DOI: 10.5281/zenodo.15364503
title: Data from "Fine-scale movement data reveal primarily surface foraging and nocturnal flight activity in the endangered Bermuda petrel"

description: This archive includes data files associated with the paper "Fine-scale movement data reveal primarily surface foraging and nocturnal flight activity in the endangered Bermuda petrel" currently under review in Ecology and Evolution.

These data are from tracking Bermuda Petrels (BEPE) at Nonsuch Island during the incubation period in 2023 During the 2023 field season, there were 25 deployments of biologgers on BEPE, of which 18 deployments were successful. Three logger types were used that recorded GPS, TDR, accelerometer (ACC), and/or magnetometer (MAG) data: Axy5 (Technosmart - TDR, ACC, MAG), AxyTrek (Technomsart - GPS, TDR, MAG), and Nano Fix-GEO (PathTrack - GPS). 

The file "BEPE_2023_deployments.csv" contains metadata about each deployment. Each deployment has a unique identifier (dep_id) based off of the tag id, bird id and start date. The file "BEPE_acc_behaviour_classified.csv" includes the accelerometer derived metrics and behavioural classifications described in the paper. The "raw_data" folder contains files for each individual deployment named after the dep_id field. Biologging data have been trimmed to only include data collected while devices were on birds.  All datetime data have been standardized to UTC. Data fields have been standardized across the three device types used. Each biologging file includes columns for all four data types recorded (GPS, TDR, ACC, MAG) to facilitate combining data across logger types for analysis.

##################### BEPE_2023_deployments.csv# This file contains metadata about each logger deployments, data fields are defined below####################species: textcolony: text, colony identitydep_lon: numeric, longitude of deployment in decimal degreesdep_lat:numeric, latitude of deployment in decimal degreesbird_id:  text, alphanumeric band code for bird identitytag_type: text, model of device deployeddevice_id: text, alphanumeric code for device identitydep_id: text, unique alphanumeric code for deployment derived from device_id + bird_id + time_releasedperiod: text, breeding stageyear: integer, year of deploymentnest: text, nest identitysex: text, sex of bird, male or femaletime_released: datetime, start time of deployment, YYYY-mm-dd HH:MM UTCtime_activated: datetime, start time of device, YYYY-mm-dd HH:MM UTCtime_recaptured: datetime, end time of deployment, YYYY-mm-dd HH:MM UTCmass_on: numeric, bird mass at start of deployment in grams tarsus: numeric, length of tarsus in mmgps: Y/N, indicates device included gpstdr: Y/N, indicates device included temperature depth recorderacc: Y/N, indicates device included accelerometermag: Y/N, indicates device included magnetometer

##################### BEPE_acc_behaviour_classified.csv# This file contains behavioural classifications with the derived accelerometer metrics. Data fields are defined below.####################bird_id: text, alphanumeric band code for bird identitytime_min: datetime, YYYY-mm-dd HH:MM UTC    temperature_c: numeric, temperature in degrees celsiusz_mean:    numeric, mean heave acceleration, gravityz_q10: numeric, 10th quantile of heave acceleration, gravityz_q90: numeric, 90th quantile of heave acceleration, gravity    z_iqr: numeric, inter-quartile range of heave acceleration, gravity    y_mean:    numeric, mean sway acceleration, gravityy_q10: numeric, 10th quantile of sway acceleration, gravity    y_q90: numeric, 90th quantile of sway acceleration, gravity    y_iqr: numeric, inter-quartile range of sway acceleration, gravityx_mean:    numeric, mean surge acceleration, gravityx_q10: numeric, 10th quantile of surge acceleration, gravityx_q90: numeric, 90th quantile of surge acceleration, gravityx_iqr: numeric, inter-quartile range of surge acceleration, gravitypeak_sum: numeric, sum of wing beats, count    vesba_mean: numeric, mean VeSBA acceleration, gravity    vesba_q10: numeric, 10th quantile VeSBA acceleration, gravity    vesba_q90: numeric, 90th quantile VeSBA acceleration, gravity    vesba_iqr: numeric, inter-quartile range VeSBA acceleration, gravity    vedba_mean: numeric, mean VeDBA acceleration, gravity    vedba_q10: numeric, 10th quantile VeDBA acceleration, gravity    vedba_q90: numeric, 90th quantile VeDBA acceleration, gravity    vedba_iqr: numeric, inter-quartile range VeDBA acceleration, gravity        pitch_iqr: numeric, inter-quartile range pitch, degrees    roll_iqr: numeric, inter-quartile range roll, degrees        dx_mean: numeric, mean dynamic heave acceleration, gravity    dx_q10:    numeric, 10th quantile dynamic heave acceleration, gravitydx_q90:    numeric, 90th quantile dynamic heave acceleration, gravitydx_iqr:    numeric, inter-quartile range dynamic heave acceleration, gravitydy_mean: numeric, mean dynamic sway acceleration, gravity    dy_q10:    numeric, 10th quantile dynamic sway acceleration, gravitydy_q90:    numeric, 90th quantile dynamic sway acceleration, gravitydy_iqr:    numeric, inter-quartile range dynamic sway acceleration, gravitydz_mean: numeric, mean dynamic surge acceleration, gravity    dz_q10:    numeric, 10th quantile dynamic surge acceleration, gravitydz_q90:    numeric, 90th quantile dynamic surge acceleration, gravitydz_iqr:    numeric, inter-quartile range dynamic surge acceleration, gravity    in_trip: boolean, 1 = in foraging trip, 0 = at colony    behaviour: factor, classified behaviour ("Burrow - stirring", "Burrow - still", "Burrow - active", "Flying - flap-glide", "Flying - intensive", "Flying - dynamic soaring", "Water - intensive", "Water - active", "Water - inactive")

##################### raw_data# This folder contains data files associated with each deployment, data fields are defined below####################time: timestamp, YYYY-mm-dd HH:MM:OS UTClon: numeric, GPS longitude in decimal degreeslat: numeric, GPS latitude in  decimal degreesaltitude_m: numeric, GPS altitude measured by GPS in meterssatellites: integer, GPS number of satellites contributing to GPS locationhdop: numeric, GPS horizontal dilution of precisiontemperature_c: numeric, TDR temperature in degrees celsiuspressure_mb: numeric, TDR pressure in millibarsdepth_m: numeric, TDR depth in meterswet: boolean, 1 = wet, 0 = dryx: numeric, acceleration in the x-axis (surge) in units of gravity y: numeric, acceleration in the y-axis (sway) in units of gravity z: numeric, acceleration in the z-axis (heave) in units of gravity magx: numeric, magnetic field in the x-axis (surge) in units of gaussmagy: numeric, magnetic field in the y-axis (sway) in units of gaussmagz: numeric, magnetic field in the z-axis (heave) in units of gaussbattery_v: device battery level in voltsbird_id: text, alphanumeric band code for bird identitydep_id: text, unique alphanumeric code for deployment derived from device_id + bird_id + time_releaseddeployed: 0/1 indicates which rows were recorded while the device was on the bird, undeployed data shold be excluded from analysis but includes magnetometer calibrations done prior to deployments