austral summer). Gentoo penguins were fitted with TDR tags at Signy Island to better understand their movement for seabird conservation and management. The data includes temperature and pressure at specified intervals for deployed tags, with additional metadata on the morphology of the birds, their deployment, and breeding. Work was carried out by personnel at the British Antarctic Survey (BAS) and was funded by Natural Environment Research Council (UK) core funding to BAS.
Methodology: Temperature-Depth recorder (TDR) devices were fitted to 11 gentoo penguins on Signy Island in December, over two seasons between 2011 to 2016. Breeding penguins were caught during incubation and guard periods and fitted with TDR loggers (Lotek LAT 1810 or CEFAS G5s) using Tesa tape and a two-part quick-setting glue. Handling time did not exceed 10 minutes for deployment and 5 minutes for retrieval. Loggers were always less than 1 percent of the bird's body mass. Devices were retrieved on average after 4.7 days. GPS loggers recorded locations every 4 minutes, with longer intervals if the GPS could not connect to satellites (when the bird was underwater). The number of deployed and retrieved tags per year are as follows: 2013-2014: 10 2015-2016: 1 Data collection: Lotek LAT 1810 (6 g in air, 38 x 11 mm) CEFAS G5s (either 2.7 g in air, 31 x 8 mm; or 6.5 g in air, 35 x 12 mm) Data quality: Files were consolidated to include only the timestamp, pressure in dBars, and temperature in degrees Celsius. When known, the temperature was recorded as internal, external or both. If not known, the temperature is recorded as 'Temperature'. Internal temperature relates to the sensor inside of the instrument, whereas the external temperature means the sensor was on the outside of the instrument. Where the sex of the bird was not known, 'U' was used in the metadata file.
Australian Nuclear Science and Technology Organisation
TDR tracks of Adelie penguins at Signy Island, South Orkneys Islands, 2011-2016
This dataset comprises Time-Depth Recorder (TDR) tracks for Adelie penguins, pygoscelid adeliae, at Signy Island, South Orkneys Islands, from December 2011 to January 2016 (austral summer). Adelie penguins were fitted with TDR tags at Signy Island to better understand their movement for seabird conservation and management. The data includes temperature and pressure at specified intervals for deployed tags, with additional metadata on the morphology of the birds, their deployment, and breeding. Work was carried out by personnel at the British Antarctic Survey (BAS) and was funded by Natural Environment Research Council (UK) core funding to BAS.
Methodology: Temperature-Depth recorder (TDR) devices were fitted to 51 Adelie penguins on Signy Island over three seasons between December and February, 2011 to 2019. Breeding penguins were caught during incubation, brood and creche periods and fitted with TDR loggers (Lotek LAT 1810 or CEFAS G5s) using Tesa tape and a two-part quick-setting glue. Handling time did not exceed 10 minutes for deployment and 5 minutes for retrieval. Loggers were always less than 1 percent of the bird's body mass. Devices were retrieved on average after 4.7 days. Data includes temperature, pressure and a timestamp. The number of tags with data per year are as follows: 2011-2012: 12 2013-2014: 23 2015-2016: 11 Data collection: Lotek LAT 1810 (6 g in air, 38 x 11 mm) CEFAS G5s (either 2.7 g in air, 31 x 8 mm; or 6.5 g in air, 35 x 12 mm) Data quality: Files were consolidated to include only the timestamp, pressure in dBars, and temperature in degrees Celsius. When known, the temperature was recorded as internal, external or both. If not known, the temperature is recorded as 'Temperature'. Internal temperature relates to the sensor inside of the instrument, whereas the external temperature means the sensor was on the outside of the instrument. Where the sex of the bird was not known, 'U' was used in the metadata file.
GPS tracks of Adelie penguins at Signy Island, South Orkneys Islands, 2011-2016
This dataset comprises Global Positioning System (GPS) data for Adelie penguins, Pygoscelid adeliae, at Signy Island, South Orkneys Islands, from December 2011 to January 2016 (austral summer). Adelie penguins were fitted with GPS tags at Signy Island to better understand their movement for seabird conservation and management. This data includes GPS positions at specified intervals for deployed tags, with additional metadata on the morphology of the birds, their deployment and breeding. Work was carried out by personnel at the British Antarctic Survey (BAS) and was funded by Natural Environment Research Council (UK) core funding to BAS.
Methodology: Global Positioning system (GPS) devices were fitted to 51 Adelie penguins on Signy Island between December and February, over three seasons between the years 2011 to 2019. Breeding penguins were caught during incubation, brood and creche periods and fitted with GPS loggers (Sirtrack Fastloc) using Tessa tape and a two-part quick-setting glue. Handling time did not exceed 10 minutes for deployment and 5 minutes for retrieval. Loggers were always less than 1 percent of the bird's body mass. Devices were retrieved on average after 4.7 days. GPS loggers recorded locations every 4 minutes, with longer intervals if the GPS could not connect to satellites (when the bird was underwater). The number of retrieved tags with data per year are as follows: 2011-2012: 11 2013-2014: 23 2015-2016: 11 Data collection: Sirtrack Fastloc 33 F2G133A (38.4 g in air, 65 x 28 x 22 mm) with 40 mm whip antenna Sirtrack Fastloc 33 F3G133A (31.0 g in air, 63 x 24 x 22 mm) with 40 mm whip antenna Data quality: Files were included the timestamp, latitude and longitude in decimal degrees. Any NaN or '0.00' values (in latitude and longitude) were removed. When the sex of the bird was not known, 'U' was used in the metadata file.
GPS tracks gentoo penguins at Signy Island, South Orkneys Islands, 2011-2016
This dataset comprises Global Positioning System (GPS) data for gentoo penguins, Pygoscelid papua, at Signy Island, South Orkneys Islands, from December 2011 to January 2016 (austral summer). Gentoo penguins were fitted with GPS tags at Signy Island to better understand their movement for seabird conservation and management. This data includes GPS positions at specified intervals for deployed tags, with additional metadata on the morphology of the birds, their deployment and breeding. Work was carried out by personnel at the British Antarctic Survey (BAS) and was funded by Natural Environment Research Council (UK) core funding to BAS.
Methodology: Global Positioning system (GPS) devices were fitted to 11 gentoo penguins on Signy Island in December, over two seasons between 2011 to 2016. Breeding penguins were caught during incubation and guard periods and fitted with GPS loggers (Sirtrack Fastloc) using Tessa tape and a two-part quick-setting glue. Handling time did not exceed 10 minutes for deployment and 5 minutes for retrieval. Loggers were always less than 1 percent of the bird's body mass. Devices were retrieved on average after 4.7 days. GPS loggers recorded locations every 4 minutes, with longer intervals if the GPS could not connect to satellites (when the bird was underwater). The number of deployed and retrieved tags per year are as follows: 2013-2014: 10 2015-2016: 1 Data collection: Sirtrack Fastloc 33 F2G133A (38.4 g in air, 65 x 28 x 22 mm) with 40 mm whip antenna Sirtrack Fastloc 33 F3G133A (31.0 g in air, 63 x 24 x 22 mm) with 40 mm whip antenna Data quality: Files were included the timestamp, latitude and longitude in decimal degrees. Any NaN or '0.00' values (in latitude and longitude) were removed. Where the sex of the bird was not known, 'U' was used in the metadata file.