README This data file is published by the Movebank Data Repository (www.datarepository.movebank.org). As of the time of publication, a version of this published animal tracking dataset can be viewed on Movebank (www.movebank.org) in the study "Biotelemetry of Bewick's swans" (Movebank Study ID 1030734949). Individual attributes in the data files are defined below, in the NERC Vocabulary Server at http://vocab.nerc.ac.uk/collection/MVB and in the Movebank Attribute Dictionary at www.movebank.org/node/2381. Metadata describing this data package are maintained at https://datacite.org. This data package includes the following data files: Biotelemetry of Bewick's swans-acceleration.csv Biotelemetry of Bewick's swans-accessory.csv Biotelemetry of Bewick's swans-gps.csv Biotelemetry of Bewick's swans-reference-data.csv Data package citation: Nuijten RJM, Gerrits T, de Vries PP, Müskens GJDM, Nolet BA (2020) Data from: Less is more: on-board lossy compression of accelerometer data increases biologging capacity. Movebank Data Repository. https://doi.org/10.5441/001/1.8ms7mm80 These data are described in the following written publication: Nuijten RJM, Gerrits T, Shamoun-Baranes J, Nolet BA (2020) Less is more: on-board lossy compression of accelerometer data increases biologging capacity. Journal of Animal Ecology 89(1): 237-247. https://doi.org/10.1111/1365-2656.13164 The summary statistics calculated from these data and used in the analysis in Nuijten et al. (2020) are published in the following data package: Nuijten R, Gerrits T, Shamoun-Baranes J, Nolet B (2019), Less is more: on-board lossy compression of accelerometer data increases biologging capacity v3. Dryad Dataset. https://doi.org/10.5061/dryad.6djh9w0x9 ----------- 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 http://vocab.nerc.ac.uk/collection/MVB and www.movebank.org/node/2381. acceleration axes: Indicates the enabled accelerometer axes. example: 'XYZ' units: none entity described: event acceleration sampling frequency per axis: The sampling frequency for one axis of an accelerometer within a burst. example: 5.93 units: Hz entity described: event accelerations raw: Burst of acceleration sensor values. example: -0.609 -0.094 0.820 -0.562 -0.117 0.820 -0.586 -0.141 0.796 -0.679 -0.117 0.750 -0.656 -0.117 0.773 -0.586 -0.187 0.867 -0.468 -0.234 0.656 -0.960 0.094 0.609 -1.148 0.164 0.492 -0.773 0.164 0.398 -0.843 0.351 0.515 -1.312 0.468 0.468 units: none entity described: event algorithm marked outlier: Identifies events marked as outliers using a user-selected filter algorithm in Movebank. Outliers have the value TRUE. units: none entity described: event The Value Range Filter implemented in Movebank was used to flag records with "GPS satellite count" less than 3 and "location error numerical" greater than 100. animal ID: An individual identifier for the animal, provided by the data owner. If the data owner does not provide an Animal ID, an internal Movebank animal identifier is sometimes shown. example: 91876A, Gary units: none entity described: individual same as: individual local identifier animal 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'. Best practice is to define units in the values if needed (e.g. '2 years'). example: juvenile, adult units: not defined entity described: deployment animal sex: The sex of the animal. Allowed values are m = male f = female format: controlled list entity described: individual animal 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 format: controlled list entity described: individual same as: individual taxon canonical name animal taxon detail: A more specific name and/or reference for the taxon name provided by 'animal taxon'. This can be used, for example, to specify a subspecies or a taxon not supported by the ITIS. example: Calonectris diomedea borealis (Cory, 1881) units: none entity described: individual 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 animal tape = The tag is attached to the animal using tape other = user specified format: controlled list entity described: deployment 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 or GPS time entity described: deployment same as: deploy off date 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 or GPS time entity described: deployment same as: deploy on date 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 units: none entity described: deployment duty cycle: Remarks associated with the duty cycle of a tag during the deployment, describing the times it is on/off and the frequency at which it transmits or records data. Units and time zones should be defined in the remarks. example: 15-min fixes from 8:00-18:00 local time (0:00-10:00 UTC) units: not defined entity described: deployment event ID: An identifier for the set of values associated with each event, i.e. sensor measurement. A unique event ID is assigned to every time-location or other time-measurement record in Movebank. If multiple measurements are included within a single row of a data file, they will share an event ID. If users import the same sensor measurement to Movebank multiple times, a separate event ID will be assigned to each. example: 6340565 units: none entity described: event GPS fix type: The type of GPS fix. To import non-numeric characters use 'GPS fix type raw'. Allowed values are 1 = no fix 2 = 2D fix (altitude typically not valid) 3 = 3D fix (altitude typically valid) format: controlled list units: none entity described: event GPS maximum signal strength: The signal reception strength of the strongest GPS satellite of those used to calculate the location estimate. example: 39 units: dBm entity described: event GPS satellite count: The number of GPS satellites used to estimate the location. example: 8 units: none entity described: event GPS time to fix: The time required to obtain the GPS location fix. example: 36 units: s entity described: event ground speed: The estimated ground speed provided by the sensor or calculated between consecutive locations. example: 7.22 units: m/s entity described: event heading: The direction in which the tag is moving, in decimal degrees clockwise from north, as provided by the sensor or calculated between consecutive locations. Values range from 0-360: 0 = north, 90 = east, 180 = south, 270 = west. example: 315.88 units: degrees clockwise from north entity described: event height above mean sea level: The estimated height of the tag above mean sea level, typically estimated by the tag. If altitudes are calculated as height above an ellipsoid, use 'height above ellipsoid'. example: 34 units: m entity described: event location error numerical: An estimate of the horizontal error of the location including only numbers. (If the error estimates include non-numerical characters such as '>' use 'location error text'.) These values can be described using 'location error percentile' and 'location accuracy comments'. example: 50 units: m entity described: event location lat: The geographic longitude of the location as estimated by the sensor. Positive values are east of the Greenwich Meridian, negative values are west of it. example: -41.0982423 units: decimal degrees, WGS84 reference system entity described: event location long: The geographic longitude of the location as estimated by the sensor. Positive values are east of the Greenwich Meridian, negative values are west of it. example: -121.1761111 units: decimal degrees, WGS84 reference system entity described: event manipulation type: The way in which the animal was manipulated during the deployment. 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. format: controlled list entity described: deployment sensor type: The type of sensor with which data were collected. All sensors are associated with a tag id, and tags can contain multiple sensor types. Each event record in Movebank is assigned one sensor type. If values from multiple sensors are reported in a single event, the primary sensor is used. 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 uses Argos Doppler shift to determine position barometer = The sensor records air or water pressure bird ring = The animal is identified by a band or ring that has a unique identifier GPS = The sensor uses GPS to determine location magnetometer = The sensor records the magnetic field natural mark = The animal is identified by a unique natural marking orientation = Quaternion components describing the orientation of the tag are derived from accelerometer and gyroscope measurements 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) solar geolocator twilight = The sensor collects light levels, which are used to determine position (for twilights calculated from light-level measurements). format: controlled list entity described: event study name: The name of the study in Movebank. example: Coyotes, Kays and Bogan, Albany NY units: none entity described: study, event 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 units: none entity described: tag same as: tag local identifier tag manufacturer name: The company or person that produced the tag. example: Holohil units: none entity described: tag tag model: The model of the tag. example: T61 units: none entity described: tag 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 transmitter/receiver tag retrieval = The tag must be physically retrieved in order to obtain the data. format: controlled list entity described: deployment timestamp: The date and time corresponding to a sensor measurement or an estimate derived from sensor measurements. example: 2008-08-14 18:31:00.000 format: yyyy-MM-dd HH:mm:ss.SSS units: UTC or GPS time entity described: event underwater count: The number of times the tag went underwater during the current measurement period (30 minutes). example: 11 units: none entity described: event underwater time: The amount of time the tag was underwater during the current measurement period (30 minutes). example: 547 units: seconds entity described: event visible: Determines whether an event is visible on the Movebank map. Values are calculated automatically, with TRUE indicating the event has not been flagged as an outlier by 'algorithm marked outlier', 'import marked outlier' or 'manually marked outlier', or that the user has overridden the results of these outlier attributes using 'manually marked valid' = TRUE. Allowed values are TRUE or FALSE. units: none entity described: event ----------- 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.