Data from: Simultaneous declines in summer survival of three shorebird species signals a flyway at risk

Piersma T, Lok T, Chen Y, Hassell CJ, Yang H, Boyle A, Slaymaker M, Chan Y, Melville DS, Zhang Z, Ma Z

Date Published: December 8, 2015

DOI: http://dx.doi.org/10.5061/dryad.kd00f

 

Files in this package

Content in the Dryad Digital Repository is offered "as is." By downloading files, you agree to the Dryad Terms of Service. To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data. CC0 (opens a new window) Open Data (opens a new window)

Title Individual encounter histories of bar-tailed godwits, great knots and red knots during 3 seasons
Downloaded 26 times
Description The datafile contains the encounter histories of 821 bar-tailed godwits (Limosa lapponica menzbieri), 1064 great knots (Calidris tenuirostris) and 709 red knots (Calidris canutus, primarily of the subspecies piersmai) that were individually marked and resighted at their primary non-breeding area Roebuck Bay (North-West Australia) between December 2005 and June 2013. All birds were caught using cannon-netting, individually marked with 4 coloured bands and a flag and instantly released. Resightings occurred throughout the non-breeding season. To allow the estimation of survival during three seasons of the year, the captures and resightings were pooled into three periods: Jul-Oct, Nov-Feb, Mar-Jun. The median dates of resightings during these three periods, rounded to the 1st of the month, were 1 Oct, 1 Jan and 1 Apr, hence the intervals over which survival rates were estimated were approximately 3, 3 and 6 months. The encounter histories start with the period in which the individual was captured and individually marked. Each row in the datafile represents one individual, and the three columns represent the encounter history (ch), where individuals are either seen (1) or not seen (0) during a particular period, the age of the bird when it was first captured and individually marked (age_at_ringing), distinguishing first-year (1) and older (2) birds, and the species (species), where BTG=bar-tailed godwit, GK=great knot and RK=red knot.
Download Encounter_history_data_3_seasons_3_species.txt (78.66 Kb)
Details View File Details
Title Individual encounter histories of red knots during 4 seasons
Downloaded 12 times
Description The datafile contains the encounter histories of 348 individually marked adult red knots (Calidris canutus, primarily of the subspecies piersmai) that were resighted at their primary non-breeding area Roebuck Bay and during spring stopover, in Bohai Bay (China) between May 2009 and April 2013. All birds were caught in Roebuck Bay using cannon-netting, individually marked with 4 coloured bands and a flag and instantly released. To estimate survival during four seasons, the resightings were pooled into four periods: Jul-Oct, Nov-Feb and Mar-Apr in Roebuck Bay and April-June in Bohai Bay (China). The median dates of resightings during these four periods, rounded to the 1st of the month, were 1 Oct, 1 Jan, 1 Apr and 15 May, hence the intervals over which survival rates were estimated were approximately 3, 3, 1.5 and 4.5 months. The encounter histories start with the first sighting of an individual at spring stopover in Bohai Bay. In subsequent resighting periods, the individual can either be seen (1) or not seen (0).
Download Encounter_history_data_4_seasons_red_knots.txt (6.268 Kb)
Details View File Details

When using this data, please cite the original publication:

Piersma T, Lok T, Chen Y, Hassell CJ, Yang H, Boyle A, Slaymaker M, Chan Y, Melville DS, Zhang Z, Ma Z (2016) Simultaneous declines in summer survival of three shorebird species signals a flyway at risk. Journal of Applied Ecology 53(2): 479-490. http://dx.doi.org/10.1111/1365-2664.12582

Additionally, please cite the Dryad data package:

Piersma T, Lok T, Chen Y, Hassell CJ, Yang H, Boyle A, Slaymaker M, Chan Y, Melville DS, Zhang Z, Ma Z (2016) Data from: Simultaneous declines in summer survival of three shorebird species signals a flyway at risk. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.kd00f
Cite | Share
Download the data package citation in the following formats:
   RIS (compatible with EndNote, Reference Manager, ProCite, RefWorks)
   BibTex (compatible with BibDesk, LaTeX)

Search for data

Be part of Dryad

We encourage organizations to: