Published April 18, 2019 | Version v1
Dataset Open

Sea duck network analysis dataset

  • 1. University of Rhode Island


This data file consists of habitat centroids used to construct network models for sea ducks in Eastern North America and is associated with the manuscript "Spatially-explicit network analysis reveals multi-species annual-cycle movement patterns of sea ducks" published in Ecological Applications. Columns are organized as follows:

id - unique identifier

species - species from which the centroid was obtained (BLSC = black scoter, COEI = common eider, LTDU = long-tailed duck, SUSC = surf scoter, WWSC = white-winged scoter)

stage - period of the annual cycle to which the centroid belongs (W = winter, B = breeding, S = spring staging, M = fall staging and molt, WM = winter migration, BM = breeding migration, MM = molt migration, SM = spring migration)

site - position of centroid within season (i.e., W1 = first site occupied during winter, W2 = second site occupied, etc.)

cycle - number of annual cycles following transmitter attachment (1 = first cycle after attachment, 2 = second cycle after attachment, etc.)

sex - sex of individual (M = male, F = female)

age - age of individual (HY = hatch year, SY = second year, TY = third year, ASY = after second year, ATY = after third year, AHY = after hatch year

capture_reg - general area where individual was captured

capture_subreg - specific region within capture region where individual was captured

lon - longitude of centroid

lat - latitude of centroid

duration - number of days spent at centroid

start - date of arrival at centroid

end - date of departure from centroid

jstart - Julian date of arrival at centroid

jend - Julian date of departure from centroid

season - season of annual cycle in which centroid occurred (W = winter, F = fall, B = breeding, S = spring)

year - calendar year in which centroid began

to - node in which centroid is grouped

from - node in which previous centroid is grouped (i.e., node in which indiviual was located before moving to present node)

to_sea - season of annual cycle in which centroid occurred

from_sea - season of annual cycle in which previous centroid occurred

type - movement type to centroid; the first letter represents the season (coded as in "season" column), and the second represents the nature of the movement (WD = dispersal within a season, M = migration among seasons)

type2 - same as "type", but with dispersal movements coded by the stage in which they occur (W = winter, B = breeding, SM = spring migration, WM = winter migration)

count_ind_sp - total number of tracked individuals of the species represented by centroid

weight - base centroid weight (all centroids equal, deployments excluded)

wt_sp - species-adjusted centroid weight: for centroid x in species i, weightx = (N centroidstotal) × (N centroidsi)-1

wt_dur - duration-adjusted centroid weight: for centroid x, weightx = (days at centroid location) × 365-1

wt_sp_sex - species-and-sex-adjusted centroid weight: for centroid x, species i, and sex s, weightx = (N centroidstotal) × (N individualsis)-1

wt_ind -  individual-adjusted centroid weight: for centroid x in individual j, weightx = (N centroidsj)-1

wt_ind_sp - individual-and-species-adjusted centroid weight: for centroid x, individual j, and species i, weightx = (N centroidsj)-1 × (N individualsi)-1



Files (716.0 kB)

Name Size Download all
716.0 kB Preview Download