README This data file is published by the Movebank Data Repository (www.datarepository.movebank.org). As of the time of publication, a version of the published animal tracking data set can be viewed on Movebank (www.movebank.org) in the study "At-sea distribution Antarctic Petrel, Antarctica 2012 (data from Descamps et al. 2016)" (Movebank Study ID 180290122). Individual attributes in the data files are defined below and in the Movebank Attribute Dictionary, available at www.movebank.org/node/2381. This data package includes the following data files: At-sea distribution Antarctic Petrel, Antarctica 2012 (data from Descamps et al. 2016)-geolocator tracks.csv At-sea distribution Antarctic Petrel, Antarctica 2012 (data from Descamps et al. 2016)-gps.csv At-sea distribution Antarctic Petrel, Antarctica 2012 (data from Descamps et al. 2016)-light levels.csv.zip At-sea distribution Antarctic Petrel, Antarctica 2012 (data from Descamps et al. 2016)-reference-data.csv These data are described in the following written publication: Descamps S, Tarroux A, Cherel Y, Delord K, Godø OR, Kato A, Krafft BA, Lorentsen S-H, Ropert-Coudert Y, Skaret G, Varpe Ø (2016) At-sea distribution and prey selection of Antarctic petrels and commercial krill fisheries. PLoS ONE 11(8): e0156968. doi:10.1371/journal.pone.0156968 Data package citation: Descamps S, Tarroux A, Cherel Y, Delord K, Godø OR, Kato A, Krafft BA, Lorentsen S-H, Ropert-Coudert Y, Skaret G, Varpe Ø (2016) Data from: At-sea distribution and prey selection of Antarctic petrels and commercial krill fisheries. Movebank Data Repository. doi:10.5441/001/1.q4gn4q56 ----------- Terms of Use This data file is licensed by the Creative Commons Zero (CC0 1.0) license. The intent of this license is to facilitate the re-use of works. The Creative Commons Zero license is a "no rights reserved" license that allows copyright holders to opt out of copyright protections automatically extended by copyright and other laws, thus placing works in the public domain with as little legal restriction as possible. However, works published with this license must still be appropriately cited following professional and ethical standards for academic citation. We highly recommend that you contact the data creator if possible if you will be re-using or re-analyzing data in this file. Researchers will likely be interested in learning about new uses of their data, might also have important insights about how to properly analyze and interpret their data, and/or might have additional data they would be willing to contribute to your project. Feel free to contact us at support@movebank.org if you need assistance contacting data owners. See here for the full description of this license http://creativecommons.org/publicdomain/zero/1.0 ----------- Data Attributes These definitions come from the Movebank Attribute Dictionary, available at www.movebank.org/node/2381. animal ID: An individual identifier for the animal, provided by the data owner. This identifier can be a ring number, a name, the same as the associated tag ID, etc. If the data owner does not provide an Animal ID, an internal Movebank animal identifier may sometimes be shown. example: 91876A, Gary same as: individual-local-identifier animal reproductive condition: The reproductive condition of the animal at the beginning of the deployment. example: non-reproductive, pregnant attachment type: The way a tag is attached to an animal. Values are chosen from a controlled list: collar: The tag is attached by a collar around the animal's neck. glue: The tag is attached to the animal using glue. harness: The tag is attached to the animal using a harness. implant: The tag is placed under the skin of the an animal. tape: The tag is attached to the animal using tape. other: user specified data processing software: Name of the software program/s, scripts, etc. used to process raw sensor data and derive location estimates. example: BASTrack deploy off latitude: The geographic latitude of the location where the deployment ended (intended primarily for instances in which the animal release and tag retrieval locations have higher accuracy than those derived from sensor data). example: -38.6866 units: decimal degrees, WGS84 reference system deploy off longitude: The geographic longitude of the location where the deployment ended (intended primarily for instances in which the animal release and tag retrieval locations have higher accuracy than those derived from sensor data). example: 146.3104 units: decimal degrees, WGS84 reference system deploy off timestamp: The timestamp when the tag deployment ended. example: 2009-10-01 12:00:00.000 format: yyyy-MM-dd HH:mm:ss.sss units: UTC (Coordinated Universal Time) or GPS time, which is a few leap seconds different from UTC same as: deploy off date deploy on latitude: The geographic latitude of the location where the animal was released (intended primarily for instances in which the animal release and tag retrieval locations have higher accuracy than those derived from sensor data). example: 27.3516 units: decimal degrees, WGS84 reference system deploy on longitude: The geographic longitude of the location where the animal was released (intended primarily for instances in which the animal release and tag retrieval locations have higher accuracy than those derived from sensor data). example: -97.3321 units: decimal degrees, WGS84 reference system deploy on timestamp: The timestamp when the tag deployment started. example: 2008-08-30 18:00:00.000 format: yyyy-MM-dd HH:mm:ss.sss units: UTC (Coordinated Universal Time) or GPS time, which is a few leap seconds different from UTC same as: deploy on date deployment end type: A categorical classification of the tag deployment end. Values are chosen from a controlled list: captured: The tag remained on the animal but the animal was captured or confined. dead: The deployment ended with the death of the animal that was carrying the tag. equipment failure: The tag stopped working. fall off: The attachment of the tag to the animal failed, and it fell of accidentally. other released: The tag remained on the animal but the animal was released from captivity or confinement. removal: The tag was purposefully removed from the animal. unknown: The deployment ended by an unknown cause. deployment ID: A unique identifier for the deployment of a tag on animal, provided by the data owner. If the data owner does not provide a Deployment ID, an internal Movebank deployment identifier may sometimes be shown. example: Jane-Tag42 event comments: Additional information about individual records or events in a data set that is not described by other reference data terms. example: we observed the animal foraging (see photo BT25) same as: comments THIS DATASET: For sensor types GPS and solar geolocator, values are x-y, where x is the projected longitude and y is the projected latitude in Polar Stereographic, standard parallel = -70. For sensor type solar geolocator raw, values are "ok" or "suspect" from BASTrak .lig files, used to indicate whether the record is ok or suspect. event ID: An identifier for the set of information associated with each record or event in a data set. A unique event ID is assigned to every time-location or other time-measurement record in Movebank. example: 6340565 units: none geolocator calibration: A description of how solar geolocators were calibrated. example: We calibrated the geolocators while deployed on the animals over a two-week period in their breeding site (< 5 km^2). See Jameson et al. (2011) for additional details. geolocator light threshold: The light threshold used for location estimation with solar geolocators. example: 16 units: undefined geolocator sun elevation angle: The sun elevation angle used for location estimation with solar geolocators. example: -2.86 units: degrees latitude (decimal degree): The geographic longitude of a location along an animal track as estimated by the processed sensor data. Positive values are east of the Greenwich Meridian, negative values are west of it. example: -121.1761111 units: decimal degrees, WGS84 reference system same as: location lat life stage: The age class or life stage of the animal at the beginning of the deployment. Can be years or months of age or terms such as "adult", "subadult" and "juvenile". Units should be defined in the values (e.g. "2 years"). example: juvenile, adult units: Any units should be defined in the remarks. light level: Light-level values measured by a solar geolocator. example: 28 units: undefined same as: gls:light level longitude (decimal degree): The geographic longitude of a location along an animal track as estimated by the processed sensor data. Positive values are east of the Greenwich Meridian, negative values are west of it. example: -121.1761111 units: decimal degrees, WGS84 reference system same as: location long manipulation type: The way in which the animal was manipulated during the deployment. Additional details about the manipulation can be provided using manipulation comments. Values are chosen from a controlled list: confined: The animal's movement was restricted to within a defined area. none: The animal received no treatment other than the tag attachment. relocated: The animal was released from a site other than the one at which it was captured. manipulated other: The animal was manipulated in some other way, such as a physiological manipulation. modelled: Can be used to identify locations or light level values that are modelled, interpolated, or otherwise added or changed based on the original location or light level estimates from the original data collection system. These may include movement model outputs, locations added to create a dataset with equal time intervals, etc. Allowed values are TRUE or FALSE. THIS DATASET: In order to remove any potential temporal pseudo-replication in the data when estimating the kernel UDs, all GPS data were rediscretized at 30-min interval using the function redisltraj in the R package adehabitatLT (Calenge 2006; Calenge et al. 2009). The published GPS records here are the rediscretized data. ring ID: A number or color scheme for a band or ring attached to the animal. example: 26225 units: none same as: animal ring id sensor type: The type of sensor with which data were collected. Values are chosen from a controlled list: acceleration: The sensor collects acceleration data. accessory measurements: The sensor collects accessory measurements, such as battery voltage. Argos Doppler shift: The sensor is using Argos Doppler shift for determining position. barometer: The sensor records air or water pressure. bird ring: The animal is identified by a ring that has a unique ID. GPS: The sensor uses GPS to find location and stores these. magnetometer: The sensor records the magnetic field. natural mark: The animal is identified by a natural marking. radio transmitter: The sensor is a classical radio transmitter. solar geolocator: The sensor collects light levels, which are used to determine position (for processed locations). solar geolocator raw: The sensor collects light levels, which are used to determine position (for raw light-level measurements). study: The name of the study in Movebank in which data are stored. study site: The name of the deployment site, for example a field station or colony. example: Pickerel Island North study-specific measurement: Values for a study-specific attribute. example: 1112:01 units: undefined THIS DATASET: For GPS sensor type, values indicate the study season: 2011-2012 (1112), 2012-2013 (1213), or 2013-2014 (1314). tag ID: A unique identifier for the tag, provided by the data owner. If the data owner does not provide a tag ID, an internal Movebank tag identifier may sometimes be shown. example: 2342, ptt_4532 same as: tag local identifier tag manufacturer name: The company or person that produced the tag. example: Holohil same as: manufacturer tag mass: The mass of the tag. example: 24 units: grams tag model: The model of the tag. example: T61 same as: model tag readout method: The way the data are received from the tag. Values are chosen from a controlled list: satellite: Data are transferred via satellite. phone network: Data are transferred via a phone network, such as GSM or AMPS. other wireless: Data are transferred via another form of wireless data transfer, such as a VHF radio transmitter/receiver. tag retrieval: The tag must be physically retrieved in order to obtain the data. tag technical specification: Values for a tag-specific technical attribute. example: 8.31, YES units: undefined same as: tag tech. spec. THIS DATASET: For GPS sensor type data, values give the track number for the bird-season. For solar geolocator raw sensor type, values are the time as the number of days since 1/1/1900. taxon: The scientific name of the species on which the tag was deployed, as defined by the Integrated Taxonomic Information System (ITIS, www.itis.gov). If the species name can not be provided, this should be the lowest level taxonomic rank that can be determined and that is used in the ITIS taxonomy. Additional information can be provided using the term taxon detail. example: Buteo swainsoni same as: species, animal taxon, individual taxon canonical name timestamp: The date and time a sensor measurement was taken. example: 2008-08-14 18:31:00.000 format: yyyy-MM-dd HH:mm:ss.sss units: UTC (Coordinated Universal Time) or GPS time, which is a few leap seconds different from UTC visible: Determines whether an event is visible on the Movebank Search map. Values are calculated automatically, with FALSE indicating that the event has been marked as an outlier by manually marked outlier or algorithm marked outlier. Allowed values are TRUE or FALSE. ----------- More Information For more information about this repository, see www.movebank.org/node/15294, the FAQ at www.movebank.org/node/2220, or contact us at support@movebank.org.